On Tue, Feb 12, 2019 at 11:31:03AM +0100, Alexander Graf wrote: > We currently only support to run grub on RISC-V as UEFI payload. Ideally, > we also only want to support running Linux underneath as UEFI payload. > > Prepare that with some Linux boot stub code. Once the arm64 target is > generalized, we can hook into that one and gain boot functionality. > > Signed-off-by: Alexander Graf <ag...@suse.de>
Reviewed-by: Daniel Kiper <daniel.ki...@oracle.com> But two nitpicks below... [...] > diff --git a/include/grub/riscv32/linux.h b/include/grub/riscv32/linux.h > new file mode 100644 > index 000000000..b8ed39407 > --- /dev/null > +++ b/include/grub/riscv32/linux.h > @@ -0,0 +1,41 @@ > +/* > + * GRUB -- GRand Unified Bootloader > + * Copyright (C) 2018 Free Software Foundation, Inc. > + * > + * GRUB is free software: you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation, either version 3 of the License, or > + * (at your option) any later version. > + * > + * GRUB is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License > + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. > + */ > + > +#ifndef GRUB_RISCV32_LINUX_HEADER > +#define GRUB_RISCV32_LINUX_HEADER 1 > + > +#define GRUB_LINUX_RISCV_MAGIC_SIGNATURE 0x52534356 /* 'RSCV' */ > + > +/* From linux/Documentation/riscv/booting.txt */ > +struct linux_riscv_kernel_header > +{ > + grub_uint32_t code0; /* Executable code */ > + grub_uint32_t code1; /* Executable code */ > + grub_uint64_t text_offset; /* Image load offset */ > + grub_uint64_t res0; /* reserved */ > + grub_uint64_t res1; /* reserved */ > + grub_uint64_t res2; /* reserved */ > + grub_uint64_t res3; /* reserved */ > + grub_uint64_t res4; /* reserved */ > + grub_uint32_t magic; /* Magic number, little endian, "RSCV" > */ > + grub_uint32_t hdr_offset; /* Offset of PE/COFF header */ > +}; > + > +# define linux_arch_kernel_header linux_riscv_kernel_header I do not think that we need a space between "#" and "define". > +#endif /* ! GRUB_RISCV32_LINUX_HEADER */ > diff --git a/include/grub/riscv64/linux.h b/include/grub/riscv64/linux.h > new file mode 100644 > index 000000000..29140e45e > --- /dev/null > +++ b/include/grub/riscv64/linux.h > @@ -0,0 +1,43 @@ > +/* > + * GRUB -- GRand Unified Bootloader > + * Copyright (C) 2018 Free Software Foundation, Inc. > + * > + * GRUB is free software: you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation, either version 3 of the License, or > + * (at your option) any later version. > + * > + * GRUB is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License > + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. > + */ > + > +#ifndef GRUB_RISCV64_LINUX_HEADER > +#define GRUB_RISCV64_LINUX_HEADER 1 > + > +#define GRUB_LINUX_RISCV_MAGIC_SIGNATURE 0x52534356 /* 'RSCV' */ > + > +#define GRUB_EFI_PE_MAGIC 0x5A4D > + > +/* From linux/Documentation/riscv/booting.txt */ > +struct linux_riscv_kernel_header > +{ > + grub_uint32_t code0; /* Executable code */ > + grub_uint32_t code1; /* Executable code */ > + grub_uint64_t text_offset; /* Image load offset */ > + grub_uint64_t res0; /* reserved */ > + grub_uint64_t res1; /* reserved */ > + grub_uint64_t res2; /* reserved */ > + grub_uint64_t res3; /* reserved */ > + grub_uint64_t res4; /* reserved */ > + grub_uint32_t magic; /* Magic number, little endian, "RSCV" > */ > + grub_uint32_t hdr_offset; /* Offset of PE/COFF header */ > +}; > + > +# define linux_arch_kernel_header linux_riscv_kernel_header Ditto. I can fix it before committing this patch. Are you OK with that? Daniel _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
