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-rw-r--r--arch/powerpc/include/asm/kvm.h8
-rw-r--r--arch/powerpc/include/asm/kvm_book3s.h2
-rw-r--r--arch/powerpc/kvm/book3s_pr.c14
-rw-r--r--arch/powerpc/kvm/powerpc.c1
-rw-r--r--include/linux/kvm.h1
5 files changed, 24 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/kvm.h b/arch/powerpc/include/asm/kvm.h
index a4f6c85..a6a253e 100644
--- a/arch/powerpc/include/asm/kvm.h
+++ b/arch/powerpc/include/asm/kvm.h
@@ -149,6 +149,12 @@ struct kvm_regs {
#define KVM_SREGS_E_UPDATE_DBSR (1 << 3)
/*
+ * Book3S special bits to indicate contents in the struct by maintaining
+ * backwards compatibility with older structs. If adding a new field,
+ * please make sure to add a flag for that new field */
+#define KVM_SREGS_S_HIOR (1 << 0)
+
+/*
* In KVM_SET_SREGS, reserved/pad fields must be left untouched from a
* previous KVM_GET_REGS.
*
@@ -173,6 +179,8 @@ struct kvm_sregs {
__u64 ibat[8];
__u64 dbat[8];
} ppc32;
+ __u64 flags; /* KVM_SREGS_S_ */
+ __u64 hior;
} s;
struct {
union {
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 37dd748..472437b 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -90,6 +90,8 @@ struct kvmppc_vcpu_book3s {
#endif
int context_id[SID_CONTEXTS];
+ bool hior_sregs; /* HIOR is set by SREGS, not PVR */
+
struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 0c0d3f2..78dcf65 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -150,13 +150,15 @@ void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr)
#ifdef CONFIG_PPC_BOOK3S_64
if ((pvr >= 0x330000) && (pvr < 0x70330000)) {
kvmppc_mmu_book3s_64_init(vcpu);
- to_book3s(vcpu)->hior = 0xfff00000;
+ if (!to_book3s(vcpu)->hior_sregs)
+ to_book3s(vcpu)->hior = 0xfff00000;
to_book3s(vcpu)->msr_mask = 0xffffffffffffffffULL;
} else
#endif
{
kvmppc_mmu_book3s_32_init(vcpu);
- to_book3s(vcpu)->hior = 0;
+ if (!to_book3s(vcpu)->hior_sregs)
+ to_book3s(vcpu)->hior = 0;
to_book3s(vcpu)->msr_mask = 0xffffffffULL;
}
@@ -770,6 +772,9 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
}
}
+ if (sregs->u.s.flags & KVM_SREGS_S_HIOR)
+ sregs->u.s.hior = to_book3s(vcpu)->hior;
+
return 0;
}
@@ -806,6 +811,11 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
/* Flush the MMU after messing with the segments */
kvmppc_mmu_pte_flush(vcpu, 0, 0);
+ if (sregs->u.s.flags & KVM_SREGS_S_HIOR) {
+ to_book3s(vcpu)->hior_sregs = true;
+ to_book3s(vcpu)->hior = sregs->u.s.hior;
+ }
+
return 0;
}
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index a107c9b..17a5c83 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -188,6 +188,7 @@ int kvm_dev_ioctl_check_extension(long ext)
case KVM_CAP_PPC_BOOKE_SREGS:
#else
case KVM_CAP_PPC_SEGSTATE:
+ case KVM_CAP_PPC_HIOR:
#endif
case KVM_CAP_PPC_UNSET_IRQ:
case KVM_CAP_PPC_IRQ_LEVEL:
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 2069798..490b041 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -554,6 +554,7 @@ struct kvm_ppc_pvinfo {
#define KVM_CAP_PPC_SMT 64
#define KVM_CAP_PPC_RMA 65
#define KVM_CAP_MAX_VCPUS 66 /* returns max vcpus per vm */
+#define KVM_CAP_PPC_HIOR 67
#define KVM_CAP_S390_GMAP 71
#ifdef KVM_CAP_IRQ_ROUTING
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