Messages in this thread | | | From | Borislav Petkov <> | Subject | [PATCH 0/5] x86/sev: Fix SNP host late disable | Date | Wed, 27 Mar 2024 16:43:12 +0100 |
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From: "Borislav Petkov (AMD)" <bp@alien8.de>
Hi,
the intention to track SNP host status with the CPU feature bit X86_FEATURE_SEV_SNP was all fine and dandy but that can't work if stuff needs to be disabled late, after alternatives patching - see patch 5.
Therefore, convert the SNP status tracking to a cc_platform*() bit.
The first two are long overdue cleanups.
If no objections, 3-5 should go in now so that 6.9 releases fixed.
Thx.
Borislav Petkov (AMD) (5): x86/alternatives: Remove a superfluous newline in _static_cpu_has() x86/alternatives: Catch late X86_FEATURE modifiers x86/kvm/Kconfig: Have KVM_AMD_SEV select ARCH_HAS_CC_PLATFORM x86/cc: Add cc_platform_set/_clear() helpers x86/CPU/AMD: Track SNP host status with cc_platform_*()
arch/x86/coco/core.c | 52 ++++++++++++++++++++++++++++++ arch/x86/include/asm/cpufeature.h | 11 ++++--- arch/x86/include/asm/sev.h | 4 +-- arch/x86/kernel/cpu/amd.c | 38 +++++++++++++--------- arch/x86/kernel/cpu/cpuid-deps.c | 3 ++ arch/x86/kernel/cpu/mtrr/generic.c | 2 +- arch/x86/kernel/sev.c | 10 ------ arch/x86/kvm/Kconfig | 1 + arch/x86/kvm/svm/sev.c | 2 +- arch/x86/virt/svm/sev.c | 26 ++++++++++----- drivers/crypto/ccp/sev-dev.c | 2 +- drivers/iommu/amd/init.c | 4 ++- include/linux/cc_platform.h | 12 +++++++ 13 files changed, 124 insertions(+), 43 deletions(-)
-- 2.43.0
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