From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
To: Juergen Gross <jgross@suse.com>,
linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org
Cc: ptesarik@suse.com
Subject: Re: [PATCH v2] xen,kdump: handle pv domain in paddr_vmcoreinfo_note()
Date: Fri, 31 Mar 2017 10:02:23 -0400 [thread overview]
Message-ID: <e4e8a2b8-10df-53e4-3467-d8690f5d7b14@oracle.com> (raw)
In-Reply-To: <20170331101438.28582-1-jgross@suse.com>
On 03/31/2017 06:14 AM, 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@suse.com>
Similar to Jan's concern, if bare-metal x86 people decide to have their
own paddr_vmcoreinfo_note() (and they usually build with !CONFIG_XEN) we
will have to update this again. I suppose we can deal with that if/when
it happens since we will discover this immediately.
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
next prev parent reply other threads:[~2017-03-31 14:03 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-31 10:14 Juergen Gross
2017-03-31 14:02 ` Boris Ostrovsky [this message]
2017-04-03 12:42 ` [Xen-devel] [PATCH v2] xen, kdump: " Daniel Kiper
2017-04-04 11:55 ` Juergen Gross
2017-04-11 12:45 ` Juergen Gross
2017-04-11 13:00 ` Daniel Kiper
2017-04-11 14:59 ` Petr Tesarik
2017-04-11 17:20 ` Daniel Kiper
2017-04-14 16:53 ` Petr Tesarik
2017-04-14 22:26 ` Daniel Kiper
2017-04-15 14:35 ` Petr Tesarik
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