From: David Gibson <david@gibson.dropbear.id.au>
To: agraf@suse.de
Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [Qemu-ppc] [PATCH 03/15] pseries: Implement qemu initiated shutdowns using EPOW events
Date: Mon, 22 Oct 2012 13:15:08 +1100 [thread overview]
Message-ID: <20121022021508.GE28515@truffula.fritz.box> (raw)
In-Reply-To: <1350539437-535-4-git-send-email-david@gibson.dropbear.id.au>
On Thu, Oct 18, 2012 at 04:50:25PM +1100, David Gibson wrote:
> At present, using 'system_powerdown' from the monitor or otherwise
> instructing qemu to (cleanly) shut down a pseries guest will not work,
> because we did not have a method of signalling the shutdown request to the
> guest.
>
> PAPR does include a usable mechanism for this, though it is rather more
> involved than the equivalent on x86. This involves sending an EPOW
> (Environmental and POwer Warning) event through the PAPR event and error
> logging mechanism, which also has a number of other functions.
>
> This patch implements just enough of the event/error logging functionality
> to be able to send a shutdown event to the guest. At least with modern
> guest kernels and a userspace that is up and running, this means that
> system_powerdown from the qemu monitor should now work correctly on pseries
> guests.
>
> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Ugh, don't apply this version. When I applied Blue's changes I didn't
test properly and completely broke it.
--
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
next prev parent reply other threads:[~2012-10-22 2:21 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-18 5:50 [Qemu-devel] [0/15] pseries patch queue David Gibson
2012-10-18 5:50 ` [Qemu-devel] [PATCH 01/15] pseries: Don't allow duplicate registration of hcalls or RTAS calls David Gibson
2012-10-18 5:50 ` [Qemu-devel] [PATCH 02/15] target-ppc: Rework storage of VPA registration state David Gibson
2012-10-18 5:50 ` [Qemu-devel] [PATCH 03/15] pseries: Implement qemu initiated shutdowns using EPOW events David Gibson
2012-10-22 2:15 ` David Gibson [this message]
2012-10-18 5:50 ` [Qemu-devel] [PATCH 04/15] target-ppc: Extend FPU state for newer POWER CPUs David Gibson
2012-10-18 5:50 ` [Qemu-devel] [PATCH 05/15] pseries: Clean up inconsistent variable name in xics.c David Gibson
2012-10-18 5:50 ` [Qemu-devel] [PATCH 06/15] pseries: Use #define for XICS base irq number David Gibson
2012-10-18 5:50 ` [Qemu-devel] [PATCH 07/15] pseries: Cleanup duplications of ics_valid_irq() code David Gibson
2012-10-18 5:50 ` [Qemu-devel] [PATCH 08/15] pseries: Move XICS initialization before cpu initialization David Gibson
2012-10-18 5:50 ` [Qemu-devel] [PATCH 09/15] pseries: Return the token when we register an RTAS call David Gibson
2012-10-18 5:50 ` [Qemu-devel] [PATCH 10/15] pseries: Allow RTAS tokens without a qemu handler David Gibson
2012-10-18 5:50 ` [Qemu-devel] [PATCH 11/15] pseries: Add tracepoints to the XICS interrupt controller David Gibson
2012-10-18 5:50 ` [Qemu-devel] [PATCH 12/15] pseries: Split xics irq configuration from state information David Gibson
2012-10-18 5:50 ` [Qemu-devel] [PATCH 13/15] target-pcc: Convert ppcemb_tlb_t to use fixed 64-bit RPN David Gibson
2012-10-18 6:37 ` Alexander Graf
2012-10-18 8:19 ` David Gibson
2012-10-18 5:50 ` [Qemu-devel] [PATCH 14/15] pseries: Implement PAPR NVRAM David Gibson
2012-10-18 5:50 ` [Qemu-devel] [PATCH 15/15] pseries: Update SLOF for NVRAM support David Gibson
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