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| author | Nicholas Piggin <npiggin@gmail.com> | 2022-03-03 15:33:11 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-05-13 21:34:33 +1000 |
| commit | 026728dc5d41f830e8194fe01e432dd4eb9b3d9a (patch) | |
| tree | 9db25b875ecedef35160a454242076de2c1d04bc /arch/powerpc/kvm | |
| parent | f104df7d519ff1aa92c7ec87e124c88d4e7574cd (diff) | |
| download | linux-026728dc5d41f830e8194fe01e432dd4eb9b3d9a.tar.bz2 | |
KVM: PPC: Book3S HV P9: Inject pending xive interrupts at guest entry
If there is a pending xive interrupt, inject it at guest entry (if
MSR[EE] is enabled) rather than take another interrupt when the guest
is entered. If xive is enabled then LPCR[LPES] is set so this behaviour
should be expected.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220303053315.1056880-3-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/kvm')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index e1e0d1582885..2bf1c23b0171 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -4519,9 +4519,14 @@ int kvmhv_run_single_vcpu(struct kvm_vcpu *vcpu, u64 time_limit, if (!nested) { kvmppc_core_prepare_to_enter(vcpu); - if (test_bit(BOOK3S_IRQPRIO_EXTERNAL, - &vcpu->arch.pending_exceptions)) + if (vcpu->arch.shregs.msr & MSR_EE) { + if (xive_interrupt_pending(vcpu)) + kvmppc_inject_interrupt_hv(vcpu, + BOOK3S_INTERRUPT_EXTERNAL, 0); + } else if (test_bit(BOOK3S_IRQPRIO_EXTERNAL, + &vcpu->arch.pending_exceptions)) { lpcr |= LPCR_MER; + } } else if (vcpu->arch.pending_exceptions || vcpu->arch.doorbell_request || xive_interrupt_pending(vcpu)) { |