From: ebiederm@xmission.com (Eric W. Biederman)
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Huang, Ying" <ying.huang@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
Andi Kleen <ak@suse.de>,
Chandramouli Narayanan <mouli@linux.intel.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/3] x86_64 EFI runtime service support
Date: Sun, 19 Aug 2007 16:27:06 -0600 [thread overview]
Message-ID: <m1vebbqhxh.fsf@ebiederm.dsl.xmission.com> (raw)
In-Reply-To: <46C476C2.3020506@zytor.com> (H. Peter Anvin's message of "Thu, 16 Aug 2007 09:09:38 -0700")
"H. Peter Anvin" <hpa@zytor.com> writes:
> Huang, Ying wrote:
>>
>> One question:
>>
>> The boot_params.efi_info.efi_systab is defined as u32. But it should be
>> u64 on x86_64, because it comes from firmware and is not controlled by
>> bootloader. But, changing it from u32 to u64 will break current i386 EFI
>> support, should we change it and fix the i386 EFI bootloader?
>>
>
> The other option is to have a union of a 32-bit and a 64-bit structure.
> I personally don't care, as long as it's consistent, but I think you
> need to deal with the people working on EFI currently about that...
It sounds like the 64bit EFI is currently binary incompatible with
the 32bit EFI.
Eric
next prev parent reply other threads:[~2007-08-19 22:27 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-13 7:30 Huang, Ying
2007-08-15 22:42 ` Andrew Morton
2007-08-16 7:51 ` Huang, Ying
2007-08-16 14:11 ` Andi Kleen
2007-08-17 1:25 ` Huang, Ying
2007-08-17 16:11 ` H. Peter Anvin
2007-08-20 3:20 ` Huang, Ying
2007-08-20 17:12 ` H. Peter Anvin
2007-08-21 1:44 ` Huang, Ying
2007-08-21 3:54 ` H. Peter Anvin
2007-08-21 4:53 ` Huang, Ying
2007-08-21 11:33 ` Andi Kleen
2007-08-21 10:41 ` H. Peter Anvin
2007-08-21 11:45 ` Andi Kleen
2007-08-21 23:58 ` Yinghai Lu
2007-08-22 1:22 ` Andi Kleen
2007-08-22 6:43 ` Yinghai Lu
2007-08-22 11:11 ` Andi Kleen
2007-08-22 14:23 ` huang ying
2007-08-22 16:28 ` H. Peter Anvin
2007-08-23 2:21 ` Huang, Ying
2007-08-23 2:46 ` H. Peter Anvin
2007-08-22 14:41 ` Eric W. Biederman
2007-08-22 16:44 ` H. Peter Anvin
2007-08-22 7:20 ` Yinghai Lu
2007-08-15 23:16 ` Andrew Morton
2007-08-15 23:22 ` H. Peter Anvin
2007-08-16 8:00 ` Huang, Ying
2007-08-16 16:09 ` H. Peter Anvin
2007-08-19 22:27 ` Eric W. Biederman [this message]
2007-08-19 22:25 ` Eric W. Biederman
2007-08-19 23:46 ` Yinghai Lu
2007-08-20 17:05 ` H. Peter Anvin
2007-08-20 17:20 ` San Mehat
2007-08-20 20:13 ` Matthew Garrett
2007-08-20 5:14 ` Huang, Ying
2007-08-16 7:52 ` Huang, Ying
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