On Wed, Mar 30, 2011 at 10:42 PM, Stefan Berger <stef...@linux.vnet.ibm.com> wrote: > The TPM interface (tpm_tis) needs to be explicitly enabled via > ./configure --enable-tpm. This restricts the building of the > TPM support to i386 and x86_64 targets since both backends I know > of, the Xen backend and the libtpms-based backend, will likely only > be available for these targets, at least initially. The list can be > easily extend. This measure prevents that one will end up with support > for a frontend but no available backend. > > Signed-off-by: Stefan Berger <stef...@linux.vnet.ibm.com> > > Index:qemu/Makefile.target > =================================================================== > --- > Makefile.target | 7 +++++++ > configure | 20 ++++++++++++++++++++ > 2 files changed, 27 insertions(+) > > Index: qemu-git/Makefile.target > =================================================================== > --- qemu-git.orig/Makefile.target > +++ qemu-git/Makefile.target > @@ -303,6 +303,13 @@ obj-sparc-y += cs4231.o eccmemctl.o sbi. > > # GRLIB > obj-sparc-y += grlib_gptimer.o grlib_irqmp.o grlib_apbuart.o > + > +ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),i386 x86_64))
The ifeq above is not needed since the line below uses obj-i386. > + > +obj-i386-$(CONFIG_TPM) += tpm_tis.o > + > +endif > + > endif > > obj-arm-y = integratorcp.o versatilepb.o arm_pic.o arm_timer.o > Index: qemu-git/configure > =================================================================== > --- qemu-git.orig/configure > +++ qemu-git/configure > @@ -175,6 +175,7 @@ trace_backend="nop" > trace_file="trace" > spice="" > rbd="" > +tpm="no" > > # parse CC options first > for opt do > @@ -708,6 +709,8 @@ for opt do > ;; > --kerneldir=*) kerneldir="$optarg" > ;; > + --enable-tpm) tpm="yes" > + ;; > --with-pkgversion=*) pkgversion=" ($optarg)" > ;; > --disable-docs) docs="no" > @@ -921,6 +924,7 @@ echo " Default > echo " --disable-spice disable spice" > echo " --enable-spice enable spice" > echo " --enable-rbd enable building the rados block device > (rbd)" > +echo " --enable-tpm enables an emulated TPM" > echo "" > echo "NOTE: The object files are built at the place where configure is > launched" > exit 1 > @@ -2540,6 +2544,7 @@ echo "Trace output file $trace_file-<pid > echo "spice support $spice" > echo "rbd support $rbd" > echo "xfsctl support $xfs" > +echo "TPM support $tpm" > > if test $sdl_too_old = "yes"; then > echo "-> Your SDL version is too old - please upgrade to have SDL support" > @@ -3324,6 +3329,21 @@ if test "$gprof" = "yes" ; then > fi > fi > > +if test "$linux" = "yes" && test "$tpm" = "yes"; then > + has_tpm=0 > + if test "$target_softmmu" = "yes" ; then > + case "$TARGET_BASE_ARCH" in > + i386) > + has_tpm=1 This is not a real compile test, please try to build a dummy program that depends on TPM headers like for example preadv probe. Then it is not needed to check for Linux or i386 explicitly.
