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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-09 09:03:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-09 09:03:47 +0200 |
| commit | bd935a7b21340e2e37f51a7f2d3188145e2fcf1f (patch) | |
| tree | ac8af4e6ea552d32839c415b2f36d416ee327ea4 /arch/x86/kvm/x86.c | |
| parent | 96ba6c6e8922e89ca4908c650072d8f8d7b39cbc (diff) | |
| parent | 36a21d51725af2ce0700c6ebcb6b9594aac658a6 (diff) | |
| download | linux-bd935a7b21340e2e37f51a7f2d3188145e2fcf1f.tar.gz linux-bd935a7b21340e2e37f51a7f2d3188145e2fcf1f.tar.bz2 linux-bd935a7b21340e2e37f51a7f2d3188145e2fcf1f.zip | |
Merge 5.14-rc5 into driver-core-next
We need the driver core fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index a4fd10604f72..e5d5c5ed7dd4 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3407,7 +3407,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) return 1; break; case MSR_KVM_ASYNC_PF_ACK: - if (!guest_pv_has(vcpu, KVM_FEATURE_ASYNC_PF)) + if (!guest_pv_has(vcpu, KVM_FEATURE_ASYNC_PF_INT)) return 1; if (data & 0x1) { vcpu->arch.apf.pageready_pending = false; @@ -3746,7 +3746,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) msr_info->data = vcpu->arch.apf.msr_int_val; break; case MSR_KVM_ASYNC_PF_ACK: - if (!guest_pv_has(vcpu, KVM_FEATURE_ASYNC_PF)) + if (!guest_pv_has(vcpu, KVM_FEATURE_ASYNC_PF_INT)) return 1; msr_info->data = 0; @@ -4358,8 +4358,17 @@ static int kvm_cpu_accept_dm_intr(struct kvm_vcpu *vcpu) static int kvm_vcpu_ready_for_interrupt_injection(struct kvm_vcpu *vcpu) { - return kvm_arch_interrupt_allowed(vcpu) && - kvm_cpu_accept_dm_intr(vcpu); + /* + * Do not cause an interrupt window exit if an exception + * is pending or an event needs reinjection; userspace + * might want to inject the interrupt manually using KVM_SET_REGS + * or KVM_SET_SREGS. For that to work, we must be at an + * instruction boundary and with no events half-injected. + */ + return (kvm_arch_interrupt_allowed(vcpu) && + kvm_cpu_accept_dm_intr(vcpu) && + !kvm_event_needs_reinjection(vcpu) && + !vcpu->arch.exception.pending); } static int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, |