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authorLiu Yu <yu.liu@freescale.com>2009-02-17 16:52:08 +0800
committerAvi Kivity <avi@redhat.com>2009-03-24 11:03:12 +0200
commitb0a1835d53c57bc38b36867c04436b60454cb610 (patch)
tree8d3cd9f1d01b8d13f82bddda759c1f3335147221 /arch/powerpc
parent71450f78853b82d55cda4e182c9db6e26b631485 (diff)
KVM: ppc: Add emulation of E500 register mmucsr0
Latest kernel flushes TLB via mmucsr0. Signed-off-by: Liu Yu <yu.liu@freescale.com> Acked-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/kvm/e500_emulate.c8
-rw-r--r--arch/powerpc/kvm/e500_tlb.c16
-rw-r--r--arch/powerpc/kvm/e500_tlb.h1
3 files changed, 25 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c
index 7a98d4a4c1e..3f760414b9f 100644
--- a/arch/powerpc/kvm/e500_emulate.c
+++ b/arch/powerpc/kvm/e500_emulate.c
@@ -105,6 +105,11 @@ int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
case SPRN_HID1:
vcpu_e500->hid1 = vcpu->arch.gpr[rs]; break;
+ case SPRN_MMUCSR0:
+ emulated = kvmppc_e500_emul_mt_mmucsr0(vcpu_e500,
+ vcpu->arch.gpr[rs]);
+ break;
+
/* extra exceptions */
case SPRN_IVOR32:
vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL] = vcpu->arch.gpr[rs];
@@ -172,6 +177,9 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
case SPRN_HID1:
vcpu->arch.gpr[rt] = vcpu_e500->hid1; break;
+ case SPRN_MMUCSR0:
+ vcpu->arch.gpr[rt] = 0; break;
+
/* extra exceptions */
case SPRN_IVOR32:
vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL];
diff --git a/arch/powerpc/kvm/e500_tlb.c b/arch/powerpc/kvm/e500_tlb.c
index d437160d388..72386ddbd9d 100644
--- a/arch/powerpc/kvm/e500_tlb.c
+++ b/arch/powerpc/kvm/e500_tlb.c
@@ -391,6 +391,22 @@ static int kvmppc_e500_gtlbe_invalidate(struct kvmppc_vcpu_e500 *vcpu_e500,
return 0;
}
+int kvmppc_e500_emul_mt_mmucsr0(struct kvmppc_vcpu_e500 *vcpu_e500, ulong value)
+{
+ int esel;
+
+ if (value & MMUCSR0_TLB0FI)
+ for (esel = 0; esel < vcpu_e500->guest_tlb_size[0]; esel++)
+ kvmppc_e500_gtlbe_invalidate(vcpu_e500, 0, esel);
+ if (value & MMUCSR0_TLB1FI)
+ for (esel = 0; esel < vcpu_e500->guest_tlb_size[1]; esel++)
+ kvmppc_e500_gtlbe_invalidate(vcpu_e500, 1, esel);
+
+ _tlbil_all();
+
+ return EMULATE_DONE;
+}
+
int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *vcpu, int ra, int rb)
{
struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
diff --git a/arch/powerpc/kvm/e500_tlb.h b/arch/powerpc/kvm/e500_tlb.h
index ab49e935518..4d5cc0f7d79 100644
--- a/arch/powerpc/kvm/e500_tlb.h
+++ b/arch/powerpc/kvm/e500_tlb.h
@@ -44,6 +44,7 @@
| E500_TLB_USER_PERM_MASK | E500_TLB_SUPER_PERM_MASK)
extern void kvmppc_dump_tlbs(struct kvm_vcpu *);
+extern int kvmppc_e500_emul_mt_mmucsr0(struct kvmppc_vcpu_e500 *, ulong);
extern int kvmppc_e500_emul_tlbwe(struct kvm_vcpu *);
extern int kvmppc_e500_emul_tlbre(struct kvm_vcpu *);
extern int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *, int, int);