From: Jean Guyader <jean.guyader@citrix.com>
To: xen-devel@lists.xen.org
Cc: Jean Guyader <jean.guyader@citrix.com>
Subject: [PATCH 3/5] xen: Enforce introduce guest_handle_for_field
Date: Thu, 28 Jun 2012 17:26:24 +0100 [thread overview]
Message-ID: <1340900786-21802-4-git-send-email-jean.guyader@citrix.com> (raw)
In-Reply-To: <1340900786-21802-1-git-send-email-jean.guyader@citrix.com>
[-- Attachment #1: Type: text/plain, Size: 213 bytes --]
This helper turns a field of a GUEST_HANDLE in
a GUEST_HANDLE.
Signed-off-by: Jean Guyader <jean.guyader@citrix.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: 0003-xen-Enforce-introduce-guest_handle_for_field.patch --]
[-- Type: text/x-patch; name="0003-xen-Enforce-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:[~2012-06-28 16:26 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-28 16:26 [PATCH 0/5] RFC: V4V (v2) Jean Guyader
2012-06-28 16:26 ` [PATCH 1/5] xen: add ssize_t Jean Guyader
2012-06-29 8:05 ` Jan Beulich
2012-06-29 10:09 ` Jean Guyader
2012-06-29 10:38 ` Jan Beulich
2012-06-28 16:26 ` [PATCH 2/5] v4v: Introduce VIRQ_V4V Jean Guyader
2012-06-29 8:07 ` Jan Beulich
2012-06-29 10:33 ` Jean Guyader
2012-06-28 16:26 ` Jean Guyader [this message]
2012-06-29 8:10 ` [PATCH 3/5] xen: Enforce introduce guest_handle_for_field Jan Beulich
2012-06-28 16:26 ` [PATCH 4/5] xen: Add V4V implementation Jean Guyader
2012-06-29 8:33 ` Jan Beulich
2012-06-29 10:03 ` Jean Guyader
2012-06-29 10:36 ` Jan Beulich
2012-07-18 20:09 ` Jean Guyader
2012-07-19 9:34 ` Andrew Cooper
2012-07-19 9:58 ` Jean Guyader
2012-07-19 9:54 ` Attilio Rao
2012-07-19 10:06 ` Jean Guyader
2012-07-19 10:04 ` Attilio Rao
2012-07-19 10:32 ` Ian Campbell
2012-07-19 10:42 ` Andrew Cooper
2012-07-19 11:33 ` Stefano Stabellini
2012-07-19 11:40 ` Andrew Cooper
2012-07-19 11:58 ` Jean Guyader
2012-07-23 8:18 ` Jan Beulich
2012-07-05 11:36 ` Tim Deegan
2012-06-28 16:26 ` [PATCH 5/5] v4v: Introduce basic access control to V4V Jean Guyader
2012-07-05 14:23 ` Tim Deegan
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