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-rw-r--r--linux-user/main.c25
-rw-r--r--target-arm/cpu.h8
-rw-r--r--target-arm/machine.c12
-rw-r--r--target-arm/translate.c65
4 files changed, 64 insertions, 46 deletions
diff --git a/linux-user/main.c b/linux-user/main.c
index c0df8b5cd4..20f9832d38 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -589,16 +589,21 @@ do_kernel_trap(CPUARMState *env)
static int do_strex(CPUARMState *env)
{
- uint32_t val;
+ uint64_t val;
int size;
int rc = 1;
int segv = 0;
uint32_t addr;
start_exclusive();
- addr = env->exclusive_addr;
- if (addr != env->exclusive_test) {
+ if (env->exclusive_addr != env->exclusive_test) {
goto fail;
}
+ /* We know we're always AArch32 so the address is in uint32_t range
+ * unless it was the -1 exclusive-monitor-lost value (which won't
+ * match exclusive_test above).
+ */
+ assert(extract64(env->exclusive_addr, 32, 32) == 0);
+ addr = env->exclusive_addr;
size = env->exclusive_info & 0xf;
switch (size) {
case 0:
@@ -618,19 +623,19 @@ static int do_strex(CPUARMState *env)
env->cp15.c6_data = addr;
goto done;
}
- if (val != env->exclusive_val) {
- goto fail;
- }
if (size == 3) {
- segv = get_user_u32(val, addr + 4);
+ uint32_t valhi;
+ segv = get_user_u32(valhi, addr + 4);
if (segv) {
env->cp15.c6_data = addr + 4;
goto done;
}
- if (val != env->exclusive_high) {
- goto fail;
- }
+ val = deposit64(val, 32, 32, valhi);
+ }
+ if (val != env->exclusive_val) {
+ goto fail;
}
+
val = env->regs[(env->exclusive_info >> 8) & 0xf];
switch (size) {
case 0:
diff --git a/target-arm/cpu.h b/target-arm/cpu.h
index 983aa31bef..6fbbab2c7f 100644
--- a/target-arm/cpu.h
+++ b/target-arm/cpu.h
@@ -278,11 +278,11 @@ typedef struct CPUARMState {
float_status fp_status;
float_status standard_fp_status;
} vfp;
- uint32_t exclusive_addr;
- uint32_t exclusive_val;
- uint32_t exclusive_high;
+ uint64_t exclusive_addr;
+ uint64_t exclusive_val;
+ uint64_t exclusive_high;
#if defined(CONFIG_USER_ONLY)
- uint32_t exclusive_test;
+ uint64_t exclusive_test;
uint32_t exclusive_info;
#endif
diff --git a/target-arm/machine.c b/target-arm/machine.c
index 74f010f637..8f9e7d4d28 100644
--- a/target-arm/machine.c
+++ b/target-arm/machine.c
@@ -222,9 +222,9 @@ static int cpu_post_load(void *opaque, int version_id)
const VMStateDescription vmstate_arm_cpu = {
.name = "cpu",
- .version_id = 13,
- .minimum_version_id = 13,
- .minimum_version_id_old = 13,
+ .version_id = 14,
+ .minimum_version_id = 14,
+ .minimum_version_id_old = 14,
.pre_save = cpu_pre_save,
.post_load = cpu_post_load,
.fields = (VMStateField[]) {
@@ -253,9 +253,9 @@ const VMStateDescription vmstate_arm_cpu = {
VMSTATE_VARRAY_INT32(cpreg_vmstate_values, ARMCPU,
cpreg_vmstate_array_len,
0, vmstate_info_uint64, uint64_t),
- VMSTATE_UINT32(env.exclusive_addr, ARMCPU),
- VMSTATE_UINT32(env.exclusive_val, ARMCPU),
- VMSTATE_UINT32(env.exclusive_high, ARMCPU),
+ VMSTATE_UINT64(env.exclusive_addr, ARMCPU),
+ VMSTATE_UINT64(env.exclusive_val, ARMCPU),
+ VMSTATE_UINT64(env.exclusive_high, ARMCPU),
VMSTATE_UINT64(env.features, ARMCPU),
VMSTATE_TIMER(gt_timer[GTIMER_PHYS], ARMCPU),
VMSTATE_TIMER(gt_timer[GTIMER_VIRT], ARMCPU),
diff --git a/target-arm/translate.c b/target-arm/translate.c
index 8bfe95007e..4387547a9c 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -61,11 +61,10 @@ TCGv_ptr cpu_env;
static TCGv_i64 cpu_V0, cpu_V1, cpu_M0;
static TCGv_i32 cpu_R[16];
static TCGv_i32 cpu_CF, cpu_NF, cpu_VF, cpu_ZF;
-static TCGv_i32 cpu_exclusive_addr;
-static TCGv_i32 cpu_exclusive_val;
-static TCGv_i32 cpu_exclusive_high;
+static TCGv_i64 cpu_exclusive_addr;
+static TCGv_i64 cpu_exclusive_val;
#ifdef CONFIG_USER_ONLY
-static TCGv_i32 cpu_exclusive_test;
+static TCGv_i64 cpu_exclusive_test;
static TCGv_i32 cpu_exclusive_info;
#endif
@@ -96,14 +95,12 @@ void arm_translate_init(void)
cpu_VF = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUARMState, VF), "VF");
