2023-07-22 12:17:50

by Alexandre Ghiti

[permalink] [raw]
Subject: [PATCH v5 1/3] Documentation: arm: Add bootargs to the table of added DT parameters

The bootargs node is also added by the EFI stub in the function
update_fdt(), so add it to the table.

Signed-off-by: Alexandre Ghiti <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
Reviewed-by: Song Shuai <[email protected]>
---
- Changes in v5:
* Rebase on top of docs-next

Documentation/arch/arm/uefi.rst | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/arch/arm/uefi.rst b/Documentation/arch/arm/uefi.rst
index baebe688a006..2b7ad9bd7cd2 100644
--- a/Documentation/arch/arm/uefi.rst
+++ b/Documentation/arch/arm/uefi.rst
@@ -50,7 +50,7 @@ The stub populates the FDT /chosen node with (and the kernel scans for) the
following parameters:

========================== ====== ===========================================
-Name Size Description
+Name Type Description
========================== ====== ===========================================
linux,uefi-system-table 64-bit Physical address of the UEFI System Table.

@@ -67,4 +67,6 @@ linux,uefi-mmap-desc-ver 32-bit Version of the mmap descriptor format.

kaslr-seed 64-bit Entropy used to randomize the kernel image
base address location.
+
+bootargs String Kernel command line
========================== ====== ===========================================
--
2.39.2



2023-07-22 12:24:33

by Alexandre Ghiti

[permalink] [raw]
Subject: [PATCH v5 3/3] Documentation: riscv: Update boot image header since EFI stub is supported

The EFI stub is supported on RISC-V so update the documentation that
explains how the boot image header was reused to support it.

Signed-off-by: Alexandre Ghiti <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
Reviewed-by: Palmer Dabbelt <[email protected]>
Acked-by: Palmer Dabbelt <[email protected]>
---
- Changes in v5:
* Rebase on top of docs-next

Documentation/riscv/boot-image-header.rst | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Documentation/riscv/boot-image-header.rst b/Documentation/riscv/boot-image-header.rst
index a4a45310c4c4..df2ffc173e80 100644
--- a/Documentation/riscv/boot-image-header.rst
+++ b/Documentation/riscv/boot-image-header.rst
@@ -28,11 +28,11 @@ header in future.
Notes
=====

-- This header can also be reused to support EFI stub for RISC-V in future. EFI
- specification needs PE/COFF image header in the beginning of the kernel image
- in order to load it as an EFI application. In order to support EFI stub,
- code0 should be replaced with "MZ" magic string and res3(at offset 0x3c) should
- point to the rest of the PE/COFF header.
+- This header is also reused to support EFI stub for RISC-V. EFI specification
+ needs PE/COFF image header in the beginning of the kernel image in order to
+ load it as an EFI application. In order to support EFI stub, code0 is replaced
+ with "MZ" magic string and res3(at offset 0x3c) points to the rest of the
+ PE/COFF header.

- version field indicate header version number

--
2.39.2