From: Ross Philipson <ross.philipson@citrix.com>
To: Art Napor <artnapor@yahoo.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Sent: Monday, April 1, 2013 6:04 PM
Subject: Re: HVM firmware passthrough - helper library
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 <
ross.philipson@citrix.com>
> *To:* Art Napor <
artnapor@yahoo.com>; "
xen-devel@lists.xensource.com"
> <
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 <n>
> > 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 <
ross.philipson@citrix.com> <mailto:
ross.philipson@citrix.com>>
> > *To:*
xen-devel@lists.xensource.com> <mailto:
xen-devel@lists.xensource.com>
> > *Cc:* Art Napor <
artnapor@yahoo.com <mailto:
artnapor@yahoo.com>>
> > *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 <
Ross.Philipson@citrix.com> <mailto:
Ross.Philipson@citrix.com>
> > <mailto:
Ross.Philipson@citrix.com <mailto:
Ross.Philipson@citrix.com>>>
> > > *To:* "
xen-devel@lists.xensource.com> <mailto:
xen-devel@lists.xensource.com>
> > <mailto:
xen-devel@lists.xensource.com> <mailto:
xen-devel@lists.xensource.com>>" <
xen-devel@lists.xensource.com> <mailto:
xen-devel@lists.xensource.com>
> > <mailto:
xen-devel@lists.xensource.com> <mailto:
xen-devel@lists.xensource.com>>>
> > > *Cc:* "Art Napor (
artnapor@yahoo.com <mailto:
artnapor@yahoo.com>
> <mailto:
artnapor@yahoo.com <mailto:
artnapor@yahoo.com>>)"
> > <
artnapor@yahoo.com <mailto:
artnapor@yahoo.com>
> <mailto:
artnapor@yahoo.com <mailto:
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 <mailto:
ross.philipson@citrix.com>
> <mailto:
ross.philipson@citrix.com <mailto:
ross.philipson@citrix.com>>
> > <mailto:
ross.philipson@citrix.com <mailto:
ross.philipson@citrix.com>
> <mailto:
ross.philipson@citrix.com <mailto:
ross.philipson@citrix.com>>>
> > >
> >
> >
> >
> >
> >
>
>
>