[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Minios-devel] [PATCH] mini-os: Fix date issue in gettimeofday function
CC Samuel On Fri, Apr 08, 2016 at 11:48:02AM +0200, David Vercauteren wrote: > From: dvercaut <dvercaut.Vercauteren@xxxxxxxx> > > If an application makes use of the monotonic clock function before > the wallclock is updated (timer_handler function was not yet called), > the struct shadow_ts_version will not contain the correct value. > As a result the application will not display the correct date. > > Signed-off-by: David Vercauteren <dvercauteren@xxxxxxxxxx> > --- > arch/x86/time.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/arch/x86/time.c b/arch/x86/time.c > index 2c8d033..18d30b3 100644 > --- a/arch/x86/time.c > +++ b/arch/x86/time.c > @@ -58,6 +58,7 @@ static uint32_t shadow_ts_version; > > static struct shadow_time_info shadow; > > +static void update_wallclock(void); > > #ifndef rmb > #define rmb() __asm__ __volatile__ ("lock; addl $0,0(%%esp)": : :"memory") > @@ -141,6 +142,7 @@ static void get_time_values_from_xen(void) > } > while ((src->version & 1) | (shadow.version ^ src->version)); > > + update_wallclock(); > shadow.tsc_to_usec_mul = shadow.tsc_to_nsec_mul / 1000; > } > > @@ -217,7 +219,6 @@ void block_domain(s_time_t until) > static void timer_handler(evtchn_port_t ev, struct pt_regs *regs, void *ign) > { > get_time_values_from_xen(); > - update_wallclock(); > } > > > -- > 2.1.4 > > > _______________________________________________ > Minios-devel mailing list > Minios-devel@xxxxxxxxxxxxxxxxxxxx > http://lists.xenproject.org/cgi-bin/mailman/listinfo/minios-devel _______________________________________________ Minios-devel mailing list Minios-devel@xxxxxxxxxxxxxxxxxxxx http://lists.xenproject.org/cgi-bin/mailman/listinfo/minios-devel
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