From: Bharat Bhushan <Bharat.Bhushan@freescale.com>
Date: Wed, 6 Aug 2014 06:38:51 +0000 (+0530)
Subject: KVM: PPC: BOOKE: allow debug interrupt at "debug level"
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9fee7563cdb535596c48e7b05383d75590a64418;p=linux-beck.git

KVM: PPC: BOOKE: allow debug interrupt at "debug level"

Debug interrupt can be either "critical level" or "debug level".
There are separate set of save/restore registers used for different level.
Example: DSRR0/DSRR1 are used for "debug level" and CSRR0/CSRR1
are used for critical level debug interrupt.

Using CPU_FTR_DEBUG_LVL_EXC to decide which interrupt level to be used.

Signed-off-by: Bharat Bhushan <Bharat.Bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---

diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index b4c89fa6f109..322da7d2334a 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -377,7 +377,11 @@ static int kvmppc_booke_irqprio_deliver(struct kvm_vcpu *vcpu,
 		allowed = vcpu->arch.shared->msr & MSR_DE;
 		allowed = allowed && !crit;
 		msr_mask = MSR_ME;
-		int_class = INT_CLASS_CRIT;
+		if (cpu_has_feature(CPU_FTR_DEBUG_LVL_EXC))
+			int_class = INT_CLASS_DBG;
+		else
+			int_class = INT_CLASS_CRIT;
+
 		break;
 	}