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| author | Kim Phillips <kim.phillips@amd.com> | 2023-01-24 19:33:15 +0300 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2023-01-25 15:06:13 +0300 |
| commit | 84168ae786f8a15a7eb0f79d34f20b8d261ce2f5 (patch) | |
| tree | c1df51afc3793a3f9ee00bfefe4444a3c47ddc8b /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | a9dc9ec5a1fafc3d2fe7a7b594eefaeaccf89a6b (diff) | |
| download | linux-84168ae786f8a15a7eb0f79d34f20b8d261ce2f5.tar.xz | |
x86/cpu, kvm: Move X86_FEATURE_LFENCE_RDTSC to its native leaf
The LFENCE always serializing feature bit was defined as scattered
LFENCE_RDTSC and its native leaf bit position open-coded for KVM. Add
it to its newly added CPUID leaf 0x80000021 EAX proper. With
LFENCE_RDTSC in its proper place, the kernel's set_cpu_cap() will
effectively synthesize the feature for KVM going forward.
Also, DE_CFG[1] doesn't need to be set on such CPUs anymore.
[ bp: Massage and merge diff from Sean. ]
Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20230124163319.2277355-5-kim.phillips@amd.com
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions