On Tue, 2009-01-06 at 09:29 +0800, Xu, Jiajun wrote: > Hi, > We found against latest kvm commit, > 2c775aece4cb3a05aa5dc8b9966b39a959252dcd, kvm failed to compile with > CONFIG_DMAR=y. > > The error is like following: > > [r...@kvm-build kernel]# make > rm -f include/asm include-compat/asm > ln -sf asm-x86 include/asm > ln -sf asm-x86 include-compat/asm > make -j20 -C /lib/modules/2.6.28-rc6/build M=`pwd` \ > LINUXINCLUDE="-I`pwd`/include -Iinclude \ > \ > -Iarch/x86/include -I`pwd`/include-compat \ > -include include/linux/autoconf.h \ > -include `pwd`/x86/external-module-compat.h " > make[1]: Entering directory > `/mnt/sdb1/kernel/src/redhat/BUILD/kernel-2.6.28rc6' > make[3]: *** No rule to make target > `/workspace/ia32e/nightly/kvm-master-2.6.28-rc6-20090105091035882/kvm-userspace/kernel/x86/vtd.o', > needed by > `/workspace/ia32e/nightly/kvm-master-2.6.28-rc6-20090105091035882/kvm-userspace/kernel/x86/kvm.o'. > Stop. > make[2]: *** > [/workspace/ia32e/nightly/kvm-master-2.6.28-rc6-20090105091035882/kvm-userspace/kernel/x86] > Error 2 > make[1]: *** > [_module_/workspace/ia32e/nightly/kvm-master-2.6.28-rc6-20090105091035882/kvm-userspace/kernel] > Error 2 > make[1]: Leaving directory > `/mnt/sdb1/kernel/src/redhat/BUILD/kernel-2.6.28rc6' > make: *** [all] Error 2 > > My host kernel is 2.6.28-rc6. After setting CONFIG_DMAR=n, kvm compile > is OK. So does anyone know how to enable VT-d in latest kvm?
This is because virt/kvm/vt-d.c was renamed to virt/kvm/iommu.c Try manually deleting the stale copy of vt-d.c and re-running make. Cheers, Mark. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
