[Xen-devel] Re: Mini-OS in dom0 - virtual memory problems

[Julian Stecklina <der_julian@xxxxxx>]

Grzegorz Milos wrote:
> Mini-OS assumes that the start of the text section is also the beginning 
> of virtual address space[1]. However, it is generally bad idea not to 
> start virtual address space at 4Mb boundary. The easiest way to fix your 
> problem is to move text to 0xc0000000 or 0xc0400000. More extensive fix, 
> which decouples VIRT_START from &_text is also possible, but I don't see 
> a reason why it would be needed. Instead I've included a runtime check. 
> Keir could you apply the patch?
I changed the beginning of text to 0xC0000000 and the page table setup 
seems to work, as does the rest of Mini-OS (except XenBus of course). 
Thank you very much!
Regards,
Julian


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