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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"Bugfixes for ARM, PPC and x86, plus selftest improvements"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: nVMX: Don't leak L1 MMIO regions to L2
KVM: SVM: Fix potential wrong physical id in avic_handle_ldr_update
kvm: clear kvmclock MSR on reset
KVM: x86: fix bugon.cocci warnings
KVM: VMX: Remove specialized handling of unexpected exit-reasons
selftests: kvm: fix sync_regs_test with newer gccs
selftests: kvm: vmx_dirty_log_test: skip the test when VMX is not supported
selftests: kvm: consolidate VMX support checks
selftests: kvm: vmx_set_nested_state_test: don't check for VMX support twice
KVM: Don't shrink/grow vCPU halt_poll_ns if host side polling is disabled
selftests: kvm: synchronize .gitignore to Makefile
kvm: x86: Expose RDPID in KVM_GET_SUPPORTED_CPUID
KVM: arm64: pmu: Reset sample period on overflow handling
KVM: arm64: pmu: Set the CHAINED attribute before creating the in-kernel event
arm64: KVM: Handle PMCR_EL0.LC as RES1 on pure AArch64 systems
KVM: arm64: pmu: Fix cycle counter truncation
KVM: PPC: Book3S HV: XIVE: Ensure VP isn't already in use
komeda:
- typo fixes
- flushing pipes fix
amdgpu:
- Fix suspend/resume issue related to multi-media engines
- Fix memory leak in user ptr code related to hmm conversion
- Fix possible VM faults when allocating page table memory
- Fix error handling in bo list ioctl
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Merge tag 'drm-fixes-2019-10-25' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Quiet week this week, which I suspect means some people just didn't
get around to sending me fixes pulls in time. This has 2 komeda and a
bunch of amdgpu fixes in it:
komeda:
- typo fixes
- flushing pipes fix
amdgpu:
- Fix suspend/resume issue related to multi-media engines
- Fix memory leak in user ptr code related to hmm conversion
- Fix possible VM faults when allocating page table memory
- Fix error handling in bo list ioctl"
* tag 'drm-fixes-2019-10-25' of git://anongit.freedesktop.org/drm/drm:
drm/komeda: Fix typos in komeda_splitter_validate
drm/komeda: Don't flush inactive pipes
drm/amdgpu/vce: fix allocation size in enc ring test
drm/amdgpu: fix error handling in amdgpu_bo_list_create
drm/amdgpu: fix potential VM faults
drm/amdgpu: user pages array memory leak fix
drm/amdgpu/vcn: fix allocation size in enc ring test
drm/amdgpu/uvd7: fix allocation size in enc ring test (v2)
drm/amdgpu/uvd6: fix allocation size in enc ring test (v2)
drm-fixes-5.4-2019-10-23:
amdgpu:
- Fix suspend/resume issue related to multi-media engines
- Fix memory leak in user ptr code related to hmm conversion
- Fix possible VM faults when allocating page table memory
- Fix error handling in bo list ioctl
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191024031809.3155-1-alexander.deucher@amd.com
when flushing inactive pipes
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Merge tag 'drm-misc-fixes-2019-10-23' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Two fixes for komeda, one for typos and one to prevent an hardware issue
when flushing inactive pipes
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191023112643.evpp6f23mpjwdsn4@gilmour
Fix a ref count, memory leak, and Risc-V cpu schema warnings.
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Merge tag 'devicetree-fixes-for-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree fixes from Rob Herring:
"A couple more DT fixes for 5.4: fix a ref count, memory leak, and
Risc-V cpu schema warnings"
* tag 'devicetree-fixes-for-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: reserved_mem: add missing of_node_put() for proper ref-counting
of: unittest: fix memory leak in unittest_data_add
dt-bindings: riscv: Fix CPU schema errors
Fix locking issue in the error code path of a function that belongs
to the sysfs interface exposed by the ACPI NFIT handling code (Dan
Carpenter).
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Merge tag 'acpi-5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Fix locking issue in the error code path of a function that belongs to
the sysfs interface exposed by the ACPI NFIT handling code (Dan
Carpenter)"
* tag 'acpi-5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: NFIT: Fix unlock on error in scrub_show()
- Using device PM QoS of CPU devices for managing frequency limits
in cpufreq does not work, so introduce frequency QoS (based on the
original low-level PM QoS) for this purpose, switch cpufreq and
related code over to using it and fix a race involving deferred
updates of frequency limits on top of that (Rafael Wysocki, Sudeep
Holla).
