Ensure that every bit has a specific value.
Reported-by: Julien Grall <julien.gr...@citrix.com>
Signed-off-by: Chris Brand <chris.br...@broadcom.com>
---
v2 adds comments on pxn and avail.
xen/include/asm-arm/page.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/xen/include/asm-arm/page.h b/xen/include/asm-arm/page.h
index 01628f3e96cb..4f430a5ff4fa 100644
--- a/xen/include/asm-arm/page.h
+++ b/xen/include/asm-arm/page.h
@@ -202,9 +202,14 @@ 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 */
+ .sbz = 0,
+ .contig = 0, /* Assume non-contiguous */
+ .pxn = 0, /* Reserved for PL2 stage 1 page table */
.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
--
1.9.1
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