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Re: [Xen-devel] [PATCH RFC v13 19/20] PVH xen tools: libxc changes to build a PVH guest.

On 04/11/13 12:56, George Dunlap wrote:
> On 18/10/13 17:45, Roger Pau Monné wrote:
>> This patch is incomplete, PVH guests with 4GB of RAM or more will fail
>> to boot due to libxc temporary mapping the grant table to gfn 0xFFFFE,
>> which is an invalid gfn on HVM guests, but not on PVH guests. When
>> libxc removes the mapping of 0xFFFFE it will leave an invalid mfn in
>> the p2m table, that will make the guest crash when trying to access
>> that gfn.
>> The easiest way I've found to solve this is to temporary map the grant
>> table to the maximum gfn + 1. This fixes the PVH issue, and also seems
>> to work fine with HVM guests, here is the diff which should probably be
>> integrated into this patch:
> Thanks Roger.  I assume it's OK to add your sign-off to this patch?

Yes, you can merge it with the current patch.


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