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# Date Author Comment
a1b87fe0 02/14/2011 04:39 pm Jan Kiszka

kvm: Provide sigbus services arch-independently

Provide arch-independent kvm_on_sigbus* stubs to remove the #ifdef'ery
from cpus.c. This patch also fixes --disable-kvm build by providing the
missing kvm_on_sigbus_vcpu kvm-stub.

Signed-off-by: Jan Kiszka <>...
94a8d39a 01/23/2011 06:27 am Jan Kiszka

kvm: Consolidate must-have capability checks

Instead of splattering the code with #ifdefs and runtime checks for
capabilities we cannot work without anyway, provide central test
infrastructure for verifying their availability both at build and
runtime.

Signed-off-by: Jan Kiszka <>...
cad1e282 01/23/2011 06:27 am Jan Kiszka

kvm: Drop smp_cpus argument from init functions

No longer used.

Signed-off-by: Jan Kiszka <>
Signed-off-by: Marcelo Tosatti <>
6c33286a 12/26/2010 01:29 am Alexander Graf

s390: compile fixes

The s390 target doesn't compile out of the box anymore. This patch fixes all
the obvious glitches that got introduced in the last few weeks.

Signed-off-by: Alexander Graf <>
Signed-off-by: Aurelien Jarno <>
d5900813 05/18/2010 10:23 pm Alexander Graf

target-s390: enable SIGP Initial Reset

For SMP to work with KVM, we need to properly emulate the SIGP Initial Reset
Command. Recent (2.6.32) kernels issue that before the SIGP Reset command that
actually wakes up the vcpu.

This patch makes -smp work on S390x....
4513d923 05/11/2010 08:03 pm Gleb Natapov

Do not stop VM if emulation failed in userspace.

Continue vcpu execution in case emulation failure happened while vcpu
was in userspace. In this case #UD will be injected into the guest
allowing guest OS to kill offending process and continue.

Signed-off-by: Gleb Natapov <>...
0af691d7 05/11/2010 08:02 pm Marcelo Tosatti

kvm: enable smp > 1

Process INIT/SIPI requests and enable -smp > 1.

Signed-off-by: Marcelo Tosatti <>
Signed-off-by: Avi Kivity <>
ea375f9a 03/04/2010 05:29 am Jan Kiszka

KVM: Rework VCPU state writeback API

This grand cleanup drops all reset and vmsave/load related
synchronization points in favor of four(!) generic hooks:

- cpu_synchronize_all_states in qemu_savevm_state_complete
(initial sync from kernel before vmsave)...
ee0dc6d3 02/14/2010 09:23 am Blue Swirl

Fix incorrect exception_index use

env->exception_index should be cleared with -1, not 0.

See also 821b19fe923ac49a24cdb4af902584fdd019cee6.

Spotted by Igor Kovalenko.

Signed-off-by: Blue Swirl <>
d7963c43 12/18/2009 05:32 pm Alexander Graf

target-s390: Fail on unknown instructions

We were being a bit too nice and didn't give the guest an invalid instruction
interrupt.

While that works, it's not exactly the fastest thing to do, since now the
guest doesn't know that we're not really implementing that instruction, so it...
0e60a699 12/05/2009 06:36 pm Alexander Graf

Add KVM support for S390x

S390x was one of the first platforms that received support for KVM back in the
day. Unfortunately until now there hasn't been a qemu implementation that would
enable users to actually run guests.

So let's include support for KVM S390x in qemu!...