Re: with kerenl 2.6.27, CONFIG_KVM_GUEST does not work

2008-10-14 Thread Xavier Gnata
Held Bernhard wrote: Does the attached work for you? Avi, do you have thoughts on how to proceed with pvmmu? Using hypercalls instead of faults can still be beneficial (for the first write before page goes out of sync, or for non-leaf tables which currently don't go oos). But at the current

Re: with kerenl 2.6.27, CONFIG_KVM_GUEST does not work

2008-10-14 Thread Bernhard Held
Using this patch on a vanilla 2.6.27 kernel, I get this when I try to compile it: arch/x86/kvm/mmu.c: In function ‘kvm_pv_mmu_flush_tlb’: arch/x86/kvm/mmu.c:2241: error: ‘KVM_REQ_MMU_SYNC’ undeclared (first use in this function) arch/x86/kvm/mmu.c:2241: error: (Each undeclared identifier is

Re: with kerenl 2.6.27, CONFIG_KVM_GUEST does not work

2008-10-13 Thread Al Tobey
On Sat, Oct 11, 2008 at 11:04 AM, Marcelo Tosatti [EMAIL PROTECTED] wrote: On Fri, Oct 10, 2008 at 06:11:08PM +0200, xming wrote: Kernel 2.6.27 + kvm-76 on the host really gives some performance boost here. but: When running 2.6.27 compiled with CONFIG_KVM_GUEST=y in the guest, the guest

Re: with kerenl 2.6.27, CONFIG_KVM_GUEST does not work

2008-10-12 Thread Held Bernhard
Does the attached work for you? Avi, do you have thoughts on how to proceed with pvmmu? Using hypercalls instead of faults can still be beneficial (for the first write before page goes out of sync, or for non-leaf tables which currently don't go oos). But at the current state pvmmu should

Re: with kerenl 2.6.27, CONFIG_KVM_GUEST does not work

2008-10-11 Thread Marcelo Tosatti
On Fri, Oct 10, 2008 at 06:11:08PM +0200, xming wrote: Kernel 2.6.27 + kvm-76 on the host really gives some performance boost here. but: When running 2.6.27 compiled with CONFIG_KVM_GUEST=y in the guest, the guest won't start, lot's of segfaults (in the guest) especially udev

with kerenl 2.6.27, CONFIG_KVM_GUEST does not work

2008-10-10 Thread xming
Kernel 2.6.27 + kvm-76 on the host really gives some performance boost here. but: When running 2.6.27 compiled with CONFIG_KVM_GUEST=y in the guest, the guest won't start, lot's of segfaults (in the guest) especially udev initializations. unset CONFIG_KVM_GUEST=y, then the guest runs fine -- To