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Re: [PATCH 1/4] xen/public: introduce DOMID_ANY
- To: Juergen Gross <jgross@xxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jason Andryuk <jason.andryuk@xxxxxxx>
- Date: Mon, 27 Apr 2026 18:00:08 -0400
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- Cc: <dmukhin@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, "Anthony PERARD" <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Julien Grall <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
- Delivery-date: Mon, 27 Apr 2026 22:00:28 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 2026-04-23 04:08, Juergen Gross wrote:
Add DOMID_ANY to xen/include/public/xen.h meant to be a wildcard for
domids.
Signed-off-by: Denis Mukhin <dmukhin@xxxxxxxx>
Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
---
This is based on Denis Mukhin's patch "xen/domain: introduce DOMID_ANY".
As my series is another use case for DOMID_ANY and it is a backport
candidate, I've split out the definition of DOMID_ANY from Denis'
patch in order to make progress for my series.
I think we probably want Denis as the Author, since this is an
unmodified piece of his patch.
---
xen/include/public/xen.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/xen/include/public/xen.h b/xen/include/public/xen.h
index b12fd10e63..f35a6f21f0 100644
--- a/xen/include/public/xen.h
+++ b/xen/include/public/xen.h
@@ -608,6 +608,13 @@ DEFINE_XEN_GUEST_HANDLE(mmuext_op_t);
/* DOMID_INVALID is used to identify pages with unknown owner. */
#define DOMID_INVALID xen_mk_uint(0x7FF4)
+/*
+ * DOMID_ANY is used to signal no specific domain ID requested.
+ * Handler should pick a valid ID, or handle it as a broadcast value
Maybe s/broadcast/wildcard/?
Either way:
Reviewed-by: Jason Andryuk <jason.andryuk@xxxxxxx>
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