883f616530
1001 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Dave Young
|
af16489848 |
x86/efi: Update e820 with reserved EFI boot services data to fix kexec breakage
Michael Weiser reported that he got this error during a kexec rebooting: esrt: Unsupported ESRT version 2904149718861218184. The ESRT memory stays in EFI boot services data, and it was reserved in kernel via efi_mem_reserve(). The initial purpose of the reservation is to reuse the EFI boot services data across kexec reboot. For example the BGRT image data and some ESRT memory like Michael reported. But although the memory is reserved it is not updated in the X86 E820 table, and kexec_file_load() iterates system RAM in the IO resource list to find places for kernel, initramfs and other stuff. In Michael's case the kexec loaded initramfs overwrote the ESRT memory and then the failure happened. Since kexec_file_load() depends on the E820 table being updated, just fix this by updating the reserved EFI boot services memory as reserved type in E820. Originally any memory descriptors with EFI_MEMORY_RUNTIME attribute are bypassed in the reservation code path because they are assumed as reserved. But the reservation is still needed for multiple kexec reboots, and it is the only possible case we come here thus just drop the code chunk, then everything works without side effects. On my machine the ESRT memory sits in an EFI runtime data range, it does not trigger the problem, but I successfully tested with BGRT instead. both kexec_load() and kexec_file_load() work and kdump works as well. [ mingo: Edited the changelog. ] Reported-by: Michael Weiser <michael@weiser.dinsnail.net> Tested-by: Michael Weiser <michael@weiser.dinsnail.net> Signed-off-by: Dave Young <dyoung@redhat.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: kexec@lists.infradead.org Cc: linux-efi@vger.kernel.org Link: https://lkml.kernel.org/r/20191204075233.GA10520@dhcp-128-65.nay.redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
||
Linus Torvalds
|
37323918ca |
- Core Frameworks
- Add support for a "resource managed strongly uncachable ioremap" call
- Provide a collection of MFD helper macros
- Remove mfd_clone_cell() from MFD core
- Add NULL de-reference protection in MFD core
- Remove superfluous function fd_platform_add_cell() from MFD core
- Honour Device Tree's request to disable a device
- New Drivers
- Add support for MediaTek MT6323 PMIC
- New Device Support
- Add support for Gemini Lake to Intel LPSS PCI
- Add support for Cherry Trail Crystal Cover PMIC to Intel SoC PMIC CRC
- Add support for PM{I}8950 to Qualcomm SPMI PMIC
- Add support for U8420 to ST-Ericsson DB8500
- Add support for Comet Lake PCH-H to Intel LPSS PCI
- New Functionality
- Add support for requested supply clocks; madera-core
- Fix-ups
- Lower interrupt priority; rk808
- Use provided helpers (macros, group functions, defines); rk808,
ipaq-micro, ab8500-core, db8500-prcmu, mt6397-core, cs5535-mfd
- Only allocate IRQs on request; max77620
- Use simplified API; arizona-core
- Remove redundant and/or duplicated code; wm8998-tables, arizona, syscon
- Device Tree binding fix-ups; madera, max77650, max77693
- Remove mfd_cell->id abuse hack; cs5535-mfd
- Remove only user of mfd_clone_cell(); cs5535-mfd
- Make resources static; rohm-bd70528
- Bug Fixes
- Fix product ID for RK818; rk808
- Fix Power Key; rk808
- Fix booting on the BananaPi; mt6397-core
- Endian fix-ups; twl.h
- Fix static error checker warnings; ti_am335x_tscadc
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Merge tag 'mfd-next-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"Core Frameworks:
- Add support for a "resource managed strongly uncachable ioremap"
call
- Provide a collection of MFD helper macros
- Remove mfd_clone_cell() from MFD core
- Add NULL de-reference protection in MFD core
- Remove superfluous function fd_platform_add_cell() from MFD core
- Honour Device Tree's request to disable a device
New Drivers:
- Add support for MediaTek MT6323 PMIC
New Device Support:
- Add support for Gemini Lake to Intel LPSS PCI
- Add support for Cherry Trail Crystal Cover PMIC to Intel SoC PMIC
CRC
- Add support for PM{I}8950 to Qualcomm SPMI PMIC
- Add support for U8420 to ST-Ericsson DB8500
- Add support for Comet Lake PCH-H to Intel LPSS PCI
New Functionality:
- Add support for requested supply clocks; madera-core
Fix-ups:
- Lower interrupt priority; rk808
- Use provided helpers (macros, group functions, defines); rk808,
ipaq-micro, ab8500-core, db8500-prcmu, mt6397-core, cs5535-mfd
- Only allocate IRQs on request; max77620
- Use simplified API; arizona-core
- Remove redundant and/or duplicated code; wm8998-tables, arizona,
syscon
- Device Tree binding fix-ups; madera, max77650, max77693
- Remove mfd_cell->id abuse hack; cs5535-mfd
- Remove only user of mfd_clone_cell(); cs5535-mfd
- Make resources static; rohm-bd70528
Bug Fixes:
- Fix product ID for RK818; rk808
- Fix Power Key; rk808
- Fix booting on the BananaPi; mt6397-core
- Endian fix-ups; twl.h
- Fix static error checker warnings; ti_am335x_tscadc"
* tag 'mfd-next-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (47 commits)
Revert "mfd: syscon: Set name of regmap_config"
mfd: ti_am335x_tscadc: Fix static checker warning
mfd: bd70528: Staticize bit value definitions
mfd: mfd-core: Honour Device Tree's request to disable a child-device
dt-bindings: mfd: max77693: Fix missing curly brace
mfd: intel-lpss: Add Intel Comet Lake PCH-H PCI IDs
mfd: db8500-prcmu: Support U8420-sysclk firmware
dt-bindings: mfd: max77650: Convert the binding document to yaml
mfd: mfd-core: Move pdev->mfd_cell creation back into mfd_add_device()
mfd: mfd-core: Remove usage counting for .{en,dis}able() call-backs
x86: olpc-xo1-sci: Remove invocation of MFD's .enable()/.disable() call-backs
x86: olpc-xo1-pm: Remove invocation of MFD's .enable()/.disable() call-backs
mfd: mfd-core: Remove mfd_clone_cell()
mfd: mfd-core: Protect against NULL call-back function pointer
mfd: cs5535-mfd: Register clients using their own dedicated MFD cell entries
mfd: cs5535-mfd: Request shared IO regions centrally
mfd: cs5535-mfd: Remove mfd_cell->id hack
mfd: cs5535-mfd: Use PLATFORM_DEVID_* defines and tidy error message
mfd: intel_soc_pmic_crc: Add "cht_crystal_cove_pmic" cell to CHT cells
mfd: madera: Add support for requesting the supply clocks
...
