ade8c20847
43056 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Arnd Bergmann
|
ade8c20847 |
x86/calldepth: Fix incorrect init section references
The addition of callthunks_translate_call_dest means that
skip_addr() and patch_dest() can no longer be discarded
as part of the __init section freeing:
WARNING: modpost: vmlinux.o: section mismatch in reference: callthunks_translate_call_dest.cold (section: .text.unlikely) -> skip_addr (section: .init.text)
WARNING: modpost: vmlinux.o: section mismatch in reference: callthunks_translate_call_dest.cold (section: .text.unlikely) -> patch_dest (section: .init.text)
WARNING: modpost: vmlinux.o: section mismatch in reference: is_callthunk.cold (section: .text.unlikely) -> skip_addr (section: .init.text)
ERROR: modpost: Section mismatches detected.
Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them.
Fixes:
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Jason A. Donenfeld
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3c202d14a9 |
prandom: remove prandom_u32_max()
Convert the final two users of prandom_u32_max() that slipped in during 6.2-rc1 to use get_random_u32_below(). Then, with no more users left, we can finally remove the deprecated function. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> |
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Linus Torvalds
|
6feb57c2fd |
Kbuild updates for v6.2
- Support zstd-compressed debug info
- Allow W=1 builds to detect objects shared among multiple modules
- Add srcrpm-pkg target to generate a source RPM package
- Make the -s option detection work for future GNU Make versions
- Add -Werror to KBUILD_CPPFLAGS when CONFIG_WERROR=y
- Allow W=1 builds to detect -Wundef warnings in any preprocessed files
- Raise the minimum supported version of binutils to 2.25
- Use $(intcmp ...) to compare integers if GNU Make >= 4.4 is used
- Use $(file ...) to read a file if GNU Make >= 4.2 is used
- Print error if GNU Make older than 3.82 is used
- Allow modpost to detect section mismatches with Clang LTO
- Include vmlinuz.efi into kernel tarballs for arm64 CONFIG_EFI_ZBOOT=y
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Merge tag 'kbuild-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Support zstd-compressed debug info
- Allow W=1 builds to detect objects shared among multiple modules
- Add srcrpm-pkg target to generate a source RPM package
- Make the -s option detection work for future GNU Make versions
- Add -Werror to KBUILD_CPPFLAGS when CONFIG_WERROR=y
- Allow W=1 builds to detect -Wundef warnings in any preprocessed files
- Raise the minimum supported version of binutils to 2.25
- Use $(intcmp ...) to compare integers if GNU Make >= 4.4 is used
- Use $(file ...) to read a file if GNU Make >= 4.2 is used
- Print error if GNU Make older than 3.82 is used
- Allow modpost to detect section mismatches with Clang LTO
- Include vmlinuz.efi into kernel tarballs for arm64 CONFIG_EFI_ZBOOT=y
* tag 'kbuild-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (29 commits)
buildtar: fix tarballs with EFI_ZBOOT enabled
modpost: Include '.text.*' in TEXT_SECTIONS
padata: Mark padata_work_init() as __ref
kbuild: ensure Make >= 3.82 is used
kbuild: refactor the prerequisites of the modpost rule
kbuild: change module.order to list *.o instead of *.ko
kbuild: use .NOTINTERMEDIATE for future GNU Make versions
kconfig: refactor Makefile to reduce process forks
kbuild: add read-file macro
kbuild: do not sort after reading modules.order
kbuild: add test-{ge,gt,le,lt} macros
Documentation: raise minimum supported version of binutils to 2.25
kbuild: add -Wundef to KBUILD_CPPFLAGS for W=1 builds
kbuild: move -Werror from KBUILD_CFLAGS to KBUILD_CPPFLAGS
kbuild: Port silent mode detection to future gnu make.
init/version.c: remove #include <generated/utsrelease.h>
firmware_loader: remove #include <generated/utsrelease.h>
modpost: Mark uuid_le type to be suitable only for MEI
kbuild: add ability to make source rpm buildable using koji
kbuild: warn objects shared among multiple modules
...
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Linus Torvalds
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5f6e430f93 |
powerpc updates for 6.2
- Add powerpc qspinlock implementation optimised for large system scalability and
paravirt. See the merge message for more details.
- Enable objtool to be built on powerpc to generate mcount locations.
- Use a temporary mm for code patching with the Radix MMU, so the writable mapping is
restricted to the patching CPU.
- Add an option to build the 64-bit big-endian kernel with the ELFv2 ABI.
- Sanitise user registers on interrupt entry on 64-bit Book3S.
- Many other small features and fixes.
Thanks to: Aboorva Devarajan, Angel Iglesias, Benjamin Gray, Bjorn Helgaas, Bo Liu, Chen
Lifu, Christoph Hellwig, Christophe JAILLET, Christophe Leroy, Christopher M. Riedl, Colin
Ian King, Deming Wang, Disha Goel, Dmitry Torokhov, Finn Thain, Geert Uytterhoeven,
Gustavo A. R. Silva, Haowen Bai, Joel Stanley, Jordan Niethe, Julia Lawall, Kajol Jain,
Laurent Dufour, Li zeming, Miaoqian Lin, Michael Jeanson, Nathan Lynch, Naveen N. Rao,
Nayna Jain, Nicholas Miehlbradt, Nicholas Piggin, Pali Rohár, Randy Dunlap, Rohan McLure,
Russell Currey, Sathvika Vasireddy, Shaomin Deng, Stephen Kitt, Stephen Rothwell, Thomas
Weißschuh, Tiezhu Yang, Uwe Kleine-König, Xie Shaowen, Xiu Jianfeng, XueBing Chen, Yang
Yingliang, Zhang Jiaming, ruanjinjie, Jessica Yu, Wolfram Sang.
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Merge tag 'powerpc-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- Add powerpc qspinlock implementation optimised for large system
scalability and paravirt. See the merge message for more details
- Enable objtool to be built on powerpc to generate mcount locations
- Use a temporary mm for code patching with the Radix MMU, so the
writable mapping is restricted to the patching CPU
- Add an option to build the 64-bit big-endian kernel with the ELFv2
ABI
- Sanitise user registers on interrupt entry on 64-bit Book3S
- Many other small features and fixes
Thanks to Aboorva Devarajan, Angel Iglesias, Benjamin Gray, Bjorn
Helgaas, Bo Liu, Chen Lifu, Christoph Hellwig, Christophe JAILLET,
Christophe Leroy, Christopher M. Riedl, Colin Ian King, Deming Wang,
Disha Goel, Dmitry Torokhov, Finn Thain, Geert Uytterhoeven, Gustavo A.
R. Silva, Haowen Bai, Joel Stanley, Jordan Niethe, Julia Lawall, Kajol
Jain, Laurent Dufour, Li zeming, Miaoqian Lin, Michael Jeanson, Nathan
Lynch, Naveen N. Rao, Nayna Jain, Nicholas Miehlbradt, Nicholas Piggin,
Pali Rohár, Randy Dunlap, Rohan McLure, Russell Currey, Sathvika
Vasireddy, Shaomin Deng, Stephen Kitt, Stephen Rothwell, Thomas
Weißschuh, Tiezhu Yang, Uwe Kleine-König, Xie Shaowen, Xiu Jianfeng,
XueBing Chen, Yang Yingliang, Zhang Jiaming, ruanjinjie, Jessica Yu,
and Wolfram Sang.
* tag 'powerpc-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (181 commits)
powerpc/code-patching: Fix oops with DEBUG_VM enabled
powerpc/qspinlock: Fix 32-bit build
powerpc/prom: Fix 32-bit build
powerpc/rtas: mandate RTAS syscall filtering
powerpc/rtas: define pr_fmt and convert printk call sites
powerpc/rtas: clean up includes
powerpc/rtas: clean up rtas_error_log_max initialization
powerpc/pseries/eeh: use correct API for error log size
powerpc/rtas: avoid scheduling in rtas_os_term()
powerpc/rtas: avoid device tree lookups in rtas_os_term()
powerpc/rtasd: use correct OF API for event scan rate
powerpc/rtas: document rtas_call()
powerpc/pseries: unregister VPA when hot unplugging a CPU
powerpc/pseries: reset the RCU watchdogs after a LPM
powerpc: Take in account addition CPU node when building kexec FDT
powerpc: export the CPU node count
powerpc/cpuidle: Set CPUIDLE_FLAG_POLLING for snooze state
powerpc/dts/fsl: Fix pca954x i2c-mux node names
cxl: Remove unnecessary cxl_pci_window_alignment()
selftests/powerpc: Fix resource leaks
...
