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From: Christopher Clark <christopher.w.clark@gmail.com>
To: xen-devel@lists.xenproject.org
Cc: Stefano Stabellini <sstabellini@kernel.org>,
	Wei Liu <wei.liu2@citrix.com>,
	Ross Philipson <ross.philipson@gmail.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	George Dunlap <George.Dunlap@eu.citrix.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	Jason Andryuk <jandryuk@gmail.com>,
	Ian Jackson <ian.jackson@eu.citrix.com>,
	Rich Persaud <persaur@gmail.com>, Tim Deegan <tim@xen.org>,
	Daniel Smith <dpsmith@apertussolutions.com>,
	Julien Grall <julien.grall@arm.com>,
	Paul Durrant <paul.durrant@citrix.com>,
	Jan Beulich <jbeulich@suse.com>,
	James McKenzie <james@bromium.com>,
	Eric Chanudet <eric.chanudet@gmail.com>,
	Roger Pau Monne <roger.pau@citrix.com>
Subject: [PATCH v4 06/14] xen/arm: introduce guest_handle_for_field()
Date: Tue, 15 Jan 2019 01:27:38 -0800	[thread overview]
Message-ID: <1547544466-21135-7-git-send-email-christopher.w.clark@gmail.com> (raw)
In-Reply-To: <1547544466-21135-1-git-send-email-christopher.w.clark@gmail.com>

ARM port of c/s bb544585: "introduce guest_handle_for_field()"

This helper turns a field of a GUEST_HANDLE into a GUEST_HANDLE.

Signed-off-by: Christopher Clark <christopher.clark6@baesystems.com>
Reviewed-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
---
v3: Added Stefano's Reviewed-by
v2: Added Paul's Reviewed-by

 xen/include/asm-arm/guest_access.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/xen/include/asm-arm/guest_access.h b/xen/include/asm-arm/guest_access.h
index 224d2a0..8997a1c 100644
--- a/xen/include/asm-arm/guest_access.h
+++ b/xen/include/asm-arm/guest_access.h
@@ -63,6 +63,9 @@ int access_guest_memory_by_ipa(struct domain *d, paddr_t ipa, void *buf,
     _y;                                                     \
 })
 
+#define guest_handle_for_field(hnd, type, fld)          \
+    ((XEN_GUEST_HANDLE(type)) { &(hnd).p->fld })
+
 #define guest_handle_from_ptr(ptr, type)        \
     ((XEN_GUEST_HANDLE_PARAM(type)) { (type *)ptr })
 #define const_guest_handle_from_ptr(ptr, type)  \
-- 
2.7.4


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  parent reply	other threads:[~2019-01-15  9:28 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-15  9:27 [PATCH v4 00/14] Argo: hypervisor-mediated interdomain communication Christopher Clark
2019-01-15  9:27 ` [PATCH v4 01/14] argo: Introduce the Kconfig option to govern inclusion of Argo Christopher Clark
2019-01-15  9:27 ` [PATCH v4 02/14] argo: introduce the argo_op hypercall boilerplate Christopher Clark
2019-01-15  9:27 ` [PATCH v4 03/14] argo: define argo_dprintk for subsystem debugging Christopher Clark
2019-01-15  9:27 ` [PATCH v4 04/14] argo: init, destroy and soft-reset, with enable command line opt Christopher Clark
2019-01-15 12:29   ` Roger Pau Monné
2019-01-15 12:42     ` Jan Beulich
2019-01-15 14:16       ` Roger Pau Monné
2019-01-15 14:15     ` Ian Jackson
2019-01-16  1:07     ` Christopher Clark
2019-01-15  9:27 ` [PATCH v4 05/14] errno: add POSIX error codes EMSGSIZE, ECONNREFUSED to the ABI Christopher Clark
2019-01-15  9:27 ` Christopher Clark [this message]
2019-01-15  9:27 ` [PATCH v4 07/14] argo: implement the register op Christopher Clark
2019-01-15 14:40   ` Roger Pau Monné
2019-01-15 22:37     ` Christopher Clark
2019-01-15  9:27 ` [PATCH v4 08/14] argo: implement the unregister op Christopher Clark
2019-01-15 15:03   ` Roger Pau Monné
2019-01-17  6:40     ` Christopher Clark
2019-01-15  9:27 ` [PATCH v4 09/14] argo: implement the sendv op; evtchn: expose send_guest_global_virq Christopher Clark
2019-01-15 15:49   ` Roger Pau Monné
2019-01-15 16:10     ` Jan Beulich
2019-01-15 16:19       ` Roger Pau Monné
2019-01-17  6:48     ` Christopher Clark
2019-01-17 10:53       ` Roger Pau Monné
2019-01-15  9:27 ` [PATCH v4 10/14] argo: implement the notify op Christopher Clark
2019-01-15 16:17   ` Roger Pau Monné
2019-01-17  6:54     ` Christopher Clark
2019-01-17 11:12       ` Roger Pau Monné
2019-01-17 12:04         ` Jan Beulich
2019-01-17 21:44         ` Christopher Clark
2019-01-18  9:44           ` Roger Pau Monné
2019-01-18 23:54             ` Christopher Clark
2019-01-18 23:59               ` Christopher Clark
2019-01-19 12:06               ` Roger Pau Monné
2019-01-21  1:59                 ` Christopher Clark
2019-01-21  8:21                   ` Roger Pau Monné
2019-01-15  9:27 ` [PATCH v4 11/14] xsm, argo: XSM control for argo register Christopher Clark
2019-01-15  9:27 ` [PATCH v4 12/14] xsm, argo: XSM control for argo message send operation Christopher Clark
2019-01-15  9:27 ` [PATCH v4 13/14] xsm, argo: XSM control for any access to argo by a domain Christopher Clark
2019-01-15  9:27 ` [PATCH v4 14/14] xsm, argo: notify: don't describe rings that cannot be sent to Christopher Clark
2019-01-15 16:34 ` [PATCH v4 00/14] Argo: hypervisor-mediated interdomain communication Roger Pau Monné
2019-01-15 22:39   ` Christopher Clark

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