On 28.02.2013, at 17:53, Scott Wood wrote:
> On 02/28/2013 10:51:10 AM, Alexander Graf wrote:
>> On 28.02.2013, at 17:31, Scott Wood wrote:
>> > On 02/27/2013 10:13:15 PM, Bharat Bhushan wrote:
>> >> 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>
>> >> ---
>> >> arch/powerpc/include/asm/kvm_ppc.h | 2 +-
>> >> arch/powerpc/kvm/book3s_emulate.c | 2 +-
>> >> arch/powerpc/kvm/book3s_pr.c | 2 +-
>> >> 3 files changed, 3 insertions(+), 3 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..cdd19d6 100644
>> >> --- a/arch/powerpc/kvm/book3s_emulate.c
>> >> +++ b/arch/powerpc/kvm/book3s_emulate.c
>> >> @@ -194,7 +194,7 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
>> >> run->papr_hcall.args[i] = gpr;
>> >> }
>> >> - emulated = EMULATE_DO_PAPR;
>> >> + emulated = EMULATE_EXIT_USER;
>> >> break;
>> >> }
>> >> #endif
>> >> diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
>> >> index 73ed11c..8df2d2d 100644
>> >> --- a/arch/powerpc/kvm/book3s_pr.c
>> >> +++ b/arch/powerpc/kvm/book3s_pr.c
>> >> @@ -760,7 +760,7 @@ program_interrupt:
>> >> run->exit_reason = KVM_EXIT_MMIO;
>> >> r = RESUME_HOST_NV;
>> >> break;
>> >> - case EMULATE_DO_PAPR:
>> >> + case EMULATE_EXIT_USER:
>> >> run->exit_reason = KVM_EXIT_PAPR_HCALL;
>> >> vcpu->arch.hcall_needed = 1;
>> >> r = RESUME_HOST_NV;
>> >
>> > I don't think it makes sense to genericize this.
>> It makes sense if the run->exit_reason = ... and hcall_needed = ... lines get pulled into the emulator.
>
> That would be fine.
Bharat, did I miss a new patch version with that mess up there fixed?
Alex
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