From: Chen Fan <[email protected]>
Signed-off-by: Chen Fan <[email protected]>
---
hw/vfio/pci.c | 21 +++++++++++++++++----
1 file changed, 17 insertions(+), 4 deletions(-)
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 0516d94..5b23a86 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -2060,14 +2060,27 @@ static void vfio_pci_post_reset(VFIOPCIDevice *vdev)
vfio_intx_enable(vdev);
}
+static int vfio_pci_name_to_addr(const char *name, PCIHostDeviceAddress *addr)
+{
+ if (strlen(name) != 12 ||
+ sscanf(name, "%04x:%02x:%02x.%1x", &addr->domain,
+ &addr->bus, &addr->slot, &addr->function) != 4) {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static bool vfio_pci_host_match(PCIHostDeviceAddress *addr, const char *name)
{
- char tmp[13];
+ PCIHostDeviceAddress tmp;
- sprintf(tmp, "%04x:%02x:%02x.%1x", addr->domain,
- addr->bus, addr->slot, addr->function);
+ if (vfio_pci_name_to_addr(name, &tmp)) {
+ return false;
+ }
- return (strcmp(tmp, name) == 0);
+ return (tmp.domain == addr->domain && tmp.bus == addr->bus &&
+ tmp.slot == addr->slot && tmp.function == addr->function);
}
static int vfio_pci_hot_reset(VFIOPCIDevice *vdev, bool single)
--
1.9.3
