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| author | Mihai Caraman <mihai.caraman@freescale.com> | 2012-10-11 08:13:27 +0200 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2012-12-06 01:34:19 +0100 |
| commit | 38f988240c611f9d2595feb1b8ddcb80b0e97dec (patch) | |
| tree | 76890955b85d7d2e5de119353225d55a4858af56 /arch/powerpc/kvm/booke_emulate.c | |
| parent | KVM: PPC: bookehv: Add guest computation mode for irq delivery (diff) | |
| download | linux-38f988240c611f9d2595feb1b8ddcb80b0e97dec.tar.xz linux-38f988240c611f9d2595feb1b8ddcb80b0e97dec.zip | |
KVM: PPC: bookehv: Add EPCR support in mtspr/mfspr emulation
Add EPCR support in booke mtspr/mfspr emulation. EPCR register is defined only
for 64-bit and HV categories, we will expose it at this point only to 64-bit
virtual processors running on 64-bit HV hosts.
Define a reusable setter function for vcpu's EPCR.
Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com>
[agraf: move HV dependency in the code]
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm/booke_emulate.c')
| -rw-r--r-- | arch/powerpc/kvm/booke_emulate.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/booke_emulate.c b/arch/powerpc/kvm/booke_emulate.c index 514790f41aba..4685b8cf2249 100644 --- a/arch/powerpc/kvm/booke_emulate.c +++ b/arch/powerpc/kvm/booke_emulate.c @@ -240,7 +240,14 @@ int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val) case SPRN_MCSR: vcpu->arch.mcsr &= ~spr_val; break; - +#if defined(CONFIG_64BIT) + case SPRN_EPCR: + kvmppc_set_epcr(vcpu, spr_val); +#ifdef CONFIG_KVM_BOOKE_HV + mtspr(SPRN_EPCR, vcpu->arch.shadow_epcr); +#endif + break; +#endif default: emulated = EMULATE_FAIL; } @@ -335,6 +342,11 @@ int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val) case SPRN_MCSR: *spr_val = vcpu->arch.mcsr; break; +#if defined(CONFIG_64BIT) + case SPRN_EPCR: + *spr_val = vcpu->arch.epcr; + break; +#endif default: emulated = EMULATE_FAIL; |