Nick Kossifidis 148faea978 RISC-V: relocate DTB if it's outside memory region ... commit c6fe81191b upstream. In case the DTB provided by the bootloader/BootROM is before the kernel image or outside /memory, we won't be able to access it through the linear mapping, and get a segfault on setup_arch(). Currently OpenSBI relocates DTB but that's not always the case (e.g. if FW_JUMP_FDT_ADDR is not specified), and it's also not the most portable approach since the default FW_JUMP_FDT_ADDR of the generic platform relocates the DTB at a specific offset that may not be available. To avoid this situation copy DTB so that it's visible through the linear mapping. Signed-off-by: Nick Kossifidis <mick@ics.forth.gr> Link: https://lore.kernel.org/r/20220322132839.3653682-1-mick@ics.forth.gr Tested-by: Conor Dooley <conor.dooley@microchip.com> Fixes: f105aa940e ("riscv: add BUILTIN_DTB support for MMU-enabled targets") Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-05-12 12:30:04 +02:00
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cacheflush.c	riscv: Flush current cpu icache before other cpus	2021-10-04 18:24:15 -07:00
context.c	riscv: add ASID-based tlbflushing methods	2021-06-30 20:55:39 -07:00
extable.c	riscv: abstract out CSR names for supervisor vs machine mode	2019-11-05 09:20:42 -08:00
fault.c	riscv: Enable KFENCE for riscv64	2021-06-30 20:55:41 -07:00
hugetlbpage.c	hugetlbfs: remove hugetlb_add_hstate() warning for existing hstate	2020-06-03 20:09:46 -07:00
init.c	RISC-V: relocate DTB if it's outside memory region	2022-05-12 12:30:04 +02:00
kasan_init.c	riscv: Fix config KASAN && SPARSEMEM && !SPARSE_VMEMMAP	2022-03-08 19:12:42 +01:00
Makefile	riscv: Fix config KASAN && DEBUG_VIRTUAL	2022-03-08 19:12:42 +01:00
pageattr.c	RISC-V Patches for the 5.11 Merge Window, Part 1	2020-12-18 10:43:07 -08:00
physaddr.c	riscv: Introduce structure that group all variables regarding kernel mapping	2021-07-05 18:04:00 -07:00
ptdump.c	riscv: Fix PTDUMP output now BPF region moved back to module region	2021-07-06 15:21:27 -07:00
tlbflush.c	riscv: add ASID-based tlbflushing methods	2021-06-30 20:55:39 -07:00