diff options
| -rw-r--r-- | arch/powerpc/include/asm/kvm_para.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/kvm.c | 21 | ||||
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 5 |
3 files changed, 21 insertions, 7 deletions
diff --git a/arch/powerpc/include/asm/kvm_para.h b/arch/powerpc/include/asm/kvm_para.h index 7438ab360120..43c1b2260af8 100644 --- a/arch/powerpc/include/asm/kvm_para.h +++ b/arch/powerpc/include/asm/kvm_para.h @@ -47,6 +47,8 @@ struct kvm_vcpu_arch_shared { #define KVM_FEATURE_MAGIC_PAGE 1 +#define KVM_MAGIC_FEAT_SR (1 << 0) + #ifdef __KERNEL__ #ifdef CONFIG_KVM_GUEST diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c index d3a2cc50d611..226882fe85a6 100644 --- a/arch/powerpc/kernel/kvm.c +++ b/arch/powerpc/kernel/kvm.c @@ -266,12 +266,20 @@ static void kvm_patch_ins_wrteei(u32 *inst) static void kvm_map_magic_page(void *data) { - kvm_hypercall2(KVM_HC_PPC_MAP_MAGIC_PAGE, - KVM_MAGIC_PAGE, /* Physical Address */ - KVM_MAGIC_PAGE); /* Effective Address */ + u32 *features = data; + + ulong in[8]; + ulong out[8]; + + in[0] = KVM_MAGIC_PAGE; + in[1] = KVM_MAGIC_PAGE; + + kvm_hypercall(in, out, HC_VENDOR_KVM | KVM_HC_PPC_MAP_MAGIC_PAGE); + + *features = out[0]; } -static void kvm_check_ins(u32 *inst) +static void kvm_check_ins(u32 *inst, u32 features) { u32 _inst = *inst; u32 inst_no_rt = _inst & ~KVM_MASK_RT; @@ -367,9 +375,10 @@ static void kvm_use_magic_page(void) u32 *p; u32 *start, *end; u32 tmp; + u32 features; /* Tell the host to map the magic page to -4096 on all CPUs */ - on_each_cpu(kvm_map_magic_page, NULL, 1); + on_each_cpu(kvm_map_magic_page, &features, 1); /* Quick self-test to see if the mapping works */ if (__get_user(tmp, (u32*)KVM_MAGIC_PAGE)) { @@ -382,7 +391,7 @@ static void kvm_use_magic_page(void) end = (void*)_etext; for (p = start; p < end; p++) - kvm_check_ins(p); + kvm_check_ins(p, features); printk(KERN_INFO "KVM: Live patching for a fast VM %s\n", kvm_patching_worked ? "worked" : "failed"); diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 6a53a3f86dae..496d7a5200dc 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -66,6 +66,8 @@ int kvmppc_kvm_pv(struct kvm_vcpu *vcpu) vcpu->arch.magic_page_pa = param1; vcpu->arch.magic_page_ea = param2; + r2 = 0; + r = HC_EV_SUCCESS; break; } @@ -76,13 +78,14 @@ int kvmppc_kvm_pv(struct kvm_vcpu *vcpu) #endif /* Second return value is in r4 */ - kvmppc_set_gpr(vcpu, 4, r2); break; default: r = HC_EV_UNIMPLEMENTED; break; } + kvmppc_set_gpr(vcpu, 4, r2); + return r; } |