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[Qemu-devel] [PULL 21/52] ppc: debug stub: Get trap instruction opcode f


From: Alexander Graf
Subject: [Qemu-devel] [PULL 21/52] ppc: debug stub: Get trap instruction opcode from KVM
Date: Thu, 4 Sep 2014 19:20:09 +0200

From: Bharat Bhushan <address@hidden>

Get trap instruction opcode from KVM and this opcode will
be used for setting software breakpoint in following patch

Signed-off-by: Bharat Bhushan <address@hidden>
Signed-off-by: Alexander Graf <address@hidden>
---
 target-ppc/kvm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c
index 8c9e79c..126f7ee 100644
--- a/target-ppc/kvm.c
+++ b/target-ppc/kvm.c
@@ -72,6 +72,8 @@ static int cap_papr;
 static int cap_htab_fd;
 static int cap_fixup_hcalls;
 
+static uint32_t debug_inst_opcode;
+
 /* XXX We have a race condition where we actually have a level triggered
  *     interrupt, but the infrastructure can't expose that yet, so the guest
  *     takes but ignores it, goes to sleep and never gets notified that there's
@@ -436,6 +438,8 @@ int kvm_arch_init_vcpu(CPUState *cs)
         break;
     }
 
+    kvm_get_one_reg(cs, KVM_REG_PPC_DEBUG_INST, &debug_inst_opcode);
+
     return ret;
 }
 
-- 
1.8.1.4




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