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vfio: make the 4 bytes aligned for capability size

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this function search the capability from the end, the last
size should 0x100 - pos, not 0xff - pos.

Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Chen Fan 2016-02-19 09:42:28 -07:00 committed by Alex Williamson
parent 79095ef717
commit 88caf177ac
1 changed files with 2 additions and 1 deletions
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3
hw/vfio/pci.c
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@ -1505,7 +1505,8 @@ static void vfio_unmap_bars(VFIOPCIDevice *vdev)
*/ */
static uint8_t vfio_std_cap_max_size(PCIDevice *pdev, uint8_t pos) static uint8_t vfio_std_cap_max_size(PCIDevice *pdev, uint8_t pos)
{ {
uint8_t tmp, next = 0xff; uint8_t tmp;
uint16_t next = PCI_CONFIG_SPACE_SIZE;
for (tmp = pdev->config[PCI_CAPABILITY_LIST]; tmp; for (tmp = pdev->config[PCI_CAPABILITY_LIST]; tmp;
tmp = pdev->config[tmp + 1]) { tmp = pdev->config[tmp + 1]) {