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This add special hyper-v cpu flags for windows guests.
This improve performance and avoid some bsod related to timer.
(I currently disable the hv_vapic flag because I can't get it working).
I have tested all theses flags with: win2003, win2008R2, winxp, linux debian 64bit, on intel and amd physicals processor
It doesn't break live migration, because new cpu flags are not see by guests until a vm reset.
Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
Need for win8 boot.
This flag was missing from rhel < 6.4 host kernel. It's ok now.
But it's also missing from kvm64 model. (It's exist in other cpu models, amd or intel).
So it's pretty safe to enable it.
If the host kernel is older, qemu filter the flag.
This also improve performance of winxp && win7 32 bits guests.
Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
This reduce context switch with multicore guests.
Even if the host cpu don't have x2apic, it's working because qemu have an virtual x2apic implementation for guest.
We need in-kernel irqchip support for this, which is enable for kvm guest since qemu 1.3.
(I don't enable it if nokvm param is set)
Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
This is experimental code, spice connections are not encryped and thus insecure.
We use ticket passwords for spice auth, and do direct spice connections to
the nodes instead of using a tunnel.
fix : Use of uninitialized value $bridgeid in numeric lt (<) at /usr/share/perl5/PVE/QemuServer.pm line 2774.
Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
