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Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF
From: |
David Woodhouse |
Subject: |
Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM |
Date: |
Mon, 18 Feb 2013 18:28:44 +0000 |
On Mon, 2013-02-18 at 19:16 +0100, Laszlo Ersek wrote:
> 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 mys desperate hunch in
> <http://lists.nongnu.org/archive/html/qemu-devel/2013-02/msg02689.html>.
> I hope David can confirm in practice!
Yes, my working machines have unrestricted_guest support, and the
non-working machines don't. So when we're emulating it in vm86, the
extended segment base handling is broken.
--
dwmw2
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- Re: [Qemu-devel] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, (continued)
- Re: [Qemu-devel] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, Paolo Bonzini, 2013/02/18
- Re: [Qemu-devel] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, David Woodhouse, 2013/02/18
- Re: [Qemu-devel] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, Paolo Bonzini, 2013/02/18
- Re: [Qemu-devel] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, David Woodhouse, 2013/02/18
- Re: [Qemu-devel] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, Laszlo Ersek, 2013/02/18
- Re: [Qemu-devel] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, Laszlo Ersek, 2013/02/18
- Re: [Qemu-devel] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, Laszlo Ersek, 2013/02/18
- Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, Kevin O'Connor, 2013/02/18
- Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, Gleb Natapov, 2013/02/18
- Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, Laszlo Ersek, 2013/02/18
- Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM,
David Woodhouse <=
- Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, Gleb Natapov, 2013/02/18
- Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, Kevin O'Connor, 2013/02/19
- Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, Gleb Natapov, 2013/02/18
- Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, Kevin O'Connor, 2013/02/18
- Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, Gleb Natapov, 2013/02/19
- Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, David Woodhouse, 2013/02/19
- Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, Gleb Natapov, 2013/02/19
- Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, David Woodhouse, 2013/02/19
- Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, Gleb Natapov, 2013/02/19
- Re: [Qemu-devel] [SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM, David Woodhouse, 2013/02/19