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Linus Torvalds
|
6e9f879684 |
ACPI updates for 5.5-rc1
- Update the ACPICA code in the kernel to upstream revision 20191018
including:
* Fixes for Clang warnings (Bob Moore).
* Fix for possible overflow in get_tick_count() (Bob Moore).
* Introduction of acpi_unload_table() (Bob Moore).
* Debugger and utilities updates (Erik Schmauss).
* Fix for unloading tables loaded via configfs (Nikolaus Voss).
- Add support for EFI specific purpose memory to optionally allow
either application-exclusive or core-kernel-mm managed access to
differentiated memory (Dan Williams).
- Fix and clean up processing of the HMAT table (Brice Goglin,
Qian Cai, Tao Xu).
- Update the ACPI EC driver to make it work on systems with
hardware-reduced ACPI (Daniel Drake).
- Always build in support for the Generic Event Device (GED) to
allow one kernel binary to work both on systems with full
hardware ACPI and hardware-reduced ACPI (Arjan van de Ven).
- Fix the table unload mechanism to unregister platform devices
created when the given table was loaded (Andy Shevchenko).
- Rework the lid blacklist handling in the button driver and add
more lid quirks to it (Hans de Goede).
- Improve ACPI-based device enumeration for some platforms based
on Intel BayTrail SoCs (Hans de Goede).
- Add an OpRegion driver for the Cherry Trail Crystal Cove PMIC
and prevent handlers from being registered for unhandled PMIC
OpRegions (Hans de Goede).
- Unify ACPI _HID/_UID matching (Andy Shevchenko).
- Clean up documentation and comments (Cao jin, James Pack, Kacper
Piwiński).
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Merge tag 'acpi-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to upstream revision
20191018, add support for EFI specific purpose memory, update the ACPI
EC driver to make it work on systems with hardware-reduced ACPI,
improve ACPI-based device enumeration for some platforms, rework the
lid blacklist handling in the button driver and add more lid quirks to
it, unify ACPI _HID/_UID matching, fix assorted issues and clean up
the code and documentation.
Specifics:
- Update the ACPICA code in the kernel to upstream revision 20191018
including:
* Fixes for Clang warnings (Bob Moore)
* Fix for possible overflow in get_tick_count() (Bob Moore)
* Introduction of acpi_unload_table() (Bob Moore)
* Debugger and utilities updates (Erik Schmauss)
* Fix for unloading tables loaded via configfs (Nikolaus Voss)
- Add support for EFI specific purpose memory to optionally allow
either application-exclusive or core-kernel-mm managed access to
differentiated memory (Dan Williams)
- Fix and clean up processing of the HMAT table (Brice Goglin, Qian
Cai, Tao Xu)
- Update the ACPI EC driver to make it work on systems with
hardware-reduced ACPI (Daniel Drake)
- Always build in support for the Generic Event Device (GED) to allow
one kernel binary to work both on systems with full hardware ACPI
and hardware-reduced ACPI (Arjan van de Ven)
- Fix the table unload mechanism to unregister platform devices
created when the given table was loaded (Andy Shevchenko)
- Rework the lid blacklist handling in the button driver and add more
lid quirks to it (Hans de Goede)
- Improve ACPI-based device enumeration for some platforms based on
Intel BayTrail SoCs (Hans de Goede)
- Add an OpRegion driver for the Cherry Trail Crystal Cove PMIC and
prevent handlers from being registered for unhandled PMIC OpRegions
(Hans de Goede)
- Unify ACPI _HID/_UID matching (Andy Shevchenko)
- Clean up documentation and comments (Cao jin, James Pack, Kacper
Piwiński)"
* tag 'acpi-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (52 commits)
ACPI: OSI: Shoot duplicate word
ACPI: HMAT: use %u instead of %d to print u32 values
ACPI: NUMA: HMAT: fix a section mismatch
ACPI: HMAT: don't mix pxm and nid when setting memory target processor_pxm
ACPI: NUMA: HMAT: Register "soft reserved" memory as an "hmem" device
ACPI: NUMA: HMAT: Register HMAT at device_initcall level
device-dax: Add a driver for "hmem" devices
dax: Fix alloc_dax_region() compile warning
lib: Uplevel the pmem "region" ida to a global allocator
x86/efi: Add efi_fake_mem support for EFI_MEMORY_SP
arm/efi: EFI soft reservation to memblock
x86/efi: EFI soft reservation to E820 enumeration
efi: Common enable/disable infrastructure for EFI soft reservation
x86/efi: Push EFI_MEMMAP check into leaf routines
efi: Enumerate EFI_MEMORY_SP
ACPI: NUMA: Establish a new drivers/acpi/numa/ directory
ACPICA: Update version to 20191018
ACPICA: debugger: remove leading whitespaces when converting a string to a buffer
ACPICA: acpiexec: initialize all simple types and field units from user input
ACPICA: debugger: add field unit support for acpi_db_get_next_token
...
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Linus Torvalds
|
1d87200446 |
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 asm updates from Ingo Molnar:
"The main changes in this cycle were:
- Cross-arch changes to move the linker sections for NOTES and
EXCEPTION_TABLE into the RO_DATA area, where they belong on most
architectures. (Kees Cook)
- Switch the x86 linker fill byte from x90 (NOP) to 0xcc (INT3), to
trap jumps into the middle of those padding areas instead of
sliding execution. (Kees Cook)
- A thorough cleanup of symbol definitions within x86 assembler code.
The rather randomly named macros got streamlined around a
(hopefully) straightforward naming scheme:
SYM_START(name, linkage, align...)
SYM_END(name, sym_type)
SYM_FUNC_START(name)
SYM_FUNC_END(name)
SYM_CODE_START(name)
SYM_CODE_END(name)
SYM_DATA_START(name)
SYM_DATA_END(name)
etc - with about three times of these basic primitives with some
label, local symbol or attribute variant, expressed via postfixes.
