On 01/25/10 21:14, Anthony Liguori wrote:
On 01/25/2010 02:04 PM, Alexander Graf wrote:
Yes, sounds good. Should be fairly extensible then. What about memory
holes? Do we need to take care of them?
It would be nice for QEMU to be able to add additional e820 regions that
don't necessarily fit the standard layout model.
For instance, I've thought a number of times about using a large
reserved region as a shared memory mechanism.
But we certainly need to allow the BIOS to define the regions it needs
to know about.
I think it should be easy to accommodate using the scheme I am
suggesting. It would require some basic testing for conflicts in the
BIOS, but otherwise it should pretty much allow you to specify any
region you want as a reserved block.
Only problem is that we don't really have a way to pass back info
saying 'you messed up trying to pinch an area that the BIOS wants
for itself'.
I'll take a look at it.
Cheers,
Jes
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