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ppc: debug stub: Get trap instruction opcode from KVM

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

Signed-off-by: Bharat Bhushan <Bharat.Bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Bharat Bhushan 2014-07-14 14:45:35 +05:30 • committed by Alexander Graf
parent b7d1f77ada
commit 3c902d4469
1 changed files with 4 additions and 0 deletions
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4
target-ppc/kvm.c
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@ -72,6 +72,8 @@ static int cap_papr;
static int cap_htab_fd; static int cap_htab_fd;
static int cap_fixup_hcalls; static int cap_fixup_hcalls;
static uint32_t debug_inst_opcode;
/* XXX We have a race condition where we actually have a level triggered /* 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 * 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 * 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; break;
} }
kvm_get_one_reg(cs, KVM_REG_PPC_DEBUG_INST, &debug_inst_opcode);
return ret; return ret;
} }