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-rw-r--r--target/i386/tcg/sysemu/excp_helper.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/target/i386/tcg/sysemu/excp_helper.c b/target/i386/tcg/sysemu/excp_helper.c
index 02d3486421..b1f40040f8 100644
--- a/target/i386/tcg/sysemu/excp_helper.c
+++ b/target/i386/tcg/sysemu/excp_helper.c
@@ -107,6 +107,10 @@ static bool ptw_setl_slow(const PTETranslate *in, uint32_t old, uint32_t new)
{
uint32_t cmp;
+ CPUState *cpu = env_cpu(in->env);
+ /* We are in cpu_exec, and start_exclusive can't be called directly.*/
+ g_assert(cpu->running);
+ cpu_exec_end(cpu);
/* Does x86 really perform a rmw cycle on mmio for ptw? */
start_exclusive();
cmp = cpu_ldl_mmuidx_ra(in->env, in->gaddr, in->ptw_idx, 0);
@@ -114,6 +118,7 @@ static bool ptw_setl_slow(const PTETranslate *in, uint32_t old, uint32_t new)
cpu_stl_mmuidx_ra(in->env, in->gaddr, new, in->ptw_idx, 0);
}
end_exclusive();
+ cpu_exec_start(cpu);
return cmp == old;
}