Implement strict memory permissions throughout

[edk2-devel] [PATCH v5 07/38] ArmVirtPkg: Enable stack guard

Posted by Ard Biesheuvel 1 year, 5 months ago

Enable the stack guard in ArmVirtPkg builds, so that stack overflows are
caught as they occur, rather than when they happen to hit a read-only
memory region.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
 ArmVirtPkg/ArmVirt.dsc.inc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ArmVirtPkg/ArmVirt.dsc.inc b/ArmVirtPkg/ArmVirt.dsc.inc
index 74d98e6314c4..5b18184be263 100644
--- a/ArmVirtPkg/ArmVirt.dsc.inc
+++ b/ArmVirtPkg/ArmVirt.dsc.inc
@@ -363,6 +363,8 @@ [PcdsFixedAtBuild.common]
   #
   gEfiMdeModulePkgTokenSpaceGuid.PcdDxeNxMemoryProtectionPolicy|0xC000000000007FD5
 
+  gEfiMdeModulePkgTokenSpaceGuid.PcdCpuStackGuard|TRUE
+
 [Components.common]
   #
   # Ramdisk support
-- 
2.39.2



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