diff options
Diffstat (limited to '')
| -rw-r--r-- | target/loongarch/kvm/kvm.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/target/loongarch/kvm/kvm.c b/target/loongarch/kvm/kvm.c index 3117441f53..ed0706e8e0 100644 --- a/target/loongarch/kvm/kvm.c +++ b/target/loongarch/kvm/kvm.c @@ -83,6 +83,33 @@ static int kvm_set_stealtime(CPUState *cs) return 0; } +static int kvm_set_pv_features(CPUState *cs) +{ + CPULoongArchState *env = cpu_env(cs); + int err; + uint64_t val; + struct kvm_device_attr attr = { + .group = KVM_LOONGARCH_VCPU_CPUCFG, + .attr = CPUCFG_KVM_FEATURE, + .addr = (uint64_t)&val, + }; + + err = kvm_vcpu_ioctl(cs, KVM_HAS_DEVICE_ATTR, attr); + if (err) { + return 0; + } + + val = env->pv_features; + err = kvm_vcpu_ioctl(cs, KVM_SET_DEVICE_ATTR, attr); + if (err) { + error_report("Fail to set pv feature "TARGET_FMT_lx " with error %s", + val, strerror(errno)); + return err; + } + + return 0; +} + static int kvm_loongarch_get_regs_core(CPUState *cs) { int ret = 0; @@ -738,6 +765,7 @@ int kvm_arch_get_registers(CPUState *cs, Error **errp) int kvm_arch_put_registers(CPUState *cs, int level, Error **errp) { int ret; + static int once; ret = kvm_loongarch_put_regs_core(cs); if (ret) { @@ -764,6 +792,14 @@ int kvm_arch_put_registers(CPUState *cs, int level, Error **errp) return ret; } + if (!once) { + ret = kvm_set_pv_features(cs); + if (ret) { + return ret; + } + once = 1; + } + if (level >= KVM_PUT_FULL_STATE) { /* * only KVM_PUT_FULL_STATE is required, kvm kernel will clear |