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| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2019-04-16 13:32:46 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-04-30 21:32:16 +0200 |
| commit | f99279825ee30b829da9d3b7cf0b9d1b9b2596e6 (patch) | |
| tree | 450839b9051f0f762f579d3cd75ae9c406af71b3 /arch/x86/kvm/vmx/vmx.c | |
| parent | f1ba5cfbe47a90f801598a908fd2157bbab2ce1a (diff) | |
| download | lwn-f99279825ee30b829da9d3b7cf0b9d1b9b2596e6.tar.gz lwn-f99279825ee30b829da9d3b7cf0b9d1b9b2596e6.zip | |
KVM: lapic: Refactor ->set_hv_timer to use an explicit expired param
Refactor kvm_x86_ops->set_hv_timer to use an explicit parameter for
stating that the timer has expired. Overloading the return value is
unnecessarily clever, e.g. can lead to confusion over the proper return
value from start_hv_timer() when r==1.
Cc: Wanpeng Li <wanpengli@tencent.com>
Cc: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
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 | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 3fe2020e3bc4..60e2f0afa4d6 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -7041,7 +7041,8 @@ static inline int u64_shl_div_u64(u64 a, unsigned int shift, return 0; } -static int vmx_set_hv_timer(struct kvm_vcpu *vcpu, u64 guest_deadline_tsc) +static int vmx_set_hv_timer(struct kvm_vcpu *vcpu, u64 guest_deadline_tsc, + bool *expired) { struct vcpu_vmx *vmx; u64 tscl, guest_tscl, delta_tsc, lapic_timer_advance_cycles; @@ -7078,7 +7079,8 @@ static int vmx_set_hv_timer(struct kvm_vcpu *vcpu, u64 guest_deadline_tsc) return -ERANGE; vmx->hv_deadline_tsc = tscl + delta_tsc; - return delta_tsc == 0; + *expired = !delta_tsc; + return 0; } static void vmx_cancel_hv_timer(struct kvm_vcpu *vcpu) |