diff mbox

kvm: Fix wrong counting of MSI-X table size

Message ID 1239157856-15295-1-git-send-email-sheng@linux.intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Sheng Yang April 8, 2009, 2:30 a.m. UTC 
The PCI spec said...

System software reads this field to determine the MSI-X Table Size *N*,
which is encoded as *N-1*. For example, a returned value of “00000000011”
indicates a table size of 4.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
---
 qemu/hw/device-assignment.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

Comments

Avi Kivity April 9, 2009, 3:35 p.m. UTC | #1 
Sheng Yang wrote:
> The PCI spec said...
>
> System software reads this field to determine the MSI-X Table Size *N*,
> which is encoded as *N-1*. For example, a returned value of “00000000011”
> indicates a table size of 4.
>
>   

Applied, thanks.
diff mbox

Patch

diff --git a/qemu/hw/device-assignment.c b/qemu/hw/device-assignment.c
index 09e54ae..f33ce3c 100644
--- a/qemu/hw/device-assignment.c
+++ b/qemu/hw/device-assignment.c
@@ -818,6 +818,7 @@  static int assigned_dev_update_msix_mmio(PCIDevice *pci_dev)
 
     entries_max_nr = pci_dev->config[pos + 2];
     entries_max_nr &= PCI_MSIX_TABSIZE;
+    entries_max_nr += 1;
 
     /* Get the usable entry number for allocating */
     for (i = 0; i < entries_max_nr; i++) {