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Re: [PATCH for-4.16 2/2] xen: Report grant table v1/v2 capabilities to the toolstack

To: George Dunlap <George.Dunlap@xxxxxxxxxx>, Ian Jackson <iwj@xxxxxxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Christian Lindig <christian.lindig@xxxxxxxxxx>, Edwin Torok <edvin.torok@xxxxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, "Andrew Cooper" <Andrew.Cooper3@xxxxxxxxxx>

From: Christian Lindig <christian.lindig@xxxxxxxxxx>

Date: Mon, 1 Nov 2021 10:01:34 +0000

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List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

Thread-index: AQHXzOvZgSsfTec4xkqJUFrx8c4E2qvudQ8A

Thread-topic: [PATCH for-4.16 2/2] xen: Report grant table v1/v2 capabilities to the toolstack

On 29 Oct 2021, at 18:38, Andrew Cooper <Andrew.Cooper3@xxxxxxxxxx> wrote:

In order to let the toolstack be able to set the gnttab version on a
per-domain basis, it needs to know which ABIs Xen supports. Introduce
XEN_SYSCTL_PHYSCAP_gnttab_v{1,2} for the purpose, and plumb in down into
userspace.

Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: George Dunlap <George.Dunlap@xxxxxxxxxxxxx>
CC: Ian Jackson <iwj@xxxxxxxxxxxxxx>
CC: Jan Beulich <JBeulich@xxxxxxxx>
CC: Stefano Stabellini <sstabellini@xxxxxxxxxx>
CC: Wei Liu <wl@xxxxxxx>
CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
CC: Julien Grall <julien@xxxxxxx>
CC: Christian Lindig <christian.lindig@xxxxxxxxxx>
CC: Edwin Török <edvin.torok@xxxxxxxxxx>

The OCaml changes are pure mechanics - so I’m fine with them.

Acked-by: Christian Lindig <christian.lindig@xxxxxxxxxx>