No change in functionality intended. (Jiri Slaby)
- Misc other changes, cleanups and smaller fixes"
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (67 commits)
x86/entry/64: Remove pointless jump in paranoid_exit
x86/entry/32: Remove unused resume_userspace label
x86/build/vdso: Remove meaningless CFLAGS_REMOVE_*.o
m68k: Convert missed RODATA to RO_DATA
x86/vmlinux: Use INT3 instead of NOP for linker fill bytes
x86/mm: Report actual image regions in /proc/iomem
x86/mm: Report which part of kernel image is freed
x86/mm: Remove redundant address-of operators on addresses
xtensa: Move EXCEPTION_TABLE to RO_DATA segment
powerpc: Move EXCEPTION_TABLE to RO_DATA segment
parisc: Move EXCEPTION_TABLE to RO_DATA segment
microblaze: Move EXCEPTION_TABLE to RO_DATA segment
ia64: Move EXCEPTION_TABLE to RO_DATA segment
h8300: Move EXCEPTION_TABLE to RO_DATA segment
c6x: Move EXCEPTION_TABLE to RO_DATA segment
arm64: Move EXCEPTION_TABLE to RO_DATA segment
alpha: Move EXCEPTION_TABLE to RO_DATA segment
x86/vmlinux: Move EXCEPTION_TABLE to RO_DATA segment
x86/vmlinux: Actually use _etext for the end of the text segment
vmlinux.lds.h: Allow EXCEPTION_TABLE to live in RO_DATA
...
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Linus Torvalds
|
da42761df5 |
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform updates from Ingo Molnar: "UV platform updates (with a 'hubless' variant) and Jailhouse updates for better UART support" * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/jailhouse: Only enable platform UARTs if available x86/jailhouse: Improve setup data version comparison x86/platform/uv: Account for UV Hubless in is_uvX_hub Ops x86/platform/uv: Check EFI Boot to set reboot type x86/platform/uv: Decode UVsystab Info x86/platform/uv: Add UV Hubbed/Hubless Proc FS Files x86/platform/uv: Setup UV functions for Hubless UV Systems x86/platform/uv: Add return code to UV BIOS Init function x86/platform/uv: Return UV Hubless System Type x86/platform/uv: Save OEM_ID from ACPI MADT probe |
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Linus Torvalds
|
436b2a8039 |
Printk changes for 5.5
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Lee Jones
|
504c3fad8c |
x86: olpc-xo1-sci: Remove invocation of MFD's .enable()/.disable() call-backs
IO regions are now requested and released by this device's parent. Signed-off-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> |
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Lee Jones
|
0cfe013c22 |
x86: olpc-xo1-pm: Remove invocation of MFD's .enable()/.disable() call-backs
IO regions are now requested and released by this device's parent. Signed-off-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> |
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Dan Williams
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199c847176 |
x86/efi: Add efi_fake_mem support for EFI_MEMORY_SP
Given that EFI_MEMORY_SP is platform BIOS policy decision for marking memory ranges as "reserved for a specific purpose" there will inevitably be scenarios where the BIOS omits the attribute in situations where it is desired. Unlike other attributes if the OS wants to reserve this memory from the kernel the reservation needs to happen early in init. So early, in fact, that it needs to happen before e820__memblock_setup() which is a pre-requisite for efi_fake_memmap() that wants to allocate memory for the updated table. Introduce an x86 specific efi_fake_memmap_early() that can search for attempts to set EFI_MEMORY_SP via efi_fake_mem and update the e820 table accordingly. The KASLR code that scans the command line looking for user-directed memory reservations also needs to be updated to consider "efi_fake_mem=nn@ss:0x40000" requests. Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Dan Williams
|
262b45ae3a |
x86/efi: EFI soft reservation to E820 enumeration
UEFI 2.8 defines an EFI_MEMORY_SP attribute bit to augment the
interpretation of the EFI Memory Types as "reserved for a specific
purpose".
The proposed Linux behavior for specific purpose memory is that it is
reserved for direct-access (device-dax) by default and not available for
any kernel usage, not even as an OOM fallback. Later, through udev
scripts or another init mechanism, these device-dax claimed ranges can
be reconfigured and hot-added to the available System-RAM with a unique
node identifier. This device-dax management scheme implements "soft" in
the "soft reserved" designation by allowing some or all of the
reservation to be recovered as typical memory. This policy can be
disabled at compile-time with CONFIG_EFI_SOFT_RESERVE=n, or runtime with
efi=nosoftreserve.
This patch introduces 2 new concepts at once given the entanglement
between early boot enumeration relative to memory that can optionally be
reserved from the kernel page allocator by default. The new concepts
are:
- E820_TYPE_SOFT_RESERVED: Upon detecting the EFI_MEMORY_SP
attribute on EFI_CONVENTIONAL memory, update the E820 map with this
new type. Only perform this classification if the
CONFIG_EFI_SOFT_RESERVE=y policy is enabled, otherwise treat it as
typical ram.
- IORES_DESC_SOFT_RESERVED: Add a new I/O resource descriptor for
a device driver to search iomem resources for application specific
memory. Teach the iomem code to identify such ranges as "Soft Reserved".
