* Hardcoded PAGE_OFFSET in head.S
@ 2005-04-04 23:25 Jacob Gorm Hansen
2005-04-05 8:20 ` Keir Fraser
0 siblings, 1 reply; 2+ messages in thread
From: Jacob Gorm Hansen @ 2005-04-04 23:25 UTC (permalink / raw)
To: xen-devel
hi,
in kernel/head.S, I see the following:
.section __xen_guest
.ascii
"GUEST_OS=linux,GUEST_VER=2.6,XEN_VER=3.0,VIRT_BASE=0xC0000000"
^^^^^^^^^^^^^^^^^^^^
I wonder why setting VIRT_BASE here is necessary, as the ELF header
should contain this information already?
thanks,
Jacob
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: Hardcoded PAGE_OFFSET in head.S
2005-04-04 23:25 Hardcoded PAGE_OFFSET in head.S Jacob Gorm Hansen
@ 2005-04-05 8:20 ` Keir Fraser
0 siblings, 0 replies; 2+ messages in thread
From: Keir Fraser @ 2005-04-05 8:20 UTC (permalink / raw)
To: Jacob Gorm Hansen; +Cc: xen-devel
On 5 Apr 2005, at 00:25, Jacob Gorm Hansen wrote:
> in kernel/head.S, I see the following:
>
> .section __xen_guest
> .ascii
> "GUEST_OS=linux,GUEST_VER=2.6,XEN_VER=3.0,VIRT_BASE=0xC0000000"
> ^^^^^^^^^^^^^^^^^^^^
> I wonder why setting VIRT_BASE here is necessary, as the ELF header
> should contain this information already?
The load and entry address is c0100000, but we want to map memory from
c0000000 to better match the layout of native Linux (where the kernel
appears at phys address 1MB).
-- Keir
^ permalink raw reply [flat|nested] 2+ messages in thread
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2005-04-04 23:25 Hardcoded PAGE_OFFSET in head.S Jacob Gorm Hansen
2005-04-05 8:20 ` Keir Fraser
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