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| author | Paolo Bonzini <pbonzini@redhat.com> | 2022-09-21 00:32:00 +0000 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-09-26 12:37:21 -0400 |
| commit | 599275c060a02a8f0db19c2e6a70d026d4b445ca (patch) | |
| tree | 800771994d263e2d833d530fbe5438bacb5ac230 /arch/mips | |
| parent | 26844fee6adee9b1557d2279b0506285de9ee82b (diff) | |
| download | linux-599275c060a02a8f0db19c2e6a70d026d4b445ca.tar.bz2 | |
KVM: mips, x86: do not rely on KVM_REQ_UNHALT
KVM_REQ_UNHALT is a weird request that simply reports the value of
kvm_arch_vcpu_runnable() on exit from kvm_vcpu_halt(). Only
MIPS and x86 are looking at it, the others just clear it. Check
the state of the vCPU directly so that the request is handled
as a nop on all architectures.
No functional change intended, except for corner cases where an
event arrive immediately after a signal become pending or after
another similar host-side event.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220921003201.1441511-12-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/kvm/emulate.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/mips/kvm/emulate.c b/arch/mips/kvm/emulate.c index b494d8d39290..1d7c56defe93 100644 --- a/arch/mips/kvm/emulate.c +++ b/arch/mips/kvm/emulate.c @@ -955,13 +955,12 @@ enum emulation_result kvm_mips_emul_wait(struct kvm_vcpu *vcpu) kvm_vcpu_halt(vcpu); /* - * We we are runnable, then definitely go off to user space to + * We are runnable, then definitely go off to user space to * check if any I/O interrupts are pending. */ - if (kvm_check_request(KVM_REQ_UNHALT, vcpu)) { - kvm_clear_request(KVM_REQ_UNHALT, vcpu); + kvm_clear_request(KVM_REQ_UNHALT, vcpu); + if (kvm_arch_vcpu_runnable(vcpu)) vcpu->run->exit_reason = KVM_EXIT_IRQ_WINDOW_OPEN; - } } return EMULATE_DONE; |