RE: [Bochs-developers] [Qemu-devel] [PATCH v5 0/5] Support for S3 ACPI state (suspend to memory) in BIOS

[Stanislav]

Again, I mean Bochs doesn't emulate caches. So what do you mean by catchall
emulation ?
To allocate kind of dummy 32K block and use it when CRAM mode and delete
immediately after ?
About the way you enable CRAM mode - it would be nice if we agree to use a
protocol which real hardware needs.
I still hope to be able to execute real hardware BIOSes on Bochs for example
...

Stanislav

-----Original Message-----
From: Carl-Daniel Hailfinger [mailto:address@hidden 
Sent: Thursday, November 27, 2008 11:05 PM
To: address@hidden
Cc: address@hidden
Subject: Re: [Bochs-developers] [Qemu-devel] [PATCH v5 0/5] Support for S3
ACPI state (suspend to memory) in BIOS

On 27.11.2008 21:04, Stanislav wrote:
> What is the catchall emulation ? Could you explain/point me some docs ?
>   

Sorry, it was only a brief sentence. Basically, if the total size of all
cached areas is not bigger than CPU cache size, no cache line will be
evicted and the cache behaves like Cache-as-RAM (CAR). That should be
doable in Bochs, KVM and Qemu.

Or were you looking for BIOS code to enable CAR? That is indeed
processor specific, but any of the existing CAR implementations will
work if the catchall emulation is used.

Regards,
Carl-Daniel

-- 
http://www.hailfinger.org/


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