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fix for hosts resuming from software suspend (initial patch by John Coiner)

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1884 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2006-05-01 12:43:29 +00:00
parent 07de1eaa9d
commit eade0f192e
1 changed files with 10 additions and 1 deletions
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11
vl.c
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@ -558,6 +558,7 @@ int64_t cpu_get_real_ticks(void)
#error unsupported CPU
#endif
static int64_t cpu_ticks_prev;
static int64_t cpu_ticks_offset;
static int cpu_ticks_enabled;
@ -566,7 +567,15 @@ static inline int64_t cpu_get_ticks(void)
if (!cpu_ticks_enabled) {
return cpu_ticks_offset;
} else {
return cpu_get_real_ticks() + cpu_ticks_offset;
int64_t ticks;
ticks = cpu_get_real_ticks();
if (cpu_ticks_prev > ticks) {
/* Note: non increasing ticks may happen if the host uses
software suspend */
cpu_ticks_offset += cpu_ticks_prev - ticks;
}
cpu_ticks_prev = ticks;
return ticks + cpu_ticks_offset;
}
}