Patchwork [37/38] KVM: PPC: booke: Reinject performance monitor interrupts

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Submitter Alexander Graf
Date Feb. 29, 2012, 12:10 a.m.
Message ID <1330474206-14794-38-git-send-email-agraf@suse.de>
Download mbox | patch
Permalink /patch/143585/
State New
Headers show

Comments

Alexander Graf - Feb. 29, 2012, 12:10 a.m.
When we get a performance monitor interrupt, we need to make sure that
the host receives it. So reinject it like we reinject the other host
destined interrupts.

Signed-off-by: Alexander Graf <agraf@suse.de>

---

v2 -> v3:

  - call regs sync directly
---
 arch/powerpc/include/asm/hw_irq.h |    1 +
 arch/powerpc/kvm/booke.c          |    4 ++++
 2 files changed, 5 insertions(+), 0 deletions(-)

Patch

diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index bb712c9..904e66c 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -12,6 +12,7 @@ 
 #include <asm/processor.h>
 
 extern void timer_interrupt(struct pt_regs *);
+extern void performance_monitor_exception(struct pt_regs *regs);
 
 #ifdef CONFIG_PPC64
 #include <asm/paca.h>
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 488936b..8e8aa4c 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -634,6 +634,10 @@  static void kvmppc_restart_interrupt(struct kvm_vcpu *vcpu,
 	case BOOKE_INTERRUPT_MACHINE_CHECK:
 		/* FIXME */
 		break;
+	case BOOKE_INTERRUPT_PERFORMANCE_MONITOR:
+		kvmppc_fill_pt_regs(&regs);
+		performance_monitor_exception(&regs);
+		break;
 	}
 }