Note that the comment for do_add_efi_memmap() needed refreshing since it
seemed to imply that the efi map might overflow the e820 table, but that
is not an issue as of commit
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|
Dan Williams
|
6950e31b35 |
x86/efi: Push EFI_MEMMAP check into leaf routines
In preparation for adding another EFI_MEMMAP dependent call that needs to occur before e820__memblock_setup() fixup the existing efi calls to check for EFI_MEMMAP internally. This ends up being cleaner than the alternative of checking EFI_MEMMAP multiple times in setup_arch(). Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
||
Kefeng Wang
|
8d3bcc441e |
x86: Use pr_warn instead of pr_warning
As said in commit
|
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Jiri Slaby
|
6d685e5318 |
x86/asm/32: Change all ENTRY+ENDPROC to SYM_FUNC_*
These are all functions which are invoked from elsewhere, so annotate them as global using the new SYM_FUNC_START and their ENDPROC's by SYM_FUNC_END. Now, ENTRY/ENDPROC can be forced to be undefined on X86, so do so. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Allison Randal <allison@lohutok.net> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Andy Shevchenko <andy@infradead.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Bill Metzenthen <billm@melbpc.org.au> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Darren Hart <dvhart@infradead.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: linux-arch@vger.kernel.org Cc: linux-crypto@vger.kernel.org Cc: linux-efi <linux-efi@vger.kernel.org> Cc: linux-efi@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: Mark Rutland <mark.rutland@arm.com> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Pavel Machek <pavel@ucw.cz> Cc: platform-driver-x86@vger.kernel.org Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will@kernel.org> Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/20191011115108.12392-28-jslaby@suse.cz |
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|
Jiri Slaby
|
6dcc5627f6 |
x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*
These are all functions which are invoked from elsewhere, so annotate them as global using the new SYM_FUNC_START and their ENDPROC's by SYM_FUNC_END. Make sure ENTRY/ENDPROC is not defined on X86_64, given these were the last users. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [hibernate] Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits] Acked-by: Herbert Xu <herbert@gondor.apana.org.au> [crypto] Cc: Allison Randal <allison@lohutok.net> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Andy Shevchenko <andy@infradead.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Armijn Hemel <armijn@tjaldur.nl> Cc: Cao jin <caoj.fnst@cn.fujitsu.com> Cc: Darren Hart <dvhart@infradead.org> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Enrico Weigelt <info@metux.net> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jim Mattson <jmattson@google.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: kvm ML <kvm@vger.kernel.org> Cc: Len Brown <len.brown@intel.com> Cc: linux-arch@vger.kernel.org Cc: linux-crypto@vger.kernel.org Cc: linux-efi <linux-efi@vger.kernel.org> Cc: linux-efi@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: Mark Rutland <mark.rutland@arm.com> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Peter Zijlstra <peterz@infradead.org> Cc: platform-driver-x86@vger.kernel.org Cc: "Radim Krčmář" <rkrcmar@redhat.com> Cc: Sean Christopherson <sean.j.christopherson@intel.com> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: Wanpeng Li <wanpengli@tencent.com> Cc: Wei Huang <wei@redhat.com> Cc: x86-ml <x86@kernel.org> Cc: xen-devel@lists.xenproject.org Cc: Xiaoyao Li <xiaoyao.li@linux.intel.com> Link: https://lkml.kernel.org/r/20191011115108.12392-25-jslaby@suse.cz |
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|
Jiri Slaby
|
4aec216b93 |
x86/asm/64: Add ENDs to some functions and relabel with SYM_CODE_*
All these are functions which are invoked from elsewhere but they are not typical C functions. So annotate them using the new SYM_CODE_START. All these were not balanced with any END, so mark their ends by SYM_CODE_END appropriately too. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits] Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [power mgmt] Cc: Andy Shevchenko <andy@infradead.org> Cc: Cao jin <caoj.fnst@cn.fujitsu.com> Cc: Darren Hart <dvhart@infradead.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: linux-arch@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: Pavel Machek <pavel@ucw.cz> Cc: Pingfan Liu <kernelfans@gmail.com> Cc: platform-driver-x86@vger.kernel.org Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wei Huang <wei@redhat.com> Cc: x86-ml <x86@kernel.org> Cc: xen-devel@lists.xenproject.org Cc: Xiaoyao Li <xiaoyao.li@linux.intel.com> Link: https://lkml.kernel.org/r/20191011115108.12392-23-jslaby@suse.cz |
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Jiri Slaby
|
ef1e03152c |
x86/asm: Make some functions local
There are a couple of assembly functions which are invoked only locally
in the file they are defined. In C, they are marked "static". In
assembly, annotate them using SYM_{FUNC,CODE}_START_LOCAL (and switch
their ENDPROC to SYM_{FUNC,CODE}_END too). Whether FUNC or CODE is used,
depends on whether ENDPROC or END was used for a particular function
before.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Andy Shevchenko <andy@infradead.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-efi <linux-efi@vger.kernel.org>
Cc: linux-efi@vger.kernel.org
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: platform-driver-x86@vger.kernel.org
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Cc: xen-devel@lists.xenproject.org
Link: https://lkml.kernel.org/r/20191011115108.12392-21-jslaby@suse.cz
|
||
|
Jiri Slaby
|
1de5bdce0c |
xen/pvh: Annotate data appropriately
Use the new SYM_DATA_START_LOCAL, and SYM_DATA_END* macros to get: 0000 8 OBJECT LOCAL DEFAULT 6 gdt 0008 32 OBJECT LOCAL DEFAULT 6 gdt_start 0028 0 OBJECT LOCAL DEFAULT 6 gdt_end 0028 256 OBJECT LOCAL DEFAULT 6 early_stack 0128 0 OBJECT LOCAL DEFAULT 6 early_stack Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Andy Shevchenko <andy@infradead.org> Cc: Darren Hart <dvhart@infradead.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: linux-arch@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: x86-ml <x86@kernel.org> Cc: xen-devel@lists.xenproject.org Link: https://lkml.kernel.org/r/20191011115108.12392-15-jslaby@suse.cz |
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|
Dave Young
|
2ecb7402cf |
efi/x86: Do not clean dummy variable in kexec path
kexec reboot fails randomly in UEFI based KVM guest. The firmware just resets while calling efi_delete_dummy_variable(); Unfortunately I don't know how to debug the firmware, it is also possible a potential problem on real hardware as well although nobody reproduced it. The intention of the efi_delete_dummy_variable is to trigger garbage collection when entering virtual mode. But SetVirtualAddressMap can only run once for each physical reboot, thus kexec_enter_virtual_mode() is not necessarily a good place to clean a dummy object. Drop the efi_delete_dummy_variable so that kexec reboot can work. Signed-off-by: Dave Young <dyoung@redhat.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Matthew Garrett <mjg59@google.com> Cc: Ben Dooks <ben.dooks@codethink.co.uk> Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Cc: Jerry Snitselaar <jsnitsel@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Lukas Wunner <lukas@wunner.de> Cc: Lyude Paul <lyude@redhat.com> Cc: Octavian Purdila <octavian.purdila@intel.com> Cc: Peter Jones <pjones@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Scott Talbert <swt@techie.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Cc: linux-integrity@vger.kernel.org Link: https://lkml.kernel.org/r/20191002165904.8819-8-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Mike Travis
|
9743cb68f7 |
x86/platform/uv: Add return code to UV BIOS Init function
Add a return code to the UV BIOS init function that indicates the successful initialization of the kernel/BIOS callback interface. Signed-off-by: Mike Travis <mike.travis@hpe.com> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Christoph Hellwig <hch@infradead.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Hedi Berriche <hedi.berriche@hpe.com> Cc: Justin Ernst <justin.ernst@hpe.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russ Anderson <russ.anderson@hpe.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190910145839.895739629@stormcage.eag.rdlabs.hpecorp.net Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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|
Linus Torvalds
|
1f7d290a72 |
Driver core patches for 5.4-rc1
Here is the big driver core update for 5.4-rc1.
