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894909f95a
mirror_ubuntu-kernels/arch/x86/kernel/cpu
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Linus Torvalds 894909f95a - Do not hold fpregs lock when inheriting FPU permissions because the 
fpregs lock disables preemption on RT but fpu_inherit_perms() does
 spin_lock_irq(), which, on RT, uses rtmutexes and they need to be
 preemptible.
 
 - Check the page offset and the length of the data supplied by userspace
 for overflow when specifying a set of pages to add to an SGX enclave
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Merge tag 'x86_urgent_for_v6.1_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - Do not hold fpregs lock when inheriting FPU permissions because the
   fpregs lock disables preemption on RT but fpu_inherit_perms() does
   spin_lock_irq(), which, on RT, uses rtmutexes and they need to be
   preemptible.

 - Check the page offset and the length of the data supplied by
   userspace for overflow when specifying a set of pages to add to an
   SGX enclave

* tag 'x86_urgent_for_v6.1_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu: Drop fpregs lock before inheriting FPU permissions
  x86/sgx: Add overflow check in sgx_validate_offset_length()
2022-11-20 10:47:39 -08:00
..
mce x86/mce: Retrieve poison range from hardware 2022-08-29 09:33:42 +02:00
microcode x86/microcode/AMD: Apply the patch early on every logical thread 2022-10-18 11:03:27 +02:00
mtrr x86/mtrr: Replace deprecated CPU-hotplug functions. 2021-08-10 14:46:27 +02:00
resctrl x86/resctrl: Fix min_cbm_bits for AMD 2022-10-18 20:25:16 +02:00
sgx x86/sgx: Add overflow check in sgx_validate_offset_length() 2022-11-08 20:34:05 +01:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
acrn.c x86/acrn: Set up timekeeping 2022-08-04 11:11:59 +02:00
amd.c x86/cpu: Restore AMD's DE_CFG MSR after resume 2022-11-15 10:15:58 -08:00
aperfmperf.c x86/aperfmperf: Integrate the fallback code from show_cpuinfo() 2022-04-27 20:22:20 +02:00
bugs.c x86, KVM: remove unnecessary argument to x86_virt_spec_ctrl and callers 2022-11-09 12:26:51 -05:00
cacheinfo.c x86/cacheinfo: move shared cache map definitions 2022-07-17 17:31:40 -07:00
centaur.c x86/cpu/centaur: Add Centaur family >=7 CPUs initialization support 2020-09-11 10:53:19 +02:00
common.c x86/bugs: Add "unknown" reporting for MMIO Stale Data 2022-08-18 15:35:22 +02:00
cpu.h x86/cpu/amd: Add Spectral Chicken 2022-06-27 10:34:00 +02:00
cpuid-deps.c x86/fpu: Optimize out sigframe xfeatures when in init state 2021-11-03 22:42:35 +01:00
cyrix.c x86/cyrix: include header linux/isa-dma.h 2022-07-26 14:03:12 -05:00
feat_ctl.c x86/cpu: Include the header of init_ia32_feat_ctl()'s prototype 2022-09-26 17:06:27 +02:00
hygon.c x86/cpu: Restore AMD's DE_CFG MSR after resume 2022-11-15 10:15:58 -08:00
hypervisor.c x86/paravirt: Remove const mark from x86_hyper_xen_hvm variable 2019-07-17 08:09:59 +02:00
intel_epb.c x86: intel_epb: Allow model specific normal EPB value 2022-01-04 16:37:23 +01:00
intel_pconfig.c
intel.c x86/bus_lock: Don't assume the init value of DEBUGCTLMSR.BUS_LOCK_DETECT to be zero 2022-08-02 13:42:00 +02:00
Makefile x86: kmsan: disable instrumentation of unsupported code 2022-10-03 14:03:24 -07:00
match.c x86/cpu: Add a steppings field to struct x86_cpu_id 2020-04-20 12:19:21 +02:00
mkcapflags.sh x86/cpu: Print VMX flags in /proc/cpuinfo using VMX_FEATURES_* 2020-01-13 18:36:02 +01:00
mshyperv.c hyperv-next for 5.19 2022-05-28 11:39:01 -07:00
perfctr-watchdog.c x86/nmi_watchdog: Fix old-style NMI watchdog regression on old Intel CPUs 2021-06-10 10:04:40 +02:00
powerflags.c
proc.c x86/aperfmperf: Integrate the fallback code from show_cpuinfo() 2022-04-27 20:22:20 +02:00
rdrand.c x86/rdrand: Remove "nordrand" flag in favor of "random.trust_cpu" 2022-07-18 15:04:04 +02:00
scattered.c x86/cpufeatures: Add LbrExtV2 feature bit 2022-08-27 00:05:42 +02:00
topology.c x86/topology: Fix duplicated core ID within a package 2022-10-17 11:58:52 -07:00
transmeta.c
tsx.c x86/tsx: Disable TSX development mode at boot 2022-04-11 09:58:40 +02:00
umc.c
umwait.c KVM: VMX: Stop context switching MSR_IA32_UMWAIT_CONTROL 2020-06-22 20:54:57 -04:00
vmware.c x86/vmware: Use BIT() macro for shifting 2022-06-22 11:23:14 +02:00
vortex.c x86/CPU: Add support for Vortex CPUs 2021-10-21 15:49:07 +02:00
zhaoxin.c x86/cpu: Reinitialize IA32_FEAT_CTL MSR on BSP during wakeup 2020-06-15 14:18:37 +02:00