- Avoid calling regulator_enable()/disable() from the OPP framework
to avoid side-effects on boot-enabled regulators that may change their
initial voltage due to performing initial voltage balancing without
all restrictions from the consumers (Marek Szyprowski).
- Avoid a kref management issue in the OPP library code and drop an
incorrectly added lockdep_assert_held() from it (Viresh Kumar).
- Make the recently added haltpoll cpuidle driver take the 'idle='
override into account as appropriate (Zhenzhong Duan).
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Merge tag 'pm-5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix problems related to frequency limits management in cpufreq
that were introduced during the 5.3 cycle (when PM QoS had started to
be used for that), fix a few issues in the OPP (operating performance
points) library code and fix up the recently added haltpoll cpuidle
driver.
The cpufreq changes are somewhat bigger that I would like them to be
at this stage of the cycle, but the problems fixed by them include
crashes on boot and shutdown in some cases (among other things) and in
my view it is better to address the root of the issue right away.
Specifics:
- Using device PM QoS of CPU devices for managing frequency limits in
cpufreq does not work, so introduce frequency QoS (based on the
original low-level PM QoS) for this purpose, switch cpufreq and
related code over to using it and fix a race involving deferred
updates of frequency limits on top of that (Rafael Wysocki, Sudeep
Holla).
- Avoid calling regulator_enable()/disable() from the OPP framework
to avoid side-effects on boot-enabled regulators that may change
their initial voltage due to performing initial voltage balancing
without all restrictions from the consumers (Marek Szyprowski).
- Avoid a kref management issue in the OPP library code and drop an
incorrectly added lockdep_assert_held() from it (Viresh Kumar).
- Make the recently added haltpoll cpuidle driver take the 'idle='
override into account as appropriate (Zhenzhong Duan)"
* tag 'pm-5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
opp: Reinitialize the list_kref before adding the static OPPs again
cpufreq: Cancel policy update work scheduled before freeing
cpuidle: haltpoll: Take 'idle=' override into account
opp: core: Revert "add regulators enable and disable"
PM: QoS: Drop frequency QoS types from device PM QoS
cpufreq: Use per-policy frequency QoS
PM: QoS: Introduce frequency QoS
opp: of: drop incorrect lockdep_assert_held()
gfs2 and gfs2meta share an ->init_fs_context function which allocates an
args structure stored in fc->fs_private. gfs2 registers a ->free
function to free this memory when the fs_context is cleaned up, but
there was not one registered for gfs2meta, causing a leak.
Register a ->free function for gfs2meta. The existing gfs2_fc_free
function does what we need.
Reported-by: syzbot+c2fdfd2b783754878fb6@syzkaller.appspotmail.com
Fixes: 1f52aa08d12f ("gfs2: Convert gfs2 to fs_context")
Signed-off-by: Andrew Price <anprice@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
* pm-cpuidle:
cpuidle: haltpoll: Take 'idle=' override into account
* pm-opp:
opp: Reinitialize the list_kref before adding the static OPPs again
opp: core: Revert "add regulators enable and disable"
opp: of: drop incorrect lockdep_assert_held()
- Fix broken support for BananaPi-r2
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Merge tag 'mfd-fixes-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD fix from Lee Jones:
"Fix broken support for BananaPi-r2"
* tag 'mfd-fixes-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
mfd: mt6397: Fix probe after changing mt6397-core
This is a usual small bump in the middle, we've got a set of ASoC
fixes in this week as shown in diffstat.
The only change in the core stuff is about (somewhat minor) PCM
debugfs error handling. The major changes are rather for Intel
SOF and topology coverage, as well as other platform (rockchip,
samsung, stm) and codec fixes.
As non-ASoC changes, a couple of new HD-audio chip fixes and a
typo correction of USB-audio driver validation code are found.
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Merge tag 'sound-5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This is a usual small bump in the middle, we've got a set of ASoC
fixes in this week as shown in diffstat.
The only change in the core stuff is about (somewhat minor) PCM
debugfs error handling. The major changes are rather for Intel SOF and
topology coverage, as well as other platform (rockchip, samsung, stm)
and codec fixes.