cpu_ZF = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUARMState, ZF), "ZF");
- cpu_exclusive_addr = tcg_global_mem_new_i32(TCG_AREG0,
+ cpu_exclusive_addr = tcg_global_mem_new_i64(TCG_AREG0,
offsetof(CPUARMState, exclusive_addr), "exclusive_addr");
- cpu_exclusive_val = tcg_global_mem_new_i32(TCG_AREG0,
+ cpu_exclusive_val = tcg_global_mem_new_i64(TCG_AREG0,
offsetof(CPUARMState, exclusive_val), "exclusive_val");
- cpu_exclusive_high = tcg_global_mem_new_i32(TCG_AREG0,
- offsetof(CPUARMState, exclusive_high), "exclusive_high");
#ifdef CONFIG_USER_ONLY
- cpu_exclusive_test = tcg_global_mem_new_i32(TCG_AREG0,
+ cpu_exclusive_test = tcg_global_mem_new_i64(TCG_AREG0,
offsetof(CPUARMState, exclusive_test), "exclusive_test");
cpu_exclusive_info = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUARMState, exclusive_info), "exclusive_info");
@@ -6758,30 +6755,34 @@ static void gen_load_exclusive(DisasContext *s, int rt, int rt2,
default:
abort();
}
- tcg_gen_mov_i32(cpu_exclusive_val, tmp);
- store_reg(s, rt, tmp);
+
if (size == 3) {
TCGv_i32 tmp2 = tcg_temp_new_i32();
+ TCGv_i32 tmp3 = tcg_temp_new_i32();
+
tcg_gen_addi_i32(tmp2, addr, 4);
- tmp = tcg_temp_new_i32();
- gen_aa32_ld32u(tmp, tmp2, IS_USER(s));
+ gen_aa32_ld32u(tmp3, tmp2, IS_USER(s));
tcg_temp_free_i32(tmp2);
- tcg_gen_mov_i32(cpu_exclusive_high, tmp);
- store_reg(s, rt2, tmp);
+ tcg_gen_concat_i32_i64(cpu_exclusive_val, tmp, tmp3);
+ store_reg(s, rt2, tmp3);
+ } else {
+ tcg_gen_extu_i32_i64(cpu_exclusive_val, tmp);
}
- tcg_gen_mov_i32(cpu_exclusive_addr, addr);
+
+ store_reg(s, rt, tmp);
+ tcg_gen_extu_i32_i64(cpu_exclusive_addr, addr);
}
static void gen_clrex(DisasContext *s)
{
- tcg_gen_movi_i32(cpu_exclusive_addr, -1);
+ tcg_gen_movi_i64(cpu_exclusive_addr, -1);
}
#ifdef CONFIG_USER_ONLY
static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2,
TCGv_i32 addr, int size)
{
- tcg_gen_mov_i32(cpu_exclusive_test, addr);
+ tcg_gen_extu_i32_i64(cpu_exclusive_test, addr);
tcg_gen_movi_i32(cpu_exclusive_info,
size | (rd << 4) | (rt << 8) | (rt2 << 12));
gen_exception_insn(s, 4, EXCP_STREX);
@@ -6791,6 +6792,7 @@ static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2,
TCGv_i32 addr, int size)
{
TCGv_i32 tmp;
+ TCGv_i64 val64, extaddr;
int done_label;
int fail_label;
@@ -6802,7 +6804,11 @@ static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2,
} */
fail_label = gen_new_label();
done_label = gen_new_label();
- tcg_gen_brcond_i32(TCG_COND_NE, addr, cpu_exclusive_addr, fail_label);
+ extaddr = tcg_temp_new_i64();
+ tcg_gen_extu_i32_i64(extaddr, addr);
+ tcg_gen_brcond_i64(TCG_COND_NE, extaddr, cpu_exclusive_addr, fail_label);
+ tcg_temp_free_i64(extaddr);
+
tmp = tcg_temp_new_i32();
switch (size) {
case 0:
@@ -6818,17 +6824,24 @@ static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2,
default:
abort();
}
- tcg_gen_brcond_i32(TCG_COND_NE, tmp, cpu_exclusive_val, fail_label);
- tcg_temp_free_i32(tmp);
+
+ val64 = tcg_temp_new_i64();
if (size == 3) {
TCGv_i32 tmp2 = tcg_temp_new_i32();
+ TCGv_i32 tmp3 = tcg_temp_new_i32();
tcg_gen_addi_i32(tmp2, addr, 4);
- tmp = tcg_temp_new_i32();
- gen_aa32_ld32u(tmp, tmp2, IS_USER(s));
+ gen_aa32_ld32u(tmp3, tmp2, IS_USER(s));
tcg_temp_free_i32(tmp2);
- tcg_gen_brcond_i32(TCG_COND_NE, tmp, cpu_exclusive_high, fail_label);
- tcg_temp_free_i32(tmp);
+ tcg_gen_concat_i32_i64(val64, tmp, tmp3);
+ tcg_temp_free_i32(tmp3);
+ } else {
+ tcg_gen_extu_i32_i64(val64, tmp);
}
+ tcg_temp_free_i32(tmp);
+
+ tcg_gen_brcond_i64(TCG_COND_NE, val64, cpu_exclusive_val, fail_label);
+ tcg_temp_free_i64(val64);
+
tmp = load_reg(s, rt);
switch (size) {
case 0:
@@ -6856,7 +6869,7 @@ static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2,
gen_set_label(fail_label);
tcg_gen_movi_i32(cpu_R[rd], 1);
gen_set_label(done_label);
- tcg_gen_movi_i32(cpu_exclusive_addr, -1);
+ tcg_gen_movi_i64(cpu_exclusive_addr, -1);
}
#endif
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-26 20:05:46 +0000