From: Avi Kivity <avi@qumranet.com>
To: "Yang, Sheng" <sheng.yang@intel.com>
Cc: kvm@vger.kernel.org
Subject: Re: [PATCH] kvm: bios: Put AP boot up code to 0x1000
Date: Thu, 31 Jul 2008 09:41:04 +0300 [thread overview]
Message-ID: <48915E80.8010406@qumranet.com> (raw)
In-Reply-To: <200807311400.11644.sheng.yang@intel.com>
Yang, Sheng wrote:
> On Thursday 31 July 2008 10:43:20 Yang, Sheng wrote:
>
>> From ba05b3c821400127074f65ee4d172fabbe3524cd Mon Sep 17 00:00:00
>> 2001 From: Sheng Yang <sheng.yang@intel.com>
>> Date: Thu, 31 Jul 2008 10:39:24 +0800
>> Subject: [PATCH] kvm: bios: Put AP boot up code to 0x1000
>>
>> Rather than 0x10000, which can be overrided by userspace program
>> like grub.
>>
How about 0xex000? And avoid copying the bios to low memory?
Gleb tried it and it worked. We'd have to change qemu to mark the
memory as RAM, not ROM, but that's what real hardware does as well
(shadowing the ROM into RAM).
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
next prev parent reply other threads:[~2008-07-31 6:41 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-31 2:43 [PATCH] kvm: bios: Put AP boot up code to 0x1000 Yang, Sheng
2008-07-31 6:00 ` Yang, Sheng
2008-07-31 6:41 ` Avi Kivity [this message]
2008-07-31 9:09 ` Yang, Sheng
2008-07-31 9:46 ` Avi Kivity
2008-08-01 15:49 ` H. Peter Anvin
2008-07-31 21:15 ` Sebastian Herbszt
2008-08-01 1:19 ` Yang, Sheng
2008-08-02 19:30 ` Sebastian Herbszt
2008-08-05 8:14 ` Yang, Sheng
2008-08-06 21:56 ` Sebastian Herbszt
2008-08-10 7:50 ` Avi Kivity
2008-08-13 23:00 ` Sebastian Herbszt
2008-08-14 6:08 ` Avi Kivity
2008-08-17 22:35 ` [PATCH] kvm: bios: end AP boot code execution in rombios Sebastian Herbszt
2008-08-18 2:33 ` Anthony Liguori
2008-08-18 2:45 ` Yang, Sheng
2008-08-18 10:21 ` Avi Kivity
2008-08-18 10:22 ` Avi Kivity
2008-08-19 23:06 ` Sebastian Herbszt
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