Re: [PATCH 5/7 v3] KVM: PPC: exit to user space on "ehpriv" instruction

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On 08.04.2013, at 12:32, Bharat Bhushan wrote:

> From: Bharat Bhushan <bharat.bhushan@xxxxxxxxxxxxx>
> 
> "ehpriv" instruction is used for setting software breakpoints
> by user space. This patch adds support to exit to user space
> with "run->debug" have relevant information.
> 
> Signed-off-by: Bharat Bhushan <bharat.bhushan@xxxxxxxxxxxxx>
> ---
> arch/powerpc/kvm/e500_emulate.c |   10 ++++++++++
> 1 files changed, 10 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c
> index e78f353..cefdd38 100644
> --- a/arch/powerpc/kvm/e500_emulate.c
> +++ b/arch/powerpc/kvm/e500_emulate.c
> @@ -26,6 +26,7 @@
> #define XOP_TLBRE   946
> #define XOP_TLBWE   978
> #define XOP_TLBILX  18
> +#define XOP_EHPRIV  270
> 
> #ifdef CONFIG_KVM_E500MC
> static int dbell2prio(ulong param)
> @@ -130,6 +131,15 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
> 			emulated = kvmppc_e500_emul_tlbivax(vcpu, ea);
> 			break;
> 
> +		case XOP_EHPRIV:

This is supposed to check for oc, no?


Alex

> +			run->exit_reason = KVM_EXIT_DEBUG;
> +			run->debug.arch.address = vcpu->arch.pc;
> +			run->debug.arch.status = 0;
> +			kvmppc_account_exit(vcpu, DEBUG_EXITS);
> +			emulated = EMULATE_EXIT_USER;
> +			*advance = 0;
> +			break;
> +
> 		default:
> 			emulated = EMULATE_FAIL;
> 		}
> -- 
> 1.7.0.4
> 
> 
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