| Message ID | 20210925005528.1145584-9-seanjc@google.com |
|---|---|
| State | New |
| Headers | show |
| Series | KVM: Halt-polling fixes, cleanups and a new stat | expand |
On Fri, Sep 24, 2021 at 05:55:22PM -0700, Sean Christopherson wrote: > Rename a variety of HLT-related helpers to free up the function name > "kvm_vcpu_halt" for future use in generic KVM code, e.g. to differentiate > between "block" and "halt". > > No functional change intended. > > Signed-off-by: Sean Christopherson <seanjc@google.com> Reviewed-by: David Matlack <dmatlack@google.com> > --- > arch/x86/include/asm/kvm_host.h | 2 +- > arch/x86/kvm/vmx/nested.c | 2 +- > arch/x86/kvm/vmx/vmx.c | 4 ++-- > arch/x86/kvm/x86.c | 13 +++++++------ > 4 files changed, 11 insertions(+), 10 deletions(-) > > diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h > index 4e8c21083bdb..cfebef10b89c 100644 > --- a/arch/x86/include/asm/kvm_host.h > +++ b/arch/x86/include/asm/kvm_host.h > @@ -1679,7 +1679,7 @@ int kvm_emulate_monitor(struct kvm_vcpu *vcpu); > int kvm_fast_pio(struct kvm_vcpu *vcpu, int size, unsigned short port, int in); > int kvm_emulate_cpuid(struct kvm_vcpu *vcpu); > int kvm_emulate_halt(struct kvm_vcpu *vcpu); > -int kvm_vcpu_halt(struct kvm_vcpu *vcpu); > +int kvm_emulate_halt_noskip(struct kvm_vcpu *vcpu); > int kvm_emulate_ap_reset_hold(struct kvm_vcpu *vcpu); > int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu); > > diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c > index eedcebf58004..f689e463b678 100644 > --- a/arch/x86/kvm/vmx/nested.c > +++ b/arch/x86/kvm/vmx/nested.c > @@ -3618,7 +3618,7 @@ static int nested_vmx_run(struct kvm_vcpu *vcpu, bool launch) > !(nested_cpu_has(vmcs12, CPU_BASED_INTR_WINDOW_EXITING) && > (vmcs12->guest_rflags & X86_EFLAGS_IF))) { > vmx->nested.nested_run_pending = 0; > - return kvm_vcpu_halt(vcpu); > + return kvm_emulate_halt_noskip(vcpu); > } > break; > case GUEST_ACTIVITY_WAIT_SIPI: > diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c > index d118daed0530..858f5f1f1273 100644 > --- a/arch/x86/kvm/vmx/vmx.c > +++ b/arch/x86/kvm/vmx/vmx.c > @@ -4740,7 +4740,7 @@ static int handle_rmode_exception(struct kvm_vcpu *vcpu, > if (kvm_emulate_instruction(vcpu, 0)) { > if (vcpu->arch.halt_request) { > vcpu->arch.halt_request = 0; > - return kvm_vcpu_halt(vcpu); > + return kvm_emulate_halt_noskip(vcpu); > } > return 1; > } > @@ -5414,7 +5414,7 @@ static int handle_invalid_guest_state(struct kvm_vcpu *vcpu) > > if (vcpu->arch.halt_request) { > vcpu->arch.halt_request = 0; > - return kvm_vcpu_halt(vcpu); > + return kvm_emulate_halt_noskip(vcpu); > } > > /* > diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c > index b0c21d42f453..eade8a2bdccf 100644 > --- a/arch/x86/kvm/x86.c > +++ b/arch/x86/kvm/x86.c > @@ -8643,7 +8643,7 @@ void kvm_arch_exit(void) > #endif > } > > -static int __kvm_vcpu_halt(struct kvm_vcpu *vcpu, int state, int reason) > +static int __kvm_emulate_halt(struct kvm_vcpu *vcpu, int state, int reason) > { > ++vcpu->stat.halt_exits; > if (lapic_in_kernel(vcpu)) { > @@ -8655,11 +8655,11 @@ static int __kvm_vcpu_halt(struct kvm_vcpu *vcpu, int state, int reason) > } > } > > -int kvm_vcpu_halt(struct kvm_vcpu *vcpu) > +int kvm_emulate_halt_noskip(struct kvm_vcpu *vcpu) > { > - return __kvm_vcpu_halt(vcpu, KVM_MP_STATE_HALTED, KVM_EXIT_HLT); > + return __kvm_emulate_halt(vcpu, KVM_MP_STATE_HALTED, KVM_EXIT_HLT); > } > -EXPORT_SYMBOL_GPL(kvm_vcpu_halt); > +EXPORT_SYMBOL_GPL(kvm_emulate_halt_noskip); > > int kvm_emulate_halt(struct kvm_vcpu *vcpu) > { > @@ -8668,7 +8668,7 @@ int kvm_emulate_halt(struct kvm_vcpu *vcpu) > * TODO: we might be squashing a GUESTDBG_SINGLESTEP-triggered > * KVM_EXIT_DEBUG here. > */ > - return kvm_vcpu_halt(vcpu) && ret; > + return kvm_emulate_halt_noskip(vcpu) && ret; > } > EXPORT_SYMBOL_GPL(kvm_emulate_halt); > > @@ -8676,7 +8676,8 @@ int kvm_emulate_ap_reset_hold(struct kvm_vcpu *vcpu) > { > int ret = kvm_skip_emulated_instruction(vcpu); > > - return __kvm_vcpu_halt(vcpu, KVM_MP_STATE_AP_RESET_HOLD, KVM_EXIT_AP_RESET_HOLD) && ret; > + return __kvm_emulate_halt(vcpu, KVM_MP_STATE_AP_RESET_HOLD, > + KVM_EXIT_AP_RESET_HOLD) && ret; > } > EXPORT_SYMBOL_GPL(kvm_emulate_ap_reset_hold); > > -- > 2.33.0.685.g46640cef36-goog >
