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| author | Ard Biesheuvel <ardb@kernel.org> | 2023-02-10 17:54:55 +0100 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2023-05-29 16:51:01 +0000 |
| commit | 03663c4319003ccd911c93d11be37397a5881780 (patch) | |
| tree | 4dfb1398c07d7f2058df510b83639870979db8a1 | |
| parent | 8e934ab9562a33191af21ce3babf1ad37a3cdc34 (diff) | |
| download | edk2-03663c4319003ccd911c93d11be37397a5881780.tar.gz edk2-03663c4319003ccd911c93d11be37397a5881780.tar.bz2 edk2-03663c4319003ccd911c93d11be37397a5881780.zip | |
ArmVirtPkg/ArmVirtQemu: Use read-only memory region type for code flash
Map the code flash with read-only attributes so we can execute from it
even under a memory protection regime that enables WXN, making all
writable memory regions non-executable by default.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
| -rw-r--r-- | ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoLib.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoLib.c b/ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoLib.c index 23bd0fe68e..62fa62e5f0 100644 --- a/ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoLib.c +++ b/ArmVirtPkg/Library/QemuVirtMemInfoLib/QemuVirtMemInfoLib.c @@ -115,7 +115,7 @@ ArmVirtGetMemoryMap ( VirtualMemoryTable[2].PhysicalBase = PcdGet64 (PcdFvBaseAddress);
VirtualMemoryTable[2].VirtualBase = VirtualMemoryTable[2].PhysicalBase;
VirtualMemoryTable[2].Length = FixedPcdGet32 (PcdFvSize);
- VirtualMemoryTable[2].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK;
+ VirtualMemoryTable[2].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK_RO;
// End of Table
ZeroMem (&VirtualMemoryTable[3], sizeof (ARM_MEMORY_REGION_DESCRIPTOR));
|