linux.git/virt, branch v2.6.29-rc2 Clone of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git kvm/iommu: fix compile warning 2009-01-03T15:37:53+00:00 Joerg Roedel joerg.roedel@amd.com 2009-01-03T15:37:53+00:00 7398ca79d227f7cd7f2ce23f08624e30081dcb4e This fixes a compile warning about a variable thats maybe used uninitialized in the function. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> 
This fixes a compile warning about a variable thats maybe used
uninitialized in the function.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
KVM: change KVM to use IOMMU API 2009-01-03T13:11:07+00:00 Joerg Roedel joerg.roedel@amd.com 2008-12-03T13:43:34+00:00 19de40a8472fa64693eab844911eec277d489f6c Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> 
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
KVM: rename vtd.c to iommu.c 2009-01-03T13:10:09+00:00 Joerg Roedel joerg.roedel@amd.com 2008-11-26T14:51:19+00:00 c4fa3864281c7d88b7262cbc6cbd5c90bb59860e Impact: file renamed The code in the vtd.c file can be reused for other IOMMUs as well. So rename it to make it clear that it handle more than VT-d. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> 
Impact: file renamed

The code in the vtd.c file can be reused for other IOMMUs as well. So
rename it to make it clear that it handle more than VT-d.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Deassign device in kvm_free_assgined_device 2009-01-03T13:10:08+00:00 Weidong Han weidong.han@intel.com 2008-12-08T15:29:53+00:00 b653574a7d14b663cc812cb20be6a114939ba186 In kvm_iommu_unmap_memslots(), assigned_dev_head is already empty. Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> 
In kvm_iommu_unmap_memslots(), assigned_dev_head is already empty.

Signed-off-by: Weidong Han <weidong.han@intel.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
KVM: support device deassignment 2009-01-03T13:02:19+00:00 Weidong Han weidong.han@intel.com 2008-12-02T13:24:23+00:00 0a920356748df4fb06e86c21c23d2ed6d31d37ad Support device deassignment, it can be used in device hotplug. Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> 
Support device deassignment, it can be used in device hotplug.

Signed-off-by: Weidong Han <weidong.han@intel.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
KVM: use the new intel iommu APIs 2009-01-03T13:02:19+00:00 Weidong Han weidong.han@intel.com 2008-12-02T13:03:39+00:00 260782bcfdaaa7850f29d6bb2ec6603019168c57 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 <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> 
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 <weidong.han@intel.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
KVM: fix handling of ACK from shared guest IRQ 2008-12-31T14:55:47+00:00 Mark McLoughlin markmc@redhat.com 2008-12-02T12:16:33+00:00 defaf1587c5d7dff828f6f11c8941e5bcef00f50 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 <markmc@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com> 
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 <markmc@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
KVM: Consolidate userspace memory capability reporting into common code 2008-12-31T14:55:46+00:00 Avi Kivity avi@redhat.com 2008-12-08T16:29:29+00:00 ca9edaee1aea34ebd9adb48910aba0b3d64b1b22 Signed-off-by: Avi Kivity <avi@redhat.com> 
Signed-off-by: Avi Kivity <avi@redhat.com>
KVM: Advertise the bug in memory region destruction as fixed 2008-12-31T14:55:46+00:00 Avi Kivity avi@redhat.com 2008-12-08T16:25:27+00:00 1a811b6167089bcdb84284f2dc9fd0b4d0f1899d Userspace might need to act differently. Signed-off-by: Avi Kivity <avi@redhat.com> 
Userspace might need to act differently.

Signed-off-by: Avi Kivity <avi@redhat.com>
KVM: use cpumask_var_t for cpus_hardware_enabled 2008-12-31T14:55:45+00:00 Rusty Russell rusty@rustcorp.com.au 2008-12-07T10:55:45+00:00 7f59f492da722eb3551bbe1f8f4450a21896f05d This changes cpus_hardware_enabled from a cpumask_t to a cpumask_var_t: equivalent for CONFIG_CPUMASKS_OFFSTACK=n, otherwise dynamically allocated. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Avi Kivity <avi@redhat.com> 
This changes cpus_hardware_enabled from a cpumask_t to a cpumask_var_t:
equivalent for CONFIG_CPUMASKS_OFFSTACK=n, otherwise dynamically allocated.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@redhat.com>