| |
|
 |
|
 |
|
|
|
| |
|
|
xen-devel
Re: [Xen-devel] about vmxassist
On 8/3/08 07:11, "yushang" <yusunn@xxxxxxxxx> wrote:
>>> I find the code path
>>> will enter the native real mode if do not use vmxassist , not a
>>> emulation one .
> Sorry but I mean the code path of hvmloader , just at the beginning of
> hvmloader, if do not use vmxassist execution will return from main and
> enter real-address mode then jmp to bios , so bios will run in
> real-address mode , is this true ?
Yes, as soon as real mode is entered (CR0 bit 0 is cleared) Xen notices that
and runs the guest through the full real-mode emulator until CR0 bit 0 is
set again.
-- Keir
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
|
|
| |
|
Home