[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 2/4] pci init: fail qemu if devfn exceeding the max
From: |
Ken CC |
Subject: |
[Qemu-devel] [PATCH 2/4] pci init: fail qemu if devfn exceeding the max function number supported on bus |
Date: |
Tue, 24 Aug 2010 21:27:10 +0800 |
User-agent: |
StGit/0.15-97-g9680 |
Check if devfn < PCIBUS_MAX_DEVICES * PCI_FUNCTIONS_PER_DEVICE
Signed-off-by: Ken CC <address@hidden>
---
hw/pci.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/hw/pci.c b/hw/pci.c
index 9234fe3..fc4becd 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -747,6 +747,7 @@ static PCIDevice *do_pci_register_device(PCIDevice
*pci_dev, PCIBus *bus,
PCIConfigWriteFunc *config_write,
bool is_bridge)
{
+ assert(devfn / PCI_FUNCTIONS_PER_DEVICE < PCIBUS_MAX_DEVICES);
if (devfn < 0) {
for(devfn = bus->devfn_min ; devfn < ARRAY_SIZE(bus->devices);
devfn += PCI_FUNC_MAX) {