diff options
| -rw-r--r-- | linux-user/arm/cpu_loop.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/linux-user/arm/cpu_loop.c b/linux-user/arm/cpu_loop.c index a992423257..b404117ff3 100644 --- a/linux-user/arm/cpu_loop.c +++ b/linux-user/arm/cpu_loop.c @@ -117,8 +117,9 @@ static void arm_kernel_cmpxchg32_helper(CPUARMState *env) { uint32_t oldval, newval, val, addr, cpsr, *host_addr; - oldval = env->regs[0]; - newval = env->regs[1]; + /* Swap if host != guest endianness, for the host cmpxchg below */ + oldval = tswap32(env->regs[0]); + newval = tswap32(env->regs[1]); addr = env->regs[2]; mmap_lock(); @@ -174,6 +175,10 @@ static void arm_kernel_cmpxchg64_helper(CPUARMState *env) return; } + /* Swap if host != guest endianness, for the host cmpxchg below */ + oldval = tswap64(oldval); + newval = tswap64(newval); + #ifdef CONFIG_ATOMIC64 val = qatomic_cmpxchg__nocheck(host_addr, oldval, newval); cpsr = (val == oldval) * CPSR_C; |