---
miniport/qxl.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/miniport/qxl.c b/miniport/qxl.c
index 19c0033..6e9bd8e 100644
--- a/miniport/qxl.c
+++ b/miniport/qxl.c
@@ -77,6 +77,7 @@ typedef struct QXLExtension {
PHYSICAL_ADDRESS vram_physical;
ULONG vram_size;
+ UINT8 *vram_start;
ULONG current_mode;
ULONG n_modes;
@@ -928,6 +929,7 @@ BOOLEAN StartIO(PVOID dev_extension, PVIDEO_REQUEST_PACKET
packet)
DEBUG_PRINT((0, "%s: map filed\n", __FUNCTION__));
goto err;
}
+ dev_ext->vram_start = mem_info->VideoRamBase;
DEBUG_PRINT((0, "%s: vram size %lu ret size %lu fb vaddr 0x%lx\n",
__FUNCTION__,
dev_ext->vram_size,
@@ -963,6 +965,7 @@ BOOLEAN StartIO(PVOID dev_extension, PVIDEO_REQUEST_PACKET
packet)
if ((error = VideoPortUnmapMemory(dev_ext, addr, NULL)) !=
NO_ERROR) {
DEBUG_PRINT((0, "%s: unmap failed\n", __FUNCTION__));
}
+ dev_ext->vram_start = NULL;
}
break;
case IOCTL_VIDEO_RESET_DEVICE:
--
1.7.5.2
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