As non-ASoC changes, a couple of new HD-audio chip fixes and a typo
correction of USB-audio driver validation code are found"
* tag 'sound-5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (29 commits)
ALSA: hda: Add Tigerlake/Jasperlake PCI ID
ALSA: usb-audio: Fix copy&paste error in the validator
ALSA: hda/realtek - Add support for ALC711
ASoC: SOF: control: return true when kcontrol values change
ASoC: stm32: sai: fix sysclk management on shutdown
ASoC: Intel: sof-rt5682: add a check for devm_clk_get
ASoC: rsnd: Reinitialize bit clock inversion flag for every format setting
ASoC: simple_card_utils.h: Fix potential multiple redefinition error
ASoC: msm8916-wcd-digital: add missing MIX2 path for RX1/2
ASoC: core: Fix pcm code debugfs error
ASoc: rockchip: i2s: Fix RPM imbalance
ASoC: wm_adsp: Don't generate kcontrols without READ flags
ASoC: intel: bytcr_rt5651: add null check to support_button_press
ASoC: intel: sof_rt5682: add remove function to disable jack
ASoC: rt5682: add NULL handler to set_jack function
ASoC: intel: sof_rt5682: use separate route map for dmic
ASoC: SOF: Intel: hda: Disable DMI L1 entry during capture
ASoC: SOF: Intel: initialise and verify FW crash dump data.
ASoC: SOF: Intel: hda: fix warnings during FW load
ASoC: SOF: pcm: harden PCM STOP sequence
...
Part 3 from this series [1] was not merged due to wrong splitting
and breaks mt6323 pmic on bananapi-r2
dmesg prints this line and at least switch is not initialized on bananapi-r2
mt6397 1000d000.pwrap:mt6323: unsupported chip: 0x0
this patch contains only the probe-changes and chip_data structs
from original part 3 by Hsin-Hsiung Wang
[1] https://patchwork.kernel.org/project/linux-mediatek/list/?series=164155
Fixes: a4872e80ce7d ("mfd: mt6397: Extract IRQ related code from core driver")
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Commit d698a388146c ("of: reserved-memory: ignore disabled memory-region
nodes") added an early return in of_reserved_mem_device_init_by_idx(), but
didn't call of_node_put() on a device_node whose ref-count was incremented
in the call to of_parse_phandle() preceding the early exit.
Fixes: d698a388146c ("of: reserved-memory: ignore disabled memory-region nodes")
Signed-off-by: Chris Goldsworthy <cgoldswo@codeaurora.org>
Cc: stable@vger.kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
- A race in perf trace initialization (missing mutexes)
- Minor fix to represent gfp_t in synthetic events as properly signed
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Merge tag 'trace-v5.4-rc3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"Two minor fixes:
- A race in perf trace initialization (missing mutexes)
- Minor fix to represent gfp_t in synthetic events as properly
signed"
* tag 'trace-v5.4-rc3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Fix race in perf_trace_buf initialization
tracing: Fix "gfp_t" format for synthetic events
In unittest_data_add, a copy buffer is created via kmemdup. This buffer
is leaked if of_fdt_unflatten_tree fails. The release for the
unittest_data buffer is added.
Fixes: b951f9dc7f25 ("Enabling OF selftest to run without machine's devicetree")
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Reviewed-by: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Fix the errors in the RiscV CPU DT schema:
Documentation/devicetree/bindings/riscv/cpus.example.dt.yaml: cpu@0: 'timebase-frequency' is a required property
Documentation/devicetree/bindings/riscv/cpus.example.dt.yaml: cpu@1: 'timebase-frequency' is a required property
Documentation/devicetree/bindings/riscv/cpus.example.dt.yaml: cpu@0: compatible:0: 'riscv' is not one of ['sifive,rocket0', 'sifive,e5', 'sifive,e51', 'sifive,u54-mc', 'sifive,u54', 'sifive,u5']
Documentation/devicetree/bindings/riscv/cpus.example.dt.yaml: cpu@0: compatible: ['riscv'] is too short
Documentation/devicetree/bindings/riscv/cpus.example.dt.yaml: cpu@0: 'timebase-frequency' is a required property
The DT spec allows for 'timebase-frequency' to be in 'cpu' or 'cpus' node
and RiscV requires it in /cpus node, so make it disallowed in cpu
nodes.
Fixes: 4fd669a8c487 ("dt-bindings: riscv: convert cpu binding to json-schema")
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: linux-riscv@lists.infradead.org
Acked-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Rob Herring <robh@kernel.org>
There are a few core fixes here around error handling and handling if
suspend mode configuration and some driver specific fixes here but the
most important change is the fix to the fixed-regulator DT schema
conversion introduced during the last merge window. That fixes one of
the last two errors preventing successful execution of "make dt_binding_check"
which will be enourmously helpful for DT schema development.
