Arch Linux

javajunky

Member

Registered: 2006-11-13

Posts: 39

Kernel KVM and Qemu

Hi, I'm sure this is a daft question, but prior to the .20+.21 kernels, I was happily using the apt-packages qemu 0.9.0-1 and kqemu 1.3.0pre11-6. Now with a .21 kernel, I can load the kvm module in (which doesn't support the major=0 module options), but qemu fails to use it.  What should I be doing to use qemu with the new kvm modules? sorry, I've read the wiki, but it seems out of date for these newer kernels ?

axelgenus

Member

From: Italy

Registered: 2007-04-15

Posts: 100

Website

Re: Kernel KVM and Qemu

KVM uses a modified version of Qemu... you should make and install the package in AUR named "kvm" and use that.

javajunky

Member

Registered: 2006-11-13

Posts: 39

Re: Kernel KVM and Qemu

Thanks very much!!

Hi, I've built kvm-17 (to which i had to manually add arch=x86_64) , and modprobed in kvm-intel,  however the qemu-system_x86-64 binary seems to run images very slowly, and in /var/log/messsages I see a large number of ' rtc: lost some interrupts at 1024Hz.' statements.

Reading around the KVm/Qemu FAQs I see a comment about turning on 'CONFIG_HPET_EMULATE_RTC=y', I'm guessnig this is a kernel configuration propery??.  is anyone else using KVM on 64?