| Message ID | 20240822022827.2273534-1-maobibo@loongson.cn (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | target/loongarch/kvm: Add vCPU reset function | expand |
在 2024/8/22 上午10:28, Bibo Mao 写道: > KVM provides interface KVM_REG_LOONGARCH_VCPU_RESET to reset vCPU, > it can be used to clear internal state about kvm kernel. vCPU reset > function is added here for kvm mode. > > Signed-off-by: Bibo Mao <maobibo@loongson.cn> > --- > target/loongarch/cpu.c | 2 +- > target/loongarch/kvm/kvm.c | 5 ++++- > target/loongarch/kvm/kvm_loongarch.h | 2 +- > 3 files changed, 6 insertions(+), 3 deletions(-) > Reviewed-by: Song Gao <gaosong@loongson.cn> Thanks Song Gao > diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c > index 5e85b9dbef..6a5f856bd6 100644 > --- a/target/loongarch/cpu.c > +++ b/target/loongarch/cpu.c > @@ -563,7 +563,7 @@ static void loongarch_cpu_reset_hold(Object *obj, ResetType type) > memset(env->tlb, 0, sizeof(env->tlb)); > #endif > if (kvm_enabled()) { > - kvm_arch_reset_vcpu(env); > + kvm_arch_reset_vcpu(cs); > } > #endif > > diff --git a/target/loongarch/kvm/kvm.c b/target/loongarch/kvm/kvm.c > index e1be6a6959..4786cd5efa 100644 > --- a/target/loongarch/kvm/kvm.c > +++ b/target/loongarch/kvm/kvm.c > @@ -476,9 +476,12 @@ static int kvm_loongarch_put_regs_fp(CPUState *cs) > return ret; > } > > -void kvm_arch_reset_vcpu(CPULoongArchState *env) > +void kvm_arch_reset_vcpu(CPUState *cs) > { > + CPULoongArchState *env = cpu_env(cs); > + > env->mp_state = KVM_MP_STATE_RUNNABLE; > + kvm_set_one_reg(cs, KVM_REG_LOONGARCH_VCPU_RESET, 0); > } > > static int kvm_loongarch_get_mpstate(CPUState *cs) > diff --git a/target/loongarch/kvm/kvm_loongarch.h b/target/loongarch/kvm/kvm_loongarch.h > index d945b6bb82..1051a341ec 100644 > --- a/target/loongarch/kvm/kvm_loongarch.h > +++ b/target/loongarch/kvm/kvm_loongarch.h > @@ -11,6 +11,6 @@ > #define QEMU_KVM_LOONGARCH_H > > int kvm_loongarch_set_interrupt(LoongArchCPU *cpu, int irq, int level); > -void kvm_arch_reset_vcpu(CPULoongArchState *env); > +void kvm_arch_reset_vcpu(CPUState *cs); > > #endif >
diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c index 5e85b9dbef..6a5f856bd6 100644 --- a/target/loongarch/cpu.c +++ b/target/loongarch/cpu.c @@ -563,7 +563,7 @@ static void loongarch_cpu_reset_hold(Object *obj, ResetType type) memset(env->tlb, 0, sizeof(env->tlb)); #endif if (kvm_enabled()) { - kvm_arch_reset_vcpu(env); + kvm_arch_reset_vcpu(cs); } #endif diff --git a/target/loongarch/kvm/kvm.c b/target/loongarch/kvm/kvm.c index e1be6a6959..4786cd5efa 100644 --- a/target/loongarch/kvm/kvm.c +++ b/target/loongarch/kvm/kvm.c @@ -476,9 +476,12 @@ static int kvm_loongarch_put_regs_fp(CPUState *cs) return ret; } -void kvm_arch_reset_vcpu(CPULoongArchState *env) +void kvm_arch_reset_vcpu(CPUState *cs) { + CPULoongArchState *env = cpu_env(cs); + env->mp_state = KVM_MP_STATE_RUNNABLE; + kvm_set_one_reg(cs, KVM_REG_LOONGARCH_VCPU_RESET, 0); } static int kvm_loongarch_get_mpstate(CPUState *cs) diff --git a/target/loongarch/kvm/kvm_loongarch.h b/target/loongarch/kvm/kvm_loongarch.h index d945b6bb82..1051a341ec 100644 --- a/target/loongarch/kvm/kvm_loongarch.h +++ b/target/loongarch/kvm/kvm_loongarch.h @@ -11,6 +11,6 @@ #define QEMU_KVM_LOONGARCH_H int kvm_loongarch_set_interrupt(LoongArchCPU *cpu, int irq, int level); -void kvm_arch_reset_vcpu(CPULoongArchState *env); +void kvm_arch_reset_vcpu(CPUState *cs); #endif
KVM provides interface KVM_REG_LOONGARCH_VCPU_RESET to reset vCPU, it can be used to clear internal state about kvm kernel. vCPU reset function is added here for kvm mode. Signed-off-by: Bibo Mao <maobibo@loongson.cn> --- target/loongarch/cpu.c | 2 +- target/loongarch/kvm/kvm.c | 5 ++++- target/loongarch/kvm/kvm_loongarch.h | 2 +- 3 files changed, 6 insertions(+), 3 deletions(-)