[Xen-devel] [PATCH] paging disabled handling for gdbserver-xen

To:	<Keir.Fraser@xxxxxxxxxxxx>, "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Subject:	[Xen-devel] [PATCH] paging disabled handling for gdbserver-xen
From:	"Kamble, Nitin A" <nitin.a.kamble@xxxxxxxxx>
Date:	Mon, 20 Mar 2006 10:58:28 -0800
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Delivery-date:	Mon, 20 Mar 2006 19:11:16 +0000
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Thread-topic:	[PATCH] paging disabled handling for gdbserver-xen

Hi Keir, Ian,

The current ptrace code is traversing the page table structures to guest guest physical address, even when the guest paging is disabled. The gdbserver-xen tries to access guest pdes & ptes to map memory of hvm guest being debugged; and it gets a seg-fault because guest has not setup it’s paging yet. The attached patch adds guest paging state check, so that the map_domain_va() can get the correct guest physical address from guest va. Please apply.

Signed-Off-By: Nitin A Kamble <nitin.a.kamble@xxxxxxxxx>

xc_ptrace.c | 58 +++++++++++++++++++++++++++++++---------------------------

1 files changed, 31 insertions(+), 27 deletions(-)

Thanks & Regards,

Nitin

-----------------------------------------------------------------------------------

Open Source Technology Center, Intel Corp

gdbserver_paging_disabled.patch
Description: gdbserver_paging_disabled.patch

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[Xen-devel] [PATCH] paging disabled handling for gdbserver-xen