Messages in this thread | | | From | Anup Patel <> | Date | Fri, 2 Oct 2020 15:41:57 +0530 | Subject | Re: [PATCH] RISC-V: Make sure memblock reserves the memory containing DT |
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On Fri, Oct 2, 2020 at 12:35 AM Atish Patra <atish.patra@wdc.com> wrote: > > 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: 6bd33e1ece52 ("riscv: add nommu support") > Signed-off-by: Atish Patra <atish.patra@wdc.com> > > --- > @Palmer This patch is applicable for v5.9 & before. This fix is already > part of the "RISC-V: Move DT mapping outof fixmap" patch from UEFI support > series. That's why, this patch doesn't need to go into for-next. > --- > arch/riscv/mm/init.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c > index 564e0be677b7..cabf1697e748 100644 > --- a/arch/riscv/mm/init.c > +++ b/arch/riscv/mm/init.c > @@ -510,6 +510,7 @@ 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) > -- > 2.25.1 >
Looks good to me.
Reviewed-by: Anup Patel <anup@brainfault.org>
Regards, Anup
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