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Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF


From: Laszlo Ersek
Subject: Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM
Date: Mon, 18 Feb 2013 19:16:25 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.12) Gecko/20130108 Thunderbird/10.0.12

On 02/18/13 18:45, Gleb Natapov wrote:
> On Mon, Feb 18, 2013 at 06:12:55PM +0100, Laszlo Ersek wrote:

>> CS =f000 000f0000 0000ffff 0000f300
>>     ^    ^        ^        ^
>>     |    base     limit    flags
>>     selector
>>
> This is because real mode is emulated as vm86 mode on intel cpus without
> "unrestricted guest" flag.

Awesome, this supports my desperate hunch in
<http://lists.nongnu.org/archive/html/qemu-devel/2013-02/msg02689.html>.
I hope David can confirm in practice!

Thanks!
Laszlo



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