Messages in this thread | | | From | Joao Martins <> | Subject | [PATCH v2 0/3] KVM: VMX: Posted Interrupts fixes | Date | Mon, 11 Nov 2019 17:20:09 +0000 |
| |
Hey,
This mini-series addresses two bugs plus a small cleanup:
1) Considering PID.PIR as opposed to just PID.ON for pending interrupt checks in the direct yield code path;
2) Not changing NDST in vmx_vcpu_pi_load(), which addresses a regression. Prior to this, we would observe Win2K12 guests hanging momentarily.
3) Small cleanup to streamline PIR checks with a common helper.
The cleanup is done last to simplify backports.
Joao
v2: * Fixed missing Tb/Rb tags; * Fixed broken Sob chains (on first two patches) * Only test PID.PIR if PID.SN=1 (third patch)
Joao Martins (3): KVM: VMX: Consider PID.PIR to determine if vCPU has pending interrupts KVM: VMX: Do not change PID.NDST when loading a blocked vCPU KVM: VMX: Introduce pi_is_pir_empty() helper
arch/x86/kvm/vmx/vmx.c | 21 +++++++++++++++++++-- arch/x86/kvm/vmx/vmx.h | 11 +++++++++++ 2 files changed, 30 insertions(+), 2 deletions(-)
-- 2.11.0
| |