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Linus Torvalds
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4f292c4de4 |
New Feature:
* Randomize the per-cpu entry areas Cleanups: * Have CR3_ADDR_MASK use PHYSICAL_PAGE_MASK instead of open coding it * Move to "native" set_memory_rox() helper * Clean up pmd_get_atomic() and i386-PAE * Remove some unused page table size macros -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEV76QKkVc4xCGURexaDWVMHDJkrAFAmOc53UACgkQaDWVMHDJ krCUHw//SGZ+La0hLZLAiAiZTXLZZHpYkOmg1Oj1+11qSU11uZzTFqDpauhaKpRS cJCSh+D+RXe5e2ipgt0+Zl0hESLt7pJf8258OE4ra0DL/IlyO9uqruAs9Kn3eRS/ Fk76nG8gdEU+JKJqpG02GqOLslYQuIy96n9hpuj1x25b614+uezPfC7S4XEat0NT MbJQ+jnVDf16aJIJkzT+iSwhubDVeh+bSHeO0SSCzX23WLUqDeg5NvlyxoCHGbBh UpUTWggV/0pYAkBKRHToeJs8qTWREwuuH/8JGewpe9A0tjdB5wyZfNL2PuracweN 9MauXC3T5f0+Ca4yIIaPq1fF7Ny/PR2dBFihk27rOD0N7tjaZxNwal2pB1sZcmvZ +PAokjyTPVH5ZXjkMYGGAUe1jyjwr2+TgFSZxhTnDuGtyVQiY4pihGKOifLCX6tv x6khvYeTBw7wfaDRtKEAf+2kLHYn+71HszHP/8bNKX9T03h+Zf0i1wdZu5xbM5Gc VK2wR7bCC+UftJJYG0pldcHg2qaF19RBHK2tLwp7zngUv7lTbkKfkgKjre73KV2a D4b76lrqdUMo6UYwYdw7WtDyarZS4OVLq2DcNhwwMddBCaX8kyN5a4AqwQlZYJ0u dM+kuMofE8U3yMxmMhJimkZUsj09yLHIqfynY0jbAcU3nhKZZNY= =wwVF -----END PGP SIGNATURE----- Merge tag 'x86_mm_for_6.2_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 mm updates from Dave Hansen: "New Feature: - Randomize the per-cpu entry areas Cleanups: - Have CR3_ADDR_MASK use PHYSICAL_PAGE_MASK instead of open coding it - Move to "native" set_memory_rox() helper - Clean up pmd_get_atomic() and i386-PAE - Remove some unused page table size macros" * tag 'x86_mm_for_6.2_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (35 commits) x86/mm: Ensure forced page table splitting x86/kasan: Populate shadow for shared chunk of the CPU entry area x86/kasan: Add helpers to align shadow addresses up and down x86/kasan: Rename local CPU_ENTRY_AREA variables to shorten names x86/mm: Populate KASAN shadow for entire per-CPU range of CPU entry area x86/mm: Recompute physical address for every page of per-CPU CEA mapping x86/mm: Rename __change_page_attr_set_clr(.checkalias) x86/mm: Inhibit _PAGE_NX changes from cpa_process_alias() x86/mm: Untangle __change_page_attr_set_clr(.checkalias) x86/mm: Add a few comments x86/mm: Fix CR3_ADDR_MASK x86/mm: Remove P*D_PAGE_MASK and P*D_PAGE_SIZE macros mm: Convert __HAVE_ARCH_P..P_GET to the new style mm: Remove pointless barrier() after pmdp_get_lockless() x86/mm/pae: Get rid of set_64bit() x86_64: Remove pointless set_64bit() usage x86/mm/pae: Be consistent with pXXp_get_and_clear() x86/mm/pae: Use WRITE_ONCE() x86/mm/pae: Don't (ab)use atomic64 mm/gup: Fix the lockless PMD access ... |
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Linus Torvalds
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71a7507afb |
Driver Core changes for 6.2-rc1
Here is the set of driver core and kernfs changes for 6.2-rc1. The "big" change in here is the addition of a new macro, container_of_const() that will preserve the "const-ness" of a pointer passed into it. The "problem" of the current container_of() macro is that if you pass in a "const *", out of it can comes a non-const pointer unless you specifically ask for it. For many usages, we want to preserve the "const" attribute by using the same call. For a specific example, this series changes the kobj_to_dev() macro to use it, allowing it to be used no matter what the const value is. This prevents every subsystem from having to declare 2 different individual macros (i.e. kobj_const_to_dev() and kobj_to_dev()) and having the compiler enforce the const value at build time, which having 2 macros would not do either. The driver for all of this have been discussions with the Rust kernel developers as to how to properly mark driver core, and kobject, objects as being "non-mutable". The changes to the kobject and driver core in this pull request are the result of that, as there are lots of paths where kobjects and device pointers are not modified at all, so marking them as "const" allows the compiler to enforce this. So, a nice side affect of the Rust development effort has been already to clean up the driver core code to be more obvious about object rules. All of this has been bike-shedded in quite a lot of detail on lkml with different names and implementations resulting in the tiny version we have in here, much better than my original proposal. Lots of subsystem maintainers have acked the changes as well. Other than this change, included in here are smaller stuff like: - kernfs fixes and updates to handle lock contention better - vmlinux.lds.h fixes and updates - sysfs and debugfs documentation updates - device property updates All of these have been in the linux-next tree for quite a while with no problems, OTHER than some merge issues with other trees that should be obvious when you hit them (block tree deletes a driver that this tree modifies, iommufd tree modifies code that this tree also touches). If there are merge problems with these trees, please let me know. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCY5wz3A8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+yks0ACeKYUlVgCsER8eYW+x18szFa2QTXgAn2h/VhZe 1Fp53boFaQkGBjl8mGF8 =v+FB -----END PGP SIGNATURE----- Merge tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the set of driver core and kernfs changes for 6.2-rc1. The "big" change in here is the addition of a new macro, container_of_const() that will preserve the "const-ness" of a pointer passed into it. The "problem" of the current container_of() macro is that if you pass in a "const *", out of it can comes a non-const pointer unless you specifically ask for it. For many usages, we want to preserve the "const" attribute by using the same call. For a specific example, this series changes the kobj_to_dev() macro to use it, allowing it to be used no matter what the const value is. This prevents every subsystem from having to declare 2 different individual macros (i.e. kobj_const_to_dev() and kobj_to_dev()) and having the compiler enforce the const value at build time, which having 2 macros would not do either. The driver for all of this have been discussions with the Rust kernel developers as to how to properly mark driver core, and kobject, objects as being "non-mutable". The changes to the kobject and driver core in this pull request are the result of that, as there are lots of paths where kobjects and device pointers are not modified at all, so marking them as "const" allows the compiler to enforce this. So, a nice side affect of the Rust development effort has been already to clean up the driver core code to be more obvious about object rules. All of this has been bike-shedded in quite a lot of detail on lkml with different names and implementations resulting in the tiny version we have in here, much better than my original proposal. Lots of subsystem maintainers have acked the changes as well. Other than this change, included in here are smaller stuff like: - kernfs fixes and updates to handle lock contention better - vmlinux.lds.h fixes and updates - sysfs and debugfs documentation updates - device property updates All of these have been in the linux-next tree for quite a while with no problems" * tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (58 commits) device property: Fix documentation for fwnode_get_next_parent() firmware_loader: fix up to_fw_sysfs() to preserve const usb.h: take advantage of container_of_const() device.h: move kobj_to_dev() to use container_of_const() container_of: add container_of_const() that preserves const-ness of the pointer driver core: fix up missed drivers/s390/char/hmcdrv_dev.c class.devnode() conversion. driver core: fix up missed scsi/cxlflash class.devnode() conversion. driver core: fix up some missing class.devnode() conversions. driver core: make struct class.devnode() take a const * driver core: make struct class.dev_uevent() take a const * cacheinfo: Remove of_node_put() for fw_token device property: Add a blank line in Kconfig of tests device property: Rename goto label to be more precise device property: Move PROPERTY_ENTRY_BOOL() a bit down device property: Get rid of __PROPERTY_ENTRY_ARRAY_EL*SIZE*() kernfs: fix all kernel-doc warnings and multiple typos driver core: pass a const * into of_device_uevent() kobject: kset_uevent_ops: make name() callback take a const * kobject: kset_uevent_ops: make filter() callback take a const * kobject: make kobject_namespace take a const * ... |
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Linus Torvalds
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fe36bb8736 |
Tracing updates for 6.2:
- Add options to the osnoise tracer
o panic_on_stop option that panics the kernel if osnoise is greater than some
user defined threshold.
o preempt option, to test noise while preemption is disabled
o irq option, to test noise when interrupts are disabled
- Add .percent and .graph suffix to histograms to give different outputs
- Add nohitcount to disable showing hitcount in histogram output
- Add new __cpumask() to trace event fields to annotate that a unsigned long
array is a cpumask to user space and should be treated as one.
- Add trace_trigger kernel command line parameter to enable trace event
triggers at boot up. Useful to trace stack traces, disable tracing and take
snapshots.
- Fix x86/kmmio mmio tracer to work with the updates to lockdep
- Unify the panic and die notifiers
- Add back ftrace_expect reference that is used to extract more information in
the ftrace_bug() code.
- Have trigger filter parsing errors show up in the tracing error log.
- Updated MAINTAINERS file to add kernel tracing mailing list and patchwork
info
- Use IDA to keep track of event type numbers.
- And minor fixes and clean ups
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Merge tag 'trace-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing updates from Steven Rostedt:
- Add options to the osnoise tracer:
- 'panic_on_stop' option that panics the kernel if osnoise is
greater than some user defined threshold.
- 'preempt' option, to test noise while preemption is disabled
- 'irq' option, to test noise when interrupts are disabled
- Add .percent and .graph suffix to histograms to give different
outputs
- Add nohitcount to disable showing hitcount in histogram output
- Add new __cpumask() to trace event fields to annotate that a unsigned
long array is a cpumask to user space and should be treated as one.
- Add trace_trigger kernel command line parameter to enable trace event
triggers at boot up. Useful to trace stack traces, disable tracing
and take snapshots.
- Fix x86/kmmio mmio tracer to work with the updates to lockdep
- Unify the panic and die notifiers
- Add back ftrace_expect reference that is used to extract more
information in the ftrace_bug() code.
- Have trigger filter parsing errors show up in the tracing error log.
- Updated MAINTAINERS file to add kernel tracing mailing list and
patchwork info
- Use IDA to keep track of event type numbers.
- And minor fixes and clean ups
* tag 'trace-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (44 commits)
tracing: Fix cpumask() example typo
tracing: Improve panic/die notifiers
ftrace: Prevent RCU stall on PREEMPT_VOLUNTARY kernels
tracing: Do not synchronize freeing of trigger filter on boot up
tracing: Remove pointer (asterisk) and brackets from cpumask_t field
tracing: Have trigger filter parsing errors show up in error_log
x86/mm/kmmio: Remove redundant preempt_disable()
tracing: Fix infinite loop in tracing_read_pipe on overflowed print_trace_line
Documentation/osnoise: Add osnoise/options documentation
tracing/osnoise: Add preempt and/or irq disabled options
tracing/osnoise: Add PANIC_ON_STOP option
Documentation/osnoise: Escape underscore of NO_ prefix
tracing: Fix some checker warnings
tracing/osnoise: Make osnoise_options static
tracing: remove unnecessary trace_trigger ifdef
ring-buffer: Handle resize in early boot up
tracing/hist: Fix issue of losting command info in error_log
tracing: Fix issue of missing one synthetic field
tracing/hist: Fix out-of-bound write on 'action_data.var_ref_idx'
tracing/hist: Fix wrong return value in parse_action_params()
...
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Linus Torvalds
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8fa590bf34 |
ARM64:
* Enable the per-vcpu dirty-ring tracking mechanism, together with an option to keep the good old dirty log around for pages that are dirtied by something other than a vcpu. * Switch to the relaxed parallel fault handling, using RCU to delay page table reclaim and giving better performance under load. * Relax the MTE ABI, allowing a VMM to use the MAP_SHARED mapping option, which multi-process VMMs such as crosvm rely on (see merge commit |
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Dave Hansen
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3e844d842d |
x86/mm: Ensure forced page table splitting
There are a few kernel users like kfence that require 4k pages to work
correctly and do not support large mappings. They use set_memory_4k()
to break down those large mappings.
That, in turn relies on cpa_data->force_split option to indicate to
set_memory code that it should split page tables regardless of whether
the need to be.
But, a recent change added an optimization which would return early
if a set_memory request came in that did not change permissions. It
did not consult ->force_split and would mistakenly optimize away the
splitting that set_memory_4k() needs. This broke kfence.
Skip the same-permission optimization when ->force_split is set.
Fixes: 127960a05548 ("x86/mm: Inhibit _PAGE_NX changes from cpa_process_alias()")
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Tested-by: Marco Elver <elver@google.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/all/CA+G9fYuFxZTxkeS35VTZMXwQvohu73W3xbZ5NtjebsVvH6hCuA@mail.gmail.com/
|
||
Sean Christopherson
|
1cfaac2400 |
x86/kasan: Populate shadow for shared chunk of the CPU entry area
Popuplate the shadow for the shared portion of the CPU entry area, i.e. the read-only IDT mapping, during KASAN initialization. A recent change modified KASAN to map the per-CPU areas on-demand, but forgot to keep a shadow for the common area that is shared amongst all CPUs. Map the common area in KASAN init instead of letting idt_map_in_cea() do the dirty work so that it Just Works in the unlikely event more shared data is shoved into the CPU entry area. The bug manifests as a not-present #PF when software attempts to lookup an IDT entry, e.g. when KVM is handling IRQs on Intel CPUs (KVM performs direct CALL to the IRQ handler to avoid the overhead of INTn): BUG: unable to handle page fault for address: fffffbc0000001d8 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 16c03a067 P4D 16c03a067 PUD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 5 PID: 901 Comm: repro Tainted: G W 6.1.0-rc3+ #410 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 RIP: 0010:kasan_check_range+0xdf/0x190 vmx_handle_exit_irqoff+0x152/0x290 [kvm_intel] vcpu_run+0x1d89/0x2bd0 [kvm] kvm_arch_vcpu_ioctl_run+0x3ce/0xa70 [kvm] kvm_vcpu_ioctl+0x349/0x900 [kvm] __x64_sys_ioctl+0xb8/0xf0 do_syscall_64+0x2b/0x50 entry_SYSCALL_64_after_hwframe+0x46/0xb0 Fixes: 9fd429c28073 ("x86/kasan: Map shadow for percpu pages on demand") Reported-by: syzbot+8cdd16fd5a6c0565e227@syzkaller.appspotmail.com Signed-off-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20221110203504.1985010-6-seanjc@google.com |
||
|
Sean Christopherson
|
bde258d974 |
x86/kasan: Add helpers to align shadow addresses up and down
Add helpers to dedup code for aligning shadow address up/down to page boundaries when translating an address to its shadow. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Andrey Ryabinin <ryabinin.a.a@gmail.com> Link: https://lkml.kernel.org/r/20221110203504.1985010-5-seanjc@google.com |
||
|
Sean Christopherson
|
7077d2ccb9 |
x86/kasan: Rename local CPU_ENTRY_AREA variables to shorten names
Rename the CPU entry area variables in kasan_init() to shorten their names, a future fix will reference the beginning of the per-CPU portion of the CPU entry area, and shadow_cpu_entry_per_cpu_begin is a bit much. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Andrey Ryabinin <ryabinin.a.a@gmail.com> Link: https://lkml.kernel.org/r/20221110203504.1985010-4-seanjc@google.com |
||
|
Sean Christopherson
|
97650148a1 |
x86/mm: Populate KASAN shadow for entire per-CPU range of CPU entry area
Populate a KASAN shadow for the entire possible per-CPU range of the CPU
entry area instead of requiring that each individual chunk map a shadow.
