Re: [Qemu-devel] [PATCH 2/5] pseries: Add spapr_rtc_read() helper function

[David Gibson <david@gibson.dropbear.id.au>]

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On Tue, Dec 16, 2014 at 02:01:29AM +0100, Alexander Graf wrote:
> 
> 
> On 16.12.14 01:43, David Gibson wrote:
> > The virtual RTC time is used in two places in the pseries machine.  First
> > is in the RTAS get-time-of-day function which returns the RTC time to the
> > guest.  Second is in the spapr events code which is used to timestamp
> > event messages from the hypervisor to the guest.
> > 
> > Currently both call qemu_get_timedate() directly, but we want to change
> > that so we can properly handle the various -rtc options.  In preparation,
> > create a helper function to return the virtual RTC time.
> > 
> > Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
> > ---
> >  hw/ppc/spapr_events.c  |  2 +-
> >  hw/ppc/spapr_rtc.c     | 12 ++++++++++--
> >  include/hw/ppc/spapr.h |  1 +
> >  3 files changed, 12 insertions(+), 3 deletions(-)
> > 
> > diff --git a/hw/ppc/spapr_events.c b/hw/ppc/spapr_events.c
> > index 1b6157d..80c0266 100644
> > --- a/hw/ppc/spapr_events.c
> > +++ b/hw/ppc/spapr_events.c
> > @@ -246,7 +246,7 @@ static void spapr_powerdown_req(Notifier *n, void *opaque)
> >      maina->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_MAINA);
> >      maina->hdr.section_length = cpu_to_be16(sizeof(*maina));
> >      /* FIXME: section version, subtype and creator id? */
> > -    qemu_get_timedate(&tm, spapr->rtc_offset);
> > +    spapr_rtc_read(spapr, &tm, NULL);
> >      year = tm.tm_year + 1900;
> >      maina->creation_date = cpu_to_be32((to_bcd(year / 100) << 24)
> >                                         | (to_bcd(year % 100) << 16)
> > diff --git a/hw/ppc/spapr_rtc.c b/hw/ppc/spapr_rtc.c
> > index e290ac0..9ccefbc 100644
> > --- a/hw/ppc/spapr_rtc.c
> > +++ b/hw/ppc/spapr_rtc.c
> > @@ -29,19 +29,27 @@
> >  #include "hw/ppc/spapr.h"
> >  #include "qapi-event.h"
> >  
> > +void spapr_rtc_read(sPAPREnvironment *spapr, struct tm *tm, uint32_t *ns)
> > +{
> > +    qemu_get_timedate(tm, spapr->rtc_offset);
> > +    if (ns)
> 
> checkpatch? ;)

Sod.  It's been too long since I was doing much upstream work :).

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

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