Per the PCI spec, all vectors should be masked at handoff.
Signed-off-by: Alex Williamson <[email protected]>
---
hw/device-assignment.c | 20 +++++++++++++++++++-
1 files changed, 19 insertions(+), 1 deletions(-)
diff --git a/hw/device-assignment.c b/hw/device-assignment.c
index 25dff2c..a33e5b9 100644
--- a/hw/device-assignment.c
+++ b/hw/device-assignment.c
@@ -1459,6 +1459,22 @@ static const MemoryRegionOps msix_mmio_ops = {
},
};
+static void msix_reset(AssignedDevice *dev)
+{
+ MSIXTableEntry *entry;
+ int i;
+
+ if (!dev->msix_table) {
+ return;
+ }
+
+ memset(dev->msix_table, 0, 0x1000);
+
+ for (i = 0, entry = dev->msix_table; i < dev->msix_max; i++, entry++) {
+ entry->ctrl = cpu_to_le32(0x1); /* Masked */
+ }
+}
+
static int assigned_dev_register_msix_mmio(AssignedDevice *dev)
{
dev->msix_table = mmap(NULL, 0x1000, PROT_READ|PROT_WRITE,
@@ -1467,7 +1483,9 @@ static int assigned_dev_register_msix_mmio(AssignedDevice
*dev)
fprintf(stderr, "fail allocate msix_table! %s\n", strerror(errno));
return -EFAULT;
}
- memset(dev->msix_table, 0, 0x1000);
+
+ msix_reset(dev);
+
memory_region_init_io(&dev->mmio, &msix_mmio_ops, dev,
"assigned-dev-msix", MSIX_PAGE_SIZE);
return 0;
--
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