From: "Bruno Larsen (billionai)" <bruno.lar...@eldorado.org.br>
Changed hash32 address translation to use the supplied mmu_idx, instead
of using what was stored in the msr, for parity purposes (radix64
already uses that) and for conceptual correctness, all the relevant
functions should always use the supplied mmu_idx, as there are no
guarantees that the mmu_idx stored in the CPU variable will not desync.
Signed-off-by: Bruno Larsen (billionai) <bruno.lar...@eldorado.org.br>
Reviewed-by: David Gibson <da...@gibson.dropbear.id.au>
Message-Id: <20210706150316.21005-3-bruno.lar...@eldorado.org.br>
Signed-off-by: David Gibson <da...@gibson.dropbear.id.au>
---
target/ppc/mmu-hash32.c | 40 +++++++++++++++++++---------------------
target/ppc/mmu-hash32.h | 2 +-
target/ppc/mmu_helper.c | 2 +-
3 files changed, 21 insertions(+), 23 deletions(-)
diff --git a/target/ppc/mmu-hash32.c b/target/ppc/mmu-hash32.c
index 4edd5ffe14..3957aab2dc 100644
--- a/target/ppc/mmu-hash32.c
+++ b/target/ppc/mmu-hash32.c
@@ -25,6 +25,7 @@
#include "kvm_ppc.h"
#include "internal.h"
#include "mmu-hash32.h"
+#include "mmu-books.h"
#include "exec/log.h"
/* #define DEBUG_BATS */
@@ -86,25 +87,22 @@ static int ppc_hash32_pp_prot(int key, int pp, int nx)
return prot;
}
-static int ppc_hash32_pte_prot(PowerPCCPU *cpu,
+static int ppc_hash32_pte_prot(int mmu_idx,
target_ulong sr, ppc_hash_pte32_t pte)
{
- CPUPPCState *env = &cpu->env;
unsigned pp, key;
- key = !!(msr_pr ? (sr & SR32_KP) : (sr & SR32_KS));
+ key = !!(mmuidx_pr(mmu_idx) ? (sr & SR32_KP) : (sr & SR32_KS));
pp = pte.pte1 & HPTE32_R_PP;
return ppc_hash32_pp_prot(key, pp, !!(sr & SR32_NX));
}
-static target_ulong hash32_bat_size(PowerPCCPU *cpu,
+static target_ulong hash32_bat_size(int mmu_idx,
target_ulong batu, target_ulong batl)
{
- CPUPPCState *env = &cpu->env;
-
- if ((msr_pr && !(batu & BATU32_VP))
- || (!msr_pr && !(batu & BATU32_VS))) {
+ if ((mmuidx_pr(mmu_idx) && !(batu & BATU32_VP))
+ || (!mmuidx_pr(mmu_idx) && !(batu & BATU32_VS))) {
return 0;
}
@@ -137,14 +135,13 @@ static target_ulong hash32_bat_601_size(PowerPCCPU *cpu,
return BATU32_BEPI & ~((batl & BATL32_601_BL) << 17);
}
-static int hash32_bat_601_prot(PowerPCCPU *cpu,
+static int hash32_bat_601_prot(int mmu_idx,
target_ulong batu, target_ulong batl)
{
- CPUPPCState *env = &cpu->env;
int key, pp;
pp = batu & BATU32_601_PP;
- if (msr_pr == 0) {
+ if (mmuidx_pr(mmu_idx) == 0) {
key = !!(batu & BATU32_601_KS);
} else {
key = !!(batu & BATU32_601_KP);
@@ -153,7 +150,8 @@ static int hash32_bat_601_prot(PowerPCCPU *cpu,
}
static hwaddr ppc_hash32_bat_lookup(PowerPCCPU *cpu, target_ulong ea,
- MMUAccessType access_type, int *prot)
+ MMUAccessType access_type, int *prot,
+ int mmu_idx)
{
CPUPPCState *env = &cpu->env;
target_ulong *BATlt, *BATut;
@@ -177,7 +175,7 @@ static hwaddr ppc_hash32_bat_lookup(PowerPCCPU *cpu,
target_ulong ea,
if (unlikely(env->mmu_model == POWERPC_MMU_601)) {
mask = hash32_bat_601_size(cpu, batu, batl);
} else {
- mask = hash32_bat_size(cpu, batu, batl);
+ mask = hash32_bat_size(mmu_idx, batu, batl);
}
LOG_BATS("%s: %cBAT%d v " TARGET_FMT_lx " BATu " TARGET_FMT_lx
" BATl " TARGET_FMT_lx "\n", __func__,
@@ -187,7 +185,7 @@ static hwaddr ppc_hash32_bat_lookup(PowerPCCPU *cpu,
target_ulong ea,
hwaddr raddr = (batl & mask) | (ea & ~mask);
if (unlikely(env->mmu_model == POWERPC_MMU_601)) {
