From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ross Philipson Subject: Re: HVM firmware passthrough - helper library Date: Mon, 1 Apr 2013 18:04:48 -0400 Message-ID: <515A0480.5000407@citrix.com> References: <831D55AF5A11D64C9B4B43F59EEBF720A31FBE1BC0@FTLPMAILBOX02.citrite.net> <1363806237.80975.YahooMailNeo@web161405.mail.bf1.yahoo.com> <514A172D.8050605@citrix.com> <1363894935.85161.YahooMailNeo@web161402.mail.bf1.yahoo.com> <514F6BAC.4010709@citrix.com> <1364359855.76582.YahooMailNeo@web161404.mail.bf1.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1364359855.76582.YahooMailNeo@web161404.mail.bf1.yahoo.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Art Napor Cc: "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org On 03/27/2013 12:50 AM, Art Napor wrote: > Works great with the updated libxl commits - thanks. > > > ./biospt 6 > > Make SMBIOS file from FW. > > Fail(1), errno: 2 > > Looks like this does require the sysfs-dmi kmod to expose the dmi > structure for the utility to write out the smbios_fw.bin. > > # ./biospt 6 > Make SMBIOS file from FW. > Make SMBIOS Xen vendor struct. > Wrote SMBIOS structures file: smbios_fw.bin count: 8 > Make ACPI SLIC file from FW. > Fail(3), errno: 2 > > Do the ACPI tables require the same exposure via sysfs? Not sure if this > changes from 2.6 to 3.x kernels. The biospt utility can dump the ACPI > tables using the MMAP option, but not via sysfs on a 3.4.32 system. They are in the same place on my wheezy with 3.2.x kernel. I would be pretty surprised if they moved. Can you go in to /sys/firmware/acpi/tables and see what's there? Maybe try a hexdump -C < SLIC ... > > > Thanks, > Art > > > ------------------------------------------------------------------------ > *From:* Ross Philipson > *To:* Art Napor ; "xen-devel@lists.xensource.com" > > *Sent:* Sunday, March 24, 2013 5:10 PM > *Subject:* Re: HVM firmware passthrough - helper library > > On 03/21/2013 03:42 PM, Art Napor wrote: > > Ross, > > > > I rebuilt Xen 4.2.1 with the V5 patch series and the updated helper > > library. The biospt utility built cleanly and runs on Dom0 with the > > aformentioned libraries in place. However, I'm not seeing the SMBIOS > > strings passed through to the DomU (A Centos 5 VM). Options 1 and 3 > > using the biostpt utility appear to dump the SMBIOS and ACPI tables, but > > I'm not sure how to pass the tables in to the VM? > > Look at the related commits to libxl. After the firmware chunks are > given to libxc to load into the new domain, the addresses are returned > to libxl which writes them to xenstore. > > > > > [root@localhost biospt]# ./biospt > > Usage: > > $ biospt > > 1 - Write some SMBIOS tables using MMAP > > 2 - Write some SMBIOS tables using SYSFS > > 3 - Write some ACPI tables using MMAP > > 4 - Write some ACPI using SYSFS > > 5 - Read and trace DMI files > > 6 - Write out some test files > > > > ./biospt 6 > > Make SMBIOS file from FW. > > Fail(1), errno: 2 > > This is a rather rough test app for using the library. You should look > closely at the code in it and figure out what it is doing. It does not > have very robust error handling etc. > > Thanks > Ross > > > > > > > - > > Art > > > > ------------------------------------------------------------------------ > > *From:* Ross Philipson > > > *To:* xen-devel@lists.xensource.com > > > *Cc:* Art Napor > > > *Sent:* Wednesday, March 20, 2013 4:08 PM > > *Subject:* Re: HVM firmware passthrough - helper library > > > > > > > Ross, > > > > > > Finally got back to this project to test out the helper lib using > the v3 > > > hvm-firmware passthrough patches with Xen 4.2.1. When building from > > > tools/firmware the build failed with the following output: > > > > > > make > > > gcc -Wl,-soname -Wl,libxenhvm.so.1.0 -shared -o libxenhvm.so.1.0.0 > > > xenhvm.opic smbios_module.opic acpi_module.opic xh_internal.opic > > > > > > /home/ajn131/rpmbuild/SOURCES/xen-4.2.1/tools/firmware/libhvm/../../../tools/xenstore/libxenstore.so > > > > > > xenhvm.opic: could not read symbols: File in wrong format > > > collect2: ld returned 1 exit status > > > make: *** [libxenhvm.so.1.0.0] Error 1 > > > > > > I was hoping to integrate the build into the RPM. Any thoughts? > Should I > > > try it with the latest 4.3? > > > > > > > > > Thanks Again, > > > > > > - > > > Art > > > > Art, > > > > Can you try the attached tarball. A colleague found and fixed a couple > > of issues in my sample including the face that it was including in the > > wrong Rules.mk. > > > > Thanks > > Ross > > > > > > ------------------------------------------------------------------------ > > > *From:* Ross Philipson > > >> > > > *To:* "xen-devel@lists.xensource.com > > >

> >

>> > > > *Cc:* "Art Napor (artnapor@yahoo.com > >)" > > > >> > > > *Sent:* Tuesday, January 8, 2013 5:04 PM > > > *Subject:* HVM firmware passthrough - helper library > > > > > > Attached is a tarball with a helper library for reading host ACPI and > > > SMBIOS firmware and creating firmware files that can be used with the > > > HVM firmware passthrough patches I submitted. I used it in my > testing of > > > the patches and planned to use it later when we moved to a new Xen > > > version. This library was requested by a few people - I hope you > find it > > > useful. > > > > > > Ross Philipson > > > Senior Software Engineer > > > Citrix Systems, Inc > > > 14 Crosby Drive > > > Bedford, MA 01730 > > > 781-301-7949 > > > ross.philipson@citrix.com > > > > > >> > > > > > > > > > > > > > > > >