From: Jean Guyader <jean.guyader@citrix.com>
To: xen-devel@lists.xen.org
Cc: tim@xen.org, JBeulich@suse.com
Subject: [PATCH 1/4] xen: Introduce guest_handle_for_field
Date: Thu, 20 Sep 2012 10:47:03 +0100 [thread overview]
Message-ID: <1348134426-25320-2-git-send-email-jean.guyader@citrix.com> (raw)
In-Reply-To: <1348134426-25320-1-git-send-email-jean.guyader@citrix.com>
[-- Attachment #1: Type: text/plain, Size: 206 bytes --]
This helper turns a field of a GUEST_HANDLE in
a GUEST_HANDLE.
Signed-off-by: Jan Beulich <JBeulich@suse.com>
---
xen/include/asm-x86/guest_access.h | 3 +++
1 file changed, 3 insertions(+)
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: 0001-xen-Introduce-guest_handle_for_field.patch --]
[-- Type: text/x-patch; name="0001-xen-Introduce-guest_handle_for_field.patch", Size: 547 bytes --]
diff --git a/xen/include/asm-x86/guest_access.h b/xen/include/asm-x86/guest_access.h
index 2b429c2..e3ac1d6 100644
--- a/xen/include/asm-x86/guest_access.h
+++ b/xen/include/asm-x86/guest_access.h
@@ -51,6 +51,9 @@
(XEN_GUEST_HANDLE(type)) { _x }; \
})
+#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(type)) { (type *)ptr })
#define const_guest_handle_from_ptr(ptr, type) \
[-- Attachment #3: Type: text/plain, Size: 126 bytes --]
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next prev parent reply other threads:[~2012-09-20 9:47 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-20 9:47 [PATCH 0/4] Add V4V to Xen v5 Jean Guyader
2012-09-20 9:47 ` Jean Guyader [this message]
2012-09-20 9:47 ` [PATCH 2/4] xen: virq, remove VIRQ_XC_RESERVED Jean Guyader
2012-09-20 9:47 ` [PATCH 3/4] xen: events, exposes evtchn_alloc_unbound_domain Jean Guyader
2012-09-20 9:47 ` [PATCH 4/4] xen: Add V4V implementation Jean Guyader
2012-09-20 10:22 ` [PATCH 0/4] Add V4V to Xen v5 Jan Beulich
2012-09-20 10:27 ` Jean Guyader
2012-09-20 11:12 ` Jan Beulich
-- strict thread matches above, loose matches on Subject: below --
2012-09-20 11:41 [PATCH 0/4] Add V4V to Xen (v6) Jean Guyader
2012-09-20 11:41 ` [PATCH 1/4] xen: Introduce guest_handle_for_field Jean Guyader
2012-09-13 18:09 [RFC][PATCH 0/4] Add V4V to Xen Jean Guyader
2012-09-13 18:09 ` [PATCH 1/4] xen: Introduce guest_handle_for_field Jean Guyader
2012-09-13 18:12 ` Jean Guyader
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