From b8f954fea019801370954fe85c32df49edf6397d Mon Sep 17 00:00:00 2001 From: Lei Li Date: Fri, 15 Mar 2013 17:29:05 +0800 Subject: qga: add windows implementation for guest-set-time Signed-off-by: Lei Li Reviewed-by: Eric Blake Reviewed-by: Michael Roth Signed-off-by: Michael Roth --- qga/commands-win32.c | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) (limited to 'qga/commands-win32.c') diff --git a/qga/commands-win32.c b/qga/commands-win32.c index d98e3eeff0..24e4ad0319 100644 --- a/qga/commands-win32.c +++ b/qga/commands-win32.c @@ -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) -- cgit v1.2.1