| |
|
 |
|
 |
|
|
|
| |
|
|
xen-ia64-devel
Re: Resend [Xen-ia64-devel] [PATCH]Fix domain0 no VGA console bug.
On Sun, 2006-06-04 at 21:16 +0800, Zhang, Xiantao wrote:
> The updated patch should be happy for all platforms. If EFI doesn't
> provide md for range(0xa0000-0xc0000) to OS. It maybe a hole or
> occupied by legacy vga. Therefore, I used the efi_mmio function to
> check it. If these pages was not mapped yet and efi_mmio return true,
> we can map them as MMIO safely.
Hi Xiantao,
This patch has a couple problems. First, if a page is mapped, as
indicated by domain_page_mapped(), it shouldn't fall into the else and
get mapped again. Second, I believe domain_page_mapped() should use
lookup_noalloc_domain_pte() instead of the alloc version.
I've updated the patch and expanded on it a little to create
conventional memory ranges in low memory corresponding to the ranges the
platform provides. This prevents my non-VGA system from improperly
detecting a VGA console and reclaims that little bit of memory in it's
address space. Please let me know if this attached patch works for you
as well. Thanks,
Alex
--
Alex Williamson HP Open Source & Linux Org.
xen0_console_revised.patch
Description: Text Data
_______________________________________________
Xen-ia64-devel mailing list
Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-ia64-devel
|
|
|
| |
|
Home