From: Farkas Levente <lfarkas-lWVWdrzSO4GHXe+LvDLADg@public.gmane.org>
To: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Cc: kvm-devel <kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Subject: Re: [ANNOUNCE] kvm-44 release
Date: Sun, 23 Sep 2007 21:48:10 +0200 [thread overview]
Message-ID: <46F6C2FA.7080303@bppiac.hu> (raw)
In-Reply-To: <46F6775E.3010508-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
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!"
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next prev parent reply other threads:[~2007-09-23 19:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-23 14:25 [ANNOUNCE] kvm-44 release Avi Kivity
[not found] ` <46F6775E.3010508-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-09-23 19:48 ` Farkas Levente [this message]
[not found] ` <46F6C2FA.7080303-lWVWdrzSO4GHXe+LvDLADg@public.gmane.org>
2007-09-24 7:43 ` Avi Kivity
[not found] ` <46F76AA1.1090200-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-09-24 8:05 ` Farkas Levente
[not found] ` <46F76FBA.1040907-lWVWdrzSO4GHXe+LvDLADg@public.gmane.org>
2007-09-24 8:18 ` Avi Kivity
[not found] ` <46F772D0.7050102-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-09-24 8:37 ` Farkas Levente
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