Xen devel - May 2011 - hvmloader problems?

Hi all, I have some puzzle about hvmloader in the path /tools/firmware/, they
are:
1: Is hvmloader running in non-root mode?
2: If hvmloader runs in non-root mode, does it have its pagetable? when set
GUEST_CR3 in vmcs?
3: How can I find the value of GUEST_RIP in vmcs is set to the entry point of
hvmloader,when virtual machine do it first vm entry.

Much Thanks!
 - henanwxr

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Hi all, I have some puzzle about hvmloader in the path /tools/firmware/, they
are:
1: Is hvmloader running in non-root mode?
2: If hvmloader runs in non-root mode, does it have its pagetable? when set
GUEST_CR3 in vmcs?
3: How can I find the value of GUEST_RIP in vmcs is set to the entry point of
hvmloader,when virtual machine do it first vm entry.

Much Thanks!
 
- henanwxr

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On 19/05/2011 17:32, "henanwxr" <henanwxr@163.com> wrote:
> Hi all, I have some puzzle about hvmloader in the path /tools/firmware/,
they
> are:
> 1: Is hvmloader running in non-root mode?
Yes.
> 2: If hvmloader runs in non-root mode, does it have its pagetable? when set
> GUEST_CR3 in vmcs?
It runs in 32-bit protected mode, but with paging disabled. Hence it never
sets GUEST_CR3.
> 3: How can I find the value of GUEST_RIP in vmcs is set to the entry point
of
> hvmloader,when virtual machine do it first vm entry.
It doesn''t get changed from its initial value of zero. Execution starts
at
0x0 and immediately executes a JMP to the actual start address. The JMP is
inserted by tools/libxc/xc_hvm_build.c (just search in there for JMP).

 -- Keir
> Much Thanks!
>  
> - henanwxr
> 
> 
> 
> View this message in context: hvmloader problems？
>
<http://xen.1045712.n5.nabble.com/hvmloader-problems-tp4410213p4410213.html>
> Sent from the Xen - Dev mailing list archive
> <http://xen.1045712.n5.nabble.com/Xen-Dev-f2473738.html>  at
Nabble.com.
> 
> _______________________________________________
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> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel


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