linux-stable.git/include/linux/kvm_host.h, branch linux-2.6.29.y

KVM: Interrupt mask notifiers for ioapic

2009-04-27T17:37:03+00:00

upstream commit: 75858a84a6207f5e60196f6bbd18fde4250e5759

Allow clients to request notifications when the guest masks or unmasks a
particular irq line.  This complements irq ack notifications, as the guest
will not ack an irq line that is masked.

Currently implemented for the ioapic only.

Signed-off-by: Avi Kivity 
Signed-off-by: Chris Wright

KVM: Add kvm_arch_sync_events to sync with asynchronize events

2009-02-15T00:47:36+00:00

kvm_arch_sync_events is introduced to quiet down all other events may happen
contemporary with VM destroy process, like IRQ handler and work struct for
assigned device.

For kvm_arch_sync_events is called at the very beginning of kvm_destroy_vm(), so
the state of KVM here is legal and can provide a environment to quiet down other
events.

Signed-off-by: Sheng Yang 
Signed-off-by: Avi Kivity

KVM: change KVM to use IOMMU API

2009-01-03T13:11:07+00:00

Signed-off-by: Joerg Roedel

Deassign device in kvm_free_assgined_device

2009-01-03T13:10:08+00:00

In kvm_iommu_unmap_memslots(), assigned_dev_head is already empty.

Signed-off-by: Weidong Han 
Signed-off-by: Joerg Roedel

KVM: support device deassignment

2009-01-03T13:02:19+00:00

Support device deassignment, it can be used in device hotplug.

Signed-off-by: Weidong Han 
Signed-off-by: Joerg Roedel

KVM: use the new intel iommu APIs

2009-01-03T13:02:19+00:00

intel iommu APIs are updated, use the new APIs.

In addition, change kvm_iommu_map_guest() to just create the domain, let kvm_iommu_assign_device() assign device.

Signed-off-by: Weidong Han 
Signed-off-by: Joerg Roedel

KVM: fix handling of ACK from shared guest IRQ

2008-12-31T14:55:47+00:00

If an assigned device shares a guest irq with an emulated
device then we currently interpret an ack generated by the
emulated device as originating from the assigned device
leading to e.g. "Unbalanced enable for IRQ 4347" from the
enable_irq() in kvm_assigned_dev_ack_irq().

The fix is fairly simple - don't enable the physical device
irq unless it was previously disabled.

Of course, this can still lead to a situation where a
non-assigned device ACK can cause the physical device irq to
be reenabled before the device was serviced. However, being
level sensitive, the interrupt will merely be regenerated.

Signed-off-by: Mark McLoughlin 
Signed-off-by: Avi Kivity

KVM: Add fields for MSI device assignment

2008-12-31T14:55:01+00:00

Prepared for kvm_arch_assigned_device_msi_dispatch().

Signed-off-by: Sheng Yang 
Signed-off-by: Avi Kivity

KVM: Replace irq_requested with more generic irq_requested_type

2008-12-31T14:55:01+00:00

Separate guest irq type and host irq type, for we can support guest using INTx
with host using MSI (but not opposite combination).

Signed-off-by: Sheng Yang 
Signed-off-by: Avi Kivity

KVM: IRQ ACK notifier should be used with in-kernel irqchip

2008-12-31T14:51:47+00:00

Also remove unnecessary parameter of unregister irq ack notifier.

Signed-off-by: Sheng Yang 
Signed-off-by: Avi Kivity