Dr. David Alan Gilbert fc3a1fd74f x86: Work around SMI migration breakages ... Migration from a 2.3.0 qemu results in a reboot on the receiving QEMU due to a disagreement about SM (System management) interrupts. 2.3.0 didn't have much SMI support, but it did set CPU_INTERRUPT_SMI and this gets into the migration stream, but on 2.3.0 it never got delivered. ~2.4.0 SMI interrupt support was added but was broken - so that when a 2.3.0 stream was received it cleared the CPU_INTERRUPT_SMI but never actually caused an interrupt. The SMI delivery was recently fixed by 68c6efe07a, but the effect now is that an incoming 2.3.0 stream takes the interrupt it had flagged but it's bios can't actually handle it(I think partly due to the original interrupt not being taken during boot?). The consequence is a triple(?) fault and a reboot. Tested from: 2.3.1 -M 2.3.0 2.7.0 -M 2.3.0 2.8.0 -M 2.3.0 2.8.0 -M 2.8.0 This corresponds to RH bugzilla entry 1420679. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20170223133441.16010-1-dgilbert@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2017-03-03 16:40:03 +01:00
..
apic_internal.h	apic: save apic_delivered flag	2017-01-27 18:07:30 +01:00
apic-msidef.h	q35: ioapic: add support for emulated IOAPIC IR	2016-07-21 20:43:49 +03:00
apic.h	apic: move target-dependent definitions to cpu.h	2016-05-19 16:42:28 +02:00
ich9.h	hw/isa/lpc_ich9: add broadcast SMI feature	2017-01-27 18:07:31 +01:00
intel_iommu.h	intel_iommu: add "caching-mode" option	2017-02-17 21:52:31 +02:00
ioapic_internal.h	x86: ioapic: add support for explicit EOI	2016-08-03 18:44:57 +02:00
ioapic.h	Clean up decorations and whitespace around header guards	2016-07-12 16:20:46 +02:00
pc.h	x86: Work around SMI migration breakages	2017-03-03 16:40:03 +01:00
topology.h	pc: Add x86_topo_ids_from_apicid()	2016-07-20 11:58:44 -03:00
x86-iommu.h	intel_iommu: support device iotlb descriptor	2017-01-10 05:56:58 +02:00