From: Atish Patra atish.patra@wdc.com
commit a78c6f5956a949b496a5b087188dde52483edf51 upstream.
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") Cc: stable@vger.kernel.org Signed-off-by: Atish Patra atish.patra@wdc.com Signed-off-by: Palmer Dabbelt palmerdabbelt@google.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/riscv/mm/init.c | 1 + 1 file changed, 1 insertion(+)
--- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -515,6 +515,7 @@ asmlinkage void __init setup_vm(uintptr_ #else dtb_early_va = (void *)dtb_pa; #endif + dtb_early_pa = dtb_pa; }
static inline void setup_vm_final(void)