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Merge tag 'regulator-fix-v5.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"There are a few core fixes here around error handling and handling if
suspend mode configuration and some driver specific fixes here but the
most important change is the fix to the fixed-regulator DT schema
conversion introduced during the last merge window.
That fixes one of the last two errors preventing successful execution
of "make dt_binding_check" which will be enormously helpful for DT
schema development"
* tag 'regulator-fix-v5.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: qcom-rpmh: Fix PMIC5 BoB min voltage
regulator: pfuze100-regulator: Variable "val" in pfuze100_regulator_probe() could be uninitialized
regulator: lochnagar: Add on_off_delay for VDDCORE
regulator: ti-abb: Fix timeout in ti_abb_wait_txdone/ti_abb_clear_all_txdone
regulator: da9062: fix suspend_enable/disable preparation
dt-bindings: fixed-regulator: fix compatible enum
regulator: fixed: Prevent NULL pointer dereference when !CONFIG_OF
regulator: core: make regulator_register() EPROBE_DEFER aware
regulator: of: fix suspend-min/max-voltage parsing
- fix for alignment faults under high memory pressure
- use u32 for ARM instructions in fault handler
- mark functions that must always be inlined with __always_inline
- fix for nommu XIP
- fix ARMv7M switch to handler mode in reboot path
- fix the recently introduced AMBA reset control error paths
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Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
:Pull ARM fixes from Russell King:
- fix for alignment faults under high memory pressure
- use u32 for ARM instructions in fault handler
- mark functions that must always be inlined with __always_inline
- fix for nommu XIP
- fix ARMv7M switch to handler mode in reboot path
- fix the recently introduced AMBA reset control error paths
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8926/1: v7m: remove register save to stack before svc
ARM: 8914/1: NOMMU: Fix exc_ret for XIP
ARM: 8908/1: add __always_inline to functions called from __get_user_check()
ARM: mm: alignment: use "u32" for 32-bit instructions
ARM: mm: fix alignment handler faults under memory pressure
drivers/amba: fix reset control error handling
Future pending rework of the ghes_edac instances registration will do
away with the single memory controller per system model and that ugly
hackery there.
This is a minimal fix for stable@, courtesy of James Morse.
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Merge tag 'edac_urgent_for_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC fix from Borislav Petkov:
"Fix ghes_edac UAF case triggered by KASAN and DEBUG_TEST_DRIVER_REMOVE.
Future pending rework of the ghes_edac instances registration will do
away with the single memory controller per system model and that ugly
hackery there.
This is a minimal fix for stable@, courtesy of James Morse"
* tag 'edac_urgent_for_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/ghes: Fix Use after free in ghes_edac remove path
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Merge tag 'for-5.4-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- fixes of error handling cleanup of metadata accounting with qgroups
enabled
- fix swapped values for qgroup tracepoints
- fix race when handling full sync flag
- don't start unused worker thread, functionality removed already
* tag 'for-5.4-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
Btrfs: check for the full sync flag while holding the inode lock during fsync
Btrfs: fix qgroup double free after failure to reserve metadata for delalloc
btrfs: tracepoints: Fix bad entry members of qgroup events
btrfs: tracepoints: Fix wrong parameter order for qgroup events
btrfs: qgroup: Always free PREALLOC META reserve in btrfs_delalloc_release_extents()
btrfs: don't needlessly create extent-refs kernel thread
btrfs: block-group: Fix a memory leak due to missing btrfs_put_block_group()
Btrfs: add missing extents release on file extent cluster relocation error
Pull operating performance points (OPP) framework fixes for v5.4
from Viresh Kumar:
"This contains:
- Patch to revert addition of regulator enable/disable in OPP core
(Marek).
- Remove incorrect lockdep assert (Viresh).
- Fix a kref counting issue (Viresh)."
* 'opp/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
opp: Reinitialize the list_kref before adding the static OPPs again
opp: core: Revert "add regulators enable and disable"
opp: of: drop incorrect lockdep_assert_held()
The list_kref reaches a count of 0 when all the static OPPs are removed,
for example when dev_pm_opp_of_cpumask_remove_table() is called, though
the actual OPP table may not get freed as it may still be referenced by
other parts of the kernel, like from a call to
dev_pm_opp_set_supported_hw(). And if we call
dev_pm_opp_of_cpumask_add_table() again at this point, we must
reinitialize the list_kref otherwise the kernel will hit a WARN() in
kref infrastructure for incrementing a kref with value 0.
