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Re: [Qemu-devel] mach-virt RAM start address
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From: |
Peter Maydell |
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Subject: |
Re: [Qemu-devel] mach-virt RAM start address |
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Date: |
Sat, 5 Oct 2013 13:49:17 +0900 |
On 5 October 2013 13:41, Giridhar Maruthy <address@hidden> wrote:
> I am using mach-virt in qemu which boots correctly when RAM start
> address is 0x8000000. But if I change the address to anything like
> 0x9000000, the mach-virt machine just hangs, not even an error
> message.
The kernel automatically figures out where in physical memory it should
decompress itself to (CONFIG_AUTO_ZRELADDR), but the mechanism
it uses to do this assumes that RAM starts at a 128MB boundary.
So we must keep the board's RAM start address at a 128MB boundary.
Why did you want to move VIRT_MEM up? There's plenty of space
below it still, I would have thought.
-- PMM