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Lee Lup Yuen 2023-11-11 13:44:09 +08:00
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@ -1801,6 +1801,16 @@ Which says...
1. NuttX mounts the RAM Disk from `__ramdisk_start`. (Memory Region for the RAM Disk)
_But 32 KB sounds so arbitrary. What if the parameters change?_
That's why we have a Runtime Check: [jh7110_start.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/ox64a/arch/risc-v/src/jh7110/jh7110_start.c#L190-L245)
```c
// RAM Disk must be after Idle Stack
if (ramdisk_addr <= (uint8_t *)JH7110_IDLESTACK_TOP) { _info("RAM Disk must be after Idle Stack"); }
DEBUGASSERT(ramdisk_addr > (uint8_t *)JH7110_IDLESTACK_TOP);
```
_Why did we call local_memmove to copy `initrd` to `__ramdisk_start`? Why not memcpy?_
That's because `initrd` overlaps with `__ramdisk_start`!