mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-14 11:11:22 -04:00
Code Issues Packages Projects Releases Wiki Activity

KVM: x86: Refactor handling of SIPI_RECEIVED when setting MP_STATE

Browse Source 
Convert the incoming mp_state to INIT_RECIEVED instead of manually calling
kvm_set_mp_state() to make it more obvious that the SIPI_RECEIVED logic is
translating the incoming state to KVM's internal tracking, as opposed to
being some entirely unique flow.

Opportunistically add a comment to explain what the code is doing.

No functional change intended.

Link: https://lore.kernel.org/r/20250605195018.539901-5-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Sean Christopherson
2025-06-05 12:50:18 -07:00
parent 0fe3e8d804
commit 58c81bc1e7
1 changed files with 9 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
arch/x86/kvm/x86.c
View File

@@ -11929,11 +11929,17 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
goto out;
}
/*
* SIPI_RECEIVED is obsolete and no longer used internally; KVM instead
* leaves the vCPU in INIT_RECIEVED (Wait-For-SIPI) and pends the SIPI.
* Translate SIPI_RECEIVED as appropriate for backwards compatibility.
*/
if (mp_state->mp_state == KVM_MP_STATE_SIPI_RECEIVED) {
kvm_set_mp_state(vcpu, KVM_MP_STATE_INIT_RECEIVED);
mp_state->mp_state = KVM_MP_STATE_INIT_RECEIVED;
set_bit(KVM_APIC_SIPI, &vcpu->arch.apic->pending_events);
} else
kvm_set_mp_state(vcpu, mp_state->mp_state);
}
kvm_set_mp_state(vcpu, mp_state->mp_state);
kvm_make_request(KVM_REQ_EVENT, vcpu);
ret = 0;