[edk2-devel] [PATCH v5 38/38] MdeModulePkg DEC: Remove inaccurate comment

Ard Biesheuvel posted 38 patches 1 year, 3 months ago
[edk2-devel] [PATCH v5 38/38] MdeModulePkg DEC: Remove inaccurate comment
Posted by Ard Biesheuvel 1 year, 3 months ago
The comment regarding the configured image protection policy states that
data regions of a loaded image may be mapped NX based on the configured
NX memory policy for boot/runtime services or loader data regions.

This is inaccurate: all image sections will be covered by the same code
region in the memory map, so the NX protection policy for data regions
has no bearing on this whatsoever.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
 MdeModulePkg/MdeModulePkg.dec | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index 720dec58dfc4..b42af1faee25 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -1356,10 +1356,6 @@ [PcdsFixedAtBuild, PcdsPatchableInModule]
   #    BIT0       - Image from unknown device. <BR>
   #    BIT1       - Image from firmware volume.<BR>
   #  <BR>
-  #  Note: If a bit is cleared, the data section could be still non-executable if
-  #  PcdDxeNxMemoryProtectionPolicy is enabled for EfiLoaderData, EfiBootServicesData
-  #  and/or EfiRuntimeServicesData.<BR>
-  #  <BR>
   # @Prompt Set image protection policy.
   # @ValidRange 0x80000002 | 0x00000000 - 0x0000001F
   gEfiMdeModulePkgTokenSpaceGuid.PcdImageProtectionPolicy|0x00000002|UINT32|0x00001047
-- 
2.39.2



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