From mboxrd@z Thu Jan 1 00:00:00 1970 From: Fabio Fantoni Subject: Re: Update Seabios on xen-unstable Date: Fri, 04 Jan 2013 12:58:06 +0100 Message-ID: <50E6C3CE.6050609@tiscali.it> References: <50D305F2.1060109@tiscali.it> <1357128605.5668.3.camel@zakaz.uk.xensource.com> <50E4470B.9000302@tiscali.it> Reply-To: fantonifabio@tiscali.it Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============8807635143440304821==" Return-path: In-Reply-To: <50E4470B.9000302@tiscali.it> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: fantonifabio@tiscali.it Cc: anthony.perard@citrix.com, xen-devel , Ian Campbell , Stefano Stabellini List-Id: xen-devel@lists.xenproject.org Questo è un messaggio firmato digitalmente in formato MIME. --===============8807635143440304821== Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms080507040904020101090200" Questo è un messaggio firmato digitalmente in formato MIME. --------------ms080507040904020101090200 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Il 02/01/2013 15:41, Fabio Fantoni ha scritto: > Qemu still crashes if qxl is active and used but I don't think it is a = > seabios problem. > > I've been looking for the problem in xen but I didn't find a solution=20 > at the moment. I can tell that seabios is called by hvmloader that=20 > sets a few things like acpi and e820 mapping before calling it. Could=20 > it be that hvmloader does something that interferes with seabios, like = > imposing restrictions? > > In practice if I activate qxl but I use it only as stdvga I don't=20 > experience any problem except low video performance, but if I use it=20 > fully qemu crashes when spice start using qxl features, logging this=20 > error: > (/usr/sbin/xl:4658): Spice-CRITICAL **: red_memslots.c:123:get_virt:=20 > slot_id 194 too big, addr=3Dc2c2c2c2c2c2c2c2 > > The only other possibility that comes to mind is that not enough=20 > videoram is successifully set. I thought this problem was already=20 > solved some months ago with xen and qemu upstream patches. Could there = > be other problems preventing the assignment and use 128 mb of videoram?= > > Thanks for any reply. > I see this commit on seabios: > Commit:74c78786719b202557d4f177bd290ddd98e979fe > > * Add support for use as Xen HVM BIOS. > > SeaBIOS is called by Xen's hvmloader which does the basic platform > setup (PCI, APIC, etc) and provides the various BIOS tables. Therefore > avoid re-doing that setup and copy out the tables as necessary. A > simple data structure is defined to pass the addresses of these > tables. > > This patch also establishes the basic infrastructure to make > hypercalls, although it currently only uses it to query the hypervisor > version. > > Signed-off-by: Ian Campbell Can be enabled the reconstruction of the bios tables with seabios=20 instead of mantain hvmloader tables or is necessary hvmloader tables for = correct domU working? I want try if seabios tables solves the problem. If yes what I must change on seabios code for test it? 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