From: Bharat Bhushan <bharat.bhushan@xxxxxxxxxxxxx>
Instruction emulation return EMULATE_DO_PAPR when it requires
exit to userspace on book3s. Similar return is required
for booke. EMULATE_DO_PAPR reads out to be confusing so it is
renamed to EMULATE_EXIT_USER.
Signed-off-by: Bharat Bhushan <bharat.bhushan@xxxxxxxxxxxxx>
---
v2:
- moved run->exit_reason and vcpu->arch.hcall_needed to emulator.
arch/powerpc/include/asm/kvm_ppc.h | 2 +-
arch/powerpc/kvm/book3s_emulate.c | 4 +++-
arch/powerpc/kvm/book3s_pr.c | 4 +---
3 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index 44a657a..8b81468 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -44,7 +44,7 @@ enum emulation_result {
EMULATE_DO_DCR, /* kvm_run filled with DCR request */
EMULATE_FAIL, /* can't emulate this instruction */
EMULATE_AGAIN, /* something went wrong. go again */
- EMULATE_DO_PAPR, /* kvm_run filled with PAPR request */
+ EMULATE_EXIT_USER, /* emulation requires exit to user-space */
};
extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c
index 836c569..1f6344c 100644
--- a/arch/powerpc/kvm/book3s_emulate.c
+++ b/arch/powerpc/kvm/book3s_emulate.c
@@ -194,7 +194,9 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
run->papr_hcall.args[i] = gpr;
}
- emulated = EMULATE_DO_PAPR;
+ run->exit_reason = KVM_EXIT_PAPR_HCALL;
+ vcpu->arch.hcall_needed = 1;
+ emulated = EMULATE_EXIT_USER;
break;
}
#endif
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 73ed11c..2e8bd53 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -760,9 +760,7 @@ program_interrupt:
run->exit_reason = KVM_EXIT_MMIO;
r = RESUME_HOST_NV;
break;
- case EMULATE_DO_PAPR:
- run->exit_reason = KVM_EXIT_PAPR_HCALL;
- vcpu->arch.hcall_needed = 1;
+ case EMULATE_EXIT_USER:
r = RESUME_HOST_NV;
break;
default:
--
1.7.0.4
--
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