- *prot = hash32_bat_601_prot(cpu, batu, batl);
+ *prot = hash32_bat_601_prot(mmu_idx, batu, batl);
} else {
*prot = hash32_bat_prot(cpu, batu, batl);
}
@@ -224,12 +222,12 @@ static hwaddr ppc_hash32_bat_lookup(PowerPCCPU *cpu,
target_ulong ea,
static bool ppc_hash32_direct_store(PowerPCCPU *cpu, target_ulong sr,
target_ulong eaddr,
MMUAccessType access_type,
- hwaddr *raddr, int *prot,
+ hwaddr *raddr, int *prot, int mmu_idx,
bool guest_visible)
{
CPUState *cs = CPU(cpu);
CPUPPCState *env = &cpu->env;
- int key = !!(msr_pr ? (sr & SR32_KP) : (sr & SR32_KS));
+ int key = !!(mmuidx_pr(mmu_idx) ? (sr & SR32_KP) : (sr & SR32_KS));
qemu_log_mask(CPU_LOG_MMU, "direct store...\n");
@@ -428,7 +426,7 @@ static hwaddr ppc_hash32_pte_raddr(target_ulong sr,
ppc_hash_pte32_t pte,
}
bool ppc_hash32_xlate(PowerPCCPU *cpu, vaddr eaddr, MMUAccessType access_type,
- hwaddr *raddrp, int *psizep, int *protp,
+ hwaddr *raddrp, int *psizep, int *protp, int mmu_idx,
bool guest_visible)
{
CPUState *cs = CPU(cpu);
@@ -444,7 +442,7 @@ bool ppc_hash32_xlate(PowerPCCPU *cpu, vaddr eaddr,
MMUAccessType access_type,
*psizep = TARGET_PAGE_BITS;
/* 1. Handle real mode accesses */
- if (access_type == MMU_INST_FETCH ? !msr_ir : !msr_dr) {
+ if (mmuidx_real(mmu_idx)) {
/* Translation is off */
*raddrp = eaddr;
*protp = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
@@ -455,7 +453,7 @@ bool ppc_hash32_xlate(PowerPCCPU *cpu, vaddr eaddr,
MMUAccessType access_type,
/* 2. Check Block Address Translation entries (BATs) */
if (env->nb_BATs != 0) {
- raddr = ppc_hash32_bat_lookup(cpu, eaddr, access_type, protp);
+ raddr = ppc_hash32_bat_lookup(cpu, eaddr, access_type, protp, mmu_idx);
if (raddr != -1) {
if (need_prot & ~*protp) {
if (guest_visible) {
@@ -486,7 +484,7 @@ bool ppc_hash32_xlate(PowerPCCPU *cpu, vaddr eaddr,
MMUAccessType access_type,
/* 4. Handle direct store segments */
if (sr & SR32_T) {
return ppc_hash32_direct_store(cpu, sr, eaddr, access_type,
- raddrp, protp, guest_visible);
+ raddrp, protp, mmu_idx, guest_visible);
}
/* 5. Check for segment level no-execute violation */
@@ -523,7 +521,7 @@ bool ppc_hash32_xlate(PowerPCCPU *cpu, vaddr eaddr,
MMUAccessType access_type,
/* 7. Check access permissions */
- prot = ppc_hash32_pte_prot(cpu, sr, pte);
+ prot = ppc_hash32_pte_prot(mmu_idx, sr, pte);
if (need_prot & ~prot) {
/* Access right violation */
diff --git a/target/ppc/mmu-hash32.h b/target/ppc/mmu-hash32.h
index c9f584b8ee..3892b693d6 100644
--- a/target/ppc/mmu-hash32.h
+++ b/target/ppc/mmu-hash32.h
@@ -5,7 +5,7 @@
hwaddr get_pteg_offset32(PowerPCCPU *cpu, hwaddr hash);
bool ppc_hash32_xlate(PowerPCCPU *cpu, vaddr eaddr, MMUAccessType access_type,
- hwaddr *raddrp, int *psizep, int *protp,
+ hwaddr *raddrp, int *psizep, int *protp, int mmu_idx,
bool guest_visible);
/*
diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c
index 819ee27b62..47e9f9529e 100644
--- a/target/ppc/mmu_helper.c
+++ b/target/ppc/mmu_helper.c
@@ -2914,7 +2914,7 @@ static bool ppc_xlate(PowerPCCPU *cpu, vaddr eaddr,
MMUAccessType access_type,
case POWERPC_MMU_32B:
case POWERPC_MMU_601:
return ppc_hash32_xlate(cpu, eaddr, access_type,
- raddrp, psizep, protp, guest_visible);
+ raddrp, psizep, protp, mmu_idx, guest_visible);
default:
return ppc_jumbo_xlate(cpu, eaddr, access_type, raddrp,
--
2.31.1
