linux/arch/riscv
Torsten Duwe 49af7a2cd5
riscv/kexec: load initrd high in available memory
When initrd is loaded low, the secondary kernel fails like this:

 INITRD: 0xdc581000+0x00eef000 overlaps in-use memory region

This initrd load address corresponds to the _end symbol, but the
reservation is aligned on PMD_SIZE, as explained by a comment in
setup_bootmem().

It is technically possible to align the initrd load address accordingly,
leaving a hole between the end of kernel and the initrd, but it is much
simpler to allocate the initrd top-down.

Fixes: 838b3e2848 ("RISC-V: Load purgatory in kexec_file")
Signed-off-by: Torsten Duwe <duwe@suse.de>
Signed-off-by: Petr Tesarik <petr.tesarik.ext@huawei.com>
Cc: stable@vger.kernel.org
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/all/67c8eb9eea25717c2c8208d9bfbfaa39e6e2a1c6.1690365011.git.petr.tesarik.ext@huawei.com/
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-08-04 10:27:44 -07:00
..
boot RISC-V Devicetrees for v6.5 Part 2 2023-06-20 23:06:54 +02:00
configs RISC-V Patches for the 6.5 Merge Window, Part 1 2023-06-30 09:37:26 -07:00
errata Merge patch series "riscv: some CMO alternative related clean up" 2023-07-06 10:32:38 -07:00
include RISC-V Patches for the 6.5 Merge Window, Part 2 2023-07-07 10:07:19 -07:00
kernel riscv/kexec: load initrd high in available memory 2023-08-04 10:27:44 -07:00
kvm ARM64: 2023-07-03 15:32:22 -07:00
lib riscv: Allow to downgrade paging mode from the command line 2023-04-26 07:30:52 -07:00
mm RISC-V Patches for the 6.5 Merge Window, Part 2 2023-07-07 10:07:19 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-03-09 22:22:11 -08:00
purgatory hardening updates for v6.5-rc1 2023-06-27 21:24:18 -07:00
tools riscv: Check relocations at compile time 2023-04-19 07:46:32 -07:00
Kbuild riscv: move errata/ and kvm/ builds to arch/riscv/Kbuild 2022-06-01 22:26:32 -07:00
Kconfig RISC-V Patches for the 6.5 Merge Window, Part 2 2023-07-07 10:07:19 -07:00
Kconfig.debug
Kconfig.errata Merge patch series "RISC-V: Fixes for riscv_has_extension[un]likely()'s alternative dependency" 2023-03-29 12:26:38 -07:00
Kconfig.socs RISC-V: make ARCH_THEAD preclude XIP_KERNEL 2023-07-05 22:21:23 +02:00
Makefile riscv: Enable Vector code to be built 2023-06-08 07:16:56 -07:00
Makefile.postlink riscv: Use --emit-relocs in order to move .rela.dyn in init 2023-04-19 07:46:33 -07:00