From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: "Dong, Eddie" <eddie.dong-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: kvm-devel <kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Subject: Re: question on #UD emulation
Date: Sun, 16 Dec 2007 17:07:03 +0200 [thread overview]
Message-ID: <47653F17.3060409@qumranet.com> (raw)
In-Reply-To: <10EA09EFD8728347A513008B6B0DA77A02858E8E-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
Dong, Eddie wrote:
>
>
>> Since we don't emulate 3Dnow instructions, a #UD will be
>> injected instead.
>>
>>
> OK, how many architecture specific instructiosn are emulated now?
>
Just vmcall/vmmcall (which is emulated once, then patched).
> Or what is planed to be implemented? If no, then adding those
> emulation in KVM just means dead code.
sysenter/sysexit (which aren't implemented in amd compatibility mode)
and syscall/sysret (which aren't implemented in intel compatibility mode).
Both are only used for 32-bit userspace on 64-bit guests, so they aren't
too critical.
--
error compiling committee.c: too many arguments to function
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prev parent reply other threads:[~2007-12-16 15:07 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-16 10:01 question on #UD emulation Dong, Eddie
[not found] ` <10EA09EFD8728347A513008B6B0DA77A02858E27-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-12-16 11:32 ` Avi Kivity
[not found] ` <47650CD8.5060401-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-12-16 12:33 ` Joerg Roedel
[not found] ` <20071216123318.GB31298-5C7GfCeVMHo@public.gmane.org>
2007-12-16 12:49 ` Dor Laor
[not found] ` <47651EDB.2010601-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-12-16 14:42 ` Dong, Eddie
[not found] ` <10EA09EFD8728347A513008B6B0DA77A02858E8C-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-12-16 15:04 ` Avi Kivity
2007-12-16 14:44 ` Dong, Eddie
[not found] ` <10EA09EFD8728347A513008B6B0DA77A02858E8E-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-12-16 15:07 ` Avi Kivity [this message]
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