Commit a0595000 authored by Jan H. Schönherr's avatar Jan H. Schönherr Committed by Radim Krčmář

KVM: x86: Fix handling of pending signal on uninitialized AP

KVM API says that KVM_RUN will return with -EINTR when a signal is
pending. However, if a vCPU is in KVM_MP_STATE_UNINITIALIZED, then
the return value is unconditionally -EAGAIN.

Copy over some code from vcpu_run(), so that the case of a pending
signal results in the expected return value.
Signed-off-by: default avatarJan H. Schönherr <jschoenh@amazon.de>
Signed-off-by: default avatarRadim Krčmář <rkrcmar@redhat.com>
parent 49a8afca
...@@ -7235,6 +7235,11 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) ...@@ -7235,6 +7235,11 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
kvm_apic_accept_events(vcpu); kvm_apic_accept_events(vcpu);
kvm_clear_request(KVM_REQ_UNHALT, vcpu); kvm_clear_request(KVM_REQ_UNHALT, vcpu);
r = -EAGAIN; r = -EAGAIN;
if (signal_pending(current)) {
r = -EINTR;
vcpu->run->exit_reason = KVM_EXIT_INTR;
++vcpu->stat.signal_exits;
}
goto out; goto out;
} }
......
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