diff options
| author | Maxim Levitsky <mlevitsk@redhat.com> | 2022-02-23 14:56:49 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-02-24 21:04:47 +0300 |
| commit | e910a53fb4f20aa012e46371ffb4c32c8da259b4 (patch) | |
| tree | 4ff0d732247af754aa78461f9206dd3afd157943 /include/uapi | |
| parent | 6f3c1fc53d86d580d8d6d749c4af23705e4f6f79 (diff) | |
| download | linux-e910a53fb4f20aa012e46371ffb4c32c8da259b4.tar.xz | |
KVM: x86: nSVM: disallow userspace setting of MSR_AMD64_TSC_RATIO to non default value when tsc scaling disabled
If nested tsc scaling is disabled, MSR_AMD64_TSC_RATIO should
never have non default value.
Due to way nested tsc scaling support was implmented in qemu,
it would set this msr to 0 when nested tsc scaling was disabled.
Ignore that value for now, as it causes no harm.
Fixes: 5228eb96a487 ("KVM: x86: nSVM: implement nested TSC scaling")
Cc: stable@vger.kernel.org
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20220223115649.319134-1-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/uapi')
0 files changed, 0 insertions, 0 deletions