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| author | Benjamin Herrenschmidt | 2018-01-12 03:37:13 +0100 |
|---|---|---|
| committer | Paul Mackerras | 2018-01-19 02:10:21 +0100 |
| commit | 2267ea7661798a42f0da648a2970e2a03f4bc370 (patch) | |
| tree | c81a43b275313a69d33b1f8276255739114863d0 /arch/powerpc/include | |
| parent | KVM: PPC: Book3S HV: Enable use of the new XIVE "single escalation" feature (diff) | |
| download | kernel-qcow2-linux-2267ea7661798a42f0da648a2970e2a03f4bc370.tar.gz kernel-qcow2-linux-2267ea7661798a42f0da648a2970e2a03f4bc370.tar.xz kernel-qcow2-linux-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/include')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_host.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index 3aa5b577cd60..bfe51356af5e 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -709,6 +709,7 @@ struct kvm_vcpu_arch { u8 ceded; u8 prodded; u8 doorbell_request; + u8 irq_pending; /* Used by XIVE to signal pending guest irqs */ u32 last_inst; struct swait_queue_head *wqp; |