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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen master] xen: arm: Be explicit about bit values in mfn_to_xen_entry()
commit d87d52248dc7d18ac27529fa5ea803a23126f0f0
Author: Chris Brand <chris.brand@xxxxxxxxxxxx>
AuthorDate: Thu Sep 10 11:56:29 2015 -0700
Commit: Ian Campbell <ian.campbell@xxxxxxxxxx>
CommitDate: Fri Sep 11 14:29:34 2015 +0100
xen: arm: Be explicit about bit values in mfn_to_xen_entry()
Ensure that every relevant bit is given an explicit value.
This has no effect on the generated code, but makes it
a little easier to follow.
Reported-by: Julien Grall <julien.grall@xxxxxxxxxx>
Signed-off-by: Chris Brand <chris.brand@xxxxxxxxxxxx>
Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
xen/include/asm-arm/page.h | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/xen/include/asm-arm/page.h b/xen/include/asm-arm/page.h
index 01628f3..a94e978 100644
--- a/xen/include/asm-arm/page.h
+++ b/xen/include/asm-arm/page.h
@@ -202,9 +202,12 @@ static inline lpae_t mfn_to_xen_entry(unsigned long mfn,
unsigned attr)
.ai = attr,
.ns = 1, /* Hyp mode is in the non-secure world */
.user = 1, /* See below */
+ .ro = 0, /* Assume read-write */
.af = 1, /* No need for access tracking */
.ng = 1, /* Makes TLB flushes easier */
+ .contig = 0, /* Assume non-contiguous */
.xn = 1, /* No need to execute outside .text */
+ .avail = 0, /* Reference count for domheap mapping */
}};;
/* Setting the User bit is strange, but the ATS1H[RW] instructions
* don't seem to work otherwise, and since we never run on Xen
--
generated by git-patchbot for /home/xen/git/xen.git#master
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