linux-dev/arch/loongarch/boot, branch masterLinux kernel development work - see feature brancheshttps://git.zx2c4.com/linux-dev/atom/arch/loongarch/boot?h=master2022-09-20T07:50:31Zloongarch: efi: enable generic EFI compressed boot2022-09-20T07:50:31ZArd Biesheuvelardb@kernel.org2022-08-22T12:39:49Zurn:sha1:c5d5cba795e29ad659271a7ed2dbc87ce1104f7c
Wire up the generic EFI zboot support for LoongArch64
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
efi/loongarch: Add efistub booting support2022-09-06T09:19:34ZHuacai Chenchenhuacai@loongson.cn2022-08-19T10:20:37Zurn:sha1:ead384d956345681e1ddf97890d5e15ded015f07
This patch adds efistub booting support, which is the standard UEFI boot
protocol for LoongArch to use.
We use generic efistub, which means we can pass boot information (i.e.,
system table, memory map, kernel command line, initrd) via a light FDT
and drop a lot of non-standard code.
We use a flat mapping to map the efi runtime in the kernel's address
space. In efi, VA = PA; in kernel, VA = PA + PAGE_OFFSET. As a result,
flat mapping is not identity mapping, SetVirtualAddressMap() is still
needed for the efi runtime.
Tested-by: Xi Ruoyao <xry111@xry111.site>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
[ardb: change fpic to fpie as suggested by Xi Ruoyao]
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
LoongArch: Add build infrastructure2022-06-03T12:09:27ZHuacai Chenchenhuacai@loongson.cn2022-05-31T10:04:11Zurn:sha1:fa96b57c149061f71a70bd6582d995f6424fbbf4
Add Kbuild, Makefile, Kconfig and link script for LoongArch build
infrastructure.
Reviewed-by: Guo Ren <guoren@kernel.org>
Reviewed-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>