[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] Re: [Bochs-developers] [PATCH v2 5/6] Don't use unreserved
|
From: |
Kevin O'Connor |
|
Subject: |
[Qemu-devel] Re: [Bochs-developers] [PATCH v2 5/6] Don't use unreserved memory in BIOS. |
|
Date: |
Thu, 6 Nov 2008 19:25:52 -0500 |
|
User-agent: |
Mutt/1.5.18 (2008-05-17) |
On Mon, Nov 03, 2008 at 11:26:46AM +0200, Gleb Natapov wrote:
> Use only first page and last page of low memory. OSes assumes that first
> page is used by bios and last page is reserved in e820 map.
[...]
> ;; init the stack pointer
> - mov esp, #0x00080000
> + mov esp, #0x9fbf0
Random note - I'm told that some option roms can relocate the EBDA.
Setting the stack in the EBDA area will prevent that from working.
I'm not sure if this is really a problem though - a relocated EBDA
would likely break bochs bios today. Something to be aware of though.
-Kevin
- [Qemu-devel] [PATCH v2 2/6] Add S3 state to DSDT. Handle resume event in the BIOS., (continued)
[Qemu-devel] [PATCH v2 5/6] Don't use unreserved memory in BIOS., Gleb Natapov, 2008/11/03
- [Qemu-devel] Re: [Bochs-developers] [PATCH v2 5/6] Don't use unreserved memory in BIOS.,
Kevin O'Connor <=
[Qemu-devel] [PATCH v2 6/6] Don't power down vga card on entering S3 state., Gleb Natapov, 2008/11/03