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From: | Anthony Liguori |
Subject: | Re: [Qemu-devel] Anyone seeing huge slowdown launching qemu with Linux 2.6.35? |
Date: | Thu, 05 Aug 2010 08:43:27 -0500 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.11) Gecko/20100713 Lightning/1.0b1 Thunderbird/3.0.6 |
On 08/05/2010 02:28 AM, Gerd Hoffmann wrote:
Hi,The option rom stuff has a number of short comings. Because we hijack int19, extboot doesn't get to run. That means that if you use -kernel to load a grub (the Ubuntu guys for their own absurd reasons) then grub does not see extboot backed disks. The solution for them is the same, generate a proper disk and boot from that disk.Oh, having extboot + linuxboot + multiboot register a BEV (correct acronym?) entry instead of hijacking int19 would fix that too. Additional bonus will be that they are selectable in the boot menu.
Well, extboot doesn't hijack int19, it hijacks int13. It'll appear as the disk 0x80. It would be better though to do a BCV rom such that the extboot disk appeared as an independent disk instead of hijacking disk 0x80.
linuxboot/multiboot should be BEV roms, no doubt. Regards, Anthony Liguori
cheers, Gerd
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