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authorAshish Singhal <ashishsingha@nvidia.com>2023-11-29 20:51:53 -0700
committermergify[bot] <37929162+mergify[bot]@users.noreply.github.com>2023-11-30 04:58:07 +0000
commit59b6b5059b90883abfcbd906c411e8f59ac1aa0d (patch)
treef27ffbcd9af674df024a2b9ffc4ce5913efdc709 /EmbeddedPkg
parentc0207583e02205cf4dfda08fd102ebdb3df0b4f2 (diff)
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edk2-59b6b5059b90883abfcbd906c411e8f59ac1aa0d.tar.gz
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EmbeddedPkg: Allow longer android kernel command line
AndroidBootImgLib allows for platforms to append to kernel command line but does not allow for the overall kernel command line to go beyond the limit set by the image header. Address this limitation by adding a pcd where platform can tell how many extra characters they expect on their platform in addition to what the image header specifies. Signed-off-by: Ashish Singhal <ashishsingha@nvidia.com> Reviewed-by: Abner Chang <abner.chang@amd.com>
Diffstat (limited to 'EmbeddedPkg')
-rw-r--r--EmbeddedPkg/EmbeddedPkg.dec5
-rw-r--r--EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c2
-rw-r--r--EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf3
3 files changed, 8 insertions, 2 deletions
diff --git a/EmbeddedPkg/EmbeddedPkg.dec b/EmbeddedPkg/EmbeddedPkg.dec
index 341ef5e..94dc3c9 100644
--- a/EmbeddedPkg/EmbeddedPkg.dec
+++ b/EmbeddedPkg/EmbeddedPkg.dec
@@ -183,3 +183,8 @@
# Selection between DT and ACPI as a default
#
gEmbeddedTokenSpaceGuid.PcdDefaultDtPref|TRUE|BOOLEAN|0x0000059
+
+ #
+ # Expected Overflow Android Kernel Command Line Characters
+ #
+ gEmbeddedTokenSpaceGuid.PcdAndroidKernelCommandLineOverflow|0|UINT32|0x000005C
diff --git a/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c b/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c
index f63648e..d16929f 100644
--- a/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c
+++ b/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c
@@ -335,7 +335,7 @@ AndroidBootImgUpdateArgs (
return Status;
}
- NewKernelArgSize = ANDROID_BOOTIMG_KERNEL_ARGS_SIZE;
+ NewKernelArgSize = ANDROID_BOOTIMG_KERNEL_ARGS_SIZE + PcdGet32 (PcdAndroidKernelCommandLineOverflow);
*KernelArgs = AllocateZeroPool (sizeof (CHAR16) * NewKernelArgSize);
if (*KernelArgs == NULL) {
DEBUG ((DEBUG_ERROR, "Fail to allocate memory\n"));
diff --git a/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf b/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf
index 8eefeef..9754664 100644
--- a/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf
+++ b/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf
@@ -45,5 +45,6 @@
gEfiAcpiTableGuid
gFdtTableGuid
-[FeaturePcd]
+[Pcd]
gEmbeddedTokenSpaceGuid.PcdAndroidBootLoadFile2
+ gEmbeddedTokenSpaceGuid.PcdAndroidKernelCommandLineOverflow