When there are multiple vfio devices, only the cfg_size of first
vfio device can be correctly set to 4096. The cfg_size of other
vfio devices are incorrectly set to 256.
This will cause an error when live migrating a virtual machine with
vfio devices to multiple destinations. Fix this by setting correct
pcie_cap field before cfg_size initialize.
Signed-off-by: Hao Zheng <yi...@linux.alibaba.com>
Signed-off-by: Quan Xu <quan....@linux.alibaba.com>
cc: Zou Nanhai <nanhai....@linux.alibaba.com>
---
drivers/pci/iov.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index 3aa115e..239fad1 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -133,6 +133,7 @@ static void pci_read_vf_config_common(struct pci_dev
*virtfn)
pci_read_config_word(virtfn, PCI_SUBSYSTEM_ID,
&physfn->sriov->subsystem_device);
+ set_pcie_port_type(virtfn);
physfn->sriov->cfg_size = pci_cfg_space_size(virtfn);
}
--
1.8.3.1
