Avi Kivity wrote: > An important fix to guest smp (it boots now!), and a performance > improvement on Intel hardware. I get about 5% boost on a kernel build. > > There's a new module parameter to kvm-intel.ko that can disable this > mechanism, bypass_guest_pf. Load the module with bypass_guest_pf=0 to > disable the optimization. It shouldn't be necessary to do that on > current processors; it's mostly to protect kvm against changes in > hardware since the patch uses reserved bits.
make[1]: Entering directory `/usr/src/kernels/2.6.18-8.1.10.el5-x86_64' LD /home/robot/rpm/BUILD/kvm-kmod-44/_kmod_build_/kernel/built-in.o CC [M] /home/robot/rpm/BUILD/kvm-kmod-44/_kmod_build_/kernel/svm.o CC [M] /home/robot/rpm/BUILD/kvm-kmod-44/_kmod_build_/kernel/vmx.o CC [M] /home/robot/rpm/BUILD/kvm-kmod-44/_kmod_build_/kernel/vmx-debug.o CC [M] /home/robot/rpm/BUILD/kvm-kmod-44/_kmod_build_/kernel/kvm_main.o CC [M] /home/robot/rpm/BUILD/kvm-kmod-44/_kmod_build_/kernel/mmu.o /home/robot/rpm/BUILD/kvm-kmod-44/_kmod_build_/kernel/mmu.c:1152: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'last_updated_pte_accessed' /home/robot/rpm/BUILD/kvm-kmod-44/_kmod_build_/kernel/mmu.c: In function 'kvm_mmu_pte_write': /home/robot/rpm/BUILD/kvm-kmod-44/_kmod_build_/kernel/mmu.c:1180: error: implicit declaration of function 'last_updated_pte_accessed' make[2]: *** [/home/robot/rpm/BUILD/kvm-kmod-44/_kmod_build_/kernel/mmu.o] Error 1 make[1]: *** [_module_/home/robot/rpm/BUILD/kvm-kmod-44/_kmod_build_/kernel] Error 2 make[1]: Leaving directory `/usr/src/kernels/2.6.18-8.1.10.el5-x86_64' make: *** [all] Error 2 -- Levente "Si vis pacem para bellum!" ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
