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-rw-r--r--hw/i386/intel_iommu.c3
-rw-r--r--hw/i386/pc_piix.c2
2 files changed, 4 insertions, 1 deletions
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index 0a4282adf3..7da70ff349 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -745,6 +745,9 @@ static inline bool vtd_is_interrupt_addr(hwaddr addr)
 
 /* Map dev to context-entry then do a paging-structures walk to do a iommu
  * translation.
+ *
+ * Called from RCU critical section.
+ *
  * @bus_num: The bus number
  * @devfn: The devfn, which is the  combined of device and function number
  * @is_write: The access is a write operation
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 38b42b05f8..de75cf0e87 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -208,7 +208,7 @@ static void pc_init1(MachineState *machine,
     } else {
         pci_bus = NULL;
         i440fx_state = NULL;
-        isa_bus = isa_bus_new(NULL, system_io);
+        isa_bus = isa_bus_new(NULL, get_system_memory(), system_io);
         no_hpet = 1;
     }
     isa_bus_irqs(isa_bus, gsi);