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[Xen-devel] about mini-os
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | [Xen-devel] about mini-os |
| From: | "余上" <yusunn@xxxxxxxxx> |
| Date: | Tue, 22 Jan 2008 17:23:18 +0800 |
| Delivery-date: | Tue, 22 Jan 2008 01:23:46 -0800 |
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Hi all ,
I find that it needs some hacks to run mini-os under xen-3.2 ,
followings are what I have done:
1, mini-os/arch/x86/x86_32.S , change the __xen_guest config :
from
.ascii ",VIRT_BASE=0x0" /* &_text from minios_x86_32.lds */
.ascii ",ELF_PADDR_OFFSET=0x0"
to
.ascii ",VIRT_BASE=0x0C0000000" /* &_text from minios_x86_32.lds */
.ascii ",ELF_PADDR_OFFSET=0x0C0000000"
because if I don't change VIRT_BASE xen will report "Initial loading
isn't allowed to lowest 1GB of memory"
2, mini-os/arch/x86/minios-x86_32.lds
from
. = 0x0;
to
. = 0x0C0000000;
so far , I can run mini-os to the banner and got a page fault:
Bootstraping ...
Xen Minimal OS!
Page fault at linear address 15555c08, eip c000cf61, code 0
(XEN) Domain 0 crashed
any idea ? Thank you very much
yushang
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