diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2021-11-26 07:00:15 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-12-08 04:25:03 -0500 |
| commit | 41e68b6964ebf20082af55ad1394523cf86c4c6a (patch) | |
| tree | 88cf9d35a980b7fbe405ffb990214171ea4dd276 /arch/x86/kvm/vmx/vmx.c | |
| parent | c62c7bd4f95b8f2a28098c4139a369670998aef2 (diff) | |
| download | linux-41e68b6964ebf20082af55ad1394523cf86c4c6a.tar.gz linux-41e68b6964ebf20082af55ad1394523cf86c4c6a.tar.bz2 linux-41e68b6964ebf20082af55ad1394523cf86c4c6a.zip | |
KVM: vmx, svm: clean up mass updates to regs_avail/regs_dirty bits
Document the meaning of the three combinations of regs_avail and
regs_dirty. Update regs_dirty just after writeback instead of
doing it later after vmexit. After vmexit, instead, we clear the
regs_avail bits corresponding to lazily-loaded registers.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/vmx/vmx.c')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index ffe45435b77e..c65ff62e11f5 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -6649,6 +6649,7 @@ static fastpath_t vmx_vcpu_run(struct kvm_vcpu *vcpu) vmcs_writel(GUEST_RSP, vcpu->arch.regs[VCPU_REGS_RSP]); if (kvm_register_is_dirty(vcpu, VCPU_REGS_RIP)) vmcs_writel(GUEST_RIP, vcpu->arch.regs[VCPU_REGS_RIP]); + vcpu->arch.regs_dirty = 0; cr3 = __get_current_cr3_fast(); if (unlikely(cr3 != vmx->loaded_vmcs->host_state.cr3)) { @@ -6743,7 +6744,7 @@ static fastpath_t vmx_vcpu_run(struct kvm_vcpu *vcpu) loadsegment(es, __USER_DS); #endif - vmx_register_cache_reset(vcpu); + vcpu->arch.regs_avail &= ~VMX_REGS_LAZY_LOAD_SET; pt_guest_exit(vmx); |