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| author | Liu Yu-B13201 <Yu.Liu@freescale.com> | 2012-07-03 07:48:52 +0200 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2012-10-05 23:38:37 +0200 |
| commit | 9202e07636f0c4858ba6c30773a3f160b2b5659a (patch) | |
| tree | 8dc71ab432097c3cfbad47157d66788e02d1f219 /arch/powerpc/kvm/powerpc.c | |
| parent | KVM: PPC: add pvinfo for hcall opcodes on e500mc/e5500 (diff) | |
| download | linux-9202e07636f0c4858ba6c30773a3f160b2b5659a.tar.xz linux-9202e07636f0c4858ba6c30773a3f160b2b5659a.zip | |
KVM: PPC: Add support for ePAPR idle hcall in host kernel
And add a new flag definition in kvm_ppc_pvinfo to indicate
whether the host supports the EV_IDLE hcall.
Signed-off-by: Liu Yu <yu.liu@freescale.com>
[stuart.yoder@freescale.com: cleanup,fixes for conditions allowing idle]
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
[agraf: fix typo]
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm/powerpc.c')
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index a478e662b2bc..dbf56e173c25 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -38,8 +38,7 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *v) { - return !(v->arch.shared->msr & MSR_WE) || - !!(v->arch.pending_exceptions) || + return !!(v->arch.pending_exceptions) || v->requests; } @@ -86,6 +85,11 @@ int kvmppc_kvm_pv(struct kvm_vcpu *vcpu) /* Second return value is in r4 */ break; + case EV_HCALL_TOKEN(EV_IDLE): + r = EV_SUCCESS; + kvm_vcpu_block(vcpu); + clear_bit(KVM_REQ_UNHALT, &vcpu->requests); + break; default: r = EV_UNIMPLEMENTED; break; @@ -779,6 +783,8 @@ static int kvm_vm_ioctl_get_pvinfo(struct kvm_ppc_pvinfo *pvinfo) pvinfo->hcall[3] = inst_nop; #endif + pvinfo->flags = KVM_PPC_PVINFO_FLAGS_EV_IDLE; + return 0; } |