Mapping shadows individually is error prone, e.g. the per-CPU GDT mapping
was left behind, which can lead to not-present page faults during KASAN
validation if the kernel performs a software lookup into the GDT. The DS
buffer is also likely affected.
The motivation for mapping the per-CPU areas on-demand was to avoid
mapping the entire 512GiB range that's reserved for the CPU entry area,
shaving a few bytes by not creating shadows for potentially unused memory
was not a goal.
The bug is most easily reproduced by doing a sigreturn with a garbage
CS in the sigcontext, e.g.
int main(void)
{
struct sigcontext regs;
syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
memset(®s, 0, sizeof(regs));
regs.cs = 0x1d0;
syscall(__NR_rt_sigreturn);
return 0;
}
to coerce the kernel into doing a GDT lookup to compute CS.base when
reading the instruction bytes on the subsequent #GP to determine whether
or not the #GP is something the kernel should handle, e.g. to fixup UMIP
violations or to emulate CLI/STI for IOPL=3 applications.
BUG: unable to handle page fault for address: fffffbc8379ace00
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 16c03a067 P4D 16c03a067 PUD 15b990067 PMD 15b98f067 PTE 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 3 PID: 851 Comm: r2 Not tainted 6.1.0-rc3-next-20221103+ #432
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
RIP: 0010:kasan_check_range+0xdf/0x190
Call Trace:
<TASK>
get_desc+0xb0/0x1d0
insn_get_seg_base+0x104/0x270
insn_fetch_from_user+0x66/0x80
fixup_umip_exception+0xb1/0x530
exc_general_protection+0x181/0x210
asm_exc_general_protection+0x22/0x30
RIP: 0003:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0003:0000000000000000 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000000001d0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
Fixes: 9fd429c28073 ("x86/kasan: Map shadow for percpu pages on demand")
Reported-by: syzbot+ffb4f000dc2872c93f62@syzkaller.appspotmail.com
Suggested-by: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Link: https://lkml.kernel.org/r/20221110203504.1985010-3-seanjc@google.com
|
||
|
Sean Christopherson
|
80d72a8f76 |
x86/mm: Recompute physical address for every page of per-CPU CEA mapping
Recompute the physical address for each per-CPU page in the CPU entry
area, a recent commit inadvertantly modified cea_map_percpu_pages() such
that every PTE is mapped to the physical address of the first page.
Fixes: 9fd429c28073 ("x86/kasan: Map shadow for percpu pages on demand")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Link: https://lkml.kernel.org/r/20221110203504.1985010-2-seanjc@google.com
|
||
Peter Zijlstra
|
e996365ee7 |
x86/mm: Rename __change_page_attr_set_clr(.checkalias)
Now that the checkalias functionality is taken by CPA_NO_CHECK_ALIAS rename the argument to better match is remaining purpose: primary, matching __change_page_attr(). Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20221110125544.661001508%40infradead.org |
||
|
Peter Zijlstra
|
d597416683 |
x86/mm: Inhibit _PAGE_NX changes from cpa_process_alias()
There is a cludge in change_page_attr_set_clr() that inhibits
propagating NX changes to the aliases (directmap and highmap) -- this
is a cludge twofold:
- it also inhibits the primary checks in __change_page_attr();
- it hard depends on single bit changes.
The introduction of set_memory_rox() triggered this last issue for
clearing both _PAGE_RW and _PAGE_NX.
Explicitly ignore _PAGE_NX in cpa_process_alias() instead.
Fixes: b38994948567 ("x86/mm: Implement native set_memory_rox()")
Reported-by: kernel test robot <oliver.sang@intel.com>
Debugged-by: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20221110125544.594991716%40infradead.org
|
||
|
Peter Zijlstra
|
ef9ab81af6 |
x86/mm: Untangle __change_page_attr_set_clr(.checkalias)
The .checkalias argument to __change_page_attr_set_clr() is overloaded
and serves two different purposes:
- it inhibits the call to cpa_process_alias() -- as suggested by the
name; however,
- it also serves as 'primary' indicator for __change_page_attr()
( which in turn also serves as a recursion terminator for
cpa_process_alias() ).
Untangle these by extending the use of CPA_NO_CHECK_ALIAS to all
callsites that currently use .checkalias=0 for this purpose.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20221110125544.527267183%40infradead.org
|
||
|
Peter Zijlstra
|
5ceeee7571 |
x86/mm: Add a few comments
It's a shame to hide useful comments in Changelogs, add some to the
code.
Shamelessly stolen from commit:
|
||
Kirill A. Shutemov
|
80d0969aa7 |
x86/mm: Fix CR3_ADDR_MASK
The mask must not include bits above physical address mask. These bits are reserved and can be used for other things. Bits 61 and 62 are used for Linear Address Masking. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Rick Edgecombe <rick.p.edgecombe@intel.com> Reviewed-by: Alexander Potapenko <glider@google.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Alexander Potapenko <glider@google.com> Link: https://lore.kernel.org/all/20221109165140.9137-2-kirill.shutemov%40linux.intel.com |
||
Pasha Tatashin
|
82328227db |
x86/mm: Remove P*D_PAGE_MASK and P*D_PAGE_SIZE macros
Other architectures and the common mm/ use P*D_MASK, and P*D_SIZE. Remove the duplicated P*D_PAGE_MASK and P*D_PAGE_SIZE which are only used in x86/*. Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Link: https://lore.kernel.org/r/20220516185202.604654-1-tatashin@google.com |
||
|
Peter Zijlstra
|
d4a72e7fe6 |
x86/mm/pae: Get rid of set_64bit()
Recognise that set_64bit() is a special case of our previously introduced pxx_xchg64(), so use that and get rid of set_64bit(). Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20221022114425.233481884%40infradead.org |
||
|
Peter Zijlstra
|
9ee850acd2 |
x86_64: Remove pointless set_64bit() usage
The use of set_64bit() in X86_64 only code is pretty pointless, seeing how it's a direct assignment. Remove all this nonsense. [nathanchance: unbreak irte] Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20221022114425.168036718%40infradead.org |
||
|
Peter Zijlstra
|
b7301f2010 |
x86/mm/pae: Be consistent with pXXp_get_and_clear()
Given that ptep_get_and_clear() uses cmpxchg8b, and that should be by far the most common case, there's no point in having an optimized variant for pmd/pud. Introduce the pxx_xchg64() helper to implement the common logic once. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20221022114425.103392961%40infradead.org |
||
|
Peter Zijlstra
|
f7bcd4617d |
x86/mm/pae: Use WRITE_ONCE()
Disallow write-tearing, that would be really unfortunate. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20221022114425.038102604%40infradead.org |
||
|
Peter Zijlstra
|
7a9b8bdb6a |
x86/mm/pae: Don't (ab)use atomic64
PAE implies CX8, write readable code. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20221022114424.971450128%40infradead.org |
||
|
Peter Zijlstra
|
6ca297d478 |
mm: Rename GUP_GET_PTE_LOW_HIGH
Since it no longer applies to only PTEs, rename it to PXX. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20221022114424.776404066%40infradead.org |
||
|
Peter Zijlstra
|
024d232ae4 |
mm: Fix pmd_read_atomic()
AFAICT there's no reason to do anything different than what we do for PTEs. Make it so (also affects SH). Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20221022114424.711181252%40infradead.org |
||
|
Peter Zijlstra
|
fbfdec9989 |
x86/mm/pae: Make pmd_t similar to pte_t
Instead of mucking about with at least 2 different ways of fudging it, do the same thing we do for pte_t. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20221022114424.580310787%40infradead.org |
||
|
Peter Zijlstra
|
60463628c9 |
x86/mm: Implement native set_memory_rox()
Provide a native implementation of set_memory_rox(), avoiding the double set_memory_ro();set_memory_x(); calls. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> |
||
|
Peter Zijlstra
|
d48567c9a0 |
mm: Introduce set_memory_rox()
Because endlessly repeating: set_memory_ro() set_memory_x() is getting tedious. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/Y1jek64pXOsougmz@hirez.programming.kicks-ass.net |
||
|
Peter Zijlstra
|
414ebf148c |
x86/mm: Do verify W^X at boot up
Straight up revert of commit:
|
||
|
Peter Zijlstra
|
eb7d389d5b |
x86/ftrace: Remove SYSTEM_BOOTING exceptions
Now that text_poke is available before ftrace, remove the SYSTEM_BOOTING exceptions. Specifically, this cures a W+X case during boot. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20221025201057.945960823@infradead.org |
||
|
Peter Zijlstra
|
3f4c8211d9 |
x86/mm: Use mm_alloc() in poking_init()
Instead of duplicating init_mm, allocate a fresh mm. The advantage is that mm_alloc() has much simpler dependencies. Additionally it makes more conceptual sense, init_mm has no (and must not have) user state to duplicate. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20221025201057.816175235@infradead.org |
||
|
Peter Zijlstra
|
97e3d26b5e |
x86/mm: Randomize per-cpu entry area
Seth found that the CPU-entry-area; the piece of per-cpu data that is mapped into the userspace page-tables for kPTI is not subject to any randomization -- irrespective of kASLR settings. On x86_64 a whole P4D (512 GB) of virtual address space is reserved for this structure, which is plenty large enough to randomize things a little. As such, use a straight forward randomization scheme that avoids duplicates to spread the existing CPUs over the available space. [ bp: Fix le build. ] Reported-by: Seth Jenkins <sethjenkins@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> |
||
Andrey Ryabinin
|
3f148f3318 |
x86/kasan: Map shadow for percpu pages on demand
KASAN maps shadow for the entire CPU-entry-area: [CPU_ENTRY_AREA_BASE, CPU_ENTRY_AREA_BASE + CPU_ENTRY_AREA_MAP_SIZE] This will explode once the per-cpu entry areas are randomized since it will increase CPU_ENTRY_AREA_MAP_SIZE to 512 GB and KASAN fails to allocate shadow for such big area. Fix this by allocating KASAN shadow only for really used cpu entry area addresses mapped by cea_map_percpu_pages() Thanks to the 0day folks for finding and reporting this to be an issue. [ dhansen: tweak changelog since this will get committed before peterz's actual cpu-entry-area randomization ] Signed-off-by: Andrey Ryabinin <ryabinin.a.a@gmail.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Tested-by: Yujie Liu <yujie.liu@intel.com> Cc: kernel test robot <yujie.liu@intel.com> Link: https://lore.kernel.org/r/202210241508.2e203c3d-yujie.liu@intel.com |
||
|
Linus Torvalds
|
c0f234ff90 |
gpio: updates for v6.2
GPIO core:
- teach gpiolib to work with software nodes for HW description
- remove ARCH_NR_GPIOS treewide as we no longer impose any limit on the number
of GPIOS since the allocation became entirely dynamic
- add support for HW quirks for Cirrus CS42L56 codec, Marvell NFC controller,
Freescale PCIe and Ethernet controller, Himax LCDs and Mediatek mt2701
- refactor OF quirk code
- some general refactoring of the OF and ACPI code, adding new helpers, minor
tweaks and fixes, making fwnode usage consistent etc.
