Clear the whole GGTT page tables after the quirk is initialized. Obtain
the total size of GGTT and the entry size of one GGTT entry from
intel_device_info().
Suggested-by: Xiong Zhang <xiong.y.zh...@intel.com>
Signed-off-by: Zhi Wang <zhi.a.w...@intel.com>
---
hw/vfio/pci-quirks.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c
index 5a083c1..618c43c 100644
--- a/hw/vfio/pci-quirks.c
+++ b/hw/vfio/pci-quirks.c
@@ -1365,7 +1365,7 @@ static void vfio_probe_igd_bar4_quirk(VFIOPCIDevice
*vdev, int nr)
const struct intel_device_info *info;
void *stolen;
PCIDevice *lpc_bridge;
- int i, ret;
+ int i, j, ret;
uint64_t bdsm_size;
uint32_t gmch;
uint16_t cmd_orig, cmd;
@@ -1570,9 +1570,11 @@ static void vfio_probe_igd_bar4_quirk(VFIOPCIDevice
*vdev, int nr)
vdev->vbasedev.name);
}
- for (i = 1; i < vfio_igd_gtt_max(vdev); i += 4) {
- vfio_region_write(&vdev->bars[4].region, 0, i, 4);
- vfio_region_write(&vdev->bars[4].region, 4, 0, 4);
+ for (i = 1; i < info->get_gtt_size(gmch); i += info->gtt_entry_size) {
+ for (j = 0; j < info->gtt_entry_size; j += 4) {
+ vfio_region_write(&vdev->bars[4].region, 0, i + j, 4);
+ vfio_region_write(&vdev->bars[4].region, 4, 0, 4);
+ }
}
if (pwrite(vdev->vbasedev.fd, &cmd_orig, sizeof(cmd_orig),
--
2.7.4
