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| author | Sean Christopherson <seanjc@google.com> | 2023-07-29 04:15:50 +0300 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-08-04 03:16:28 +0300 |
| commit | c0dc39bd2c584879748dfd1321f8541d1cbeb9b8 (patch) | |
| tree | 32aa9d714bb09aca4fb61f595409a7a809aff077 /arch/x86/kvm/svm/svm.h | |
| parent | 0c94e2468491cbf0754f49a5136ab51294a96b69 (diff) | |
| download | linux-c0dc39bd2c584879748dfd1321f8541d1cbeb9b8.tar.xz | |
KVM: nSVM: Use the "outer" helper for writing multiplier to MSR_AMD64_TSC_RATIO
When emulating nested SVM transitions, use the outer helper for writing
the TSC multiplier for L2. Using the inner helper only for one-off cases,
i.e. for paths where KVM is NOT emulating or modifying vCPU state, will
allow for multiple cleanups:
- Explicitly disabling preemption only in the outer helper
- Getting the multiplier from the vCPU field in the outer helper
- Skipping the WRMSR in the outer helper if guest state isn't loaded
Opportunistically delete an extra newline.
No functional change intended.
Link: https://lore.kernel.org/r/20230729011608.1065019-4-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/kvm/svm/svm.h')
| -rw-r--r-- | arch/x86/kvm/svm/svm.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h index 18af7e712a5a..7132c0a04817 100644 --- a/arch/x86/kvm/svm/svm.h +++ b/arch/x86/kvm/svm/svm.h @@ -658,7 +658,7 @@ int nested_svm_check_exception(struct vcpu_svm *svm, unsigned nr, bool has_error_code, u32 error_code); int nested_svm_exit_special(struct vcpu_svm *svm); void nested_svm_update_tsc_ratio_msr(struct kvm_vcpu *vcpu); -void __svm_write_tsc_multiplier(u64 multiplier); +void svm_write_tsc_multiplier(struct kvm_vcpu *vcpu, u64 multiplier); void nested_copy_vmcb_control_to_cache(struct vcpu_svm *svm, struct vmcb_control_area *control); void nested_copy_vmcb_save_to_cache(struct vcpu_svm *svm, |