linux-toradex.git/include/uapi/linux/kvm.h, branch v3.15-rc8

KVM: s390: irq routing for adapter interrupts.

2014-03-21T12:43:00+00:00

Introduce a new interrupt class for s390 adapter interrupts and enable
irqfds for s390.

This is depending on a new s390 specific vm capability, KVM_CAP_S390_IRQCHIP,
that needs to be enabled by userspace.

Acked-by: Christian Borntraeger 
Signed-off-by: Cornelia Huck

KVM: Add per-vm capability enablement.

2014-03-21T12:42:39+00:00

Allow KVM_ENABLE_CAP to act on a vm as well as on a vcpu. This makes more
sense when the caller wants to enable a vm-related capability.

s390 will be the first user; wire it up.

Reviewed-by: Thomas Huth 
Reviewed-by: Christian Borntraeger 
Signed-off-by: Cornelia Huck

kvm: x86: ignore ioapic polarity

2014-03-13T10:58:21+00:00

Both QEMU and KVM have already accumulated a significant number of
optimizations based on the hard-coded assumption that ioapic polarity
will always use the ActiveHigh convention, where the logical and
physical states of level-triggered irq lines always match (i.e.,
active(asserted) == high == 1, inactive == low == 0). QEMU guests
are expected to follow directions given via ACPI and configure the
ioapic with polarity 0 (ActiveHigh). However, even when misbehaving
guests (e.g. OS X <= 10.9) set the ioapic polarity to 1 (ActiveLow),
QEMU will still use the ActiveHigh signaling convention when
interfacing with KVM.

This patch modifies KVM to completely ignore ioapic polarity as set by
the guest OS, enabling misbehaving guests to work alongside those which
comply with the ActiveHigh polarity specified by QEMU's ACPI tables.

Signed-off-by: Michael S. Tsirkin 
Signed-off-by: Gabriel L. Somlo 
[Move documentation to KVM_IRQ_LINE, add ia64. - Paolo]
Signed-off-by: Paolo Bonzini

KVM: async_pf: Async page fault support on s390

2014-01-30T12:11:02+00:00

This patch enables async page faults for s390 kvm guests.
It provides the userspace API to enable and disable_wait this feature.
The disable_wait will enforce that the feature is off by waiting on it.
Also it includes the diagnose code, called by the guest to enable async page faults.

The async page faults will use an already existing guest interface for this
purpose, as described in "CP Programming Services (SC24-6084)".

Signed-off-by: Dominik Dingel 
Signed-off-by: Christian Borntraeger

KVM: s390: add floating irq controller

2014-01-30T09:25:20+00:00

This patch adds a floating irq controller as a kvm_device.
It will be necessary for migration of floating interrupts as well
as for hardening the reset code by allowing user space to explicitly
remove all pending floating interrupts.

Signed-off-by: Jens Freimann 
Reviewed-by: Cornelia Huck 
Signed-off-by: Christian Borntraeger

KVM: s390: add and extend interrupt information data structs

2014-01-29T21:00:41+00:00

With the currently available struct kvm_s390_interrupt it is not possible to
inject every kind of interrupt as defined in the z/Architecture. Add
additional interruption parameters to the structures and move it to kvm.h

Signed-off-by: Jens Freimann 
Reviewed-by: Cornelia Huck 
Signed-off-by: Christian Borntraeger

add support for Hyper-V reference time counter

2014-01-17T09:22:08+00:00

Signed-off: Peter Lieven 
Signed-off: Gleb Natapov
Signed-off: Vadim Rozenfeld 

After some consideration I decided to submit only Hyper-V reference
counters support this time. I will submit iTSC support as a separate
patch as soon as it is ready.

v1 -> v2
1. mark TSC page dirty as suggested by
    Eric Northup  and Gleb
2. disable local irq when calling get_kernel_ns,
    as it was done by Peter Lieven 
3. move check for TSC page enable from second patch
    to this one.

v3 -> v4
    Get rid of ref counter offset.

v4 -> v5
    replace __copy_to_user with kvm_write_guest
    when updateing iTSC page.

Signed-off-by: Paolo Bonzini

KVM: arm-vgic: Support KVM_CREATE_DEVICE for VGIC

2013-12-21T18:01:16+00:00

Support creating the ARM VGIC device through the KVM_CREATE_DEVICE
ioctl, which can then later be leveraged to use the
KVM_{GET/SET}_DEVICE_ATTR, which is useful both for setting addresses in
a more generic API than the ARM-specific one and is useful for
save/restore of VGIC state.

Adds KVM_CAP_DEVICE_CTRL to ARM capabilities.

Note that we change the check for creating a VGIC from bailing out if
any VCPUs were created, to bailing out if any VCPUs were ever run.  This
is an important distinction that shouldn't break anything, but allows
creating the VGIC after the VCPUs have been created.

Acked-by: Marc Zyngier 
Signed-off-by: Christoffer Dall

Merge branch 'kvm-ppc-queue' of git://github.com/agraf/linux-2.6 into queue

2013-11-04T08:20:57+00:00

Conflicts:
	arch/powerpc/include/asm/processor.h

kvm: Add VFIO device

2013-10-30T18:02:03+00:00

So far we've succeeded at making KVM and VFIO mostly unaware of each
other, but areas are cropping up where a connection beyond eventfds
and irqfds needs to be made.  This patch introduces a KVM-VFIO device
that is meant to be a gateway for such interaction.  The user creates
the device and can add and remove VFIO groups to it via file
descriptors.  When a group is added, KVM verifies the group is valid
and gets a reference to it via the VFIO external user interface.

Signed-off-by: Alex Williamson 
Signed-off-by: Paolo Bonzini