Re: [Xen-users] Problem compiling Xen-4.7 with qemu-traditional for IGD passthrough

[Mark Pryor <tlviewer@xxxxxxxxx>]

Yakkety gcc is 6.1, with fPIE turned on.

The rombios Makefile needs an edit to disable PIE.

# special for rombios
	sed -i -e '/^CFLAGS/ s/$$/ -fno-pie/' tools/firmware/rombios/32bit/tcgbios/Makefile ; \
	sed -i -e '/^CFLAGS/ s/$$/ -fno-pie/' tools/firmware/rombios/32bit/Makefile ;

My detailed Debianised rules file is here:

http://107.185.103.5/xen/ubuntu/xenial/48x/source/debian/rules

PyrMar56

On Tuesday, January 3, 2017 3:00 AM, Roger Pau Monné <roger.pau@xxxxxxxxxx> wrote:

On Sun, Jan 01, 2017 at 09:48:10PM -0500, Bill Mccabe wrote:
> Hi,
>
> I have an old thinkpad x201 tablet which has Vt-d support enabled and I am
> trying to perform igd passthrough in Xen.
>
> It is my understanding that in order to attempt to do this I need to
> compile Xen with qemu-traditional.
>
> However, the building of the Xen-4.7 package fails with the
> qemu-traditional option enabled with the following error:
>
> ld -melf_i386 -s -r 32bitbios.o tcgbios/tcgbiosext.o util.o pmm.o -o
> 32bitbios_all.o
>
> There are undefined symbols in the BIOS:
>
>          U _GLOBAL_OFFSET_TABLE_
>
> Makefile:25: recipe for target '32bitbios_all.o' failed
>
> make[11]: *** [32bitbios_all.o] Error 11
>
> make[11]: Leaving directory
> '/usr/local/src/xen-4.7.0/debian/build/build-utils_amd64/tools/firmware/rombios/32bit'
>
> Makefile:12: recipe for target 'all' failed
>
> make[10]: *** [all] Error 2
>
> make[10]: Leaving directory
> '/usr/local/src/xen-4.7.0/debian/build/build-utils_amd64/tools/firmware/rombios/32bit'
>
> /usr/local/src/xen-4.7.0/debian/build/build-utils_amd64/tools/firmware/rombios/../../../tools/Rules.mk:218:
> recipe for target 'subdir-all-32bit' failed
>
> make[9]: *** [subdir-all-32bit] Error 2
>
> make[9]: Leaving directory
> '/usr/local/src/xen-4.7.0/debian/build/build-utils_amd64/tools/firmware/rombios'
>
> /usr/local/src/xen-4.7.0/debian/build/build-utils_amd64/tools/firmware/rombios/../../../tools/Rules.mk:213:
> recipe for target 'subdirs-all' failed
>
> make[8]: *** [subdirs-all] Error 2
>
>
> I am compiling Xen-4.7 from the ubuntu source package using
> dpkg-buildpackage -rfakeroot on ubuntu Yakkety 16.10 with the following
> configure options:
>
>  --disable-docs --disable-stubdom --disable-xen \
>
>                        --prefix=/usr \
>
>                        --includedir=/usr/include \
>
>                        --libdir=/usr/lib/$(DEB_HOST_MULTIARCH) \
>
>                        --mandir=/usr/share/man \
>
>                        --infodir=/usr/share/info \
>
>                        --sysconfdir=/etc \
>
>                        --localstatedir=/var \
>
>                        --with-libexec-leaf-dir=xen-$(VERSION) \
>
>                        --disable-blktap1 \
>
>                        --disable-blktap2 \
>
>                        --disable-ocamltools \
>
>                        --enable-qemu-traditional --enable-rombios \
>
>
> --with-system-seabios=/usr/share/seabios/bios-256k.bin

Do you really need QEMU traditional and ROMBIOS? If not, I would suggest that
you remove both --enable-qemu-traditional and --enable-rombios from your
configure line and try again.

Note that you will get QEMU upstream and SeaBIOS by default, which is what's
recommended.

Roger.

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