diff options
| author | Alexander Graf <agraf@suse.de> | 2010-07-29 14:47:55 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-10-24 10:50:49 +0200 |
| commit | 5fc87407b55f5799418f4dc5931232c2bc06d077 (patch) | |
| tree | a4551597970f86783b53a02016387c89d1a5c703 | |
| parent | e8508940a88691ad3d1c46608cd968eb4be9cbc5 (diff) | |
KVM: PPC: Expose magic page support to guest
Now that we have the shared page in place and the MMU code knows about
the magic page, we can expose that capability to the guest!
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
| -rw-r--r-- | arch/powerpc/include/asm/kvm_para.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 11 |
2 files changed, 13 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_para.h b/arch/powerpc/include/asm/kvm_para.h index 0653b0d238b..7438ab36012 100644 --- a/arch/powerpc/include/asm/kvm_para.h +++ b/arch/powerpc/include/asm/kvm_para.h @@ -45,6 +45,8 @@ struct kvm_vcpu_arch_shared { #define HC_EV_SUCCESS 0 #define HC_EV_UNIMPLEMENTED 12 +#define KVM_FEATURE_MAGIC_PAGE 1 + #ifdef __KERNEL__ #ifdef CONFIG_KVM_GUEST diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index a4cf4b47e23..fecfe043458 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -61,8 +61,19 @@ int kvmppc_kvm_pv(struct kvm_vcpu *vcpu) } switch (nr) { + case HC_VENDOR_KVM | KVM_HC_PPC_MAP_MAGIC_PAGE: + { + vcpu->arch.magic_page_pa = param1; + vcpu->arch.magic_page_ea = param2; + + r = HC_EV_SUCCESS; + break; + } case HC_VENDOR_KVM | KVM_HC_FEATURES: r = HC_EV_SUCCESS; +#if defined(CONFIG_PPC_BOOK3S) /* XXX Missing magic page on BookE */ + r2 |= (1 << KVM_FEATURE_MAGIC_PAGE); +#endif /* Second return value is in r4 */ kvmppc_set_gpr(vcpu, 4, r2); |