linux.git/Documentation/virtual/kvm/devices, branch v3.19

KVM: fix vm device attribute documentation

2014-11-07T10:11:11+00:00

Documentation uses incorrect attribute names for some vm device
attributes: fix this.

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

arm/arm64: KVM: vgic: make number of irqs a configurable attribute

2014-09-19T01:48:58+00:00

In order to make the number of interrupts configurable, use the new
fancy device management API to add KVM_DEV_ARM_VGIC_GRP_NR_IRQS as
a VGIC configurable attribute.

Userspace can now specify the exact size of the GIC (by increments
of 32 interrupts).

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

KVM: s390: Exploiting generic userspace interface for cmma

2014-04-22T11:24:32+00:00

To enable CMMA and to reset its state we use the vm kvm_device ioctls,
encapsulating attributes within the KVM_S390_VM_MEM_CTRL group.

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

KVM: s390: Per-vm kvm device controls

2014-04-22T11:24:12+00:00

We sometimes need to get/set attributes specific to a virtual machine
and so need something else than ONE_REG.

Let's copy the KVM_DEVICE approach, and define the respective ioctls
for the vm file descriptor.

Signed-off-by: Dominik Dingel 
Reviewed-by: Cornelia Huck 
Acked-by: Alexander Graf 
Signed-off-by: Christian Borntraeger

KVM: s390: adapter interrupt sources

2014-03-21T12:42:49+00:00

Add a new interface to register/deregister sources of adapter interrupts
identified by an unique id via the flic. Adapters may also be maskable
and carry a list of pinned pages.

These adapters will be used by irq routing later.

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

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: arm-vgic: Add vgic reg access from dev attr

2013-12-21T18:01:39+00:00

Add infrastructure to handle distributor and cpu interface register
accesses through the KVM_{GET/SET}_DEVICE_ATTR interface by adding the
KVM_DEV_ARM_VGIC_GRP_DIST_REGS and KVM_DEV_ARM_VGIC_GRP_CPU_REGS groups
and defining the semantics of the attr field to be the MMIO offset as
specified in the GICv2 specs.

Missing register accesses or other changes in individual register access
functions to support save/restore of the VGIC state is added in
subsequent patches.

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

KVM: arm-vgic: Set base addr through device API

2013-12-21T18:01:22+00:00

Support setting the distributor and cpu interface base addresses in the
VM physical address space through the KVM_{SET,GET}_DEVICE_ATTR API
in addition to the ARM specific API.

This has the added benefit of being able to share more code in user
space and do things in a uniform manner.

Also deprecate the older API at the same time, but backwards
compatibility will be maintained.

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

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