There was a bit of a churn in here, with a number of core and OF
platform patches being added to the tree, and then after much discussion
and review and a day-long in-person meeting, they were decided to be
reverted and a new set of patches is currently being reviewed on the
mailing list.
Other than that churn, there are two "persistent" branches in here that
other trees will be pulling in as well during the merge window. One
branch to add support for drivers to have the driver core automatically
add sysfs attribute files when a driver is bound to a device so that the
driver doesn't have to manually do it (and then clean it up, as it
always gets it wrong).
There's another branch in here for generic lookup helpers for the driver
core that lots of busses are starting to use. That's the majority of
the non-driver-core changes in this patch series.
There's also some on-going debugfs file creation cleanup that has been
slowly happening over the past few releases, with the goal to hopefully
get that done sometime next year.
All of these have been in linux-next for a while now with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg Kroah-Hartman:
"Here is the big driver core update for 5.4-rc1.
There was a bit of a churn in here, with a number of core and OF
platform patches being added to the tree, and then after much
discussion and review and a day-long in-person meeting, they were
decided to be reverted and a new set of patches is currently being
reviewed on the mailing list.
Other than that churn, there are two "persistent" branches in here
that other trees will be pulling in as well during the merge window.
One branch to add support for drivers to have the driver core
automatically add sysfs attribute files when a driver is bound to a
device so that the driver doesn't have to manually do it (and then
clean it up, as it always gets it wrong).
There's another branch in here for generic lookup helpers for the
driver core that lots of busses are starting to use. That's the
majority of the non-driver-core changes in this patch series.
There's also some on-going debugfs file creation cleanup that has been
slowly happening over the past few releases, with the goal to
hopefully get that done sometime next year.
All of these have been in linux-next for a while now with no reported
issues"
[ Note that the above-mentioned generic lookup helpers branch was
already brought in by the LED merge (commit
|
||
|
Linus Torvalds
|
6f24671485 |
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform update from Ingo Molnar: "The biggest change is the rework of the intel/iosf_mbi locking code which used a few non-standard locking patterns, to make it work under lockdep" * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/platform/uv: Fix kmalloc() NULL check routine x86/platform/intel/iosf_mbi Rewrite locking |
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Austin Kim
|
864b23f016 |
x86/platform/uv: Fix kmalloc() NULL check routine
The result of kmalloc() should have been checked ahead of below statement: pqp = (struct bau_pq_entry *)vp; Move BUG_ON(!vp) before above statement. Signed-off-by: Austin Kim <austindh.kim@gmail.com> Cc: Dimitri Sivanich <dimitri.sivanich@hpe.com> Cc: Hedi Berriche <hedi.berriche@hpe.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Travis <mike.travis@hpe.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russ Anderson <russ.anderson@hpe.com> Cc: Steve Wahl <steve.wahl@hpe.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: allison@lohutok.net Cc: andy@infradead.org Cc: armijn@tjaldur.nl Cc: bp@alien8.de Cc: dvhart@infradead.org Cc: gregkh@linuxfoundation.org Cc: hpa@zytor.com Cc: kjlu@umn.edu Cc: platform-driver-x86@vger.kernel.org Link: https://lkml.kernel.org/r/20190905232951.GA28779@LGEARND20B15 Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Hans de Goede
|
00452ba9fd |
x86/platform/intel/iosf_mbi Rewrite locking
There are 2 problems with the old iosf PMIC I2C bus arbritration code which need to be addressed: 1. The lockdep code complains about a possible deadlock in the iosf_mbi_[un]block_punit_i2c_access code: [ 6.712662] ====================================================== [ 6.712673] WARNING: possible circular locking dependency detected [ 6.712685] 5.3.0-rc2+ #79 Not tainted [ 6.712692] ------------------------------------------------------ [ 6.712702] kworker/0:1/7 is trying to acquire lock: [ 6.712712] 00000000df1c5681 (iosf_mbi_block_punit_i2c_access_count_mutex){+.+.}, at: iosf_mbi_unblock_punit_i2c_access+0x13/0x90 [ 6.712739] but task is already holding lock: [ 6.712749] 0000000067cb23e7 (iosf_mbi_punit_mutex){+.+.}, at: iosf_mbi_block_punit_i2c_access+0x97/0x186 [ 6.712768] which lock already depends on the new lock. [ 6.712780] the existing dependency chain (in reverse order) is: [ 6.712792] -> #1 (iosf_mbi_punit_mutex){+.+.}: [ 6.712808] __mutex_lock+0xa8/0x9a0 [ 6.712818] iosf_mbi_block_punit_i2c_access+0x97/0x186 [ 6.712831] i2c_dw_acquire_lock+0x20/0x30 [ 6.712841] i2c_dw_set_reg_access+0x15/0xb0 [ 6.712851] i2c_dw_probe+0x57/0x473 [ 6.712861] dw_i2c_plat_probe+0x33e/0x640 [ 6.712874] platform_drv_probe+0x38/0x80 [ 6.712884] really_probe+0xf3/0x380 [ 6.712894] driver_probe_device+0x59/0xd0 [ 6.712905] bus_for_each_drv+0x84/0xd0 [ 6.712915] __device_attach+0xe4/0x170 [ 6.712925] bus_probe_device+0x9f/0xb0 [ 6.712935] deferred_probe_work_func+0x79/0xd0 [ 6.712946] process_one_work+0x234/0x560 [ 6.712957] worker_thread+0x50/0x3b0 [ 6.712967] kthread+0x10a/0x140 [ 6.712977] ret_from_fork+0x3a/0x50 [ 6.712986] -> #0 (iosf_mbi_block_punit_i2c_access_count_mutex){+.+.}: [ 6.713004] __lock_acquire+0xe07/0x1930 [ 6.713015] lock_acquire+0x9d/0x1a0 [ 6.713025] __mutex_lock+0xa8/0x9a0 [ 6.713035] iosf_mbi_unblock_punit_i2c_access+0x13/0x90 [ 6.713047] i2c_dw_set_reg_access+0x4d/0xb0 [ 6.713058] i2c_dw_probe+0x57/0x473 [ 6.713068] dw_i2c_plat_probe+0x33e/0x640 [ 6.713079] platform_drv_probe+0x38/0x80 [ 6.713089] really_probe+0xf3/0x380 [ 6.713099] driver_probe_device+0x59/0xd0 [ 6.713109] bus_for_each_drv+0x84/0xd0 [ 6.713119] __device_attach+0xe4/0x170 [ 6.713129] bus_probe_device+0x9f/0xb0 [ 6.713140] deferred_probe_work_func+0x79/0xd0 [ 6.713150] process_one_work+0x234/0x560 [ 6.713160] worker_thread+0x50/0x3b0 [ 6.713170] kthread+0x10a/0x140 [ 6.713180] ret_from_fork+0x3a/0x50 [ 6.713189] other info that might help us debug this: [ 6.713202] Possible unsafe locking scenario: [ 6.713212] CPU0 CPU1 [ 6.713221] ---- ---- [ 6.713229] lock(iosf_mbi_punit_mutex); [ 6.713239] lock(iosf_mbi_block_punit_i2c_access_count_mutex); [ 6.713253] lock(iosf_mbi_punit_mutex); [ 6.713265] lock(iosf_mbi_block_punit_i2c_access_count_mutex); [ 6.713276] *** DEADLOCK *** In practice can never happen because only the first caller which increments iosf_mbi_block_punit_i2c_access_count will also take iosf_mbi_punit_mutex, that is the whole purpose of the counter, which itself is protected by iosf_mbi_block_punit_i2c_access_count_mutex. But there is no way to tell the lockdep code about this and we really want to be able to run a kernel with lockdep enabled without these warnings being triggered. 