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| author | Tom Lendacky <thomas.lendacky@amd.com> | 2020-12-10 11:09:40 -0600 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-12-14 11:09:32 -0500 |
| commit | add5e2f045414523aa6dc29d69b21e8f82e5ffb8 (patch) | |
| tree | a4d2d84e7e541bb657e0b4d6da3849615a2e5a83 /arch/x86/include | |
| parent | 0f60bde15ee11d03b6143f567cf840d30bf1b588 (diff) | |
| download | linux-add5e2f045414523aa6dc29d69b21e8f82e5ffb8.tar.gz linux-add5e2f045414523aa6dc29d69b21e8f82e5ffb8.tar.bz2 linux-add5e2f045414523aa6dc29d69b21e8f82e5ffb8.zip | |
KVM: SVM: Add support for the SEV-ES VMSA
Allocate a page during vCPU creation to be used as the encrypted VM save
area (VMSA) for the SEV-ES guest. Provide a flag in the kvm_vcpu_arch
structure that indicates whether the guest state is protected.
When freeing a VMSA page that has been encrypted, the cache contents must
be flushed using the MSR_AMD64_VM_PAGE_FLUSH before freeing the page.
[ i386 build warnings ]
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Message-Id: <fde272b17eec804f3b9db18c131262fe074015c5.1607620209.git.thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index f002cdb13a0b..8cf6b0493d49 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -805,6 +805,9 @@ struct kvm_vcpu_arch { */ bool enforce; } pv_cpuid; + + /* Protected Guests */ + bool guest_state_protected; }; struct kvm_lpage_info { |