diff options
| author | Cathy Zhang <[email protected]> | 2020-08-25 00:47:58 +0000 |
|---|---|---|
| committer | Borislav Petkov <[email protected]> | 2020-08-30 19:34:10 +0000 |
| commit | 61aa9a0a5eae2100c171698bffabde8d5e9f694d (patch) | |
| tree | 9b7228df5d103981911696400d5a9385ed197023 /drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | |
| parent | x86/cpufeatures: Enumerate TSX suspend load address tracking instructions (diff) | |
| download | kernel-61aa9a0a5eae2100c171698bffabde8d5e9f694d.tar.gz kernel-61aa9a0a5eae2100c171698bffabde8d5e9f694d.zip | |
x86/kvm: Expose TSX Suspend Load Tracking feature
TSX suspend load tracking instruction is supported by the Intel uarch
Sapphire Rapids. It aims to give a way to choose which memory accesses
do not need to be tracked in the TSX read set. It's availability is
indicated as CPUID.(EAX=7,ECX=0):EDX[bit 16].
Expose TSX Suspend Load Address Tracking feature in KVM CPUID, so KVM
could pass this information to guests and they can make use of this
feature accordingly.
Signed-off-by: Cathy Zhang <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Reviewed-by: Tony Luck <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c')
0 files changed, 0 insertions, 0 deletions