drm/vboxvideo/vboxvideo.h

1 /* SPDX-License-Identifier: MIT */
2 /* Copyright (C) 2006-2016 Oracle Corporation */
18  *   Last 4096 bytes - Adapter information area.
20  *   Slack - what left after dividing the VRAM.
36  * The host can access the memory only when the port IO is processed.
74  * len_and_flags & ~VBVA_F_RECORD_PARTIAL >= VBVA_RING_BUFFER_SIZE -
80 #define VBVA_RING_BUFFER_SIZE        (4194304 - 1024)
106 /* The value for port IO to let the adapter to interpret the adapter memory. */
109 /* The value for port IO to let the adapter to interpret the adapter memory. */
113  * The value for port IO to let the adapter to interpret the display memory.
146 /* guest->host commands */
165 /* G->H DMA command */
177 /* host->guest commands */
253  * out by the host using width, height, etc values from the vbva_infoscreen
259  * out by the host using the previous mode values for width. height, etc.
279 	/* Width of the screen. */
280 	u32 width;  member
325 	/* Width of the pointer in pixels. */
326 	u32 width;  member
346 	 * mask, therefore, is and_len = (width + 7) / 8 * height. The padding
353 	 * xor_len = width * 4 * height.
367  * command offset from io port.
409 	u32 dx;			/* X offset into the virtual frame-buffer. */
410 	u32 dy;			/* Y offset into the virtual frame-buffer. */
420  * virtual screens and must be re-set.
423 	s32 x;	/* Upper left X co-ordinate relative to the first screen. */
424 	s32 y;	/* Upper left Y co-ordinate relative to the first screen. */
425 	u32 cx;	/* Rectangle width. */
431  * to use the guest information to re-position its own cursor (though this is