Marcelo Tosatti 84261923d3 KVM: protect concurrent make_all_cpus_request ... make_all_cpus_request contains a race condition which can trigger false request completed status, as follows: CPU0 CPU1 if (test_and_set_bit(req,&vcpu->requests)) .... if (test_and_set_bit(req,&vcpu->requests)) .. return proceed to smp_call_function_many(wait=1) Use a spinlock to serialize concurrent CPUs. Cc: stable@kernel.org Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>		2009-06-28 14:10:29 +03:00
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coalesced_mmio.c	KVM: Add coalesced MMIO support (common part)	2008-07-20 12:42:31 +03:00
coalesced_mmio.h	KVM: Add coalesced MMIO support (common part)	2008-07-20 12:42:31 +03:00
ioapic.c	KVM: APIC: get rid of deliver_bitmask	2009-06-10 11:48:27 +03:00
ioapic.h	KVM: APIC: get rid of deliver_bitmask	2009-06-10 11:48:27 +03:00
iodev.h	KVM: kvm_io_device: extend in_range() to manage len and write attribute	2008-07-20 12:42:30 +03:00
iommu.c	KVM: Enable snooping control for supported hardware	2009-06-10 11:48:50 +03:00
irq_comm.c	KVM: Trivial format fix in setup_routing_entry()	2009-06-10 11:48:50 +03:00
kvm_main.c	KVM: protect concurrent make_all_cpus_request	2009-06-28 14:10:29 +03:00
kvm_trace.c	KVM: Prevent trace call into unloaded module text	2008-12-31 16:55:04 +02:00