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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2018-01-12 13:37:13 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2018-01-19 12:10:21 +1100 |
| commit | 2267ea7661798a42f0da648a2970e2a03f4bc370 (patch) | |
| tree | c81a43b275313a69d33b1f8276255739114863d0 /arch/powerpc/kvm/book3s_hv.c | |
| parent | bf4159da4751ab8eea43ca6e7c49193dbce8398c (diff) | |
| download | lwn-2267ea7661798a42f0da648a2970e2a03f4bc370.tar.gz lwn-2267ea7661798a42f0da648a2970e2a03f4bc370.zip | |
KVM: PPC: Book3S HV: Don't use existing "prodded" flag for XIVE escalations
The prodded flag is only cleared at the beginning of H_CEDE,
so every time we have an escalation, we will cause the *next*
H_CEDE to return immediately.
Instead use a dedicated "irq_pending" flag to indicate that
a guest interrupt is pending for the VCPU. We don't reuse the
existing exception bitmap so as to avoid expensive atomic ops.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch/powerpc/kvm/book3s_hv.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 76cf48051eb3..e5f81fc108e0 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -2999,7 +2999,7 @@ static inline bool xive_interrupt_pending(struct kvm_vcpu *vcpu) { if (!xive_enabled()) return false; - return vcpu->arch.xive_saved_state.pipr < + return vcpu->arch.irq_pending || vcpu->arch.xive_saved_state.pipr < vcpu->arch.xive_saved_state.cppr; } #else |