Fixes: 11e1a1648298 ("opp: Don't decrement uninitialized list_kref")
Reported-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
If the "virtualize APIC accesses" VM-execution control is set in the
VMCS, the APIC virtualization hardware is triggered when a page walk
in VMX non-root mode terminates at a PTE wherein the address of the 4k
page frame matches the APIC-access address specified in the VMCS. On
hardware, the APIC-access address may be any valid 4k-aligned physical
address.
KVM's nVMX implementation enforces the additional constraint that the
APIC-access address specified in the vmcs12 must be backed by
a "struct page" in L1. If not, L0 will simply clear the "virtualize
APIC accesses" VM-execution control in the vmcs02.
The problem with this approach is that the L1 guest has arranged the
vmcs12 EPT tables--or shadow page tables, if the "enable EPT"
VM-execution control is clear in the vmcs12--so that the L2 guest
physical address(es)--or L2 guest linear address(es)--that reference
the L2 APIC map to the APIC-access address specified in the
vmcs12. Without the "virtualize APIC accesses" VM-execution control in
the vmcs02, the APIC accesses in the L2 guest will directly access the
APIC-access page in L1.
When there is no mapping whatsoever for the APIC-access address in L1,
the L2 VM just loses the intended APIC virtualization. However, when
the APIC-access address is mapped to an MMIO region in L1, the L2
guest gets direct access to the L1 MMIO device. For example, if the
APIC-access address specified in the vmcs12 is 0xfee00000, then L2
gets direct access to L1's APIC.
Since this vmcs12 configuration is something that KVM cannot
faithfully emulate, the appropriate response is to exit to userspace
with KVM_INTERNAL_ERROR_EMULATION.
Fixes: fe3ef05c7572 ("KVM: nVMX: Prepare vmcs02 from vmcs01 and vmcs12")
Reported-by: Dan Cross <dcross@google.com>
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Guest physical APIC ID may not equal to vcpu->vcpu_id in some case.
We may set the wrong physical id in avic_handle_ldr_update as we
always use vcpu->vcpu_id. Get physical APIC ID from vAPIC page
instead.
Export and use kvm_xapic_id here and in avic_handle_apic_id_update
as suggested by Vitaly.
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Scheduled policy update work may end up racing with the freeing of the
policy and unregistering the driver.
One possible race is as below, where the cpufreq_driver is unregistered,
but the scheduled work gets executed at later stage when, cpufreq_driver
is NULL (i.e. after freeing the policy and driver).
Unable to handle kernel NULL pointer dereference at virtual address 0000001c
pgd = (ptrval)
[0000001c] *pgd=80000080204003, *pmd=00000000
Internal error: Oops: 206 [#1] SMP THUMB2
Modules linked in:
CPU: 0 PID: 34 Comm: kworker/0:1 Not tainted 5.4.0-rc3-00006-g67f5a8081a4b #86
Hardware name: ARM-Versatile Express
Workqueue: events handle_update
PC is at cpufreq_set_policy+0x58/0x228
LR is at dev_pm_qos_read_value+0x77/0xac
Control: 70c5387d Table: 80203000 DAC: fffffffd
Process kworker/0:1 (pid: 34, stack limit = 0x(ptrval))
(cpufreq_set_policy) from (refresh_frequency_limits.part.24+0x37/0x48)
(refresh_frequency_limits.part.24) from (handle_update+0x2f/0x38)
(handle_update) from (process_one_work+0x16d/0x3cc)
(process_one_work) from (worker_thread+0xff/0x414)
(worker_thread) from (kthread+0xff/0x100)
(kthread) from (ret_from_fork+0x11/0x28)
Fixes: 67d874c3b2c6 ("cpufreq: Register notifiers with the PM QoS framework")
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
[ rjw: Cancel the work before dropping the QoS requests ]
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The recently introduced USB-audio descriptor validator had a stupid
copy&paste error that may lead to an unexpected overlook of too short
descriptors for processing and extension units. It's likely the cause
of the report triggered by syzkaller fuzzer. Let's fix it.
Fixes: 57f8770620e9 ("ALSA: usb-audio: More validations of descriptor units")
Reported-by: syzbot+0620f79a1978b1133fd7@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/s5hsgnkdbsl.wl-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
- Fix a bug in the XIVE code which can cause a host crash.
