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KVM: x86: Directly block (instead of "halting") UNINITIALIZED vCPUs

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Go directly to kvm_vcpu_block() when handling the case where userspace
attempts to run an UNINITIALIZED vCPU.  The vCPU is not halted, nor is it
likely that halt-polling will be successful in this case.

Reviewed-by: David Matlack <dmatlack@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211009021236.4122790-18-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2021-10-08 19:12:10 -07:00 committed by Paolo Bonzini
parent 109a98260b
commit c91d449714
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/x86.c
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@ -10203,7 +10203,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
r = -EINTR;
goto out;
}
kvm_vcpu_halt(vcpu);
kvm_vcpu_block(vcpu);
if (kvm_apic_accept_events(vcpu) < 0) {
r = 0;
goto out;