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authorAnthony Liguori <aliguori@us.ibm.com>2012-01-23 11:00:26 -0600
committerAnthony Liguori <aliguori@us.ibm.com>2012-01-23 11:00:26 -0600
commit5b4448d27d7c6ff6e18a1edc8245cb1db783e37c (patch)
treea3b896984ff6ae566892eb198e5b34b197288194 /hw/msi.c
parentc4ccbeaca521bdbf5cb8db37dc67c47e1add0586 (diff)
parent6a48ffaaa732b2142c1b5030178f2d4a0fa499fe (diff)
downloadfocaccia-qemu-5b4448d27d7c6ff6e18a1edc8245cb1db783e37c.tar.gz
focaccia-qemu-5b4448d27d7c6ff6e18a1edc8245cb1db783e37c.zip
Merge remote-tracking branch 'qemu-kvm/uq/master' into staging
* qemu-kvm/uq/master:
  kvm: Activate in-kernel irqchip support
  kvm: x86: Add user space part for in-kernel IOAPIC
  kvm: x86: Add user space part for in-kernel i8259
  kvm: x86: Add user space part for in-kernel APIC
  kvm: x86: Establish IRQ0 override control
  kvm: Introduce core services for in-kernel irqchip support
  memory: Introduce memory_region_init_reservation
  ioapic: Factor out base class for KVM reuse
  ioapic: Drop post-load irr initialization
  i8259: Factor out base class for KVM reuse
  i8259: Completely privatize PicState
  apic: Open-code timer save/restore
  apic: Factor out base class for KVM reuse
  apic: Introduce apic_report_irq_delivered
  apic: Inject external NMI events via LINT1
  apic: Stop timer on reset
  kvm: Move kvmclock into hw/kvm folder
  msi: Generalize msix_supported to msi_supported
  hyper-v: initialize Hyper-V CPUID leaves.
  hyper-v: introduce Hyper-V support infrastructure.

Conflicts:
	Makefile.target

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/msi.c')
-rw-r--r--hw/msi.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/hw/msi.c b/hw/msi.c
index f214fcf579..5d6ceb6df0 100644
--- a/hw/msi.c
+++ b/hw/msi.c
@@ -36,6 +36,9 @@
 
 #define PCI_MSI_VECTORS_MAX     32
 
+/* Flag for interrupt controller to declare MSI/MSI-X support */
+bool msi_supported;
+
 /* If we get rid of cap allocator, we won't need this. */
 static inline uint8_t msi_cap_sizeof(uint16_t flags)
 {
@@ -116,6 +119,11 @@ int msi_init(struct PCIDevice *dev, uint8_t offset,
     uint16_t flags;
     uint8_t cap_size;
     int config_offset;
+
+    if (!msi_supported) {
+        return -ENOTSUP;
+    }
+
     MSI_DEV_PRINTF(dev,
                    "init offset: 0x%"PRIx8" vector: %"PRId8
                    " 64bit %d mask %d\n",