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 4e8c21083bdb..cfebef10b89c 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1679,7 +1679,7 @@ int kvm_emulate_monitor(struct kvm_vcpu *vcpu); int kvm_fast_pio(struct kvm_vcpu *vcpu, int size, unsigned short port, int in); int kvm_emulate_cpuid(struct kvm_vcpu *vcpu); int kvm_emulate_halt(struct kvm_vcpu *vcpu); -int kvm_vcpu_halt(struct kvm_vcpu *vcpu); +int kvm_emulate_halt_noskip(struct kvm_vcpu *vcpu); int kvm_emulate_ap_reset_hold(struct kvm_vcpu *vcpu); int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu); diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index eedcebf58004..f689e463b678 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -3618,7 +3618,7 @@ static int nested_vmx_run(struct kvm_vcpu *vcpu, bool launch) !(nested_cpu_has(vmcs12, CPU_BASED_INTR_WINDOW_EXITING) && (vmcs12->guest_rflags & X86_EFLAGS_IF))) { vmx->nested.nested_run_pending = 0; - return kvm_vcpu_halt(vcpu); + return kvm_emulate_halt_noskip(vcpu); } break; case GUEST_ACTIVITY_WAIT_SIPI: diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index d118daed0530..858f5f1f1273 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -4740,7 +4740,7 @@ static int handle_rmode_exception(struct kvm_vcpu *vcpu, if (kvm_emulate_instruction(vcpu, 0)) { if (vcpu->arch.halt_request) { vcpu->arch.halt_request = 0; - return kvm_vcpu_halt(vcpu); + return kvm_emulate_halt_noskip(vcpu); } return 1; } @@ -5414,7 +5414,7 @@ static int handle_invalid_guest_state(struct kvm_vcpu *vcpu) if (vcpu->arch.halt_request) { vcpu->arch.halt_request = 0; - return kvm_vcpu_halt(vcpu); + return kvm_emulate_halt_noskip(vcpu); } /* diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index b0c21d42f453..eade8a2bdccf 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -8643,7 +8643,7 @@ void kvm_arch_exit(void) #endif } -static int __kvm_vcpu_halt(struct kvm_vcpu *vcpu, int state, int reason) +static int __kvm_emulate_halt(struct kvm_vcpu *vcpu, int state, int reason) { ++vcpu->stat.halt_exits; if (lapic_in_kernel(vcpu)) { @@ -8655,11 +8655,11 @@ static int __kvm_vcpu_halt(struct kvm_vcpu *vcpu, int state, int reason) } } -int kvm_vcpu_halt(struct kvm_vcpu *vcpu) +int kvm_emulate_halt_noskip(struct kvm_vcpu *vcpu) { - return __kvm_vcpu_halt(vcpu, KVM_MP_STATE_HALTED, KVM_EXIT_HLT); + return __kvm_emulate_halt(vcpu, KVM_MP_STATE_HALTED, KVM_EXIT_HLT); } -EXPORT_SYMBOL_GPL(kvm_vcpu_halt); +EXPORT_SYMBOL_GPL(kvm_emulate_halt_noskip); int kvm_emulate_halt(struct kvm_vcpu *vcpu) { @@ -8668,7 +8668,7 @@ int kvm_emulate_halt(struct kvm_vcpu *vcpu) * TODO: we might be squashing a GUESTDBG_SINGLESTEP-triggered * KVM_EXIT_DEBUG here. */ - return kvm_vcpu_halt(vcpu) && ret; + return kvm_emulate_halt_noskip(vcpu) && ret; } EXPORT_SYMBOL_GPL(kvm_emulate_halt); @@ -8676,7 +8676,8 @@ int kvm_emulate_ap_reset_hold(struct kvm_vcpu *vcpu) { int ret = kvm_skip_emulated_instruction(vcpu); - return __kvm_vcpu_halt(vcpu, KVM_MP_STATE_AP_RESET_HOLD, KVM_EXIT_AP_RESET_HOLD) && ret; + return __kvm_emulate_halt(vcpu, KVM_MP_STATE_AP_RESET_HOLD, + KVM_EXIT_AP_RESET_HOLD) && ret; } EXPORT_SYMBOL_GPL(kvm_emulate_ap_reset_hold);
Rename a variety of HLT-related helpers to free up the function name "kvm_vcpu_halt" for future use in generic KVM code, e.g. to differentiate between "block" and "halt". No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> --- arch/x86/include/asm/kvm_host.h | 2 +- arch/x86/kvm/vmx/nested.c | 2 +- arch/x86/kvm/vmx/vmx.c | 4 ++-- arch/x86/kvm/x86.c | 13 +++++++------ 4 files changed, 11 insertions(+), 10 deletions(-)