2. The lockdep warning also points out another real problem, if 2 threads both are in a block of code protected by iosf_mbi_block_punit_i2c_access and the first thread to acquire the block exits before the second thread then the second thread will call mutex_unlock on iosf_mbi_punit_mutex, but it is not the thread which took the mutex and unlocking by another thread is not allowed. Fix this by getting rid of the notion of holding a mutex for the entire duration of the PMIC accesses, be it either from the PUnit side, or from an in kernel I2C driver. In general holding a mutex after exiting a function is a bad idea and the above problems show this case is no different. Instead 2 counters are now used, one for PMIC accesses from the PUnit and one for accesses from in kernel I2C code. When access is requested now the code will wait (using a waitqueue) for the counter of the other type of access to reach 0 and on release, if the counter reaches 0 the wakequeue is woken. Note that the counter approach is necessary to allow nested calls. The main reason for this is so that a series of i2c transfers can be done with the punit blocked from accessing the bus the whole time. This is necessary to be able to safely read/modify/write a PMIC register without racing with the PUNIT doing the same thing. Allowing nested iosf_mbi_block_punit_i2c_access() calls also is desirable from a performance pov since the whole dance necessary to block the PUnit from accessing the PMIC I2C bus is somewhat expensive. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lkml.kernel.org/r/20190812102113.95794-1-hdegoede@redhat.com |
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Narendra K
|
1c5fecb612 |
efi: Export Runtime Configuration Interface table to sysfs
System firmware advertises the address of the 'Runtime Configuration Interface table version 2 (RCI2)' via an EFI Configuration Table entry. This code retrieves the RCI2 table from the address and exports it to sysfs as a binary attribute 'rci2' under /sys/firmware/efi/tables directory. The approach adopted is similar to the attribute 'DMI' under /sys/firmware/dmi/tables. RCI2 table contains BIOS HII in XML format and is used to populate BIOS setup page in Dell EMC OpenManage Server Administrator tool. The BIOS setup page contains BIOS tokens which can be configured. Signed-off-by: Narendra K <Narendra.K@dell.com> Reviewed-by: Mario Limonciello <mario.limonciello@dell.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> |
||
Ard Biesheuvel
|
5828efb95b |
efi: ia64: move SAL systab handling out of generic EFI code
The SAL systab is an Itanium specific EFI configuration table, so move its handling into arch/ia64 where it belongs. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> |
||
|
Ard Biesheuvel
|
ec7e1605d7 |
efi/x86: move UV_SYSTAB handling into arch/x86
The SGI UV UEFI machines are tightly coupled to the x86 architecture so there is no need to keep any awareness of its existence in the generic EFI layer, especially since we already have the infrastructure to handle arch-specific configuration tables, and were even already using it to some extent. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> |
||
|
Ard Biesheuvel
|
e55f31a599 |
efi: x86: move efi_is_table_address() into arch/x86
The function efi_is_table_address() and the associated array of table pointers is specific to x86. Since we will be adding some more x86 specific tables, let's move this code out of the generic code first. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> |
||
Greg Kroah-Hartman
|
0fbb93fce7 |
olpc: x01: convert platform driver to use dev_groups
Platform drivers now have the option to have the platform core create and remove any needed sysfs attribute files. So take advantage of that and do not register "by hand" a lid sysfs file. Cc: Darren Hart <dvhart@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: x86@kernel.org Cc: platform-driver-x86@vger.kernel.org Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20190731124349.4474-7-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Linus Torvalds
|
5516745311 |
platform-drivers-x86 for v5.3-1
ASUS WMI driver got a big refactoring in order to support the TUF Gaming laptops. Besides that, the regression with backlight being permanently off on various EeePC laptops has been fixed. Accelerometer on HP ProBook 450 G0 shows wrong measurements due to X axis being inverted. This has been fixed. Intel PMC core driver has been extended to be ACPI enumerated if the DSDT provides device with _HID "INT33A1". This allows to convert the driver to be pure platform and support new hardware purely based on ACPI DSDT. From now on the Intel Speed Select Technology is supported thru a corresponding driver. This driver provides an access to the features of the ISST, such as Performance Profile, Core Power, Base frequency and Turbo Frequency. Mellanox platform drivers has been refactored and now extended to support more systems, including new coming ones. The OLPC XO-1.75 platform is now supported. CB4063 Beckhoff Automation board is using PMC clocks, provided via pmc_atom driver, for ethernet controllers in a way that they can't be managed by the clock driver. The quirk has been extended to cover this case. Touchscreen on Chuwi Hi10 Plus tablet has been enabled. Meanwhile the information of Chuwi Hi10 Air has been fixed to cover more models based on the same platform. Xiaomi notebooks have WMI interface enabled. Thus, the driver to support it has been provided. It required some extension of the generic WMI library, which allows to propagate opaque context to the ->probe() of the individual drivers. This release includes debugfs clean up from Greg KH for several drivers that drop return code check and make debugfs absence or failure non-fatal. Miscellaneous fixes here and there, mostly for Acer WMI and various Intel drivers. The listed below commits are duplicated due to previously pushed fixes in v5.2 cycle: - |
||
|
Linus Torvalds
|
f632a8170a |
Driver Core and debugfs changes for 5.3-rc1
Here is the "big" driver core and debugfs changes for 5.3-rc1
It's a lot of different patches, all across the tree due to some api
changes and lots of debugfs cleanups. Because of this, there is going
to be some merge issues with your tree at the moment, I'll follow up
with the expected resolutions to make it easier for you.
