lkml.org 
[lkml]   [2014]   [Mar]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 0/2] KVM: x86 emulator: emulate MOVAPS and MOVAPD SSE instructions
Il 17/03/2014 18:38, H. Peter Anvin ha scritto:
> I'm not sure what you mean with "valid real mode selectors"; the normal
> case in big real mode is that either CS = SS = 0 or CS = SS = <some
> program base address>.

I mean "valid according to the VMX spec" for running in vm86 mode: base
= selector << 4, limit = 0xffff, access rights = 0xf3.

If a segment does not follow the rules, but CS does, we could run the
guest normally and trap memory accesses to KVM.

Paolo


\
 
 \ /
  Last update: 2014-03-18 13:41    [W:0.056 / U:7.252 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site