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qga: add windows implementation for guest-set-time

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Signed-off-by: Lei Li <lilei@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This commit is contained in:
Lei Li 2013-03-15 17:29:05 +08:00 committed by Michael Roth
parent 3f2a6087de
commit b8f954fea0
1 changed files with 28 additions and 1 deletions
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29
qga/commands-win32.c
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@ -309,7 +309,34 @@ int64_t qmp_guest_get_time(Error **errp)
void qmp_guest_set_time(int64_t time_ns, Error **errp)
{
error_set(errp, QERR_UNSUPPORTED);
SYSTEMTIME ts;
FILETIME tf;
LONGLONG time;
if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) {
error_setg(errp, "Time %" PRId64 "is invalid", time_ns);
return;
}
time = time_ns / 100 + W32_FT_OFFSET;
tf.dwLowDateTime = (DWORD) time;
tf.dwHighDateTime = (DWORD) (time >> 32);
if (!FileTimeToSystemTime(&tf, &ts)) {
error_setg(errp, "Failed to convert system time %d", (int)GetLastError());
return;
}
acquire_privilege(SE_SYSTEMTIME_NAME, errp);
if (error_is_set(errp)) {
return;
}
if (!SetSystemTime(&ts)) {
error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError());
return;
}
}
GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)