diff options
| author | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2005-11-23 21:02:53 +0000 |
|---|---|---|
| committer | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2005-11-23 21:02:53 +0000 |
| commit | 5a1e3cfcb0f1b7108542d04fababd433938bf8fe (patch) | |
| tree | 6108c291f143fb8b872d85cd194b6225af114659 | |
| parent | d2ac63e03e21b1a4be24615792b36ec4e953333b (diff) | |
| download | qemu-5a1e3cfcb0f1b7108542d04fababd433938bf8fe.tar.gz | |
better halted state support
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1652 c046a42c-6fe2-441c-8c8c-71466251a162
| -rw-r--r-- | cpu-defs.h | 3 | ||||
| -rw-r--r-- | cpu-exec.c | 13 |
2 files changed, 14 insertions, 2 deletions
diff --git a/cpu-defs.h b/cpu-defs.h index c308253813..e095f8566f 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 72e32684a1..de1fff2122 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 */ |