[Xen-devel] Re: xen-kernel and EDD

[Lin-Bao Zhang <2004.zhang@xxxxxxxxx>]

yes, redhat has adopted this modification:

1. Change BOOT_TRAMPOLINE to 0x7c000
 2. In xen/arch/x86/boot/head.S, change the line 'mov $0x98000,%esp' to 'mov
 $0x80000,%esp'.
we are testing various cases.

I will update our testing result ASAP.


2011/8/23 Paolo Bonzini <pbonzini@xxxxxxxxxx>:
> On 08/18/2011 01:04 PM, Keir Fraser wrote:
>>>
>>> >  0x95400 - 0x90000 = 0x5400 = 21KBytes.
>>> >
>>> >  21Kbytes is enough for gen.gz running(hypervisor) ?
>
> The trampoline is even smaller than 21K.  The problem is that the stack (at
> 0x98000) is overlapping the EBDA.
>
> I suggest that you open a support case with Red Hat.  We do plan to make
> this change, but the process is much easier if we have an open ticket that
> requests it.
>
> Paolo
>

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