GPIO uAPI:
- fix an issue where the user-space can trigger a NULL-pointer dereference in
the kernel by opening a device file, forcing a driver unbind and then calling
one of the syscalls on the associated file descriptor
New drivers:
- add gpio-latch: a new GPIO multiplexer based on latches connected to other
GPIOs
Driver updates:
- convert i2c GPIO expanders to using .probe_new()
- drop the gpio-sta2x11 driver
- factor out common code for the ACCES IDIO-16 family of controllers and use
this new library wherever applicable in drivers
- add DT support to gpio-hisi
- allow building gpio-davinci as a module and increase its maxItems property
- add support for a new model to gpio-pca9570
- other minor changes to various drivers
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Merge tag 'gpio-updates-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We have a new GPIO multiplexer driver, bunch of driver updates and
refactoring in the core GPIO library.
GPIO core:
- teach gpiolib to work with software nodes for HW description
- remove ARCH_NR_GPIOS treewide as we no longer impose any limit on
the number of GPIOS since the allocation became entirely dynamic
- add support for HW quirks for Cirrus CS42L56 codec, Marvell NFC
controller, Freescale PCIe and Ethernet controller, Himax LCDs and
Mediatek mt2701
- refactor OF quirk code
- some general refactoring of the OF and ACPI code, adding new
helpers, minor tweaks and fixes, making fwnode usage consistent
etc.
GPIO uAPI:
- fix an issue where the user-space can trigger a NULL-pointer
dereference in the kernel by opening a device file, forcing a
driver unbind and then calling one of the syscalls on the
associated file descriptor
New drivers:
- add gpio-latch: a new GPIO multiplexer based on latches connected
to other GPIOs
Driver updates:
- convert i2c GPIO expanders to using .probe_new()
- drop the gpio-sta2x11 driver
- factor out common code for the ACCES IDIO-16 family of controllers
and use this new library wherever applicable in drivers
- add DT support to gpio-hisi
- allow building gpio-davinci as a module and increase its maxItems
property
- add support for a new model to gpio-pca9570
- other minor changes to various drivers"
* tag 'gpio-updates-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (66 commits)
gpio: sim: set a limit on the number of GPIOs
gpiolib: protect the GPIO device against being dropped while in use by user-space
gpiolib: cdev: fix NULL-pointer dereferences
gpiolib: Provide to_gpio_device() helper
gpiolib: Unify access to the device properties
gpio: Do not include <linux/kernel.h> when not really needed.
gpio: pcf857x: Convert to i2c's .probe_new()
gpio: pca953x: Convert to i2c's .probe_new()
gpio: max732x: Convert to i2c's .probe_new()
dt-bindings: gpio: gpio-davinci: Increase maxItems in gpio-line-names
gpiolib: ensure that fwnode is properly set
gpio: sl28cpld: Replace irqchip mask_invert with unmask_base
gpiolib: of: Use correct fwnode for DT-probed chips
gpiolib: of: Drop redundant check in of_mm_gpiochip_remove()
gpiolib: of: Prepare of_mm_gpiochip_add_data() for fwnode
gpiolib: add support for software nodes
gpiolib: consolidate GPIO lookups
gpiolib: acpi: avoid leaking ACPI details into upper gpiolib layers
gpiolib: acpi: teach acpi_find_gpio() to handle data-only nodes
gpiolib: acpi: change acpi_find_gpio() to accept firmware node
...
|
||
|
Linus Torvalds
|
94a855111e |
- Add the call depth tracking mitigation for Retbleed which has
been long in the making. It is a lighterweight software-only fix for Skylake-based cores where enabling IBRS is a big hammer and causes a significant performance impact. What it basically does is, it aligns all kernel functions to 16 bytes boundary and adds a 16-byte padding before the function, objtool collects all functions' locations and when the mitigation gets applied, it patches a call accounting thunk which is used to track the call depth of the stack at any time. When that call depth reaches a magical, microarchitecture-specific value for the Return Stack Buffer, the code stuffs that RSB and avoids its underflow which could otherwise lead to the Intel variant of Retbleed. This software-only solution brings a lot of the lost performance back, as benchmarks suggest: https://lore.kernel.org/all/20220915111039.092790446@infradead.org/ That page above also contains a lot more detailed explanation of the whole mechanism - Implement a new control flow integrity scheme called FineIBT which is based on the software kCFI implementation and uses hardware IBT support where present to annotate and track indirect branches using a hash to validate them - Other misc fixes and cleanups -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmOZp5EACgkQEsHwGGHe VUrZFxAAvi/+8L0IYSK4mKJvixGbTFjxN/Swo2JVOfs34LqGUT6JaBc+VUMwZxdb VMTFIZ3ttkKEodjhxGI7oGev6V8UfhI37SmO2lYKXpQVjXXnMlv/M+Vw3teE38CN gopi+xtGnT1IeWQ3tc/Tv18pleJ0mh5HKWiW+9KoqgXj0wgF9x4eRYDz1TDCDA/A iaBzs56j8m/FSykZHnrWZ/MvjKNPdGlfJASUCPeTM2dcrXQGJ93+X2hJctzDte0y Nuiw6Y0htfFBE7xoJn+sqm5Okr+McoUM18/CCprbgSKYk18iMYm3ZtAi6FUQZS1A ua4wQCf49loGp15PO61AS5d3OBf5D3q/WihQRbCaJvTVgPp9sWYnWwtcVUuhMllh ZQtBU9REcVJ/22bH09Q9CjBW0VpKpXHveqQdqRDViLJ6v/iI6EFGmD24SW/VxyRd 73k9MBGrL/dOf1SbEzdsnvcSB3LGzp0Om8o/KzJWOomrVKjBCJy16bwTEsCZEJmP i406m92GPXeaN1GhTko7vmF0GnkEdJs1GVCZPluCAxxbhHukyxHnrjlQjI4vC80n Ylc0B3Kvitw7LGJsPqu+/jfNHADC/zhx1qz/30wb5cFmFbN1aRdp3pm8JYUkn+l/ zri2Y6+O89gvE/9/xUhMohzHsWUO7xITiBavewKeTP9GSWybWUs= =cRy1 -----END PGP SIGNATURE----- Merge tag 'x86_core_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 core updates from Borislav Petkov: - Add the call depth tracking mitigation for Retbleed which has been long in the making. It is a lighterweight software-only fix for Skylake-based cores where enabling IBRS is a big hammer and causes a significant performance impact. What it basically does is, it aligns all kernel functions to 16 bytes boundary and adds a 16-byte padding before the function, objtool collects all functions' locations and when the mitigation gets applied, it patches a call accounting thunk which is used to track the call depth of the stack at any time. When that call depth reaches a magical, microarchitecture-specific value for the Return Stack Buffer, the code stuffs that RSB and avoids its underflow which could otherwise lead to the Intel variant of Retbleed. This software-only solution brings a lot of the lost performance back, as benchmarks suggest: https://lore.kernel.org/all/20220915111039.092790446@infradead.org/ That page above also contains a lot more detailed explanation of the whole mechanism - Implement a new control flow integrity scheme called FineIBT which is based on the software kCFI implementation and uses hardware IBT support where present to annotate and track indirect branches using a hash to validate them - Other misc fixes and cleanups * tag 'x86_core_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (80 commits) x86/paravirt: Use common macro for creating simple asm paravirt functions x86/paravirt: Remove clobber bitmask from .parainstructions x86/debug: Include percpu.h in debugreg.h to get DECLARE_PER_CPU() et al x86/cpufeatures: Move X86_FEATURE_CALL_DEPTH from bit 18 to bit 19 of word 11, to leave space for WIP X86_FEATURE_SGX_EDECCSSA bit x86/Kconfig: Enable kernel IBT by default x86,pm: Force out-of-line memcpy() objtool: Fix weak hole vs prefix symbol objtool: Optimize elf_dirty_reloc_sym() x86/cfi: Add boot time hash randomization x86/cfi: Boot time selection of CFI scheme x86/ibt: Implement FineIBT objtool: Add --cfi to generate the .cfi_sites section x86: Add prefix symbols for function padding objtool: Add option to generate prefix symbols objtool: Avoid O(bloody terrible) behaviour -- an ode to libelf objtool: Slice up elf_create_section_symbol() kallsyms: Revert "Take callthunks into account" x86: Unconfuse CONFIG_ and X86_FEATURE_ namespaces x86/retpoline: Fix crash printing warning x86/paravirt: Fix a !PARAVIRT build warning ... |
||
|
Linus Torvalds
|
64e7003c6b |
This update includes the following changes:
API: - Optimise away self-test overhead when they are disabled. - Support symmetric encryption via keyring keys in af_alg. - Flip hwrng default_quality, the default is now maximum entropy. Algorithms: - Add library version of aesgcm. - CFI fixes for assembly code. - Add arm/arm64 accelerated versions of sm3/sm4. Drivers: - Remove assumption on arm64 that kmalloc is DMA-aligned. - Fix selftest failures in rockchip. - Add support for RK3328/RK3399 in rockchip. - Add deflate support in qat. - Merge ux500 into stm32. - Add support for TEE for PCI ID 0x14CA in ccp. - Add mt7986 support in mtk. - Add MaxLinear platform support in inside-secure. - Add NPCM8XX support in npcm. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEn51F/lCuNhUwmDeSxycdCkmxi6cFAmOZhNQACgkQxycdCkmx i6edOQ/+IHYe2Z+fLsMGs0qgTVaEV33O0crTRl/PMkfBJai57grz6x/G9QrkwGHS 084u4RmwhVrE7Z/pxvey48m0lHMw3H/ElLTRl5LV1zE2OtGgr4VV63wtqthu1QS1 KblVnjb52DhFhvF1O1IrK9lxyX0lByOiARFVdyZR6+Rb66Xfq8rqk5t8U8mmTUFz ds9S2Un4HajgtjNEyI78DOX8o4wVST8tltQs0eVii6T9AeXgSgX37ytD7Xtg/zrz /p61KFgKBQkRT7EEGD6xgNrND0vNAp2w98ZTTRXTZI8+Y0aTUcTYya7cXOLBt9bQ rA7z9sNKvmwJijTMV6O9eqRGcYfzc2G4qfMhlQqj/P2pjLnEZXdvFNHTTbclR76h 2UFlZXPDQVQukvnNNnB6bmIvv6DsM+jmGH0pK5BnBJXnD5SOZh1RqjJxw0Kj6QCM VxpKDvfStux2Guh6mz1lJna/S44qKy/sVYkWUawcmE4RF2+GfNayM1GUpEUofndE vz1yZdgLPETSh5QzKrjFkUAnqo/AsAdc5Qxroz9DRz1BCC0GCuIxjUG8ScTWgcth R/reQDczBckCNpPxrWPHHYoVXnAMwEFySfcjZyuCoMO6t6qVUvcjRShCyKwO/JPl 9YREdRmq0swwIB9cFIrEoWrzc3wjjBtsltDFlkKsa9c92LXoW+g= =OpWt -----END PGP SIGNATURE----- Merge tag 'v6.2-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto updates from Herbert Xu: "API: - Optimise away self-test overhead when they are disabled - Support symmetric encryption via keyring keys in af_alg - Flip hwrng default_quality, the default is now maximum entropy Algorithms: - Add library version of aesgcm - CFI fixes for assembly code - Add arm/arm64 accelerated versions of sm3/sm4 Drivers: - Remove assumption on arm64 that kmalloc is DMA-aligned - Fix selftest failures in rockchip - Add support for RK3328/RK3399 in rockchip - Add deflate support in qat - Merge ux500 into stm32 - Add support for TEE for PCI ID 0x14CA in ccp - Add mt7986 support in mtk - Add MaxLinear platform support in inside-secure - Add NPCM8XX support in npcm" * tag 'v6.2-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (184 commits) crypto: ux500/cryp - delete driver crypto: stm32/cryp - enable for use with Ux500 crypto: stm32 - enable drivers to be used on Ux500 dt-bindings: crypto: Let STM32 define Ux500 CRYP hwrng: geode - Fix PCI device refcount leak hwrng: amd - Fix PCI device refcount leak crypto: qce - Set DMA alignment explicitly crypto: octeontx2 - Set DMA alignment explicitly crypto: octeontx - Set DMA alignment explicitly crypto: keembay - Set DMA alignment explicitly crypto: safexcel - Set DMA alignment explicitly crypto: hisilicon/hpre - Set DMA alignment explicitly crypto: chelsio - Set DMA alignment explicitly crypto: ccree - Set DMA alignment explicitly crypto: ccp - Set DMA alignment explicitly crypto: cavium - Set DMA alignment explicitly crypto: img-hash - Fix variable dereferenced before check 'hdev->req' crypto: arm64/ghash-ce - use frame_push/pop macros consistently crypto: arm64/crct10dif - use frame_push/pop macros consistently crypto: arm64/aes-modes - use frame_push/pop macros consistently ... |
||
|
Linus Torvalds
|
48ea09cdda |
hardening updates for v6.2-rc1
- Convert flexible array members, fix -Wstringop-overflow warnings,
and fix KCFI function type mismatches that went ignored by
maintainers (Gustavo A. R. Silva, Nathan Chancellor, Kees Cook).
