[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v2 7/7] xen/arm: set the system time in Xen via the XENPF_settime64 hypercall
On Tuesday 10 November 2015 11:57:55 Stefano Stabellini wrote: > + op.u.settime64.nsecs = now.tv_nsec; > + op.u.settime64.system_time = arch_timer_read_counter() * > (u64)NSEC_PER_SEC; > + do_div(op.u.settime64.system_time, arch_timer_get_rate()); NSEC_PER_SEC is a large number, doesn't that multiplication overflow the 64-bit system_time variable? > + printk("GTOD: Setting to %llu.%u at %llu\n", %llu.%09u so you get the leading zeroes. > + op.u.settime64.secs, > + op.u.settime64.nsecs, > + op.u.settime64.system_time); > + (void)HYPERVISOR_platform_op(&op); Arnd _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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