Other than the debugfs cleanups, in this set of changes we have:
- bus iteration function cleanups (will cause build warnings
with s390 and coresight drivers in your tree)
- scripts/get_abi.pl tool to display and parse Documentation/ABI
entries in a simple way
- cleanups to Documenatation/ABI/ entries to make them parse
easier due to typos and other minor things
- default_attrs use for some ktype users
- driver model documentation file conversions to .rst
- compressed firmware file loading
- deferred probe fixes
All of these have been in linux-next for a while, with a bunch of merge
issues that Stephen has been patient with me for. Other than the merge
issues, functionality is working properly in linux-next :)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core and debugfs updates from Greg KH:
"Here is the "big" driver core and debugfs changes for 5.3-rc1
It's a lot of different patches, all across the tree due to some api
changes and lots of debugfs cleanups.
Other than the debugfs cleanups, in this set of changes we have:
- bus iteration function cleanups
- scripts/get_abi.pl tool to display and parse Documentation/ABI
entries in a simple way
- cleanups to Documenatation/ABI/ entries to make them parse easier
due to typos and other minor things
- default_attrs use for some ktype users
- driver model documentation file conversions to .rst
- compressed firmware file loading
- deferred probe fixes
All of these have been in linux-next for a while, with a bunch of
merge issues that Stephen has been patient with me for"
* tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (102 commits)
debugfs: make error message a bit more verbose
orangefs: fix build warning from debugfs cleanup patch
ubifs: fix build warning after debugfs cleanup patch
driver: core: Allow subsystems to continue deferring probe
drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT
arch_topology: Remove error messages on out-of-memory conditions
lib: notifier-error-inject: no need to check return value of debugfs_create functions
swiotlb: no need to check return value of debugfs_create functions
ceph: no need to check return value of debugfs_create functions
sunrpc: no need to check return value of debugfs_create functions
ubifs: no need to check return value of debugfs_create functions
orangefs: no need to check return value of debugfs_create functions
nfsd: no need to check return value of debugfs_create functions
lib: 842: no need to check return value of debugfs_create functions
debugfs: provide pr_fmt() macro
debugfs: log errors when something goes wrong
drivers: s390/cio: Fix compilation warning about const qualifiers
drivers: Add generic helper to match by of_node
driver_find_device: Unify the match function with class_find_device()
bus_find_device: Unify the match callback with class_find_device
...
|
||
|
Linus Torvalds
|
e9a83bd232 |
It's been a relatively busy cycle for docs:
- A fair pile of RST conversions, many from Mauro. These create more
than the usual number of simple but annoying merge conflicts with other
trees, unfortunately. He has a lot more of these waiting on the wings
that, I think, will go to you directly later on.
- A new document on how to use merges and rebases in kernel repos, and one
on Spectre vulnerabilities.
- Various improvements to the build system, including automatic markup of
function() references because some people, for reasons I will never
understand, were of the opinion that :c:func:``function()`` is
unattractive and not fun to type.
- We now recommend using sphinx 1.7, but still support back to 1.4.
- Lots of smaller improvements, warning fixes, typo fixes, etc.
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Merge tag 'docs-5.3' of git://git.lwn.net/linux
Pull Documentation updates from Jonathan Corbet:
"It's been a relatively busy cycle for docs:
- A fair pile of RST conversions, many from Mauro. These create more
than the usual number of simple but annoying merge conflicts with
other trees, unfortunately. He has a lot more of these waiting on
the wings that, I think, will go to you directly later on.
- A new document on how to use merges and rebases in kernel repos,
and one on Spectre vulnerabilities.
- Various improvements to the build system, including automatic
markup of function() references because some people, for reasons I
will never understand, were of the opinion that
:c:func:``function()`` is unattractive and not fun to type.
- We now recommend using sphinx 1.7, but still support back to 1.4.
- Lots of smaller improvements, warning fixes, typo fixes, etc"
* tag 'docs-5.3' of git://git.lwn.net/linux: (129 commits)
docs: automarkup.py: ignore exceptions when seeking for xrefs
docs: Move binderfs to admin-guide
Disable Sphinx SmartyPants in HTML output
doc: RCU callback locks need only _bh, not necessarily _irq
docs: format kernel-parameters -- as code
Doc : doc-guide : Fix a typo
platform: x86: get rid of a non-existent document
Add the RCU docs to the core-api manual
Documentation: RCU: Add TOC tree hooks
Documentation: RCU: Rename txt files to rst
Documentation: RCU: Convert RCU UP systems to reST
Documentation: RCU: Convert RCU linked list to reST
Documentation: RCU: Convert RCU basic concepts to reST
docs: filesystems: Remove uneeded .rst extension on toctables
scripts/sphinx-pre-install: fix out-of-tree build
docs: zh_CN: submitting-drivers.rst: Remove a duplicated Documentation/
Documentation: PGP: update for newer HW devices
Documentation: Add section about CPU vulnerabilities for Spectre
Documentation: platform: Delete x86-laptop-drivers.txt
docs: Note that :c:func: should no longer be used
...