- Remove the remaining side-effect users of ksize() by converting
dma-buf, btrfs, and coredump to using kmalloc_size_roundup(),
add more __alloc_size attributes, and introduce full testing
of all allocator functions. Finally remove the ksize() side-effect
so that each allocation-aware checker can finally behave without
exceptions.
- Introduce oops_limit (default 10,000) and warn_limit (default off)
to provide greater granularity of control for panic_on_oops and
panic_on_warn (Jann Horn, Kees Cook).
- Introduce overflows_type() and castable_to_type() helpers for
cleaner overflow checking.
- Improve code generation for strscpy() and update str*() kern-doc.
- Convert strscpy and sigphash tests to KUnit, and expand memcpy
tests.
- Always use a non-NULL argument for prepare_kernel_cred().
- Disable structleak plugin in FORTIFY KUnit test (Anders Roxell).
- Adjust orphan linker section checking to respect CONFIG_WERROR
(Xin Li).
- Make sure siginfo is cleared for forced SIGKILL (haifeng.xu).
- Fix um vs FORTIFY warnings for always-NULL arguments.
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Merge tag 'hardening-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull kernel hardening updates from Kees Cook:
- Convert flexible array members, fix -Wstringop-overflow warnings, and
fix KCFI function type mismatches that went ignored by maintainers
(Gustavo A. R. Silva, Nathan Chancellor, Kees Cook)
- Remove the remaining side-effect users of ksize() by converting
dma-buf, btrfs, and coredump to using kmalloc_size_roundup(), add
more __alloc_size attributes, and introduce full testing of all
allocator functions. Finally remove the ksize() side-effect so that
each allocation-aware checker can finally behave without exceptions
- Introduce oops_limit (default 10,000) and warn_limit (default off) to
provide greater granularity of control for panic_on_oops and
panic_on_warn (Jann Horn, Kees Cook)
- Introduce overflows_type() and castable_to_type() helpers for cleaner
overflow checking
- Improve code generation for strscpy() and update str*() kern-doc
- Convert strscpy and sigphash tests to KUnit, and expand memcpy tests
- Always use a non-NULL argument for prepare_kernel_cred()
- Disable structleak plugin in FORTIFY KUnit test (Anders Roxell)
- Adjust orphan linker section checking to respect CONFIG_WERROR (Xin
Li)
- Make sure siginfo is cleared for forced SIGKILL (haifeng.xu)
- Fix um vs FORTIFY warnings for always-NULL arguments
* tag 'hardening-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (31 commits)
ksmbd: replace one-element arrays with flexible-array members
hpet: Replace one-element array with flexible-array member
um: virt-pci: Avoid GCC non-NULL warning
signal: Initialize the info in ksignal
lib: fortify_kunit: build without structleak plugin
panic: Expose "warn_count" to sysfs
panic: Introduce warn_limit
panic: Consolidate open-coded panic_on_warn checks
exit: Allow oops_limit to be disabled
exit: Expose "oops_count" to sysfs
exit: Put an upper limit on how often we can oops
panic: Separate sysctl logic from CONFIG_SMP
mm/pgtable: Fix multiple -Wstringop-overflow warnings
mm: Make ksize() a reporting-only function
kunit/fortify: Validate __alloc_size attribute results
drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid()
drm/fsl-dcu: Fix return type of fsl_dcu_drm_connector_mode_valid()
driver core: Add __alloc_size hint to devm allocators
overflow: Introduce overflows_type() and castable_to_type()
coredump: Proactively round up to kmalloc bucket size
...
|
||
|
Linus Torvalds
|
c7020e1b34 |
pci-v6.2-changes
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Merge tag 'pci-v6.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Squash portdrv_{core,pci}.c into portdrv.c to ease maintenance and
make more things static.
- Make portdrv bind to Switch Ports that have AER. Previously, if
these Ports lacked MSI/MSI-X, portdrv failed to bind, which meant
the Ports couldn't be suspended to low-power states. AER on these
Ports doesn't use interrupts, and the AER driver doesn't need to
claim them.
- Assign PCI domain IDs using ida_alloc(), which makes host bridge
add/remove work better.
Resource management:
- To work better with recent BIOSes that use EfiMemoryMappedIO for
PCI host bridge apertures, remove those regions from the E820 map
(E820 entries normally prevent us from allocating BARs). In v5.19,
we added some quirks to disable E820 checking, but that's not very
maintainable. EfiMemoryMappedIO means the OS needs to map the
region for use by EFI runtime services; it shouldn't prevent OS
from using it.
PCIe native device hotplug:
- Build pciehp by default if USB4 is enabled, since Thunderbolt/USB4
PCIe tunneling depends on native PCIe hotplug.
- Enable Command Completed Interrupt only if supported to avoid user
confusion from lspci output that says this is enabled but not
supported.
- Prevent pciehp from binding to Switch Upstream Ports; this happened
because of interaction with acpiphp and caused devices below the
Upstream Port to disappear.
Power management:
- Convert AGP drivers to generic power management. We hope to remove
legacy power management from the PCI core eventually.
Virtualization:
- Fix pci_device_is_present(), which previously always returned
"false" for VFs, causing virtio hangs when unbinding the driver.
Miscellaneous:
- Convert drivers to gpiod API to prepare for dropping some legacy
code.
- Fix DOE fencepost error for the maximum data object length.
Baikal-T1 PCIe controller driver:
- Add driver and DT bindings.
Broadcom STB PCIe controller driver:
- Enable Multi-MSI.
- Delay 100ms after PERST# deassert to allow power and clocks to
stabilize.
- Configure Read Completion Boundary to 64 bytes.
Freescale i.MX6 PCIe controller driver:
- Initialize PHY before deasserting core reset to fix a regression in
v6.0 on boards where the PHY provides the reference.
- Fix imx6sx and imx8mq clock names in DT schema.
Intel VMD host bridge driver:
- Fix Secondary Bus Reset on VMD bridges, which allows reset of NVMe
SSDs in VT-d pass-through scenarios.
- Disable MSI remapping, which gets re-enabled by firmware during
suspend/resume.
MediaTek PCIe Gen3 controller driver:
- Add MT7986 and MT8195 support.
Qualcomm PCIe controller driver:
- Add SC8280XP/SA8540P basic interconnect support.
Rockchip DesignWare PCIe controller driver:
- Base DT schema on common Synopsys schema.
Synopsys DesignWare PCIe core:
- Collect DT items shared between Root Port and Endpoint (PERST GPIO,
PHY info, clocks, resets, link speed, number of lanes, number of
iATU windows, interrupt info, etc) to snps,dw-pcie-common.yaml.
- Add dma-ranges support for Root Ports and Endpoints.
- Consolidate DT resource retrieval for "dbi", "dbi2", "atu", etc. to
reduce code duplication.
- Add generic names for clocks and resets to encourage more
consistent naming across drivers using DesignWare IP.
- Stop advertising PTM Responder role for Endpoints, which aren't
allowed to be responders.
TI J721E PCIe driver:
- Add j721s2 host mode ID to DT schema.
- Add interrupt properties to DT schema.
Toshiba Visconti PCIe controller driver:
- Fix interrupts array max constraints in DT schema"
* tag 'pci-v6.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (95 commits)
x86/PCI: Use pr_info() when possible
x86/PCI: Fix log message typo
x86/PCI: Tidy E820 removal messages
PCI: Skip allocate_resource() if too little space available
efi/x86: Remove EfiMemoryMappedIO from E820 map
PCI/portdrv: Allow AER service only for Root Ports & RCECs
PCI: xilinx-nwl: Fix coding style violations
PCI: mvebu: Switch to using gpiod API
PCI: pciehp: Enable Command Completed Interrupt only if supported
PCI: aardvark: Switch to using devm_gpiod_get_optional()
dt-bindings: PCI: mediatek-gen3: add support for mt7986
dt-bindings: PCI: mediatek-gen3: add SoC based clock config
dt-bindings: PCI: qcom: Allow 'dma-coherent' property
PCI: mt7621: Add sentinel to quirks table
PCI: vmd: Fix secondary bus reset for Intel bridges
PCI: endpoint: pci-epf-vntb: Fix sparse ntb->reg build warning
PCI: endpoint: pci-epf-vntb: Fix sparse build warning for epf_db
PCI: endpoint: pci-epf-vntb: Replace hardcoded 4 with sizeof(u32)
PCI: endpoint: pci-epf-vntb: Remove unused epf_db_phy struct member
PCI: endpoint: pci-epf-vntb: Fix call pci_epc_mem_free_addr() in error path
...
|
||
|
Linus Torvalds
|
e2ca6ba6ba |
MM patches for 6.2-rc1.
