Unverified Commit a78c6f59 authored Oct 01, 2020 by Atish Patra Committed by Palmer Dabbelt Oct 04, 2020

RISC-V: Make sure memblock reserves the memory containing DT



Currently, the memory containing DT is not reserved. Thus, that region
of memory can be reallocated or reused for other purposes. This may result
in  corrupted DT for nommu virt board in Qemu. We may not face any issue
in kendryte as DT is embedded in the kernel image for that.

Fixes: 6bd33e1e ("riscv: add nommu support")
Cc: stable@vger.kernel.org
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

parent 549738f1

arch/riscv/mm/init.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -515,6 +515,7 @@ asmlinkage void __init setup_vm(uintptr_t dtb_pa)
		#else
		dtb_early_va = (void *)dtb_pa;
		#endif
		dtb_early_pa = dtb_pa;
		}

		static inline void setup_vm_final(void)

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