diff options
| author | Babu Moger <babu.moger@amd.com> | 2022-04-19 15:53:52 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-04-29 12:49:15 -0400 |
| commit | f30903394eb62316dddea8801b357f5cec4df187 (patch) | |
| tree | 92aa1ba94bfaa65a7cd49259bc38732ef348e648 /scripts/dtc | |
| parent | 71d7c575a673d42ad7175ad5fc27c85c80330311 (diff) | |
x86/cpufeatures: Add virtual TSC_AUX feature bit
The TSC_AUX Virtualization feature allows AMD SEV-ES guests to securely use
TSC_AUX (auxiliary time stamp counter data) MSR in RDTSCP and RDPID
instructions.
The TSC_AUX MSR is typically initialized to APIC ID or another unique
identifier so that software can quickly associate returned TSC value
with the logical processor.
Add the feature bit and also include it in the kvm for detection.
Signed-off-by: Babu Moger <babu.moger@amd.com>
Acked-by: Borislav Petkov <bp@suse.de>
Message-Id: <165040157111.1399644.6123821125319995316.stgit@bmoger-ubuntu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'scripts/dtc')
0 files changed, 0 insertions, 0 deletions