- More userfaultfs work from Peter Xu. - Several convert-to-folios series from Sidhartha Kumar and Huang Ying. - Some filemap cleanups from Vishal Moola. - David Hildenbrand added the ability to selftest anon memory COW handling. - Some cpuset simplifications from Liu Shixin. - Addition of vmalloc tracing support by Uladzislau Rezki. - Some pagecache folioifications and simplifications from Matthew Wilcox. - A pagemap cleanup from Kefeng Wang: we have VM_ACCESS_FLAGS, so use it. - Miguel Ojeda contributed some cleanups for our use of the __no_sanitize_thread__ gcc keyword. This series shold have been in the non-MM tree, my bad. - Naoya Horiguchi improved the interaction between memory poisoning and memory section removal for huge pages. - DAMON cleanups and tuneups from SeongJae Park - Tony Luck fixed the handling of COW faults against poisoned pages. - Peter Xu utilized the PTE marker code for handling swapin errors. - Hugh Dickins reworked compound page mapcount handling, simplifying it and making it more efficient. - Removal of the autonuma savedwrite infrastructure from Nadav Amit and David Hildenbrand. - zram support for multiple compression streams from Sergey Senozhatsky. - David Hildenbrand reworked the GUP code's R/O long-term pinning so that drivers no longer need to use the FOLL_FORCE workaround which didn't work very well anyway. - Mel Gorman altered the page allocator so that local IRQs can remnain enabled during per-cpu page allocations. - Vishal Moola removed the try_to_release_page() wrapper. - Stefan Roesch added some per-BDI sysfs tunables which are used to prevent network block devices from dirtying excessive amounts of pagecache. - David Hildenbrand did some cleanup and repair work on KSM COW breaking. - Nhat Pham and Johannes Weiner have implemented writeback in zswap's zsmalloc backend. - Brian Foster has fixed a longstanding corner-case oddity in file[map]_write_and_wait_range(). - sparse-vmemmap changes for MIPS, LoongArch and NIOS2 from Feiyang Chen. - Shiyang Ruan has done some work on fsdax, to make its reflink mode work better under xfstests. Better, but still not perfect. - Christoph Hellwig has removed the .writepage() method from several filesystems. They only need .writepages(). - Yosry Ahmed wrote a series which fixes the memcg reclaim target beancounting. - David Hildenbrand has fixed some of our MM selftests for 32-bit machines. - Many singleton patches, as usual. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCY5j6ZwAKCRDdBJ7gKXxA jkDYAP9qNeVqp9iuHjZNTqzMXkfmJPsw2kmy2P+VdzYVuQRcJgEAgoV9d7oMq4ml CodAgiA51qwzId3GRytIo/tfWZSezgA= =d19R -----END PGP SIGNATURE----- Merge tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: - More userfaultfs work from Peter Xu - Several convert-to-folios series from Sidhartha Kumar and Huang Ying - Some filemap cleanups from Vishal Moola - David Hildenbrand added the ability to selftest anon memory COW handling - Some cpuset simplifications from Liu Shixin - Addition of vmalloc tracing support by Uladzislau Rezki - Some pagecache folioifications and simplifications from Matthew Wilcox - A pagemap cleanup from Kefeng Wang: we have VM_ACCESS_FLAGS, so use it - Miguel Ojeda contributed some cleanups for our use of the __no_sanitize_thread__ gcc keyword. This series should have been in the non-MM tree, my bad - Naoya Horiguchi improved the interaction between memory poisoning and memory section removal for huge pages - DAMON cleanups and tuneups from SeongJae Park - Tony Luck fixed the handling of COW faults against poisoned pages - Peter Xu utilized the PTE marker code for handling swapin errors - Hugh Dickins reworked compound page mapcount handling, simplifying it and making it more efficient - Removal of the autonuma savedwrite infrastructure from Nadav Amit and David Hildenbrand - zram support for multiple compression streams from Sergey Senozhatsky - David Hildenbrand reworked the GUP code's R/O long-term pinning so that drivers no longer need to use the FOLL_FORCE workaround which didn't work very well anyway - Mel Gorman altered the page allocator so that local IRQs can remnain enabled during per-cpu page allocations - Vishal Moola removed the try_to_release_page() wrapper - Stefan Roesch added some per-BDI sysfs tunables which are used to prevent network block devices from dirtying excessive amounts of pagecache - David Hildenbrand did some cleanup and repair work on KSM COW breaking - Nhat Pham and Johannes Weiner have implemented writeback in zswap's zsmalloc backend - Brian Foster has fixed a longstanding corner-case oddity in file[map]_write_and_wait_range() - sparse-vmemmap changes for MIPS, LoongArch and NIOS2 from Feiyang Chen - Shiyang Ruan has done some work on fsdax, to make its reflink mode work better under xfstests. Better, but still not perfect - Christoph Hellwig has removed the .writepage() method from several filesystems. They only need .writepages() - Yosry Ahmed wrote a series which fixes the memcg reclaim target beancounting - David Hildenbrand has fixed some of our MM selftests for 32-bit machines - Many singleton patches, as usual * tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (313 commits) mm/hugetlb: set head flag before setting compound_order in __prep_compound_gigantic_folio mm: mmu_gather: allow more than one batch of delayed rmaps mm: fix typo in struct pglist_data code comment kmsan: fix memcpy tests mm: add cond_resched() in swapin_walk_pmd_entry() mm: do not show fs mm pc for VM_LOCKONFAULT pages selftests/vm: ksm_functional_tests: fixes for 32bit selftests/vm: cow: fix compile warning on 32bit selftests/vm: madv_populate: fix missing MADV_POPULATE_(READ|WRITE) definitions mm/gup_test: fix PIN_LONGTERM_TEST_READ with highmem mm,thp,rmap: fix races between updates of subpages_mapcount mm: memcg: fix swapcached stat accounting mm: add nodes= arg to memory.reclaim mm: disable top-tier fallback to reclaim on proactive reclaim selftests: cgroup: make sure reclaim target memcg is unprotected selftests: cgroup: refactor proactive reclaim code to reclaim_until() mm: memcg: fix stale protection of reclaim target memcg mm/mmap: properly unaccount memory on mas_preallocate() failure omfs: remove ->writepage jfs: remove ->writepage ... |
||
|
Linus Torvalds
|
7e68dd7d07 |
Networking changes for 6.2.
Core
----
- Allow live renaming when an interface is up
- Add retpoline wrappers for tc, improving considerably the
performances of complex queue discipline configurations.
- Add inet drop monitor support.
- A few GRO performance improvements.
- Add infrastructure for atomic dev stats, addressing long standing
data races.
- De-duplicate common code between OVS and conntrack offloading
infrastructure.
- A bunch of UBSAN_BOUNDS/FORTIFY_SOURCE improvements.
- Netfilter: introduce packet parser for tunneled packets
- Replace IPVS timer-based estimators with kthreads to scale up
the workload with the number of available CPUs.
- Add the helper support for connection-tracking OVS offload.
BPF
---
- Support for user defined BPF objects: the use case is to allocate
own objects, build own object hierarchies and use the building
blocks to build own data structures flexibly, for example, linked
lists in BPF.
- Make cgroup local storage available to non-cgroup attached BPF
programs.
- Avoid unnecessary deadlock detection and failures wrt BPF task
storage helpers.
- A relevant bunch of BPF verifier fixes and improvements.
- Veristat tool improvements to support custom filtering, sorting,
and replay of results.
- Add LLVM disassembler as default library for dumping JITed code.
- Lots of new BPF documentation for various BPF maps.
- Add bpf_rcu_read_{,un}lock() support for sleepable programs.
- Add RCU grace period chaining to BPF to wait for the completion
of access from both sleepable and non-sleepable BPF programs.
- Add support storing struct task_struct objects as kptrs in maps.
- Improve helper UAPI by explicitly defining BPF_FUNC_xxx integer
values.
- Add libbpf *_opts API-variants for bpf_*_get_fd_by_id() functions.
Protocols
---------
- TCP: implement Protective Load Balancing across switch links.
- TCP: allow dynamically disabling TCP-MD5 static key, reverting
back to fast[er]-path.
- UDP: Introduce optional per-netns hash lookup table.
- IPv6: simplify and cleanup sockets disposal.
- Netlink: support different type policies for each generic
netlink operation.
- MPTCP: add MSG_FASTOPEN and FastOpen listener side support.
- MPTCP: add netlink notification support for listener sockets
events.
- SCTP: add VRF support, allowing sctp sockets binding to VRF
devices.
- Add bridging MAC Authentication Bypass (MAB) support.
- Extensions for Ethernet VPN bridging implementation to better
support multicast scenarios.
- More work for Wi-Fi 7 support, comprising conversion of all
the existing drivers to internal TX queue usage.
- IPSec: introduce a new offload type (packet offload) allowing
complete header processing and crypto offloading.
- IPSec: extended ack support for more descriptive XFRM error
reporting.
- RXRPC: increase SACK table size and move processing into a
per-local endpoint kernel thread, reducing considerably the
required locking.
- IEEE 802154: synchronous send frame and extended filtering
support, initial support for scanning available 15.4 networks.
- Tun: bump the link speed from 10Mbps to 10Gbps.
- Tun/VirtioNet: implement UDP segmentation offload support.
Driver API
----------
- PHY/SFP: improve power level switching between standard
level 1 and the higher power levels.
- New API for netdev <-> devlink_port linkage.
- PTP: convert existing drivers to new frequency adjustment
implementation.
- DSA: add support for rx offloading.
- Autoload DSA tagging driver when dynamically changing protocol.
- Add new PCP and APPTRUST attributes to Data Center Bridging.
- Add configuration support for 800Gbps link speed.
- Add devlink port function attribute to enable/disable RoCE and
migratable.
- Extend devlink-rate to support strict prioriry and weighted fair
queuing.
- Add devlink support to directly reading from region memory.
- New device tree helper to fetch MAC address from nvmem.
- New big TCP helper to simplify temporary header stripping.
New hardware / drivers
----------------------
- Ethernet:
- Marvel Octeon CNF95N and CN10KB Ethernet Switches.
- Marvel Prestera AC5X Ethernet Switch.
- WangXun 10 Gigabit NIC.
- Motorcomm yt8521 Gigabit Ethernet.
- Microchip ksz9563 Gigabit Ethernet Switch.
- Microsoft Azure Network Adapter.
- Linux Automation 10Base-T1L adapter.
- PHY:
- Aquantia AQR112 and AQR412.
- Motorcomm YT8531S.
- PTP:
- Orolia ART-CARD.
- WiFi:
- MediaTek Wi-Fi 7 (802.11be) devices.
- RealTek rtw8821cu, rtw8822bu, rtw8822cu and rtw8723du USB
devices.
- Bluetooth:
- Broadcom BCM4377/4378/4387 Bluetooth chipsets.
- Realtek RTL8852BE and RTL8723DS.
- Cypress.CYW4373A0 WiFi + Bluetooth combo device.
Drivers
-------
- CAN:
- gs_usb: bus error reporting support.
- kvaser_usb: listen only and bus error reporting support.
- Ethernet NICs:
- Intel (100G):
- extend action skbedit to RX queue mapping.
- implement devlink-rate support.
- support direct read from memory.
- nVidia/Mellanox (mlx5):
- SW steering improvements, increasing rules update rate.
- Support for enhanced events compression.
- extend H/W offload packet manipulation capabilities.
- implement IPSec packet offload mode.
- nVidia/Mellanox (mlx4):
- better big TCP support.
- Netronome Ethernet NICs (nfp):
- IPsec offload support.
- add support for multicast filter.
- Broadcom:
- RSS and PTP support improvements.
- AMD/SolarFlare:
- netlink extened ack improvements.
- add basic flower matches to offload, and related stats.
- Virtual NICs:
- ibmvnic: introduce affinity hint support.
- small / embedded:
- FreeScale fec: add initial XDP support.
- Marvel mv643xx_eth: support MII/GMII/RGMII modes for Kirkwood.
- TI am65-cpsw: add suspend/resume support.
- Mediatek MT7986: add RX wireless wthernet dispatch support.
- Realtek 8169: enable GRO software interrupt coalescing per
default.
- Ethernet high-speed switches:
- Microchip (sparx5):
- add support for Sparx5 TC/flower H/W offload via VCAP.
- Mellanox mlxsw:
- add 802.1X and MAC Authentication Bypass offload support.
- add ip6gre support.
- Embedded Ethernet switches:
- Mediatek (mtk_eth_soc):
- improve PCS implementation, add DSA untag support.
- enable flow offload support.
- Renesas:
- add rswitch R-Car Gen4 gPTP support.
- Microchip (lan966x):
- add full XDP support.
- add TC H/W offload via VCAP.
- enable PTP on bridge interfaces.
- Microchip (ksz8):
- add MTU support for KSZ8 series.
- Qualcomm 802.11ax WiFi (ath11k):
- support configuring channel dwell time during scan.
- MediaTek WiFi (mt76):
- enable Wireless Ethernet Dispatch (WED) offload support.
- add ack signal support.
- enable coredump support.
- remain_on_channel support.
- Intel WiFi (iwlwifi):
- enable Wi-Fi 7 Extremely High Throughput (EHT) PHY capabilities.
- 320 MHz channels support.
- RealTek WiFi (rtw89):
- new dynamic header firmware format support.
- wake-over-WLAN support.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni:
"Core:
- Allow live renaming when an interface is up
- Add retpoline wrappers for tc, improving considerably the
performances of complex queue discipline configurations
- Add inet drop monitor support
- A few GRO performance improvements
- Add infrastructure for atomic dev stats, addressing long standing
data races
- De-duplicate common code between OVS and conntrack offloading
infrastructure
- A bunch of UBSAN_BOUNDS/FORTIFY_SOURCE improvements
- Netfilter: introduce packet parser for tunneled packets
- Replace IPVS timer-based estimators with kthreads to scale up the
workload with the number of available CPUs
- Add the helper support for connection-tracking OVS offload
BPF:
- Support for user defined BPF objects: the use case is to allocate
own objects, build own object hierarchies and use the building
blocks to build own data structures flexibly, for example, linked
lists in BPF
- Make cgroup local storage available to non-cgroup attached BPF
programs
- Avoid unnecessary deadlock detection and failures wrt BPF task
storage helpers
- A relevant bunch of BPF verifier fixes and improvements
- Veristat tool improvements to support custom filtering, sorting,
and replay of results
- Add LLVM disassembler as default library for dumping JITed code
- Lots of new BPF documentation for various BPF maps
- Add bpf_rcu_read_{,un}lock() support for sleepable programs
- Add RCU grace period chaining to BPF to wait for the completion of
access from both sleepable and non-sleepable BPF programs
- Add support storing struct task_struct objects as kptrs in maps
- Improve helper UAPI by explicitly defining BPF_FUNC_xxx integer
values
- Add libbpf *_opts API-variants for bpf_*_get_fd_by_id() functions
Protocols:
- TCP: implement Protective Load Balancing across switch links
- TCP: allow dynamically disabling TCP-MD5 static key, reverting back
to fast[er]-path
- UDP: Introduce optional per-netns hash lookup table
- IPv6: simplify and cleanup sockets disposal
- Netlink: support different type policies for each generic netlink
operation
- MPTCP: add MSG_FASTOPEN and FastOpen listener side support
- MPTCP: add netlink notification support for listener sockets events
- SCTP: add VRF support, allowing sctp sockets binding to VRF devices
- Add bridging MAC Authentication Bypass (MAB) support
- Extensions for Ethernet VPN bridging implementation to better
support multicast scenarios
- More work for Wi-Fi 7 support, comprising conversion of all the
existing drivers to internal TX queue usage
- IPSec: introduce a new offload type (packet offload) allowing
complete header processing and crypto offloading
- IPSec: extended ack support for more descriptive XFRM error
reporting
- RXRPC: increase SACK table size and move processing into a
per-local endpoint kernel thread, reducing considerably the
required locking
- IEEE 802154: synchronous send frame and extended filtering support,
initial support for scanning available 15.4 networks
- Tun: bump the link speed from 10Mbps to 10Gbps
- Tun/VirtioNet: implement UDP segmentation offload support
Driver API:
- PHY/SFP: improve power level switching between standard level 1 and
the higher power levels
- New API for netdev <-> devlink_port linkage
- PTP: convert existing drivers to new frequency adjustment
implementation
- DSA: add support for rx offloading
- Autoload DSA tagging driver when dynamically changing protocol
- Add new PCP and APPTRUST attributes to Data Center Bridging
- Add configuration support for 800Gbps link speed
- Add devlink port function attribute to enable/disable RoCE and
migratable
- Extend devlink-rate to support strict prioriry and weighted fair
queuing
- Add devlink support to directly reading from region memory
- New device tree helper to fetch MAC address from nvmem
- New big TCP helper to simplify temporary header stripping
New hardware / drivers:
- Ethernet:
- Marvel Octeon CNF95N and CN10KB Ethernet Switches
- Marvel Prestera AC5X Ethernet Switch
- WangXun 10 Gigabit NIC
- Motorcomm yt8521 Gigabit Ethernet
- Microchip ksz9563 Gigabit Ethernet Switch
- Microsoft Azure Network Adapter
- Linux Automation 10Base-T1L adapter
- PHY:
- Aquantia AQR112 and AQR412
- Motorcomm YT8531S
- PTP:
- Orolia ART-CARD
- WiFi:
- MediaTek Wi-Fi 7 (802.11be) devices
- RealTek rtw8821cu, rtw8822bu, rtw8822cu and rtw8723du USB
devices
- Bluetooth:
- Broadcom BCM4377/4378/4387 Bluetooth chipsets
- Realtek RTL8852BE and RTL8723DS
- Cypress.CYW4373A0 WiFi + Bluetooth combo device
Drivers:
- CAN:
- gs_usb: bus error reporting support
- kvaser_usb: listen only and bus error reporting support
- Ethernet NICs:
- Intel (100G):
- extend action skbedit to RX queue mapping
- implement devlink-rate support
- support direct read from memory
- nVidia/Mellanox (mlx5):
- SW steering improvements, increasing rules update rate
- Support for enhanced events compression
- extend H/W offload packet manipulation capabilities
- implement IPSec packet offload mode
- nVidia/Mellanox (mlx4):
- better big TCP support
- Netronome Ethernet NICs (nfp):
- IPsec offload support
- add support for multicast filter
- Broadcom:
- RSS and PTP support improvements
- AMD/SolarFlare:
- netlink extened ack improvements
- add basic flower matches to offload, and related stats
- Virtual NICs:
- ibmvnic: introduce affinity hint support
- small / embedded:
- FreeScale fec: add initial XDP support
- Marvel mv643xx_eth: support MII/GMII/RGMII modes for Kirkwood
- TI am65-cpsw: add suspend/resume support
- Mediatek MT7986: add RX wireless wthernet dispatch support
- Realtek 8169: enable GRO software interrupt coalescing per
default
- Ethernet high-speed switches:
- Microchip (sparx5):
- add support for Sparx5 TC/flower H/W offload via VCAP
- Mellanox mlxsw:
- add 802.1X and MAC Authentication Bypass offload support
- add ip6gre support
- Embedded Ethernet switches:
- Mediatek (mtk_eth_soc):
- improve PCS implementation, add DSA untag support
- enable flow offload support
- Renesas:
- add rswitch R-Car Gen4 gPTP support
- Microchip (lan966x):
- add full XDP support
- add TC H/W offload via VCAP
- enable PTP on bridge interfaces
- Microchip (ksz8):
- add MTU support for KSZ8 series
- Qualcomm 802.11ax WiFi (ath11k):
- support configuring channel dwell time during scan
- MediaTek WiFi (mt76):
- enable Wireless Ethernet Dispatch (WED) offload support
- add ack signal support
- enable coredump support
- remain_on_channel support
- Intel WiFi (iwlwifi):
- enable Wi-Fi 7 Extremely High Throughput (EHT) PHY capabilities
- 320 MHz channels support
- RealTek WiFi (rtw89):
- new dynamic header firmware format support
- wake-over-WLAN support"
* tag 'net-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2002 commits)
ipvs: fix type warning in do_div() on 32 bit
net: lan966x: Remove a useless test in lan966x_ptp_add_trap()
net: ipa: add IPA v4.7 support
dt-bindings: net: qcom,ipa: Add SM6350 compatible
bnxt: Use generic HBH removal helper in tx path
IPv6/GRO: generic helper to remove temporary HBH/jumbo header in driver
selftests: forwarding: Add bridge MDB test
selftests: forwarding: Rename bridge_mdb test
bridge: mcast: Support replacement of MDB port group entries
bridge: mcast: Allow user space to specify MDB entry routing protocol
bridge: mcast: Allow user space to add (*, G) with a source list and filter mode
bridge: mcast: Add support for (*, G) with a source list and filter mode
bridge: mcast: Avoid arming group timer when (S, G) corresponds to a source
bridge: mcast: Add a flag for user installed source entries
bridge: mcast: Expose __br_multicast_del_group_src()
bridge: mcast: Expose br_multicast_new_group_src()
bridge: mcast: Add a centralized error path
bridge: mcast: Place netlink policy before validation functions
bridge: mcast: Split (*, G) and (S, G) addition into different functions
bridge: mcast: Do not derive entry type from its filter mode
...
|
||
|
Linus Torvalds
|
82c72902c5 |
- Simplify paravirt patching machinery by removing the now unused
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||
|
Linus Torvalds
|
a70210f415 |
- Add support for multiple testing sequences to the Intel In-Field Scan
driver in order to be able to run multiple different test patterns.
Rework things and remove the BROKEN dependency so that the driver can be
enabled (Jithu Joseph)
- Remove the subsys interface usage in the microcode loader because it
is not really needed
- A couple of smaller fixes and cleanups
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Merge tag 'x86_microcode_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 microcode and IFS updates from Borislav Petkov:
"The IFS (In-Field Scan) stuff goes through tip because the IFS driver
uses the same structures and similar functionality as the microcode
loader and it made sense to route it all through this branch so that
there are no conflicts.
- Add support for multiple testing sequences to the Intel In-Field
Scan driver in order to be able to run multiple different test
patterns. Rework things and remove the BROKEN dependency so that
the driver can be enabled (Jithu Joseph)
- Remove the subsys interface usage in the microcode loader because
it is not really needed
- A couple of smaller fixes and cleanups"
* tag 'x86_microcode_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
x86/microcode/intel: Do not retry microcode reloading on the APs
x86/microcode/intel: Do not print microcode revision and processor flags
platform/x86/intel/ifs: Add missing kernel-doc entry
Revert "platform/x86/intel/ifs: Mark as BROKEN"
Documentation/ABI: Update IFS ABI doc
platform/x86/intel/ifs: Add current_batch sysfs entry
platform/x86/intel/ifs: Remove reload sysfs entry
platform/x86/intel/ifs: Add metadata validation
platform/x86/intel/ifs: Use generic microcode headers and functions
platform/x86/intel/ifs: Add metadata support
x86/microcode/intel: Use a reserved field for metasize
x86/microcode/intel: Add hdr_type to intel_microcode_sanity_check()
x86/microcode/intel: Reuse microcode_sanity_check()
x86/microcode/intel: Use appropriate type in microcode_sanity_check()
x86/microcode/intel: Reuse find_matching_signature()
platform/x86/intel/ifs: Remove memory allocation from load path
platform/x86/intel/ifs: Remove image loading during init
platform/x86/intel/ifs: Return a more appropriate error code
platform/x86/intel/ifs: Remove unused selection
x86/microcode: Drop struct ucode_cpu_info.valid
...
|
||
|
Linus Torvalds
|
3ef3ace4e2 |
- Split MTRR and PAT init code to accomodate at least Xen PV and TDX
guests which do not get MTRRs exposed but only PAT. (TDX guests do not support the cache disabling dance when setting up MTRRs so they fall under the same category.) This is a cleanup work to remove all the ugly workarounds for such guests and init things separately (Juergen Gross) - Add two new Intel CPUs to the list of CPUs with "normal" Energy Performance Bias, leading to power savings - Do not do bus master arbitration in C3 (ARB_DISABLE) on modern Centaur CPUs -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmOYhIMACgkQEsHwGGHe VUpxug//ZKw3hYFroKhsULJi/e0j2nGARiSlJrJcFHl2vgh9yGvDsnYUyM/rgjgt cM3uCLbEG7nA6uhB3nupzaXZ8lBM1nU9kiEl/kjQ5oYf9nmJ48fLttvWGfxYN4s3 kj5fYVhlOZpntQXIWrwxnPqghUysumMnZmBJeKYiYNNfkj62l3xU2Ni4Gnjnp02I 9MmUhl7pj1aEyOQfM8rovy+wtYCg5WTOmXVlyVN+b9MwfYeK+stojvCZHxtJs9BD fezpJjjG+78xKUC7vVZXCh1p1N5Qvj014XJkVl9Hg0n7qizKFZRtqi8I769G2ptd exP8c2nDXKCqYzE8vK6ukWgDANQPs3d6Z7EqUKuXOCBF81PnMPSUMyNtQFGNM6Wp S5YSvFfCgUjp50IunOpvkDABgpM+PB8qeWUq72UFQJSOymzRJg/KXtE2X+qaMwtC 0i6VLXfMddGcmqNKDppfGtCjq2W5VrNIIJedtAQQGyl+pl3XzZeNomhJpm/0mVfJ 8UrlXZeXl/EUQ7qk40gC/Ash27pU9ZDx4CMNMy1jDIQqgufBjEoRIDSFqQlghmZq An5/BqMLhOMxUYNA7bRUnyeyxCBypetMdQt5ikBmVXebvBDmArXcuSNAdiy1uBFX KD8P3Y1AnsHIklxkLNyZRUy7fb4mgMFenUbgc0vmbYHbFl0C0pQ= =Zmgh -----END PGP SIGNATURE----- Merge tag 'x86_cpu_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cpu updates from Borislav Petkov: - Split MTRR and PAT init code to accomodate at least Xen PV and TDX guests which do not get MTRRs exposed but only PAT. (TDX guests do not support the cache disabling dance when setting up MTRRs so they fall under the same category) This is a cleanup work to remove all the ugly workarounds for such guests and init things separately (Juergen Gross) - Add two new Intel CPUs to the list of CPUs with "normal" Energy Performance Bias, leading to power savings - Do not do bus master arbitration in C3 (ARB_DISABLE) on modern Centaur CPUs * tag 'x86_cpu_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits) x86/mtrr: Make message for disabled MTRRs more descriptive x86/pat: Handle TDX guest PAT initialization x86/cpuid: Carve out all CPUID functionality x86/cpu: Switch to cpu_feature_enabled() for X86_FEATURE_XENPV x86/cpu: Remove X86_FEATURE_XENPV usage in setup_cpu_entry_area() x86/cpu: Drop 32-bit Xen PV guest code in update_task_stack() x86/cpu: Remove unneeded 64-bit dependency in arch_enter_from_user_mode() x86/cpufeatures: Add X86_FEATURE_XENPV to disabled-features.h x86/acpi/cstate: Optimize ARB_DISABLE on Centaur CPUs x86/mtrr: Simplify mtrr_ops initialization x86/cacheinfo: Switch cache_ap_init() to hotplug callback x86: Decouple PAT and MTRR handling x86/mtrr: Add a stop_machine() handler calling only cache_cpu_init() x86/mtrr: Let cache_aps_delayed_init replace mtrr_aps_delayed_init x86/mtrr: Get rid of __mtrr_enabled bool x86/mtrr: Simplify mtrr_bp_init() x86/mtrr: Remove set_all callback from struct mtrr_ops x86/mtrr: Disentangle MTRR init from PAT init x86/mtrr: Move cache control code to cacheinfo.c x86/mtrr: Split MTRR-specific handling from cache dis/enabling ... |
||
|
Linus Torvalds
|
4eb77fa102 |
- Do some spring cleaning to the compressed boot code by moving the
EFI mixed-mode code to a separate compilation unit, the AMD memory
encryption early code where it belongs and fixing up build dependencies.
