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| author | Alexander Graf <agraf@suse.de> | 2012-10-09 00:06:20 +0200 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2012-12-06 01:33:50 +0100 |
| commit | 0e673fb679027600cad45bd61a4cc9ebd2ed2bb1 (patch) | |
| tree | 305737e89b8fbfc558ec05d887ccf1e5c935748a /arch/powerpc/kvm/powerpc.c | |
| parent | 914daba865cb5c38cd5fdee024ca38029315b38f (diff) | |
| download | blackbird-op-linux-0e673fb679027600cad45bd61a4cc9ebd2ed2bb1.tar.gz blackbird-op-linux-0e673fb679027600cad45bd61a4cc9ebd2ed2bb1.zip | |
KVM: PPC: Support eventfd
In order to support the generic eventfd infrastructure on PPC, we need
to call into the generic KVM in-kernel device mmio code.
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm/powerpc.c')
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index f9ab12aea829..d583ea15e151 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -314,6 +314,7 @@ int kvm_dev_ioctl_check_extension(long ext) case KVM_CAP_PPC_IRQ_LEVEL: case KVM_CAP_ENABLE_CAP: case KVM_CAP_ONE_REG: + case KVM_CAP_IOEVENTFD: r = 1; break; #ifndef CONFIG_KVM_BOOK3S_64_HV @@ -618,6 +619,13 @@ int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu, vcpu->mmio_is_write = 0; vcpu->arch.mmio_sign_extend = 0; + if (!kvm_io_bus_read(vcpu->kvm, KVM_MMIO_BUS, run->mmio.phys_addr, + bytes, &run->mmio.data)) { + kvmppc_complete_mmio_load(vcpu, run); + vcpu->mmio_needed = 0; + return EMULATE_DONE; + } + return EMULATE_DO_MMIO; } @@ -627,8 +635,8 @@ int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu, { int r; - r = kvmppc_handle_load(run, vcpu, rt, bytes, is_bigendian); vcpu->arch.mmio_sign_extend = 1; + r = kvmppc_handle_load(run, vcpu, rt, bytes, is_bigendian); return r; } @@ -666,6 +674,13 @@ int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu, } } + if (!kvm_io_bus_write(vcpu->kvm, KVM_MMIO_BUS, run->mmio.phys_addr, + bytes, &run->mmio.data)) { + kvmppc_complete_mmio_load(vcpu, run); + vcpu->mmio_needed = 0; + return EMULATE_DONE; + } + return EMULATE_DO_MMIO; } |
