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authorLinus Torvalds <torvalds@linux-foundation.org>2022-04-03 12:15:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-04-03 12:15:47 -0700
commit8b5656bc4e3707da642cb4a9126f4849fb518423 (patch)
treea06dbe9238cf9aecb70438f08b870d456b7788c4 /arch/sh/Kconfig.cpu
parente235f4192f4f5689ac7aa8a7a320fe157f1bb803 (diff)
parentd6d6d50f1e801a790a242c80eeda261e36c43b7b (diff)
downloadlinux-8b5656bc4e3707da642cb4a9126f4849fb518423.tar.bz2
Merge tag 'x86-urgent-2022-04-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner: "A set of x86 fixes and updates: - Make the prctl() for enabling dynamic XSTATE components correct so it adds the newly requested feature to the permission bitmap instead of overwriting it. Add a selftest which validates that. - Unroll string MMIO for encrypted SEV guests as the hypervisor cannot emulate it. - Handle supervisor states correctly in the FPU/XSTATE code so it takes the feature set of the fpstate buffer into account. The feature sets can differ between host and guest buffers. Guest buffers do not contain supervisor states. So far this was not an issue, but with enabling PASID it needs to be handled in the buffer offset calculation and in the permission bitmaps. - Avoid a gazillion of repeated CPUID invocations in by caching the values early in the FPU/XSTATE code. - Enable CONFIG_WERROR in x86 defconfig. - Make the X86 defconfigs more useful by adapting them to Y2022 reality" * tag 'x86-urgent-2022-04-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/fpu/xstate: Consolidate size calculations x86/fpu/xstate: Handle supervisor states in XSTATE permissions x86/fpu/xsave: Handle compacted offsets correctly with supervisor states x86/fpu: Cache xfeature flags from CPUID x86/fpu/xsave: Initialize offset/size cache early x86/fpu: Remove unused supervisor only offsets x86/fpu: Remove redundant XCOMP_BV initialization x86/sev: Unroll string mmio with CC_ATTR_GUEST_UNROLL_STRING_IO x86/config: Make the x86 defconfigs a bit more usable x86/defconfig: Enable WERROR selftests/x86/amx: Update the ARCH_REQ_XCOMP_PERM test x86/fpu/xstate: Fix the ARCH_REQ_XCOMP_PERM implementation
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