|
||
|
Linus Torvalds
|
8faef7125d |
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform updayes from Ingo Molnar: "Most of the commits add ACRN hypervisor guest support, plus two cleanups" * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/jailhouse: Mark jailhouse_x2apic_available() as __init x86/platform/geode: Drop <linux/gpio.h> includes x86/acrn: Use HYPERVISOR_CALLBACK_VECTOR for ACRN guest upcall vector x86: Add support for Linux guests on an ACRN hypervisor x86/Kconfig: Add new X86_HV_CALLBACK_VECTOR config symbol |
||
|
Linus Torvalds
|
a7211bc9f3 |
Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Ingo Molnar: "Four fixes: - fix a kexec crash on arm64 - fix a reboot crash on some Android platforms - future-proof the code for upcoming ACPI 6.2 changes - fix a build warning on x86" * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efibc: Replace variable set function in notifier call x86/efi: fix a -Wtype-limits compilation warning efi/bgrt: Drop BGRT status field reserved bits check efi/memreserve: deal with memreserve entries in unmapped memory |
||
Linus Walleij
|
670b004417 |
x86/platform/geode: Drop <linux/gpio.h> includes
These board files only use gpio_keys not gpio in general. This include is just surplus, delete it. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: linux-gpio@vger.kernel.org Cc: Andres Salomon <dilinger@queued.net> Cc: linux-geode@lists.infradead.org Cc: Andy Shevchenko <andy@infradead.org> Cc: Darren Hart <dvhart@infradead.org> Cc: platform-driver-x86@vger.kernel.org Link: https://lkml.kernel.org/r/20190626092119.3172-1-linus.walleij@linaro.org |
||
Qian Cai
|
919aef44d7 |
x86/efi: fix a -Wtype-limits compilation warning
Compiling a kernel with W=1 generates this warning,
arch/x86/platform/efi/quirks.c:731:16: warning: comparison of unsigned
expression >= 0 is always true [-Wtype-limits]
Fixes:
|
||
Thomas Gleixner
|
d2912cb15b |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
Jonathan Corbet
|
8afecfb0ec |
Linux 5.2-rc4
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAlz8fAYeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiG1asH/3ySguxqtqL1MCBa 4/SZ37PHeWKMerfX6ZyJdgEqK3B+PWlmuLiOMNK5h2bPLzeQQQAmHU/mfKmpXqgB dHwUbG9yNnyUtTfsfRqAnCA6vpuw9Yb1oIzTCVQrgJLSWD0j7scBBvmzYqguOkto ThwigLUq3AILr8EfR4rh+GM+5Dn9OTEFAxwil9fPHQo7QoczwZxpURhScT6Co9TB DqLA3fvXbBvLs/CZy/S5vKM9hKzC+p39ApFTURvFPrelUVnythAM0dPDJg3pIn5u g+/+gDxDFa+7ANxvxO2ng1sJPDqJMeY/xmjJYlYyLpA33B7zLNk2vDHhAP06VTtr XCMhQ9s= =cb80 -----END PGP SIGNATURE----- Merge tag 'v5.2-rc4' into mauro We need to pick up post-rc1 changes to various document files so they don't get lost in Mauro's massive RST conversion push. |
||
Lubomir Rintel
|
b8a84365bb |
Platform: OLPC: Make olpc_dt_compatible_match() static __init
Addresses a kbuild warning:
>> WARNING: vmlinux.o(.text+0x3b764): Section mismatch in reference from
the function olpc_dt_compatible_match() to the function
.init.text:olpc_dt_getproperty()
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Reported-by: kbuild test robot <lkp@intel.com>
Fixes:
|
||
Mauro Carvalho Chehab
|
cb1aaebea8 |
docs: fix broken documentation links
Mostly due to x86 and acpi conversion, several documentation links are still pointing to the old file. Fix them. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Reviewed-by: Wolfram Sang <wsa@the-dreams.de> Reviewed-by: Sven Van Asbroeck <TheSven73@gmail.com> Reviewed-by: Bhupesh Sharma <bhsharma@redhat.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> |
||
|
Thomas Gleixner
|
b886d83c5b |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 315 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Armijn Hemel <armijn@tjaldur.nl> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190115.503150771@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Thomas Gleixner
|
75a6faf617 |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 101 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190113.822954939@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Thomas Gleixner
|
a61127c213 |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 111 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.567572064@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Thomas Gleixner
|
2025cf9e19 |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 263 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Thomas Gleixner
|
9c92ab6191 |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
Based on 1 normalized pattern(s): this software is licensed under the terms of the gnu general public license version 2 as published by the free software foundation and may be copied distributed and modified under those terms this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 285 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.642774971@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Greg Kroah-Hartman
|
519e96ee11 |
x86: platform: no need to check return value of debugfs_create functions
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: <x86@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Linus Torvalds
|
af0424522d |
Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Ingo Molnar: "Two EFI fixes: a quirk for weird systabs, plus add more robust error handling in the old 1:1 mapping code" * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi: Allow the number of EFI configuration tables entries to be zero efi/x86/Add missing error handling to old_memmap 1:1 mapping code |
||
|
Thomas Gleixner
|
1a59d1b8e0 |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Thomas Gleixner
|
2874c5fd28 |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
Rob Bradford
|
88447c5b93 |
efi: Allow the number of EFI configuration tables entries to be zero
Only try and access the EFI configuration tables if there there are any reported. This allows EFI to be continued to used on systems where there are no configuration table entries. Signed-off-by: Rob Bradford <robert.bradford@intel.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Gen Zhang <blackgod016574@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/20190525112559.7917-3-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
||
Gen Zhang
|
4e78921ba4 |
efi/x86/Add missing error handling to old_memmap 1:1 mapping code
The old_memmap flow in efi_call_phys_prolog() performs numerous memory allocations, and either does not check for failure at all, or it does but fails to propagate it back to the caller, which may end up calling into the firmware with an incomplete 1:1 mapping. So let's fix this by returning NULL from efi_call_phys_prolog() on memory allocation failures only, and by handling this condition in the caller. Also, clean up any half baked sets of page tables that we may have created before returning with a NULL return value. Note that any failure at this level will trigger a panic() two levels up, so none of this makes a huge difference, but it is a nice cleanup nonetheless. [ardb: update commit log, add efi_call_phys_epilog() call on error path] Signed-off-by: Gen Zhang <blackgod016574@gmail.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rob Bradford <robert.bradford@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/20190525112559.7917-2-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |