[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] can dom0 modify Shadow PT of HVM domU?



On 26/08/2009 11:30, "Wu Bingzheng" <wubingzheng@xxxxxxx> wrote:

>> I see.  That seems like a pretty convoluted way of doing it.  Why don't
>> you just inject #GP (or whatever) straight into the guest from your dom0
>> hypercall?
> 
> I think vmx_inject_hw_exception() can't be called under dom0's context,
> because it calls __vmread() to read VMCS.

You can do vmx_vmcs_enter(v) at the very start of the function (before any
vmread or vmwrite) and vmx_vmcs_exit(v) at the very end. If you make this
change then it will be safe to call the function from dom0.

 -- Keir



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.