[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Xen-devel] [PATCH] x86/mm: fix dump_pagetables with Xen PV
- To: Juergen Gross <jgross@xxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, x86@xxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
- From: Julien Grall <julien@xxxxxxx>
- Date: Fri, 21 Feb 2020 10:51:28 +0000
- Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>
- Delivery-date: Fri, 21 Feb 2020 10:51:50 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Hi Juergen,
On 21/02/2020 10:38, Juergen Gross wrote:
Commit 2ae27137b2db89 ("x86: mm: convert dump_pagetables to use
walk_page_range") broke Xen PV guests as the hypervisor reserved hole
in the memory map was not taken into account.
Fix that by starting the kernel range only at GUARD_HOLE_END_ADDR.
Fixes: 2ae27137b2db89 ("x86: mm: convert dump_pagetables to use
walk_page_range")
Reported-by: Julien Grall <julien@xxxxxxx>
Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
I can confirm the crash has now disappeared:
Tested-by: Julien Grall <julien@xxxxxxx>
Cheers,
--
Julien Grall
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel
|
