From 072ec93d50fd4c4b27ea44fff160a95c2b581eb1 Mon Sep 17 00:00:00 2001
From: Pei Zhang <pei.zhang@intel.com>
Date: Fri, 8 Dec 2017 15:31:12 +0800
Subject: [PATCH] drm/i915/gvt/kvmgt: fill info for ROM/VGA region
Git-commit: 072ec93d50fd4c4b27ea44fff160a95c2b581eb1
Patch-mainline: v4.16-rc1
References: FATE#322643 bsc#1055900
Both ROM/VGA region are not supported for vGPU in GVT. But if the device
model want to get those region, we should return the correct information
but not leave the structure with random data. Change to same operation
of BAR3-BAR5 which are also not supported by vGPU.
Refer to function @intel_vgpu_rw.
Signed-off-by: Pei Zhang <pei.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/i915/gvt/kvmgt.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -1031,13 +1031,17 @@ static long intel_vgpu_ioctl(struct mdev
case VFIO_PCI_BAR3_REGION_INDEX ... VFIO_PCI_BAR5_REGION_INDEX:
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.size = 0;
-
info.flags = 0;
+
gvt_dbg_core("get region info bar:%d\n", info.index);
break;
case VFIO_PCI_ROM_REGION_INDEX:
case VFIO_PCI_VGA_REGION_INDEX:
+ info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
+ info.size = 0;
+ info.flags = 0;
+
gvt_dbg_core("get region info index:%d\n", info.index);
break;
default: