[Qemu-devel] [PATCH] vfio: Fix vfio_rtl8168_quirk_data_read address offset

[Thorsten Kohfeldt]

From: Thorsten Kohfeldt <mailto__qemu-de...@nongnu.org>
Date: Sat, 24 Sep 2016 20:43:20 +0200
Subject: [PATCH] vfio: Fix vfio_rtl8168_quirk_data_read address offset

Introductory comment for rtl8168 VFIO MSI-X quirk states:
At BAR2 offset 0x70 there is a dword data register,
        offset 0x74 is a dword address register.
vfio: vfio_bar_read(0000:05:00.0:BAR2+0x70, 4) = 0xfee00398 // read data

Thus, correct offset for data read is 0x70,
but function vfio_rtl8168_quirk_data_read() wrongfully uses offset 0x74.

Signed-off-by: Thorsten Kohfeldt <mailto__qemu-de...@nongnu.org>
---
 hw/vfio/pci-quirks.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c
index bec694c..1e97bc4 100644
--- a/hw/vfio/pci-quirks.c
+++ b/hw/vfio/pci-quirks.c
@@ -898,7 +898,7 @@ static uint64_t vfio_rtl8168_quirk_data_read(void *opaque,
 {
     VFIOrtl8168Quirk *rtl = opaque;
     VFIOPCIDevice *vdev = rtl->vdev;
-    uint64_t data = vfio_region_read(&vdev->bars[2].region, addr + 0x74, size);
+    uint64_t data = vfio_region_read(&vdev->bars[2].region, addr + 0x70, size);

     if (rtl->enabled && (vdev->pdev.cap_present & QEMU_PCI_CAP_MSIX)) {
         hwaddr offset = rtl->addr & 0xfff;
--
2.5.5