Re: [PATCH v7 06/27] x86, 64bit: early #PF handler set page table

[Yinghai Lu]

On Tue, Dec 25, 2012 at 3:20 AM, Borislav Petkov <bp@xxxxxxxxx> wrote:
> On Mon, Dec 24, 2012 at 08:04:18PM -0800, Yinghai Lu wrote:
>> well, I updated for-x86-boot-v7 that stop #PF handler after
>> init_mem_mapping.
>>
>> it has fix for AMD system aka reverting far jmp to ret.
>
> -v7?
>
> You told me yesterday -v8 is the current branch. Do you have -v7 which
> does break KGDB and -v8 which breaks it and both branches are current?
>

-v7: stop #PF handler after init_mem_mapping, so it could break KGDB,
if someone try to use mdump.
-v8: stop #PF handler before x86_64_start_reservations.

Now both have be updated and could work with AMD platform after drop
the change with lretq aka keep lretq.

Yinghai
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/