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-rw-r--r--arch/powerpc/include/asm/kvm_book3s.h7
-rw-r--r--arch/powerpc/kvm/book3s_64_mmu_host.c13
2 files changed, 11 insertions, 9 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index aa795ccef29..fd07f43d662 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -81,12 +81,13 @@ struct kvmppc_vcpu_book3s {
u64 sdr1;
u64 hior;
u64 msr_mask;
- u64 vsid_next;
#ifdef CONFIG_PPC_BOOK3S_32
u32 vsid_pool[VSID_POOL_SIZE];
+ u32 vsid_next;
#else
- u64 vsid_first;
- u64 vsid_max;
+ u64 proto_vsid_first;
+ u64 proto_vsid_max;
+ u64 proto_vsid_next;
#endif
int context_id[SID_CONTEXTS];
diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c
index 6f87f39a1ac..10fc8ec9d2a 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_host.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_host.c
@@ -194,14 +194,14 @@ static struct kvmppc_sid_map *create_sid_map(struct kvm_vcpu *vcpu, u64 gvsid)
backwards_map = !backwards_map;
/* Uh-oh ... out of mappings. Let's flush! */
- if (vcpu_book3s->vsid_next == vcpu_book3s->vsid_max) {
- vcpu_book3s->vsid_next = vcpu_book3s->vsid_first;
+ if (vcpu_book3s->proto_vsid_next == vcpu_book3s->proto_vsid_max) {
+ vcpu_book3s->proto_vsid_next = vcpu_book3s->proto_vsid_first;
memset(vcpu_book3s->sid_map, 0,
sizeof(struct kvmppc_sid_map) * SID_MAP_NUM);
kvmppc_mmu_pte_flush(vcpu, 0, 0);
kvmppc_mmu_flush_segments(vcpu);
}
- map->host_vsid = vcpu_book3s->vsid_next++;
+ map->host_vsid = vsid_scramble(vcpu_book3s->proto_vsid_next++, 256M);
map->guest_vsid = gvsid;
map->valid = true;
@@ -319,9 +319,10 @@ int kvmppc_mmu_init(struct kvm_vcpu *vcpu)
return -1;
vcpu3s->context_id[0] = err;
- vcpu3s->vsid_max = ((vcpu3s->context_id[0] + 1) << USER_ESID_BITS) - 1;
- vcpu3s->vsid_first = vcpu3s->context_id[0] << USER_ESID_BITS;
- vcpu3s->vsid_next = vcpu3s->vsid_first;
+ vcpu3s->proto_vsid_max = ((vcpu3s->context_id[0] + 1)
+ << USER_ESID_BITS) - 1;
+ vcpu3s->proto_vsid_first = vcpu3s->context_id[0] << USER_ESID_BITS;
+ vcpu3s->proto_vsid_next = vcpu3s->proto_vsid_first;
kvmppc_mmu_hpte_init(vcpu);