diff options
| author |  Atish Patra <atish.patra@wdc.com>
| 2020-10-01 12:04:56 -0700 |
|---|---|---|
| committer |  Palmer Dabbelt <palmerdabbelt@google.com>
| 2020-10-04 16:19:28 -0700 |
| commit | a78c6f5956a949b496a5b087188dde52483edf51 (patch) | |
| tree | 67ba16a086caf75f694114ec18032acd38e81976 /arch/riscv | |
| parent | Linux 5.9-rc8 (diff) | |
| download | linux-a78c6f5956a949b496a5b087188dde52483edf51.tar.gz linux-a78c6f5956a949b496a5b087188dde52483edf51.tar.bz2 linux-a78c6f5956a949b496a5b087188dde52483edf51.zip | |
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: 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>
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/mm/init.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index ca03762a3733..f750e012dbe5 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -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) |