Make the deprecated EFI handover protocol optional with the goal of
removing it at some point (Ard Biesheuvel)
- Skip realmode init code on Xen PV guests as it is not needed there
- Remove an old 32-bit PIC code compiler workaround
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Merge tag 'x86_boot_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 boot updates from Borislav Petkov:
"A of early boot cleanups and fixes.
- Do some spring cleaning to the compressed boot code by moving the
EFI mixed-mode code to a separate compilation unit, the AMD memory
encryption early code where it belongs and fixing up build
dependencies. Make the deprecated EFI handover protocol optional
with the goal of removing it at some point (Ard Biesheuvel)
- Skip realmode init code on Xen PV guests as it is not needed there
- Remove an old 32-bit PIC code compiler workaround"
* tag 'x86_boot_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Remove x86_32 PIC using %ebx workaround
x86/boot: Skip realmode init code when running as Xen PV guest
x86/efi: Make the deprecated EFI handover protocol optional
x86/boot/compressed: Only build mem_encrypt.S if AMD_MEM_ENCRYPT=y
x86/boot/compressed: Adhere to calling convention in get_sev_encryption_bit()
x86/boot/compressed: Move startup32_check_sev_cbit() out of head_64.S
x86/boot/compressed: Move startup32_check_sev_cbit() into .text
x86/boot/compressed: Move startup32_load_idt() out of head_64.S
x86/boot/compressed: Move startup32_load_idt() into .text section
x86/boot/compressed: Pull global variable reference into startup32_load_idt()
x86/boot/compressed: Avoid touching ECX in startup32_set_idt_entry()
x86/boot/compressed: Simplify IDT/GDT preserve/restore in the EFI thunk
x86/boot/compressed, efi: Merge multiple definitions of image_offset into one
x86/boot/compressed: Move efi32_pe_entry() out of head_64.S
x86/boot/compressed: Move efi32_entry out of head_64.S
x86/boot/compressed: Move efi32_pe_entry into .text section
x86/boot/compressed: Move bootargs parsing out of 32-bit startup code
x86/boot/compressed: Move 32-bit entrypoint code into .text section
x86/boot/compressed: Rename efi_thunk_64.S to efi-mixed.S
|
||
|
Linus Torvalds
|
8b9ed79c2d |
- Move the 32-bit memmove() asm implementation out-of-line in order to
fix a 32-bit full LTO build failure with clang where it would fail at register allocation. Move it to an asm file and clean it up while at it, similar to what has been already done on 64-bit -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmOYYQMACgkQEsHwGGHe VUqs3xAAvc1nsW0FiR3DWE7+k9jti8OwDMRt51n/zX9wjVrYeJM/6pLNqu+rBnLQ A18dhRMVm2QKcxh06bcth/B1V0zvYUMRaOrucjAMkBQ/XAVsEEt3ZSgklj7rYm1S phG+YhzxJWP9KdmiN29kfBj6kS9QdYYHQyca1KWxTlggWSIwlCvIzQ8k9ip8s/5W 9fxiU/P9KA8a4aEkzeQ+waytylus8Swbl19zjnmfHswCi+l2ekS9PfXDE190ec01 ePSLn2dX1bbPCIIvKD7z6gWR7BOJLpVTv2ftg4XzcozZ7ebBaaQxXczhTvUPOtG0 NOuYTz4hI+AcG5QZU8JgGbDXqS//NLIklwydfXgS1fNiwudmO62Y734mL8MV0aw7 FVy7zTXamHb0D10ES0e9tL5GLSTYs0NZ6/193PNERUEdUWj/Ix9FPbuw53DYs3gh 7BkZPRsrOJYmAtTG5fg44SMyG2MHsfsU7+3Xl0nHUKihgdZi7YdmuhLqXnhczCwe HvQFgUF3d5oRjcApYLJKHP88XnPH7o5ogIRXL1WEiZ0+SgChAzckKdVjjYrd3FLq ppnr7uZQCJaT4YoL+zqcQEQD0ukC4BfhlxmXj1IuSlpqnIXOf+JD0WOF3/twErLm g8PE+PYkm+am6TAFDDU/45/DqpEJ+vCD1SJNfRtDeS4piFV0OzQ= =hby2 -----END PGP SIGNATURE----- Merge tag 'x86_asm_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 asm updates from Borislav Petkov: - Move the 32-bit memmove() asm implementation out-of-line in order to fix a 32-bit full LTO build failure with clang where it would fail at register allocation. Move it to an asm file and clean it up while at it, similar to what has been already done on 64-bit * tag 'x86_asm_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mem: Move memmove to out of line assembler |
||
|
Linus Torvalds
|
fc4c9f4504 |
EFI updates for v6.2:
- Refactor the zboot code so that it incorporates all the EFI stub
logic, rather than calling the decompressed kernel as a EFI app.
- Add support for initrd= command line option to x86 mixed mode.
- Allow initrd= to be used with arbitrary EFI accessible file systems
instead of just the one the kernel itself was loaded from.
- Move some x86-only handling and manipulation of the EFI memory map
into arch/x86, as it is not used anywhere else.
- More flexible handling of any random seeds provided by the boot
environment (i.e., systemd-boot) so that it becomes available much
earlier during the boot.
- Allow improved arch-agnostic EFI support in loaders, by setting a
uniform baseline of supported features, and adding a generic magic
number to the DOS/PE header. This should allow loaders such as GRUB or
systemd-boot to reduce the amount of arch-specific handling
substantially.
- (arm64) Run EFI runtime services from a dedicated stack, and use it to
recover from synchronous exceptions that might occur in the firmware
code.
- (arm64) Ensure that we don't allocate memory outside of the 48-bit
addressable physical range.
- Make EFI pstore record size configurable
- Add support for decoding CXL specific CPER records
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Merge tag 'efi-next-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI updates from Ard Biesheuvel:
"Another fairly sizable pull request, by EFI subsystem standards.
Most of the work was done by me, some of it in collaboration with the
distro and bootloader folks (GRUB, systemd-boot), where the main focus
has been on removing pointless per-arch differences in the way EFI
boots a Linux kernel.
- Refactor the zboot code so that it incorporates all the EFI stub
logic, rather than calling the decompressed kernel as a EFI app.
- Add support for initrd= command line option to x86 mixed mode.
- Allow initrd= to be used with arbitrary EFI accessible file systems
instead of just the one the kernel itself was loaded from.
- Move some x86-only handling and manipulation of the EFI memory map
into arch/x86, as it is not used anywhere else.
- More flexible handling of any random seeds provided by the boot
environment (i.e., systemd-boot) so that it becomes available much
earlier during the boot.
- Allow improved arch-agnostic EFI support in loaders, by setting a
uniform baseline of supported features, and adding a generic magic
number to the DOS/PE header. This should allow loaders such as GRUB
or systemd-boot to reduce the amount of arch-specific handling
substantially.
- (arm64) Run EFI runtime services from a dedicated stack, and use it
to recover from synchronous exceptions that might occur in the
firmware code.
- (arm64) Ensure that we don't allocate memory outside of the 48-bit
addressable physical range.
- Make EFI pstore record size configurable
- Add support for decoding CXL specific CPER records"
* tag 'efi-next-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: (43 commits)
arm64: efi: Recover from synchronous exceptions occurring in firmware
arm64: efi: Execute runtime services from a dedicated stack
arm64: efi: Limit allocations to 48-bit addressable physical region
efi: Put Linux specific magic number in the DOS header
efi: libstub: Always enable initrd command line loader and bump version
efi: stub: use random seed from EFI variable
efi: vars: prohibit reading random seed variables
efi: random: combine bootloader provided RNG seed with RNG protocol output
efi/cper, cxl: Decode CXL Error Log
efi/cper, cxl: Decode CXL Protocol Error Section
efi: libstub: fix efi_load_initrd_dev_path() kernel-doc comment
efi: x86: Move EFI runtime map sysfs code to arch/x86
efi: runtime-maps: Clarify purpose and enable by default for kexec
efi: pstore: Add module parameter for setting the record size
efi: xen: Set EFI_PARAVIRT for Xen dom0 boot on all architectures
efi: memmap: Move manipulation routines into x86 arch tree
efi: memmap: Move EFI fake memmap support into x86 arch tree
efi: libstub: Undeprecate the command line initrd loader
efi: libstub: Add mixed mode support to command line initrd loader
efi: libstub: Permit mixed mode return types other than efi_status_t
...
|
||
Masahiro Yamada
|
fccb3d3eda |
kbuild: add test-{ge,gt,le,lt} macros
GNU Make 4.4 introduced $(intcmp ...), which is useful to compare two
integers without forking a new process.
Add test-{ge,gt,le,lt} macros, which work more efficiently with GNU
Make >= 4.4. For older Make versions, they fall back to the 'test'
shell command.
The first two parameters to $(intcmp ...) must not be empty. To avoid
the syntax error, I appended '0' to them. Fortunately, '00' is treated
as '0'. This is needed because CONFIG options may expand to an empty
string when the kernel configuration is not included.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com> # RISC-V
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
|
||
|
Linus Torvalds
|
75f4d9af8b |
iov_iter work; most of that is about getting rid of
direction misannotations and (hopefully) preventing
more of the same for the future.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull iov_iter updates from Al Viro:
"iov_iter work; most of that is about getting rid of direction
misannotations and (hopefully) preventing more of the same for the
future"
* tag 'pull-iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
use less confusing names for iov_iter direction initializers
iov_iter: saner checks for attempt to copy to/from iterator
[xen] fix "direction" argument of iov_iter_kvec()
[vhost] fix 'direction' argument of iov_iter_{init,bvec}()
[target] fix iov_iter_bvec() "direction" argument
[s390] memcpy_real(): WRITE is "data source", not destination...
[s390] zcore: WRITE is "data source", not destination...
[infiniband] READ is "data destination", not source...
[fsi] WRITE is "data source", not destination...
[s390] copy_oldmem_kernel() - WRITE is "data source", not destination
csum_and_copy_to_iter(): handle ITER_DISCARD
get rid of unlikely() on page_copy_sane() calls
|