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.
As usual, if you have an issue please try with -no-kvm-irqchip and report.
Changes from kvm-43:
- fix smp guest boot
- fix IDE emulation bug with newer guest kernels (S.Çağlar Onur)
- support VMware server as guest (Ryan Harper)
- fix smp race in shadow code (Izik Eidus)
- allow guest page faults to bypass kvm on Intel (performance boost)
Notes:
If you use the modules bundled with kvm-44, you can use any version
of Linux from 2.6.9 upwards.
If you use the modules bundled with Linux 2.6.20, you need to use
kvm-12.
If you use the modules bundled with Linux 2.6.21, you need to use
kvm-17.
Modules from Linux 2.6.22 and up will work with any kvm version from
kvm-22. Some features may only be available in newer releases.
For best performance, use Linux 2.6.23-rc2 or later as the host.
http://kvm.qumranet.com
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