On Fri, May 23, 2014 at 11:36:56PM +0200, Paolo Bonzini wrote:
You can get the current time via the qom-get command, and then follow the same algorithm as QEMU:
time_t seconds;
if (rtc_date_offset == -1) { if (rtc_utc) { seconds = mktimegm(tm); } else { struct tm tmp = *tm; tmp.tm_isdst = -1; /* use timezone to figure it out */ seconds = mktime(&tmp); } } else { seconds = mktimegm(tm) + rtc_date_offset; } return seconds - time(NULL);
Unfortunately the QOM path to the RTC device is not stable. We can add a /machine/rtc link, and if the PPC guys implement the link and current-time property as well, the same mechanism can work for any board.
Paolo
I like that idea. Questions: - What guarantees are there that the interface is stable? (you can argue that "now it is"). - Perhaps add /machine/stable/ path to contain stable links ? - How do i go about adding a link to a device again?