Re: [Qemu-devel] [PATCH 00/24] Alpha system emulation, v2

[Richard Henderson <rth@twiddle.net>]

On 04/21/2011 07:48 AM, Brian Wheeler wrote:
> On Thu, 2011-04-21 at 15:43 +0200, Tristan Gingold wrote:
>> On Apr 21, 2011, at 3:37 PM, Brian Wheeler wrote:
>>
>>> On Thu, 2011-04-21 at 14:31 +0200, Tristan Gingold wrote:
>>>> On Apr 20, 2011, at 5:54 PM, Richard Henderson wrote:
>>>>
>>>>> On 04/20/2011 08:46 AM, Tristan Gingold wrote:
>>>> BSD should be doable, but I doubt for Tru64.  Do you have technical doc about the SRM ?
>>>> IIRC, the SRM uses its own palcode and SRM specific pal calls.

IIRC the main thing that was lacking between SRM and the Evaluation Board PALcode
that was used in MILO is the Console Callback (CCB) structure and routines.

> Ah, gotcha.  It almost seems like the console could actually be
> implemented in qemu itself, rather than a guest side thing, as long as
> it looks like part III of the ARM :)

My first try last year was going down this path.  It turned out to be irritatingly
difficult to manage the data setup inside QEMU itself.  Thus I came to be writing a
custom PALcode image that makes a number of simplifying assumptions based on the
ability to off-load some work to QEMU.


r~