Alexander Graf wrote: > On Sep 16, 2008, at 9:22 AM, Zhang, Xiantao wrote: > >> Alexander Graf wrote: >>> KVM as is assumes that the kernel obj dir and the kernel source dir >>> are at the same location. This is true for most self-built vanilla >>> kernels, but some distributions split these up (e.g. SUSE). >>> To keep compatible and have users have a good experience on building >>> KVM on any distribution, this patch attempts to rebuild the logic >>> from the kernel Makefile as closely as possible. With it I >>> successfully built KVM on a current SUSE system. >>> >>> Signed-off-by: Alexander Graf <agraf@xxxxxxx> >>> >>> Please check and see if it breaks the build process for anyone else. >>> Building with IA64 on SUSE-kernels is still broken due to similar >>> but separate problems. >> >> Hi, Graf >> what problems did you meet when building kvm/ia64 ? >> Xiantao > > > This is the list of stuff I had to modify to get kvm-74 to run. I > haven't tried anything more recent yet. > > 1) -mno-sdata does not work. Qemu CFLAGS need to be -msdata Which version of GCC are you using ? > 2) In qemu/ia64.ld SEARCH_DIR is invalid for SUSE. It shouldn't search > in /usr/ia64-linux but in /usr/ia64-suse-linux. You can make a patch to fix it. > 3) TARGET_PAGE_BITS is wrong Currently, we just set TARGET_PAGE_BITS to 16 by hardcoding in Qemu. In the future, we should add the logic to make it equal to kernel's PAGE_SHIFT. > 4) kernel/ia64/Makefile.pre assumes to find .S files in $KERNELDIR. > They are in $SOURCEDIR. There is no issue here, I think. You have to set corrent $KERNELDIR through ./configure --kerneldir=xxxx once target machine and build machine is not same. > 5) kernel/ia64/Makefile.pre suffers from the same problem my original > fix for x86 addressed. Ditto. > 6) The IA64 kernel build system is broken. The file asm-ia64/nr-irqs.h > gets generated during the kernel build, but is not exported as obj, so > it won't be in the split obj directory. Since the source-dir is clean > though, the file simply does not exist on SUSE rpms. You mean the source-dir is clean ? So the generated header files including (linux/autoconf.h, asm-offsets.h...)should be removed wholely? I don't think they can be built with a clean source for most modules. > I will attach the patch I use in our local buildsystem to make KVM > compile on IA64. Please do not take this as fixes, most of them are > simple workarounds and should rather be fixed properly. We were just > hitting deadlines internally. > > Alex -- To unsubscribe from this list: send the line "unsubscribe kvm-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
