swh:1:snp:77163734605b0ec556b01d897b7bb4a7e30d46b6
Revision 8e620b0476696e9428442d3551f3dad47df0e28f authored by Catalin Marinas on 15 November 2012, 17:21:16 UTC, committed by Catalin Marinas on 16 November 2012, 15:50:25 UTC
On AArch64, the meaning of the XN bit has changed to UXN (user). The PXN
(privileged) bit must be set to prevent kernel execution. Without the
PXN bit set, the CPU may speculatively access device memory. This patch
ensures that all the mappings that the kernel must not execute from
(including user mappings) have the PXN bit set.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
1 parent 77b6706
History
Tip revision: a4412fdd49dc011bcc2c0d81ac4cab7457092650 authored by Steven Rostedt (Google) on 21 November 2022, 15:44:03 UTC
error-injection: Add prompt for function error injection
Tip revision: a4412fd
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.gitignore -rw-r--r-- 1.1 KB
.mailmap -rw-r--r-- 4.4 KB
COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 92.7 KB
Kbuild -rw-r--r-- 2.5 KB
Kconfig -rw-r--r-- 252 bytes
MAINTAINERS -rw-r--r-- 222.9 KB
Makefile -rw-r--r-- 46.6 KB
README -rw-r--r-- 18.2 KB
REPORTING-BUGS -rw-r--r-- 3.3 KB

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