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Merge tag 'kvm-ppc-fixes-5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD
PPC KVM fix for 5.4
- Fix a bug in the XIVE code which can cause a host crash.
Special PMU edition:
- Fix cycle counter truncation
- Fix cycle counter overflow limit on pure 64bit system
- Allow chained events to be actually functional
- Correct sample period after overflow
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Merge tag 'kvmarm-fixes-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm fixes for 5.4, take #2
Special PMU edition:
- Fix cycle counter truncation
- Fix cycle counter overflow limit on pure 64bit system
- Allow chained events to be actually functional
- Correct sample period after overflow
After resetting the vCPU, the kvmclock MSR keeps the previous value but it is
not enabled. This can be confusing, so fix it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Use BUG_ON instead of a if condition followed by BUG.
Generated by: scripts/coccinelle/misc/bugon.cocci
Fixes: 4b526de50e39 ("KVM: x86: Check kvm_rebooting in kvm_spurious_fault()")
CC: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit bf653b78f960 ("KVM: vmx: Introduce handle_unexpected_vmexit
and handle WAITPKG vmexit") introduced specialized handling of
specific exit-reasons that should not be raised by CPU because
KVM configures VMCS such that they should never be raised.
However, since commit 7396d337cfad ("KVM: x86: Return to userspace
with internal error on unexpected exit reason"), VMX & SVM
exit handlers were modified to generically handle all unexpected
exit-reasons by returning to userspace with internal error.
Therefore, there is no need for specialized handling of specific
unexpected exit-reasons (This specialized handling also introduced
inconsistency for these exit-reasons to silently skip guest instruction
instead of return to userspace on internal-error).
Fixes: bf653b78f960 ("KVM: vmx: Introduce handle_unexpected_vmexit and handle WAITPKG vmexit")
Signed-off-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit 204c91eff798a ("KVM: selftests: do not blindly clobber registers in
guest asm") was intended to make test more gcc-proof, however, the result
is exactly the opposite: on newer gccs (e.g. 8.2.1) the test breaks with
==== Test Assertion Failure ====
x86_64/sync_regs_test.c:168: run->s.regs.regs.rbx == 0xBAD1DEA + 1
pid=14170 tid=14170 - Invalid argument
1 0x00000000004015b3: main at sync_regs_test.c:166 (discriminator 6)
2 0x00007f413fb66412: ?? ??:0
3 0x000000000040191d: _start at ??:?
rbx sync regs value incorrect 0x1.
Apparently, compile is still free to play games with registers even
when they have variables attached.
Re-write guest code with 'asm volatile' by embedding ucall there and
making sure rbx is preserved.
Fixes: 204c91eff798a ("KVM: selftests: do not blindly clobber registers in guest asm")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
vmx_dirty_log_test fails on AMD and this is no surprise as it is VMX
specific. Bail early when nested VMX is unsupported.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
vmx_* tests require VMX and three of them implement the same check. Move it
to vmx library.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
vmx_set_nested_state_test() checks if VMX is supported twice: in the very
beginning (and skips the whole test if it's not) and before doing
test_vmx_nested_state(). One should be enough.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Don't waste cycles to shrink/grow vCPU halt_poll_ns if host
side polling is disabled.
Acked-by: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When the RDPID instruction is supported on the host, enumerate it in
KVM_GET_SUPPORTED_CPUID.
Signed-off-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
- Handle multiple instances of Intel chips without complaining.
- Restore the Intel Strago DMI workaround
- Make the Armada 37xx handle pins over 32
- Fix the polarity of the LED group on Armada 37xx
- Fix an off-by-one bug in the NS2 driver
- Fix error path for iproc's platform_get_irq()
- Fix error path on the STMFX driver
- Fix a typo in the Berlin AS370 driver
- Fix up misc errors in the Aspeed 2600 BMC support
- Fix a stray SPDX tag
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Merge tag 'pinctrl-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Here is a bunch of pin control fixes. I was lagging behind on this
one, some fixes should have come in earlier, sorry about that.
Anyways here it is, pretty straight-forward fixes, the Strago fix
stand out as something serious affecting a lot of machines.
Summary:
- Handle multiple instances of Intel chips without complaining.
