Re: [PATCH v2 17/43] KVM: x86: Directly block (instead of "halting") UNINITIALIZED vCPUs
Maxim Levitsky <[email protected]>
| Newsgroups | org.kernel.vger.kvm-ppc,dev.linux.lists.kvmarm,org.infradead.lists.kvm-riscv,org.infradead.lists.linux-arm-kernel,org.infradead.lists.linux-riscv,org.kernel.vger.kvm,org.kernel.vger.linux-kernel,org.kernel.vger.linux-mips |
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| Message-ID | <[email protected]> |
On Fri, 2021-10-08 at 19:12 -0700, Sean Christopherson wrote: > 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 <[email protected]> > Signed-off-by: Sean Christopherson <[email protected]> > --- > arch/x86/kvm/x86.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c > index e6c17bbed25c..cd51f100e906 100644 > --- a/arch/x86/kvm/x86.c > +++ b/arch/x86/kvm/x86.c > @@ -10133,7 +10133,7 @@ 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; Makes sense. Reviewed-by: Maxim Levitsky <[email protected]> Best regards, Maxim levitsky