Re: [ANNOUNCE] kvm-44 release

Farkas Levente
2007-09-23T19:48:10Z

> 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