Add emulation helper for getting instruction ea and refactor tlb instruction
emulation to use it.
Signed-off-by: Mihai Caraman <mihai.caraman@xxxxxxxxxxxxx>
---
arch/powerpc/kvm/e500.h | 6 +++---
arch/powerpc/kvm/e500_emulate.c | 21 ++++++++++++++++++---
arch/powerpc/kvm/e500_tlb.c | 23 ++++++-----------------
3 files changed, 27 insertions(+), 23 deletions(-)
diff --git a/arch/powerpc/kvm/e500.h b/arch/powerpc/kvm/e500.h
index 3e31098..70bfed4 100644
--- a/arch/powerpc/kvm/e500.h
+++ b/arch/powerpc/kvm/e500.h
@@ -130,9 +130,9 @@ int kvmppc_e500_emul_mt_mmucsr0(struct kvmppc_vcpu_e500 *vcpu_e500,
ulong value);
int kvmppc_e500_emul_tlbwe(struct kvm_vcpu *vcpu);
int kvmppc_e500_emul_tlbre(struct kvm_vcpu *vcpu);
-int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *vcpu, int ra, int rb);
-int kvmppc_e500_emul_tlbilx(struct kvm_vcpu *vcpu, int rt, int ra, int rb);
-int kvmppc_e500_emul_tlbsx(struct kvm_vcpu *vcpu, int rb);
+int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *vcpu, gva_t ea);
+int kvmppc_e500_emul_tlbilx(struct kvm_vcpu *vcpu, int rt, gva_t ea);
+int kvmppc_e500_emul_tlbsx(struct kvm_vcpu *vcpu, gva_t ea);
int kvmppc_e500_tlb_init(struct kvmppc_vcpu_e500 *vcpu_e500);
void kvmppc_e500_tlb_uninit(struct kvmppc_vcpu_e500 *vcpu_e500);
diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c
index 8b99e07..81288f7 100644
--- a/arch/powerpc/kvm/e500_emulate.c
+++ b/arch/powerpc/kvm/e500_emulate.c
@@ -82,6 +82,17 @@ static int kvmppc_e500_emul_msgsnd(struct kvm_vcpu *vcpu, int rb)
}
#endif
+static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb)
+{
+ ulong ea;
+
+ ea = kvmppc_get_gpr(vcpu, rb);
+ if (ra)
+ ea += kvmppc_get_gpr(vcpu, ra);
+
+ return ea;
+}
+
int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
unsigned int inst, int *advance)
{
@@ -89,6 +100,7 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
int ra = get_ra(inst);
int rb = get_rb(inst);
int rt = get_rt(inst);
+ gva_t ea;
switch (get_op(inst)) {
case 31:
@@ -113,15 +125,18 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
break;
case XOP_TLBSX:
- emulated = kvmppc_e500_emul_tlbsx(vcpu,rb);
+ ea = kvmppc_get_ea_indexed(vcpu, ra, rb);
+ emulated = kvmppc_e500_emul_tlbsx(vcpu, ea);
break;
case XOP_TLBILX:
- emulated = kvmppc_e500_emul_tlbilx(vcpu, rt, ra, rb);
+ ea = kvmppc_get_ea_indexed(vcpu, ra, rb);
+ emulated = kvmppc_e500_emul_tlbilx(vcpu, rt, ea);
break;
case XOP_TLBIVAX:
- emulated = kvmppc_e500_emul_tlbivax(vcpu, ra, rb);
+ ea = kvmppc_get_ea_indexed(vcpu, ra, rb);
+ emulated = kvmppc_e500_emul_tlbivax(vcpu, ea);
break;
default:
diff --git a/arch/powerpc/kvm/e500_tlb.c b/arch/powerpc/kvm/e500_tlb.c
index c510fc9..2175a58 100644
--- a/arch/powerpc/kvm/e500_tlb.c
+++ b/arch/powerpc/kvm/e500_tlb.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All rights reserved.
+ * Copyright (C) 2008-2012 Freescale Semiconductor, Inc. All rights reserved.
*
* Author: Yu Liu, yu.liu@xxxxxxxxxxxxx
* Scott Wood, scottwood@xxxxxxxxxxxxx
@@ -680,14 +680,11 @@ int kvmppc_e500_emul_mt_mmucsr0(struct kvmppc_vcpu_e500 *vcpu_e500, ulong value)
return EMULATE_DONE;
}
-int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *vcpu, int ra, int rb)
+int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *vcpu, gva_t ea)
{
struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
unsigned int ia;
int esel, tlbsel;
- gva_t ea;
-
- ea = ((ra) ? kvmppc_get_gpr(vcpu, ra) : 0) + kvmppc_get_gpr(vcpu, rb);
ia = (ea >> 2) & 0x1;
@@ -731,14 +728,9 @@ static void tlbilx_all(struct kvmppc_vcpu_e500 *vcpu_e500, int tlbsel,
}
static void tlbilx_one(struct kvmppc_vcpu_e500 *vcpu_e500, int pid,
- int ra, int rb)
+ gva_t ea)
{
int tlbsel, esel;
- gva_t ea;
-
- ea = kvmppc_get_gpr(&vcpu_e500->vcpu, rb);
- if (ra)
- ea += kvmppc_get_gpr(&vcpu_e500->vcpu, ra);
for (tlbsel = 0; tlbsel < 2; tlbsel++) {
esel = kvmppc_e500_tlb_index(vcpu_e500, ea, tlbsel, pid, -1);
@@ -750,7 +742,7 @@ static void tlbilx_one(struct kvmppc_vcpu_e500 *vcpu_e500, int pid,
}
}
-int kvmppc_e500_emul_tlbilx(struct kvm_vcpu *vcpu, int rt, int ra, int rb)
+int kvmppc_e500_emul_tlbilx(struct kvm_vcpu *vcpu, int rt, gva_t ea)
{
struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
int pid = get_cur_spid(vcpu);
@@ -759,7 +751,7 @@ int kvmppc_e500_emul_tlbilx(struct kvm_vcpu *vcpu, int rt, int ra, int rb)
tlbilx_all(vcpu_e500, 0, pid, rt);
tlbilx_all(vcpu_e500, 1, pid, rt);
} else if (rt == 3) {
- tlbilx_one(vcpu_e500, pid, ra, rb);
+ tlbilx_one(vcpu_e500, pid, ea);
}
return EMULATE_DONE;
@@ -784,16 +776,13 @@ int kvmppc_e500_emul_tlbre(struct kvm_vcpu *vcpu)
return EMULATE_DONE;
}
-int kvmppc_e500_emul_tlbsx(struct kvm_vcpu *vcpu, int rb)
+int kvmppc_e500_emul_tlbsx(struct kvm_vcpu *vcpu, gva_t ea)
{
struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
int as = !!get_cur_sas(vcpu);
unsigned int pid = get_cur_spid(vcpu);
int esel, tlbsel;
struct kvm_book3e_206_tlb_entry *gtlbe = NULL;
- gva_t ea;
-
- ea = kvmppc_get_gpr(vcpu, rb);
for (tlbsel = 0; tlbsel < 2; tlbsel++) {
esel = kvmppc_e500_tlb_index(vcpu_e500, ea, tlbsel, pid, as);
--
1.7.4.1
--
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