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| author | Alexander Graf <agraf@suse.de> | 2014-04-29 14:48:44 (GMT) |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-05-30 12:26:22 (GMT) |
| commit | 616dff86028298dbc91174fb3d12b8ed8cd74955 (patch) | |
| tree | 91a545abcc3b8cf70040a333a6404bcfa79f5acb /arch/powerpc/kvm/book3s.c | |
| parent | a5948fa092a04dfd6b9ee31c99eb6896c158eb08 (diff) | |
| download | linux-616dff86028298dbc91174fb3d12b8ed8cd74955.tar.xz | |
KVM: PPC: Book3S PR: Handle Facility interrupt and FSCR
POWER8 introduced a new interrupt type called "Facility unavailable interrupt"
which contains its status message in a new register called FSCR.
Handle these exits and try to emulate instructions for unhandled facilities.
Follow-on patches enable KVM to expose specific facilities into the guest.
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm/book3s.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index 81abc5c..79cfa2d 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -145,6 +145,7 @@ static int kvmppc_book3s_vec2irqprio(unsigned int vec) case 0xd00: prio = BOOK3S_IRQPRIO_DEBUG; break; case 0xf20: prio = BOOK3S_IRQPRIO_ALTIVEC; break; case 0xf40: prio = BOOK3S_IRQPRIO_VSX; break; + case 0xf60: prio = BOOK3S_IRQPRIO_FAC_UNAVAIL; break; default: prio = BOOK3S_IRQPRIO_MAX; break; } @@ -275,6 +276,9 @@ int kvmppc_book3s_irqprio_deliver(struct kvm_vcpu *vcpu, unsigned int priority) case BOOK3S_IRQPRIO_PERFORMANCE_MONITOR: vec = BOOK3S_INTERRUPT_PERFMON; break; + case BOOK3S_IRQPRIO_FAC_UNAVAIL: + vec = BOOK3S_INTERRUPT_FAC_UNAVAIL; + break; default: deliver = 0; printk(KERN_ERR "KVM: Unknown interrupt: 0x%x\n", priority); @@ -627,6 +631,9 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg) val = get_reg_val(reg->id, kvmppc_xics_get_icp(vcpu)); break; #endif /* CONFIG_KVM_XICS */ + case KVM_REG_PPC_FSCR: + val = get_reg_val(reg->id, vcpu->arch.fscr); + break; default: r = -EINVAL; break; @@ -716,6 +723,9 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg) set_reg_val(reg->id, val)); break; #endif /* CONFIG_KVM_XICS */ + case KVM_REG_PPC_FSCR: + vcpu->arch.fscr = set_reg_val(reg->id, val); + break; default: r = -EINVAL; break; |