linux-kernel - Re: [Xen-devel] [PATCH v2] xen, kdump: handle pv domain in paddr_vmcoreinfo

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Date:   Mon, 3 Apr 2017 14:42:57 +0200
From:   Daniel Kiper <dkiper@...-space.pl>
To:     Juergen Gross <jgross@...e.com>
Cc:     linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org,
        boris.ostrovsky@...cle.com, ptesarik@...e.com,
        daniel.kiper@...cle.com, eric.devolder@...cle.com,
        konrad.wilk@...cle.com, andrew.cooper3@...rix.com
Subject: Re: [Xen-devel] [PATCH v2] xen, kdump: handle pv domain in paddr_vmcoreinfo_note()

On Fri, Mar 31, 2017 at 12:14:38PM +0200, Juergen Gross wrote:
> For kdump to work correctly it needs the physical address of
> vmcoreinfo_note. When running as dom0 this means the virtual address
> has to be translated to the related machine address.
>
> paddr_vmcoreinfo_note() is meant to do the translation via
> __pa_symbol() only, but being attributed "weak" it can be replaced
> easily in Xen case.
>
> Signed-off-by: Juergen Gross <jgross@...e.com>

Have you tested this patch with latest crash tool? Do dom0 and Xen
hypervisor analysis work without any issue (at least basic commands
like dmesg, bt, ps, etc.)? If yes for both you can add:

Reviewed-by: Daniel Kiper <daniel.kiper@...cle.com>

Daniel