linux-kernel - Re: [PATCH 0/3] x86_64 EFI runtime service support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 20 Aug 2007 10:20:48 -0700
From:	"San Mehat" <san@...gle.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	"Yinghai Lu" <yhlu.kernel@...il.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"Huang, Ying" <ying.huang@...el.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Andi Kleen" <ak@...e.de>,
	"Chandramouli Narayanan" <mouli@...ux.intel.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] x86_64 EFI runtime service support

On 8/20/07, H. Peter Anvin <hpa@...or.com> wrote:
> Yinghai Lu wrote:
> >
> > someone told me that EFI PEI will be 32 bit ( for mem etc
> > initialization), and after that will be 64 bit, so the Run time
> > service will be 64 bit only, and it will only support 64 bit OS with
> > EFI. and they have another mode to emulate the legacy BIOS to boot
> > 32bit OS.
> >
>
> That seems unlikely for e.g. the existing Macs already in the field.
>
> *Sigh.*
>

Actually some implementations do run PEI in 32 bit and DXE/BDS in 64
bit; I'm not sure what Macintosh does though..

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