[PATCH v6 0/9] coco: guest: Enforce host page-size alignment for shared buffers

Aneesh Kumar K.V aneesh.kumar at kernel.org
Tue Sep 22 22:01:19 PDT 2026


Jason Gunthorpe <jgg at ziepe.ca> writes:

> On Fri, Sep 18, 2026 at 05:52:31PM +0100, Catalin Marinas wrote:
>
>> TBH, I'm tempted not to support this configuration at all, just fail
>> gracefully if the realm page size doesn't match the host's. However, if
>> that's a real world configuration, 
>
> realm != host is going to be fairly common.
>
> host > realm is probably not that common, I would guess.
>

Wouldn't it be more common to run a distro with a 4K page size as the
guest on a custom hypervisor with a 4K or larger page size?

-aneesh



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