From: "Jan Beulich" <JBeulich@suse.com>
To: Paul Durrant <Paul.Durrant@citrix.com>
Cc: Juergen Gross <jgross@suse.com>,
AndrewCooper <Andrew.Cooper3@citrix.com>,
"Julien Grall (julien.grall@arm.com)" <julien.grall@arm.com>,
'BorisOstrovsky' <boris.ostrovsky@oracle.com>,
"xen-devel(xen-devel@lists.xenproject.org)"
<xen-devel@lists.xenproject.org>
Subject: Re: debian stretch dom0 + xen 4.9 fails to boot
Date: Wed, 07 Jun 2017 06:00:28 -0600 [thread overview]
Message-ID: <593806FC02000078001604D1@prv-mh.provo.novell.com> (raw)
In-Reply-To: <056e566f141c4715867e2bdbbe418977@AMSPEX02CL03.citrite.net>
>>> On 07.06.17 at 13:55, <Paul.Durrant@citrix.com> wrote:
>> From: Jan Beulich [mailto:JBeulich@suse.com]
>> Sent: 07 June 2017 12:50
>> 2) Provide the E820 map of that box.
>> I'm suspecting the BIOS might use an EBDA without recording it in
>> the low BIOS data area. If it's reported in E820 that would then
>> likely be the final kick for us to obey to the E820 map when
>> determining where to put the trampoline.
>>
>
> The stretch kernel booted bare-metal reports:
>
> [ 0.000000] e820: BIOS-provided physical RAM map:
> [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x00000000000963ff] usable
> [ 0.000000] BIOS-e820: [mem 0x0000000000096400-0x000000000009ffff] reserved
There we go. Subtracting 4k may then even be too little (depending
what EBDA and low memory values the system reports). Of course
it would be a BIOS bug if they reported some memory they use for
themselves through only E820, as that interface is not required to
be present, and really, really old software wouldn't even know
about it and would hence also be in trouble.
Jan
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next prev parent reply other threads:[~2017-06-07 12:00 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-06 14:32 debian stretch dom0 + xen 4.9 fails to boot Paul Durrant
2017-06-06 15:11 ` Jan Beulich
2017-06-06 15:51 ` Paul Durrant
2017-06-06 16:28 ` Paul Durrant
2017-06-06 17:00 ` Boris Ostrovsky
2017-06-07 8:07 ` Jan Beulich
2017-06-07 8:09 ` Paul Durrant
2017-06-07 8:19 ` Paul Durrant
2017-06-07 14:05 ` Boris Ostrovsky
2017-06-07 8:07 ` Paul Durrant
2017-06-07 8:27 ` Jan Beulich
[not found] ` <5937D4FF02000078001602F6@suse.com>
2017-06-07 9:03 ` Juergen Gross
2017-06-07 9:05 ` Paul Durrant
2017-06-07 9:09 ` Andrew Cooper
2017-06-07 10:36 ` Paul Durrant
2017-06-07 11:06 ` Paul Durrant
2017-06-07 11:57 ` Juergen Gross
2017-06-07 12:02 ` Paul Durrant
2017-06-07 12:13 ` Juergen Gross
2017-06-07 12:19 ` Jan Beulich
2017-06-07 12:26 ` Paul Durrant
2017-06-07 12:34 ` Jan Beulich
2017-06-07 11:50 ` Jan Beulich
2017-06-07 11:55 ` Paul Durrant
2017-06-07 12:00 ` Jan Beulich [this message]
2017-06-07 12:46 ` Paul Durrant
2017-06-07 12:55 ` Jan Beulich
2017-06-07 15:06 ` Paul Durrant
2017-06-07 15:33 ` Jan Beulich
2017-06-07 15:40 ` Paul Durrant
2017-06-07 15:52 ` Jan Beulich
2017-06-08 12:42 ` Paul Durrant
2017-06-08 12:46 ` Juergen Gross
2017-06-08 13:18 ` Jan Beulich
2017-06-08 13:24 ` Paul Durrant
2017-06-09 12:19 ` Paul Durrant
2017-06-09 13:05 ` Jan Beulich
2017-06-09 13:52 ` Boris Ostrovsky
2017-06-09 15:14 ` Paul Durrant
2017-06-09 15:41 ` Jan Beulich
2017-06-09 15:47 ` Paul Durrant
2017-06-09 15:58 ` Jan Beulich
2017-06-12 8:14 ` Paul Durrant
2017-06-12 10:40 ` Jan Beulich
2017-06-12 10:44 ` Paul Durrant
2017-06-12 10:53 ` Paul Durrant
2017-06-12 11:12 ` Jan Beulich
2017-06-12 12:05 ` Paul Durrant
2017-06-12 12:25 ` Paul Durrant
2017-06-12 13:54 ` Jan Beulich
2017-06-12 14:28 ` Paul Durrant
2017-06-12 14:43 ` Paul Durrant
2017-06-12 15:03 ` Paul Durrant
2017-06-12 15:07 ` Jan Beulich
2017-06-12 15:21 ` Paul Durrant
2017-06-06 17:40 ` Julien Grall
2017-06-07 8:05 ` Paul Durrant
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