Alex Williamson 21a1416a1c KVM: lock slots_lock around device assignment ...

As pointed out by Jason Baron, when assigning a device to a guest
we first set the iommu domain pointer, which enables mapping
and unmapping of memory slots to the iommu.  This leaves a window
where this path is enabled, but we haven't synchronized the iommu
mappings to the existing memory slots.  Thus a slot being removed
at that point could send us down unexpected code paths removing
non-existent pinnings and iommu mappings.  Take the slots_lock
around creating the iommu domain and initial mappings as well as
around iommu teardown to avoid this race.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

2012-04-19 00:04:18 -03:00

..

assigned-dev.c

KVM: Convert intx_mask_lock to spin lock

2012-03-20 12:41:24 +02:00

async_pf.c

KVM: fix the race while wakeup all pv guest

2011-01-12 11:29:03 +02:00

async_pf.h

KVM: Halt vcpu if page it tries to access is swapped out

2011-01-12 11:21:39 +02:00

coalesced_mmio.c

KVM: make checks stricter in coalesced_mmio_in_range()

2011-12-27 11:17:07 +02:00

coalesced_mmio.h

KVM: Make coalesced mmio use a device per zone

2011-09-25 19:17:57 +03:00

eventfd.c

KVM: Intelligent device lookup on I/O bus

2011-09-25 19:17:59 +03:00

ioapic.c

KVM: drop bsp_vcpu pointer from kvm struct

2011-12-27 11:22:32 +02:00

ioapic.h

KVM: convert ioapic lock to spinlock

2010-05-13 01:23:55 -03:00

iodev.h

KVM: remove in_range from io devices

2009-09-10 08:33:05 +03:00

iommu.c

KVM: lock slots_lock around device assignment

2012-04-19 00:04:18 -03:00

irq_comm.c

KVM: fast-path msi injection with irqfd

2011-01-12 11:29:38 +02:00

Kconfig

KVM: Halt vcpu if page it tries to access is swapped out

2011-01-12 11:21:39 +02:00

kvm_main.c

KVM: unmap pages from the iommu when slots are removed

2012-04-11 22:55:25 -03:00