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Re: [PATCH 1/4] xen/public: introduce DOMID_ANY
- To: Jason Andryuk <jason.andryuk@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: Jürgen Groß <jgross@xxxxxxxx>
- Date: Tue, 28 Apr 2026 15:36:20 +0200
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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: Tue, 28 Apr 2026 13:36:28 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 28.04.26 00:00, Jason Andryuk wrote:
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.
Apart from the commit message, yes.
Keeping Denis as the author is fine with me.
---
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/?
Yes, sounds better.
Either way:
Reviewed-by: Jason Andryuk <jason.andryuk@xxxxxxx>
Thanks,
Juergen
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