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| author | Radim Krčmář <rkrcmar@redhat.com> | 2016-07-15 14:38:36 +0200 |
|---|---|---|
| committer | Radim Krčmář <rkrcmar@redhat.com> | 2016-07-16 15:26:54 +0200 |
| commit | 6a907cd0ad31fce30b7a7416576410a7de7c8933 (patch) | |
| tree | edd5c641dc154e14848bc7d284fcd07492decc6e /arch/x86/Kconfig.debug | |
| parent | KVM: SVM: do not set MSR_TSC_AUX on 32-bit builds (diff) | |
| download | linux-6a907cd0ad31fce30b7a7416576410a7de7c8933.tar.xz linux-6a907cd0ad31fce30b7a7416576410a7de7c8933.zip | |
Revert "KVM: SVM: fix trashing of MSR_TSC_AUX"
This reverts commit 9770404a0061ec46dec6e15c4b07731ce2e2d7bb.
The reverted patch is not needed as only userspace uses RDTSCP and
MSR_TSC_AUX is in host_save_user_msrs[] and therefore properly saved in
svm_vcpu_load() and restored in svm_vcpu_put() before every switch to
userspace.
The reverted patch did not allow the kernel to use RDTSCP in the future,
because of missed trashing in svm_set_msr() and 64-bit ifdef.
This reverts commit 2b23c3a6e3eb2fba77eb35fdfa3d71a9aa3f33b7.
2b23c3a6e3eb ("KVM: SVM: do not set MSR_TSC_AUX on 32-bit builds") is a
build fix for 9770404a0061 and reverting them separately would only
break more bisections.
Cc: stable@vger.kernel.org
Diffstat (limited to 'arch/x86/Kconfig.debug')
0 files changed, 0 insertions, 0 deletions