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-rw-r--r--cpu-defs.h3
-rw-r--r--cpu-exec.c13
2 files changed, 14 insertions, 2 deletions
diff --git a/cpu-defs.h b/cpu-defs.h
index c308253..e095f85 100644
--- a/cpu-defs.h
+++ b/cpu-defs.h
@@ -74,7 +74,7 @@ typedef unsigned long ram_addr_t;
#define EXCP_INTERRUPT 0x10000 /* async interruption */
#define EXCP_HLT 0x10001 /* hlt instruction reached */
#define EXCP_DEBUG 0x10002 /* cpu stopped after a breakpoint or singlestep */
-
+#define EXCP_HALTED 0x10003 /* cpu is halted (waiting for external event) */
#define MAX_BREAKPOINTS 32
#define TB_JMP_CACHE_BITS 12
@@ -96,7 +96,6 @@ typedef struct CPUTLBEntry {
#define CPU_COMMON \
struct TranslationBlock *current_tb; /* currently executing TB */ \
- int cpu_halted; /* TRUE if cpu is halted (sleep mode) */ \
/* soft mmu support */ \
/* in order to avoid passing too many arguments to the memory \
write helpers, we store some rarely used information in the CPU \
diff --git a/cpu-exec.c b/cpu-exec.c
index 72e3268..de1fff2 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -251,6 +251,19 @@ int cpu_exec(CPUState *env1)
TranslationBlock *tb;
uint8_t *tc_ptr;
+#if defined(TARGET_I386)
+ /* handle exit of HALTED state */
+ if (env1->hflags & HF_HALTED_MASK) {
+ /* disable halt condition */
+ if ((env1->interrupt_request & CPU_INTERRUPT_HARD) &&
+ (env1->eflags & IF_MASK)) {
+ env1->hflags &= ~HF_HALTED_MASK;
+ } else {
+ return EXCP_HALTED;
+ }
+ }
+#endif
+
cpu_single_env = env1;
/* first we save global registers */
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