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From: Michael Roth <mdroth@linux.vnet.ibm.com>
To: Alexey Starikovskiy <aystarik@gmail.com>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH v2 1/3] Add support for 64bit ARM system registers
Date: Wed, 14 Mar 2012 14:38:43 -0500	[thread overview]
Message-ID: <20120314193843.GF2894@illuin> (raw)
In-Reply-To: <CABtrw+McEh2MUHNB8x_YGTQHOQ4DoM8aLkw8jO0p-XhvM6T9ww@mail.gmail.com>

On Wed, Mar 14, 2012 at 10:09:09PM +0300, Alexey Starikovskiy wrote:
> Do I need to do anything beside following or not?

Not sure, ARM folks?

My suggestion would be to lose the the catch-all -EINVAL error we
throw in machine.c:cpu_load() when version_id != CPU_SAVE_VERSION
and only conditionally load 64-bit registers if the source's
version_id >= CPU_SAVE_VERSION. But we've never done that in the
past, and we broke old->new as recently as 2 months ago so I'm not
sure it's worth it since there hasn't been a release since then.

> 
> Thanks,
> Alex.
> 
> On Wed, Mar 14, 2012 at 11:06 PM, Michael Roth
> <mdroth@linux.vnet.ibm.com> wrote:
> >> > -#define CPU_SAVE_VERSION 6
> >> > +#define CPU_SAVE_VERSION 7
> 

  reply	other threads:[~2012-03-14 19:39 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-14 13:00 [Qemu-devel] [PATCH v2 1/3] Add support for 64bit ARM system registers Alexey Starikovskiy
2012-03-14 13:01 ` [Qemu-devel] [PATCH v2 2/3] Support for MRCC and MCRR instructions Alexey Starikovskiy
2012-03-14 13:02 ` [Qemu-devel] [PATCH v2 3/3] Minimal ARM LPAE support Alexey Starikovskiy
2012-03-14 18:57 ` [Qemu-devel] [PATCH v2 1/3] Add support for 64bit ARM system registers Michael Roth
2012-03-14 19:06   ` Michael Roth
2012-03-14 19:09     ` Alexey Starikovskiy
2012-03-14 19:38       ` Michael Roth [this message]
2012-03-14 20:38         ` Peter Maydell
  -- strict thread matches above, loose matches on Subject: below --
2012-03-14 13:14 Alexey Starikovskiy
2012-03-14 12:41 Alexey Starikovskiy
2012-03-14 11:58 Alexey Starikovskiy

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