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[PATCH] xen/public: arch-arm: Drop XEN_DMOP_get_ioreq_server_info from supported
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Oleksandr Tyshchenko <Oleksandr_Tyshchenko@xxxxxxxx>
- Date: Mon, 1 Sep 2025 12:58:38 +0000
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- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
- Delivery-date: Mon, 01 Sep 2025 12:58:44 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Thread-index: AQHcG0Ai/cd/D2azrkCw2pxNjrn41Q==
- Thread-topic: [PATCH] xen/public: arch-arm: Drop XEN_DMOP_get_ioreq_server_info from supported
The said sub-op is not supported on Arm64, since it:
- does not support the buffered emulation (so bufioreq_port/bufioreq_gfn
cannot be returned), please refer to ioreq_server_create()
- does not support "legacy" mechanism of mapping IOREQ Server
magic pages (so ioreq_gfn/bufioreq_gfn cannot be returned), please
refer to arch_ioreq_server_map_pages(). On Arm64, only the Acquire
Resource infrastructure is used to query and map the IOREQ Server pages.
Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>
---
xen/include/public/arch-arm.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/xen/include/public/arch-arm.h b/xen/include/public/arch-arm.h
index e2412a1747..023cc2f468 100644
--- a/xen/include/public/arch-arm.h
+++ b/xen/include/public/arch-arm.h
@@ -130,7 +130,6 @@
* HYPERVISOR_dm_op
* Exactly these sub-operations are supported:
* * XEN_DMOP_create_ioreq_server
- * * XEN_DMOP_get_ioreq_server_info
* * XEN_DMOP_map_io_range_to_ioreq_server
* * XEN_DMOP_unmap_io_range_from_ioreq_server
* * XEN_DMOP_set_ioreq_server_state
--
2.34.1
|
