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authorDavid Gibson <david@gibson.dropbear.id.au>2017-03-14 11:54:17 +1100
committerDavid Gibson <david@gibson.dropbear.id.au>2017-03-14 11:54:17 +1100
commit82516263cead40ac240ae5fb2a6f5fc0fda9614c (patch)
treef55ae1437125d4e0cf8c342983970f381589a1a5 /include
parent38a61d34875335717f22e3a0eb1e0d5df4f62def (diff)
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pseries: Don't expose PCIe extended config space on older machine types
bb9986452 "spapr_pci: Advertise access to PCIe extended config space" allowed guests to access the extended config space of PCI Express devices via the PAPR interfaces, even though the paravirtualized bus mostly acts like plain PCI. However, that patch enabled access unconditionally, including for existing machine types, which is an unwise change in behaviour. This patch limits the change to pseries-2.9 (and later) machine types. Suggested-by: Andrea Bolognani <abologna@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'include')
-rw-r--r--include/hw/pci-host/spapr.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/hw/pci-host/spapr.h b/include/hw/pci-host/spapr.h
index dfa7614..1c2e970 100644
--- a/include/hw/pci-host/spapr.h
+++ b/include/hw/pci-host/spapr.h
@@ -80,6 +80,8 @@ struct sPAPRPHBState {
uint32_t numa_node;
+ bool pcie_ecs; /* Allow access to PCIe extended config space? */
+
/* Fields for migration compatibility hacks */
bool pre_2_8_migration;
uint32_t mig_liobn;