Hi Bin,
-----Original Message----- From: Heinrich Schuchardt [mailto:xypron.glpk@gmx.de] Sent: Tuesday, September 3, 2019 12:21 PM To: Park, Aiden aiden.park@intel.com; Bin Meng bmeng.cn@gmail.com; Alexander Graf agraf@csgraf.de; u-boot@lists.denx.de Subject: Re: [PATCH v3 2/2] x86: efi_loader: Use efi_add_conventional_memory_map()
On 9/3/19 7:43 PM, Park, Aiden wrote:
Use efi_add_conventional_memory_map() to configure EFI conventional memory properly with ram_top value. This will give 32bit mode U-Boot proper conventional memory regions even if e820 has a entry which is greater than 32bit address space.
Signed-off-by: Aiden Park aiden.park@intel.com
Together with Bin's patch series for supporting >3GB (https://lists.denx.de/pipermail/u-boot/2019-August/382332.html) I see the following memory map on an 8GB qemu-x86_defconfig (CONFIG_CMD_EFIDEBUG=y):
==> efidebug memmap Type Start End Attributes ================ ================ ================ ========== CONVENTIONAL 0000000000000000-00000000000a0000 WB RESERVED 00000000000a0000-0000000000100000 WB CONVENTIONAL 0000000000100000-00000000becf4000 WB LOADER DATA 00000000becf4000-00000000becf5000 WB BOOT DATA 00000000becf5000-00000000becf6000 WB RUNTIME DATA 00000000becf6000-00000000bed07000 WB|RT BOOT DATA 00000000bed07000-00000000bed09000 WB RESERVED 00000000bed09000-00000000bed0a000 WB BOOT DATA 00000000bed0a000-00000000bed0c000 WB RUNTIME DATA 00000000bed0c000-00000000bed0d000 WB|RT LOADER DATA 00000000bed0d000-00000000bff4f000 WB RUNTIME CODE 00000000bff4f000-00000000bff50000 WB|RT LOADER DATA 00000000bff50000-00000000c0000000 WB RESERVED 00000000e0000000-00000000f0000000 WB BOOT DATA 0000000100000000-0000000240000000 WB
Close to 3GB in low memory and 5 GB above the 4GB boundary.
Tested-by: Heinrich Schuchardt xypron.glpk@gmx.de Reviewed-by: Heinrich Schuchardt xypron.glpk@gmx.de
@Bin: If you plan to create a pull request for RC4, you can take both patches to avoid unnecessary dependencies.
Otherwise I will try to get patch 1/2 into RC4.
In U-Boot master branch, it looks Heinrich did pull request with patch 1/2 and it was already merged. Can you merge patch 2/2 as well? This blocks OS booting on real hardware. Appreciate your help.
Best regards
Heinrich
Best Regards, Aiden