- Restore the Intel Strago DMI workaround
- Make the Armada 37xx handle pins over 32
- Fix the polarity of the LED group on Armada 37xx
- Fix an off-by-one bug in the NS2 driver
- Fix error path for iproc's platform_get_irq()
- Fix error path on the STMFX driver
- Fix a typo in the Berlin AS370 driver
- Fix up misc errors in the Aspeed 2600 BMC support
- Fix a stray SPDX tag"
* tag 'pinctrl-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: aspeed-g6: Rename SD3 to EMMC and rework pin groups
pinctrl: aspeed-g6: Fix UART13 group pinmux
pinctrl: aspeed-g6: Make SIG_DESC_CLEAR() behave intuitively
pinctrl: aspeed-g6: Fix I3C3/I3C4 pinmux configuration
pinctrl: aspeed-g6: Fix I2C14 SDA description
pinctrl: aspeed-g6: Sort pins for sanity
dt-bindings: pinctrl: aspeed-g6: Rework SD3 function and groups
pinctrl: berlin: as370: fix a typo s/spififib/spdifib
pinctrl: armada-37xx: swap polarity on LED group
pinctrl: stmfx: fix null pointer on remove
pinctrl: iproc: allow for error from platform_get_irq()
pinctrl: ns2: Fix off by one bugs in ns2_pinmux_enable()
pinctrl: bcm-iproc: Use SPDX header
pinctrl: armada-37xx: fix control of pins 32 and up
pinctrl: cherryview: restore Strago DMI workaround for all versions
pinctrl: intel: Allocate IRQ chip dynamic
Currenly haltpoll isn't aware of the 'idle=' override, the priority is
'idle=poll' > haltpoll > 'idle=halt'. When 'idle=poll' is used, cpuidle
driver is bypassed but current_driver in sys still shows 'haltpoll'.
When 'idle=halt' is used, haltpoll takes precedence and makes
'idle=halt' have no effect.
Add a check to prevent the haltpoll driver from loading if 'idle=' is
present.
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Co-developed-by: Joao Martins <joao.m.martins@oracle.com>
[ rjw: Subject ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
We change the locking in this function and forgot to update this error
path so we are accidentally still holding the "dev->lockdep_mutex".
Fixes: 87a30e1f05d7 ("driver-core, libnvdimm: Let device subsystems add local lockdep coverage")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Cc: 5.3+ <stable@vger.kernel.org> # 5.3+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
r0-r3 & r12 registers are saved & restored, before & after svc
respectively. Intention was to preserve those registers across thread to
handler mode switch.
On v7-M, hardware saves the register context upon exception in AAPCS
complaint way. Restoring r0-r3 & r12 is done from stack location where
hardware saves it, not from the location on stack where these registers
were saved.
To clarify, on stm32f429 discovery board:
1. before svc, sp - 0x90009ff8
2. r0-r3,r12 saved to 0x90009ff8 - 0x9000a00b
3. upon svc, h/w decrements sp by 32 & pushes registers onto stack
4. after svc, sp - 0x90009fd8
5. r0-r3,r12 restored from 0x90009fd8 - 0x90009feb
Above means r0-r3,r12 is not restored from the location where they are
saved, but since hardware pushes the registers onto stack, the registers
are restored correctly.
Note that during register saving to stack (step 2), it goes past
0x9000a000. And it seems, based on objdump, there are global symbols
residing there, and it perhaps can cause issues on a non-XIP Kernel
(on XIP, data section is setup later).
Based on the analysis above, manually saving registers onto stack is at
best no-op and at worst can cause data section corruption. Hence remove
storing of registers onto stack before svc.
Fixes: b70cd406d7fe ("ARM: 8671/1: V7M: Preserve registers across switch from Thread to Handler mode")
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Acked-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Since ceeeb99cd821 we no longer abuse the DMA_CTRL_ACK flag for custom
driver use and introduced the MXS_DMA_CTRL_WAIT4END instead. We have not
changed all users to this flag though. This patch fixes it for the
mxs-mmc driver.
Fixes: ceeeb99cd821 ("dmaengine: mxs: rename custom flag")
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Fabio Estevam <festevam@gmail.com>
Reported-by: Bruno Thomsen <bruno.thomsen@gmail.com>
Tested-by: Bruno Thomsen <bruno.thomsen@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Fix both the string and the struct member being printed.
Changes since v1:
- Now with a bonus grammar fix, too.
Fixes: 264b9436d23b ("drm/komeda: Enable writeback split support")
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190930122231.33029-1-mihail.atanassov@arm.com
