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From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Anthony PERARD <anthony.perard@citrix.com>
Cc: Keir Fraser <keir@xen.org>,
	Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	Ian Jackson <ian.jackson@eu.citrix.com>,
	xen-devel@lists.xen.org, Jan Beulich <jbeulich@suse.com>,
	Wei Liu <wei.liu2@citrix.com>
Subject: Re: [PATCH v4 08/14] hvmloader: Locate the BIOS blob
Date: Thu, 17 Mar 2016 13:57:45 -0400	[thread overview]
Message-ID: <20160317175745.GA28318@localhost.localdomain> (raw)
In-Reply-To: <20160317174600.GF27408@perard.uk.xensource.com>

> I'll do that. I'm using to many BUG_ON in this code.
> 
> > > +        {
> > > +            BUG_ON(!modlist[i].paddr || modlist[i].paddr > UINT_MAX ||
> > > +                   modlist[i].size > UINT_MAX);
> > 
> > To be fair all of those values are in spec..Perhaps you should mention
> > that the libxc code would never put those there and neermind the spec?
> 
> Yes, there is just this mention in the spec: "However Xen will always try
> to place all modules below the 4GiB boundary."
> 
> But it actualy would be a bug if the blob would be abrove 4GiB, since
> hvmloader can not read that far, right? I can add a comment.

Well no. It says that the hypervisor will 'try', not that it 'MUST'.

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  reply	other threads:[~2016-03-17 17:57 UTC|newest]

Thread overview: 73+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-14 17:55 [PATCH v4 00/14] Load BIOS via toolstack instead of been embedded in hvmloader Anthony PERARD
2016-03-14 17:55 ` [PATCH v4 01/14] libxc: Rework extra module initialisation Anthony PERARD
2016-03-16  0:06   ` Konrad Rzeszutek Wilk
2016-03-17 16:24     ` Anthony PERARD
2016-03-14 17:55 ` [PATCH v4 02/14] libxc: Prepare a start info structure for hvmloader Anthony PERARD
2016-03-16  0:18   ` Konrad Rzeszutek Wilk
2016-03-16 18:01     ` Boris Ostrovsky
2016-03-17 16:48       ` Anthony PERARD
2016-03-17 16:28     ` Anthony PERARD
2016-03-14 17:55 ` [PATCH v4 03/14] configure: #define SEABIOS_PATH and OVMF_PATH Anthony PERARD
2016-03-16  0:20   ` Konrad Rzeszutek Wilk
2016-04-08 13:38   ` Wei Liu
2016-03-14 17:55 ` [PATCH v4 04/14] firmware/makefile: install BIOS blob Anthony PERARD
2016-03-16  0:26   ` Konrad Rzeszutek Wilk
2016-03-16  8:54     ` Dario Faggioli
2016-03-16  8:56       ` Konrad Rzeszutek Wilk
2016-03-17 16:58     ` Anthony PERARD
2016-03-17 17:37   ` Doug Goldstein
2016-03-17 18:33     ` Anthony PERARD
2016-03-18 21:11       ` Jim Fehlig
2016-03-19  0:43       ` Doug Goldstein
2016-04-18 14:31   ` Doug Goldstein
2016-04-19 13:11     ` Stefano Stabellini
2016-03-14 17:55 ` [PATCH v4 05/14] libxl: Load guest BIOS from file Anthony PERARD
2016-03-16  0:53   ` Konrad Rzeszutek Wilk
2016-03-16  9:27     ` Dario Faggioli
2016-03-17 17:24       ` Anthony PERARD
2016-03-14 17:55 ` [PATCH v4 06/14] xen: Move the hvm_start_info C representation from libxc to public/xen.h Anthony PERARD
2016-03-15  8:09   ` Jan Beulich
2016-03-16  0:59     ` Konrad Rzeszutek Wilk
2016-03-16  1:00       ` Konrad Rzeszutek Wilk
2016-03-16  8:32       ` Jan Beulich
2016-03-21 17:04     ` Roger Pau Monné
2016-03-21 17:21       ` Jan Beulich
2016-03-14 17:55 ` [PATCH v4 07/14] hvmloader: Grab the hvm_start_info pointer Anthony PERARD
2016-03-16  1:07   ` Konrad Rzeszutek Wilk
2016-04-05 12:43   ` Jan Beulich
2016-03-14 17:55 ` [PATCH v4 08/14] hvmloader: Locate the BIOS blob Anthony PERARD
2016-03-16  1:14   ` Konrad Rzeszutek Wilk
2016-03-17 17:46     ` Anthony PERARD
2016-03-17 17:57       ` Konrad Rzeszutek Wilk [this message]
2016-03-18  7:34       ` Jan Beulich
2016-04-05 12:59   ` Jan Beulich
2016-04-05 14:05     ` Roger Pau Monné
2016-04-05 14:23       ` Jan Beulich
2016-04-07 15:10     ` Anthony PERARD
2016-04-07 15:30       ` Jan Beulich
2016-03-14 17:55 ` [PATCH v4 09/14] hvmloader: Check modules whereabouts in perform_tests Anthony PERARD
2016-03-16  1:23   ` Konrad Rzeszutek Wilk
2016-03-17 18:08     ` Anthony PERARD
2016-04-05 13:07   ` Jan Beulich
2016-03-14 17:55 ` [PATCH v4 10/14] hvmloader: Load SeaBIOS from hvm_start_info modules Anthony PERARD
2016-03-16  1:27   ` Konrad Rzeszutek Wilk
2016-03-16  1:27     ` Konrad Rzeszutek Wilk
2016-04-05 13:11   ` Jan Beulich
2016-03-14 17:55 ` [PATCH v4 11/14] hvmloader: Load OVMF from modules Anthony PERARD
2016-03-16  1:36   ` Konrad Rzeszutek Wilk
2016-04-05 13:16   ` Jan Beulich
2016-03-14 17:55 ` [PATCH v4 12/14] hvmloader: Specific bios_load function required Anthony PERARD
2016-03-16  1:38   ` Konrad Rzeszutek Wilk
2016-03-17 18:25     ` Anthony PERARD
2016-03-14 17:55 ` [PATCH v4 13/14] hvmloader: Always build-in SeaBIOS and OVMF loader Anthony PERARD
2016-03-14 17:55 ` [PATCH v4 14/14] configure: do not depend on SEABIOS_PATH or OVMF_PATH Anthony PERARD
2016-03-16  1:40   ` Konrad Rzeszutek Wilk
2016-04-08 13:38   ` Wei Liu
2016-03-24 17:55 ` [PATCH v4 00/14] Load BIOS via toolstack instead of been embedded in hvmloader Jim Fehlig
2016-03-30 17:22 ` Jim Fehlig
2016-03-31  7:20   ` Jan Beulich
     [not found]   ` <56FCEBCD02000078000E19BF@suse.com>
2016-03-31 14:36     ` Jim Fehlig
2016-03-31 16:49       ` George Dunlap
2016-04-01  9:12         ` George Dunlap
2016-04-01 14:24           ` Konrad Rzeszutek Wilk
2016-04-01 20:06           ` Jim Fehlig

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