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| author |   Cathy Zhang <cathy.zhang@intel.com> | 2020-08-25 08:47:58 +0800 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2020-08-30 21:34:10 +0200 |
| commit | 61aa9a0a5eae2100c171698bffabde8d5e9f694d (patch) | |
| tree | 9b7228df5d103981911696400d5a9385ed197023 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | x86/cpufeatures: Enumerate TSX suspend load address tracking instructions (diff) | |
| download | wireguard-linux-61aa9a0a5eae2100c171698bffabde8d5e9f694d.tar.xz wireguard-linux-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 <cathy.zhang@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/1598316478-23337-3-git-send-email-cathy.zhang@intel.com
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions