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historical/m0-applesillicon.git/xnu-qemu-arm64-5.1.0/hw/display/vmware_vga.c
ThatLinuxFan 4061214e6a phht hahahahaah
2024-01-16 11:20:27 -06:00

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/*
* QEMU VMware-SVGA "chipset".
*
* Copyright (c) 2007 Andrzej Zaborowski <balrog@zabor.org>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "qemu/module.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "qemu/log.h"
#include "hw/loader.h"
#include "trace.h"
#include "ui/vnc.h"
#include "hw/pci/pci.h"
#include "hw/qdev-properties.h"
#include "migration/vmstate.h"
#undef VERBOSE
#define HW_RECT_ACCEL
#define HW_FILL_ACCEL
#define HW_MOUSE_ACCEL
#include "vga_int.h"
/* See http://vmware-svga.sf.net/ for some documentation on VMWare SVGA */
struct vmsvga_state_s {
VGACommonState vga;
int invalidated;
int enable;
int config;
struct {
int id;
int x;
int y;
int on;
} cursor;
int index;
int scratch_size;
uint32_t *scratch;
int new_width;
int new_height;
int new_depth;
uint32_t guest;
uint32_t svgaid;
int syncing;
MemoryRegion fifo_ram;
uint8_t *fifo_ptr;
unsigned int fifo_size;
uint32_t *fifo;
uint32_t fifo_min;
uint32_t fifo_max;
uint32_t fifo_next;
uint32_t fifo_stop;
#define REDRAW_FIFO_LEN 512
struct vmsvga_rect_s {
int x, y, w, h;
} redraw_fifo[REDRAW_FIFO_LEN];
int redraw_fifo_first, redraw_fifo_last;
};
#define TYPE_VMWARE_SVGA "vmware-svga"
#define VMWARE_SVGA(obj) \
OBJECT_CHECK(struct pci_vmsvga_state_s, (obj), TYPE_VMWARE_SVGA)
struct pci_vmsvga_state_s {
/*< private >*/
PCIDevice parent_obj;
/*< public >*/
struct vmsvga_state_s chip;
MemoryRegion io_bar;
};
#define SVGA_MAGIC 0x900000UL
#define SVGA_MAKE_ID(ver) (SVGA_MAGIC << 8 | (ver))
#define SVGA_ID_0 SVGA_MAKE_ID(0)
#define SVGA_ID_1 SVGA_MAKE_ID(1)
#define SVGA_ID_2 SVGA_MAKE_ID(2)
#define SVGA_LEGACY_BASE_PORT 0x4560
#define SVGA_INDEX_PORT 0x0
#define SVGA_VALUE_PORT 0x1
#define SVGA_BIOS_PORT 0x2
#define SVGA_VERSION_2
#ifdef SVGA_VERSION_2
# define SVGA_ID SVGA_ID_2
# define SVGA_IO_BASE SVGA_LEGACY_BASE_PORT
# define SVGA_IO_MUL 1
# define SVGA_FIFO_SIZE 0x10000
# define SVGA_PCI_DEVICE_ID PCI_DEVICE_ID_VMWARE_SVGA2
#else
# define SVGA_ID SVGA_ID_1
# define SVGA_IO_BASE SVGA_LEGACY_BASE_PORT
# define SVGA_IO_MUL 4
# define SVGA_FIFO_SIZE 0x10000
# define SVGA_PCI_DEVICE_ID PCI_DEVICE_ID_VMWARE_SVGA
#endif
enum {
/* ID 0, 1 and 2 registers */
SVGA_REG_ID = 0,
SVGA_REG_ENABLE = 1,
SVGA_REG_WIDTH = 2,
SVGA_REG_HEIGHT = 3,
SVGA_REG_MAX_WIDTH = 4,
SVGA_REG_MAX_HEIGHT = 5,
SVGA_REG_DEPTH = 6,
SVGA_REG_BITS_PER_PIXEL = 7, /* Current bpp in the guest */
SVGA_REG_PSEUDOCOLOR = 8,
SVGA_REG_RED_MASK = 9,
SVGA_REG_GREEN_MASK = 10,
SVGA_REG_BLUE_MASK = 11,
SVGA_REG_BYTES_PER_LINE = 12,
SVGA_REG_FB_START = 13,
SVGA_REG_FB_OFFSET = 14,
SVGA_REG_VRAM_SIZE = 15,
SVGA_REG_FB_SIZE = 16,
/* ID 1 and 2 registers */
SVGA_REG_CAPABILITIES = 17,
SVGA_REG_MEM_START = 18, /* Memory for command FIFO */
SVGA_REG_MEM_SIZE = 19,
SVGA_REG_CONFIG_DONE = 20, /* Set when memory area configured */
SVGA_REG_SYNC = 21, /* Write to force synchronization */
SVGA_REG_BUSY = 22, /* Read to check if sync is done */
SVGA_REG_GUEST_ID = 23, /* Set guest OS identifier */
SVGA_REG_CURSOR_ID = 24, /* ID of cursor */
SVGA_REG_CURSOR_X = 25, /* Set cursor X position */
SVGA_REG_CURSOR_Y = 26, /* Set cursor Y position */
SVGA_REG_CURSOR_ON = 27, /* Turn cursor on/off */
SVGA_REG_HOST_BITS_PER_PIXEL = 28, /* Current bpp in the host */
SVGA_REG_SCRATCH_SIZE = 29, /* Number of scratch registers */
SVGA_REG_MEM_REGS = 30, /* Number of FIFO registers */
SVGA_REG_NUM_DISPLAYS = 31, /* Number of guest displays */
SVGA_REG_PITCHLOCK = 32, /* Fixed pitch for all modes */
SVGA_PALETTE_BASE = 1024, /* Base of SVGA color map */
SVGA_PALETTE_END = SVGA_PALETTE_BASE + 767,
SVGA_SCRATCH_BASE = SVGA_PALETTE_BASE + 768,
};
#define SVGA_CAP_NONE 0
#define SVGA_CAP_RECT_FILL (1 << 0)
#define SVGA_CAP_RECT_COPY (1 << 1)
#define SVGA_CAP_RECT_PAT_FILL (1 << 2)
#define SVGA_CAP_LEGACY_OFFSCREEN (1 << 3)
#define SVGA_CAP_RASTER_OP (1 << 4)
#define SVGA_CAP_CURSOR (1 << 5)
#define SVGA_CAP_CURSOR_BYPASS (1 << 6)
#define SVGA_CAP_CURSOR_BYPASS_2 (1 << 7)
#define SVGA_CAP_8BIT_EMULATION (1 << 8)
#define SVGA_CAP_ALPHA_CURSOR (1 << 9)
#define SVGA_CAP_GLYPH (1 << 10)
#define SVGA_CAP_GLYPH_CLIPPING (1 << 11)
#define SVGA_CAP_OFFSCREEN_1 (1 << 12)
#define SVGA_CAP_ALPHA_BLEND (1 << 13)
#define SVGA_CAP_3D (1 << 14)
#define SVGA_CAP_EXTENDED_FIFO (1 << 15)
#define SVGA_CAP_MULTIMON (1 << 16)
#define SVGA_CAP_PITCHLOCK (1 << 17)
/*
* FIFO offsets (seen as an array of 32-bit words)
*/
enum {
/*
* The original defined FIFO offsets
*/
SVGA_FIFO_MIN = 0,
SVGA_FIFO_MAX, /* The distance from MIN to MAX must be at least 10K */
SVGA_FIFO_NEXT,
SVGA_FIFO_STOP,
/*
* Additional offsets added as of SVGA_CAP_EXTENDED_FIFO
*/
SVGA_FIFO_CAPABILITIES = 4,
SVGA_FIFO_FLAGS,
SVGA_FIFO_FENCE,
SVGA_FIFO_3D_HWVERSION,
SVGA_FIFO_PITCHLOCK,
};
#define SVGA_FIFO_CAP_NONE 0
#define SVGA_FIFO_CAP_FENCE (1 << 0)
#define SVGA_FIFO_CAP_ACCELFRONT (1 << 1)
#define SVGA_FIFO_CAP_PITCHLOCK (1 << 2)
#define SVGA_FIFO_FLAG_NONE 0
#define SVGA_FIFO_FLAG_ACCELFRONT (1 << 0)
/* These values can probably be changed arbitrarily. */
#define SVGA_SCRATCH_SIZE 0x8000
#define SVGA_MAX_WIDTH ROUND_UP(2360, VNC_DIRTY_PIXELS_PER_BIT)
#define SVGA_MAX_HEIGHT 1770
#ifdef VERBOSE
# define GUEST_OS_BASE 0x5001
static const char *vmsvga_guest_id[] = {
[0x00] = "Dos",
[0x01] = "Windows 3.1",
[0x02] = "Windows 95",
[0x03] = "Windows 98",
[0x04] = "Windows ME",
[0x05] = "Windows NT",
[0x06] = "Windows 2000",
[0x07] = "Linux",
[0x08] = "OS/2",
[0x09] = "an unknown OS",
[0x0a] = "BSD",
[0x0b] = "Whistler",
[0x0c] = "an unknown OS",
[0x0d] = "an unknown OS",
[0x0e] = "an unknown OS",
[0x0f] = "an unknown OS",
[0x10] = "an unknown OS",
[0x11] = "an unknown OS",
[0x12] = "an unknown OS",
[0x13] = "an unknown OS",
[0x14] = "an unknown OS",
[0x15] = "Windows 2003",
};
#endif
enum {
SVGA_CMD_INVALID_CMD = 0,
SVGA_CMD_UPDATE = 1,
SVGA_CMD_RECT_FILL = 2,
SVGA_CMD_RECT_COPY = 3,
SVGA_CMD_DEFINE_BITMAP = 4,
SVGA_CMD_DEFINE_BITMAP_SCANLINE = 5,
SVGA_CMD_DEFINE_PIXMAP = 6,
SVGA_CMD_DEFINE_PIXMAP_SCANLINE = 7,
SVGA_CMD_RECT_BITMAP_FILL = 8,
SVGA_CMD_RECT_PIXMAP_FILL = 9,
SVGA_CMD_RECT_BITMAP_COPY = 10,
SVGA_CMD_RECT_PIXMAP_COPY = 11,
SVGA_CMD_FREE_OBJECT = 12,
SVGA_CMD_RECT_ROP_FILL = 13,
SVGA_CMD_RECT_ROP_COPY = 14,
SVGA_CMD_RECT_ROP_BITMAP_FILL = 15,
SVGA_CMD_RECT_ROP_PIXMAP_FILL = 16,
SVGA_CMD_RECT_ROP_BITMAP_COPY = 17,
SVGA_CMD_RECT_ROP_PIXMAP_COPY = 18,
SVGA_CMD_DEFINE_CURSOR = 19,
SVGA_CMD_DISPLAY_CURSOR = 20,
SVGA_CMD_MOVE_CURSOR = 21,
SVGA_CMD_DEFINE_ALPHA_CURSOR = 22,
SVGA_CMD_DRAW_GLYPH = 23,
SVGA_CMD_DRAW_GLYPH_CLIPPED = 24,
SVGA_CMD_UPDATE_VERBOSE = 25,
SVGA_CMD_SURFACE_FILL = 26,
SVGA_CMD_SURFACE_COPY = 27,
SVGA_CMD_SURFACE_ALPHA_BLEND = 28,
SVGA_CMD_FRONT_ROP_FILL = 29,
SVGA_CMD_FENCE = 30,
};
/* Legal values for the SVGA_REG_CURSOR_ON register in cursor bypass mode */
enum {
SVGA_CURSOR_ON_HIDE = 0,
SVGA_CURSOR_ON_SHOW = 1,
SVGA_CURSOR_ON_REMOVE_FROM_FB = 2,
SVGA_CURSOR_ON_RESTORE_TO_FB = 3,
};
static inline bool vmsvga_verify_rect(DisplaySurface *surface,
const char *name,
int x, int y, int w, int h)
{
if (x < 0) {
fprintf(stderr, "%s: x was < 0 (%d)\n", name, x);
return false;
}
if (x > SVGA_MAX_WIDTH) {
fprintf(stderr, "%s: x was > %d (%d)\n", name, SVGA_MAX_WIDTH, x);
return false;
}
if (w < 0) {
fprintf(stderr, "%s: w was < 0 (%d)\n", name, w);
return false;
}
if (w > SVGA_MAX_WIDTH) {
fprintf(stderr, "%s: w was > %d (%d)\n", name, SVGA_MAX_WIDTH, w);
return false;
}
if (x + w > surface_width(surface)) {
fprintf(stderr, "%s: width was > %d (x: %d, w: %d)\n",
name, surface_width(surface), x, w);
return false;
}
if (y < 0) {
fprintf(stderr, "%s: y was < 0 (%d)\n", name, y);
return false;
}
if (y > SVGA_MAX_HEIGHT) {
fprintf(stderr, "%s: y was > %d (%d)\n", name, SVGA_MAX_HEIGHT, y);
return false;
}
if (h < 0) {
fprintf(stderr, "%s: h was < 0 (%d)\n", name, h);
return false;
}
if (h > SVGA_MAX_HEIGHT) {
fprintf(stderr, "%s: h was > %d (%d)\n", name, SVGA_MAX_HEIGHT, h);
return false;
}
if (y + h > surface_height(surface)) {
fprintf(stderr, "%s: update height > %d (y: %d, h: %d)\n",
name, surface_height(surface), y, h);
return false;
}
return true;
}
static inline void vmsvga_update_rect(struct vmsvga_state_s *s,
int x, int y, int w, int h)
{
DisplaySurface *surface = qemu_console_surface(s->vga.con);
int line;
int bypl;
int width;
int start;
uint8_t *src;
uint8_t *dst;
if (!vmsvga_verify_rect(surface, __func__, x, y, w, h)) {
/* go for a fullscreen update as fallback */
x = 0;
y = 0;
w = surface_width(surface);
h = surface_height(surface);
}
bypl = surface_stride(surface);
width = surface_bytes_per_pixel(surface) * w;
start = surface_bytes_per_pixel(surface) * x + bypl * y;
src = s->vga.vram_ptr + start;
dst = surface_data(surface) + start;
for (line = h; line > 0; line--, src += bypl, dst += bypl) {
memcpy(dst, src, width);
}
dpy_gfx_update(s->vga.con, x, y, w, h);
}
static inline void vmsvga_update_rect_delayed(struct vmsvga_state_s *s,
int x, int y, int w, int h)
{
struct vmsvga_rect_s *rect = &s->redraw_fifo[s->redraw_fifo_last++];
s->redraw_fifo_last &= REDRAW_FIFO_LEN - 1;
rect->x = x;
rect->y = y;
rect->w = w;
rect->h = h;
}
static inline void vmsvga_update_rect_flush(struct vmsvga_state_s *s)
{
struct vmsvga_rect_s *rect;
if (s->invalidated) {
s->redraw_fifo_first = s->redraw_fifo_last;
return;
}
/* Overlapping region updates can be optimised out here - if someone
* knows a smart algorithm to do that, please share. */
while (s->redraw_fifo_first != s->redraw_fifo_last) {
rect = &s->redraw_fifo[s->redraw_fifo_first++];
s->redraw_fifo_first &= REDRAW_FIFO_LEN - 1;
vmsvga_update_rect(s, rect->x, rect->y, rect->w, rect->h);
}
}
#ifdef HW_RECT_ACCEL
static inline int vmsvga_copy_rect(struct vmsvga_state_s *s,
int x0, int y0, int x1, int y1, int w, int h)
{
DisplaySurface *surface = qemu_console_surface(s->vga.con);
uint8_t *vram = s->vga.vram_ptr;
int bypl = surface_stride(surface);
int bypp = surface_bytes_per_pixel(surface);
int width = bypp * w;
int line = h;
uint8_t *ptr[2];
if (!vmsvga_verify_rect(surface, "vmsvga_copy_rect/src", x0, y0, w, h)) {
return -1;
}
if (!vmsvga_verify_rect(surface, "vmsvga_copy_rect/dst", x1, y1, w, h)) {
return -1;
}
if (y1 > y0) {
ptr[0] = vram + bypp * x0 + bypl * (y0 + h - 1);
ptr[1] = vram + bypp * x1 + bypl * (y1 + h - 1);
for (; line > 0; line --, ptr[0] -= bypl, ptr[1] -= bypl) {
memmove(ptr[1], ptr[0], width);
}
} else {
ptr[0] = vram + bypp * x0 + bypl * y0;
ptr[1] = vram + bypp * x1 + bypl * y1;
for (; line > 0; line --, ptr[0] += bypl, ptr[1] += bypl) {
memmove(ptr[1], ptr[0], width);
}
}
vmsvga_update_rect_delayed(s, x1, y1, w, h);
return 0;
}
#endif
#ifdef HW_FILL_ACCEL
static inline int vmsvga_fill_rect(struct vmsvga_state_s *s,
uint32_t c, int x, int y, int w, int h)
{
DisplaySurface *surface = qemu_console_surface(s->vga.con);
int bypl = surface_stride(surface);
int width = surface_bytes_per_pixel(surface) * w;
int line = h;
int column;
uint8_t *fst;
uint8_t *dst;
uint8_t *src;
uint8_t col[4];
if (!vmsvga_verify_rect(surface, __func__, x, y, w, h)) {
return -1;
}
col[0] = c;
col[1] = c >> 8;
col[2] = c >> 16;
col[3] = c >> 24;
fst = s->vga.vram_ptr + surface_bytes_per_pixel(surface) * x + bypl * y;
if (line--) {
dst = fst;
src = col;
for (column = width; column > 0; column--) {
*(dst++) = *(src++);
if (src - col == surface_bytes_per_pixel(surface)) {
src = col;
}
}
dst = fst;
for (; line > 0; line--) {
dst += bypl;
memcpy(dst, fst, width);
}
}
vmsvga_update_rect_delayed(s, x, y, w, h);
return 0;
}
#endif
struct vmsvga_cursor_definition_s {
uint32_t width;
uint32_t height;
int id;
uint32_t bpp;
int hot_x;
int hot_y;
uint32_t mask[1024];
uint32_t image[4096];
};
#define SVGA_BITMAP_SIZE(w, h) ((((w) + 31) >> 5) * (h))
#define SVGA_PIXMAP_SIZE(w, h, bpp) (((((w) * (bpp)) + 31) >> 5) * (h))
#ifdef HW_MOUSE_ACCEL
static inline void vmsvga_cursor_define(struct vmsvga_state_s *s,
struct vmsvga_cursor_definition_s *c)
{
QEMUCursor *qc;
int i, pixels;
qc = cursor_alloc(c->width, c->height);
qc->hot_x = c->hot_x;
qc->hot_y = c->hot_y;
switch (c->bpp) {
case 1:
cursor_set_mono(qc, 0xffffff, 0x000000, (void *)c->image,
1, (void *)c->mask);
#ifdef DEBUG
cursor_print_ascii_art(qc, "vmware/mono");
#endif
break;
case 32:
/* fill alpha channel from mask, set color to zero */
cursor_set_mono(qc, 0x000000, 0x000000, (void *)c->mask,
1, (void *)c->mask);
/* add in rgb values */
pixels = c->width * c->height;
for (i = 0; i < pixels; i++) {
qc->data[i] |= c->image[i] & 0xffffff;
}
#ifdef DEBUG
cursor_print_ascii_art(qc, "vmware/32bit");
#endif
break;
default:
fprintf(stderr, "%s: unhandled bpp %d, using fallback cursor\n",
__func__, c->bpp);
cursor_put(qc);
qc = cursor_builtin_left_ptr();
}
dpy_cursor_define(s->vga.con, qc);
cursor_put(qc);
}
#endif
static inline int vmsvga_fifo_length(struct vmsvga_state_s *s)
{
int num;
if (!s->config || !s->enable) {
return 0;
}
s->fifo_min = le32_to_cpu(s->fifo[SVGA_FIFO_MIN]);
s->fifo_max = le32_to_cpu(s->fifo[SVGA_FIFO_MAX]);
s->fifo_next = le32_to_cpu(s->fifo[SVGA_FIFO_NEXT]);
s->fifo_stop = le32_to_cpu(s->fifo[SVGA_FIFO_STOP]);
/* Check range and alignment. */
if ((s->fifo_min | s->fifo_max | s->fifo_next | s->fifo_stop) & 3) {
return 0;
}
if (s->fifo_min < sizeof(uint32_t) * 4) {
return 0;
}
if (s->fifo_max > SVGA_FIFO_SIZE ||
s->fifo_min >= SVGA_FIFO_SIZE ||
s->fifo_stop >= SVGA_FIFO_SIZE ||
s->fifo_next >= SVGA_FIFO_SIZE) {
return 0;
}
if (s->fifo_max < s->fifo_min + 10 * KiB) {
return 0;
}
num = s->fifo_next - s->fifo_stop;
if (num < 0) {
num += s->fifo_max - s->fifo_min;
}
return num >> 2;
}
static inline uint32_t vmsvga_fifo_read_raw(struct vmsvga_state_s *s)
{
uint32_t cmd = s->fifo[s->fifo_stop >> 2];
s->fifo_stop += 4;
if (s->fifo_stop >= s->fifo_max) {
s->fifo_stop = s->fifo_min;
}
s->fifo[SVGA_FIFO_STOP] = cpu_to_le32(s->fifo_stop);
return cmd;
}
static inline uint32_t vmsvga_fifo_read(struct vmsvga_state_s *s)
{
return le32_to_cpu(vmsvga_fifo_read_raw(s));
}
static void vmsvga_fifo_run(struct vmsvga_state_s *s)
{
uint32_t cmd, colour;
int args, len, maxloop = 1024;
int x, y, dx, dy, width, height;
struct vmsvga_cursor_definition_s cursor;
uint32_t cmd_start;
len = vmsvga_fifo_length(s);
while (len > 0 && --maxloop > 0) {
/* May need to go back to the start of the command if incomplete */
cmd_start = s->fifo_stop;
switch (cmd = vmsvga_fifo_read(s)) {
case SVGA_CMD_UPDATE:
case SVGA_CMD_UPDATE_VERBOSE:
len -= 5;
if (len < 0) {
goto rewind;
}
x = vmsvga_fifo_read(s);
y = vmsvga_fifo_read(s);
width = vmsvga_fifo_read(s);
height = vmsvga_fifo_read(s);
vmsvga_update_rect_delayed(s, x, y, width, height);
break;
case SVGA_CMD_RECT_FILL:
len -= 6;
if (len < 0) {
goto rewind;
}
colour = vmsvga_fifo_read(s);
x = vmsvga_fifo_read(s);
y = vmsvga_fifo_read(s);
width = vmsvga_fifo_read(s);
height = vmsvga_fifo_read(s);
#ifdef HW_FILL_ACCEL
if (vmsvga_fill_rect(s, colour, x, y, width, height) == 0) {
break;
}
#endif
args = 0;
goto badcmd;
case SVGA_CMD_RECT_COPY:
len -= 7;
if (len < 0) {
goto rewind;
}
x = vmsvga_fifo_read(s);
y = vmsvga_fifo_read(s);
dx = vmsvga_fifo_read(s);
dy = vmsvga_fifo_read(s);
width = vmsvga_fifo_read(s);
height = vmsvga_fifo_read(s);
#ifdef HW_RECT_ACCEL
if (vmsvga_copy_rect(s, x, y, dx, dy, width, height) == 0) {
break;
}
#endif
args = 0;
goto badcmd;
case SVGA_CMD_DEFINE_CURSOR:
len -= 8;
if (len < 0) {
goto rewind;
}
cursor.id = vmsvga_fifo_read(s);
cursor.hot_x = vmsvga_fifo_read(s);
cursor.hot_y = vmsvga_fifo_read(s);
cursor.width = x = vmsvga_fifo_read(s);
cursor.height = y = vmsvga_fifo_read(s);
vmsvga_fifo_read(s);
cursor.bpp = vmsvga_fifo_read(s);
args = SVGA_BITMAP_SIZE(x, y) + SVGA_PIXMAP_SIZE(x, y, cursor.bpp);
if (cursor.width > 256
|| cursor.height > 256
|| cursor.bpp > 32
|| SVGA_BITMAP_SIZE(x, y) > ARRAY_SIZE(cursor.mask)
|| SVGA_PIXMAP_SIZE(x, y, cursor.bpp)
> ARRAY_SIZE(cursor.image)) {
goto badcmd;
}
len -= args;
if (len < 0) {
goto rewind;
}
for (args = 0; args < SVGA_BITMAP_SIZE(x, y); args++) {
cursor.mask[args] = vmsvga_fifo_read_raw(s);
}
for (args = 0; args < SVGA_PIXMAP_SIZE(x, y, cursor.bpp); args++) {
cursor.image[args] = vmsvga_fifo_read_raw(s);
}
#ifdef HW_MOUSE_ACCEL
vmsvga_cursor_define(s, &cursor);
break;
#else
args = 0;
goto badcmd;
#endif
/*
* Other commands that we at least know the number of arguments
* for so we can avoid FIFO desync if driver uses them illegally.
*/
case SVGA_CMD_DEFINE_ALPHA_CURSOR:
len -= 6;
if (len < 0) {
goto rewind;
}
vmsvga_fifo_read(s);
vmsvga_fifo_read(s);
vmsvga_fifo_read(s);
x = vmsvga_fifo_read(s);
y = vmsvga_fifo_read(s);
args = x * y;
goto badcmd;
case SVGA_CMD_RECT_ROP_FILL:
args = 6;
goto badcmd;
case SVGA_CMD_RECT_ROP_COPY:
args = 7;
goto badcmd;
case SVGA_CMD_DRAW_GLYPH_CLIPPED:
len -= 4;
if (len < 0) {
goto rewind;
}
vmsvga_fifo_read(s);
vmsvga_fifo_read(s);
args = 7 + (vmsvga_fifo_read(s) >> 2);
goto badcmd;
case SVGA_CMD_SURFACE_ALPHA_BLEND:
args = 12;
goto badcmd;
/*
* Other commands that are not listed as depending on any
* CAPABILITIES bits, but are not described in the README either.
*/
case SVGA_CMD_SURFACE_FILL:
case SVGA_CMD_SURFACE_COPY:
case SVGA_CMD_FRONT_ROP_FILL:
case SVGA_CMD_FENCE:
case SVGA_CMD_INVALID_CMD:
break; /* Nop */
default:
args = 0;
badcmd:
len -= args;
if (len < 0) {
goto rewind;
}
while (args--) {
vmsvga_fifo_read(s);
}
printf("%s: Unknown command 0x%02x in SVGA command FIFO\n",
__func__, cmd);
break;
rewind:
s->fifo_stop = cmd_start;
s->fifo[SVGA_FIFO_STOP] = cpu_to_le32(s->fifo_stop);
break;
}
}
s->syncing = 0;
}
static uint32_t vmsvga_index_read(void *opaque, uint32_t address)
{
struct vmsvga_state_s *s = opaque;
return s->index;
}
static void vmsvga_index_write(void *opaque, uint32_t address, uint32_t index)
{
struct vmsvga_state_s *s = opaque;
s->index = index;
}
static uint32_t vmsvga_value_read(void *opaque, uint32_t address)
{
uint32_t caps;
struct vmsvga_state_s *s = opaque;
DisplaySurface *surface = qemu_console_surface(s->vga.con);
PixelFormat pf;
uint32_t ret;
switch (s->index) {
case SVGA_REG_ID:
ret = s->svgaid;
break;
case SVGA_REG_ENABLE:
ret = s->enable;
break;
case SVGA_REG_WIDTH:
ret = s->new_width ? s->new_width : surface_width(surface);
break;
case SVGA_REG_HEIGHT:
ret = s->new_height ? s->new_height : surface_height(surface);
break;
case SVGA_REG_MAX_WIDTH:
ret = SVGA_MAX_WIDTH;
break;
case SVGA_REG_MAX_HEIGHT:
ret = SVGA_MAX_HEIGHT;
break;
case SVGA_REG_DEPTH:
ret = (s->new_depth == 32) ? 24 : s->new_depth;
break;
case SVGA_REG_BITS_PER_PIXEL:
case SVGA_REG_HOST_BITS_PER_PIXEL:
ret = s->new_depth;
break;
case SVGA_REG_PSEUDOCOLOR:
ret = 0x0;
break;
case SVGA_REG_RED_MASK:
pf = qemu_default_pixelformat(s->new_depth);
ret = pf.rmask;
break;
case SVGA_REG_GREEN_MASK:
pf = qemu_default_pixelformat(s->new_depth);
ret = pf.gmask;
break;
case SVGA_REG_BLUE_MASK:
pf = qemu_default_pixelformat(s->new_depth);
ret = pf.bmask;
break;
case SVGA_REG_BYTES_PER_LINE:
if (s->new_width) {
ret = (s->new_depth * s->new_width) / 8;
} else {
ret = surface_stride(surface);
}
break;
case SVGA_REG_FB_START: {
struct pci_vmsvga_state_s *pci_vmsvga
= container_of(s, struct pci_vmsvga_state_s, chip);
ret = pci_get_bar_addr(PCI_DEVICE(pci_vmsvga), 1);
break;
}
case SVGA_REG_FB_OFFSET:
ret = 0x0;
break;
case SVGA_REG_VRAM_SIZE:
ret = s->vga.vram_size; /* No physical VRAM besides the framebuffer */
break;
case SVGA_REG_FB_SIZE:
ret = s->vga.vram_size;
break;
case SVGA_REG_CAPABILITIES:
caps = SVGA_CAP_NONE;
#ifdef HW_RECT_ACCEL
caps |= SVGA_CAP_RECT_COPY;
#endif
#ifdef HW_FILL_ACCEL
caps |= SVGA_CAP_RECT_FILL;
#endif
#ifdef HW_MOUSE_ACCEL
if (dpy_cursor_define_supported(s->vga.con)) {
caps |= SVGA_CAP_CURSOR | SVGA_CAP_CURSOR_BYPASS_2 |
SVGA_CAP_CURSOR_BYPASS;
}
#endif
ret = caps;
break;
case SVGA_REG_MEM_START: {
struct pci_vmsvga_state_s *pci_vmsvga
= container_of(s, struct pci_vmsvga_state_s, chip);
ret = pci_get_bar_addr(PCI_DEVICE(pci_vmsvga), 2);
break;
}
case SVGA_REG_MEM_SIZE:
ret = s->fifo_size;
break;
case SVGA_REG_CONFIG_DONE:
ret = s->config;
break;
case SVGA_REG_SYNC:
case SVGA_REG_BUSY:
ret = s->syncing;
break;
case SVGA_REG_GUEST_ID:
ret = s->guest;
break;
case SVGA_REG_CURSOR_ID:
ret = s->cursor.id;
break;
case SVGA_REG_CURSOR_X:
ret = s->cursor.x;
break;
case SVGA_REG_CURSOR_Y:
ret = s->cursor.y;
break;
case SVGA_REG_CURSOR_ON:
ret = s->cursor.on;
break;
case SVGA_REG_SCRATCH_SIZE:
ret = s->scratch_size;
break;
case SVGA_REG_MEM_REGS:
case SVGA_REG_NUM_DISPLAYS:
case SVGA_REG_PITCHLOCK:
case SVGA_PALETTE_BASE ... SVGA_PALETTE_END:
ret = 0;
break;
default:
if (s->index >= SVGA_SCRATCH_BASE &&
s->index < SVGA_SCRATCH_BASE + s->scratch_size) {
ret = s->scratch[s->index - SVGA_SCRATCH_BASE];
break;
}
qemu_log_mask(LOG_GUEST_ERROR,
"%s: Bad register %02x\n", __func__, s->index);
ret = 0;
break;
}
if (s->index >= SVGA_SCRATCH_BASE) {
trace_vmware_scratch_read(s->index, ret);
} else if (s->index >= SVGA_PALETTE_BASE) {
trace_vmware_palette_read(s->index, ret);
} else {
trace_vmware_value_read(s->index, ret);
}
return ret;
}
static void vmsvga_value_write(void *opaque, uint32_t address, uint32_t value)
{
struct vmsvga_state_s *s = opaque;
if (s->index >= SVGA_SCRATCH_BASE) {
trace_vmware_scratch_write(s->index, value);
} else if (s->index >= SVGA_PALETTE_BASE) {
trace_vmware_palette_write(s->index, value);
} else {
trace_vmware_value_write(s->index, value);
}
switch (s->index) {
case SVGA_REG_ID:
if (value == SVGA_ID_2 || value == SVGA_ID_1 || value == SVGA_ID_0) {
s->svgaid = value;
}
break;
case SVGA_REG_ENABLE:
s->enable = !!value;
s->invalidated = 1;
s->vga.hw_ops->invalidate(&s->vga);
if (s->enable && s->config) {
vga_dirty_log_stop(&s->vga);
} else {
vga_dirty_log_start(&s->vga);
}
break;
case SVGA_REG_WIDTH:
if (value <= SVGA_MAX_WIDTH) {
s->new_width = value;
s->invalidated = 1;
} else {
qemu_log_mask(LOG_GUEST_ERROR,
"%s: Bad width: %i\n", __func__, value);
}
break;
case SVGA_REG_HEIGHT:
if (value <= SVGA_MAX_HEIGHT) {
s->new_height = value;
s->invalidated = 1;
} else {
qemu_log_mask(LOG_GUEST_ERROR,
"%s: Bad height: %i\n", __func__, value);
}
break;
case SVGA_REG_BITS_PER_PIXEL:
if (value != 32) {
qemu_log_mask(LOG_GUEST_ERROR,
"%s: Bad bits per pixel: %i bits\n", __func__, value);
s->config = 0;
s->invalidated = 1;
}
break;
case SVGA_REG_CONFIG_DONE:
if (value) {
s->fifo = (uint32_t *) s->fifo_ptr;
vga_dirty_log_stop(&s->vga);
}
s->config = !!value;
break;
case SVGA_REG_SYNC:
s->syncing = 1;
vmsvga_fifo_run(s); /* Or should we just wait for update_display? */
break;
case SVGA_REG_GUEST_ID:
s->guest = value;
#ifdef VERBOSE
if (value >= GUEST_OS_BASE && value < GUEST_OS_BASE +
ARRAY_SIZE(vmsvga_guest_id)) {
printf("%s: guest runs %s.\n", __func__,
vmsvga_guest_id[value - GUEST_OS_BASE]);
}
#endif
break;
case SVGA_REG_CURSOR_ID:
s->cursor.id = value;
break;
case SVGA_REG_CURSOR_X:
s->cursor.x = value;
break;
case SVGA_REG_CURSOR_Y:
s->cursor.y = value;
break;
case SVGA_REG_CURSOR_ON:
s->cursor.on |= (value == SVGA_CURSOR_ON_SHOW);
s->cursor.on &= (value != SVGA_CURSOR_ON_HIDE);
#ifdef HW_MOUSE_ACCEL
if (value <= SVGA_CURSOR_ON_SHOW) {
dpy_mouse_set(s->vga.con, s->cursor.x, s->cursor.y, s->cursor.on);
}
#endif
break;
case SVGA_REG_DEPTH:
case SVGA_REG_MEM_REGS:
case SVGA_REG_NUM_DISPLAYS:
case SVGA_REG_PITCHLOCK:
case SVGA_PALETTE_BASE ... SVGA_PALETTE_END:
break;
default:
if (s->index >= SVGA_SCRATCH_BASE &&
s->index < SVGA_SCRATCH_BASE + s->scratch_size) {
s->scratch[s->index - SVGA_SCRATCH_BASE] = value;
break;
}
qemu_log_mask(LOG_GUEST_ERROR,
"%s: Bad register %02x\n", __func__, s->index);
}
}
static uint32_t vmsvga_bios_read(void *opaque, uint32_t address)
{
printf("%s: what are we supposed to return?\n", __func__);
return 0xcafe;
}
static void vmsvga_bios_write(void *opaque, uint32_t address, uint32_t data)
{
printf("%s: what are we supposed to do with (%08x)?\n", __func__, data);
}
static inline void vmsvga_check_size(struct vmsvga_state_s *s)
{
DisplaySurface *surface = qemu_console_surface(s->vga.con);
if (s->new_width != surface_width(surface) ||
s->new_height != surface_height(surface) ||
s->new_depth != surface_bits_per_pixel(surface)) {
int stride = (s->new_depth * s->new_width) / 8;
pixman_format_code_t format =
qemu_default_pixman_format(s->new_depth, true);
trace_vmware_setmode(s->new_width, s->new_height, s->new_depth);
surface = qemu_create_displaysurface_from(s->new_width, s->new_height,
format, stride,
s->vga.vram_ptr);
dpy_gfx_replace_surface(s->vga.con, surface);
s->invalidated = 1;
}
}
static void vmsvga_update_display(void *opaque)
{
struct vmsvga_state_s *s = opaque;
if (!s->enable || !s->config) {
/* in standard vga mode */
s->vga.hw_ops->gfx_update(&s->vga);
return;
}
vmsvga_check_size(s);
vmsvga_fifo_run(s);
vmsvga_update_rect_flush(s);
if (s->invalidated) {
s->invalidated = 0;
dpy_gfx_update_full(s->vga.con);
}
}
static void vmsvga_reset(DeviceState *dev)
{
struct pci_vmsvga_state_s *pci = VMWARE_SVGA(dev);
struct vmsvga_state_s *s = &pci->chip;
s->index = 0;
s->enable = 0;
s->config = 0;
s->svgaid = SVGA_ID;
s->cursor.on = 0;
s->redraw_fifo_first = 0;
s->redraw_fifo_last = 0;
s->syncing = 0;
vga_dirty_log_start(&s->vga);
}
static void vmsvga_invalidate_display(void *opaque)
{
struct vmsvga_state_s *s = opaque;
if (!s->enable) {
s->vga.hw_ops->invalidate(&s->vga);
return;
}
s->invalidated = 1;
}
static void vmsvga_text_update(void *opaque, console_ch_t *chardata)
{
struct vmsvga_state_s *s = opaque;
if (s->vga.hw_ops->text_update) {
s->vga.hw_ops->text_update(&s->vga, chardata);
}
}
static int vmsvga_post_load(void *opaque, int version_id)
{
struct vmsvga_state_s *s = opaque;
s->invalidated = 1;
if (s->config) {
s->fifo = (uint32_t *) s->fifo_ptr;
}
return 0;
}
static const VMStateDescription vmstate_vmware_vga_internal = {
.name = "vmware_vga_internal",
.version_id = 0,
.minimum_version_id = 0,
.post_load = vmsvga_post_load,
.fields = (VMStateField[]) {
VMSTATE_INT32_EQUAL(new_depth, struct vmsvga_state_s, NULL),
VMSTATE_INT32(enable, struct vmsvga_state_s),
VMSTATE_INT32(config, struct vmsvga_state_s),
VMSTATE_INT32(cursor.id, struct vmsvga_state_s),
VMSTATE_INT32(cursor.x, struct vmsvga_state_s),
VMSTATE_INT32(cursor.y, struct vmsvga_state_s),
VMSTATE_INT32(cursor.on, struct vmsvga_state_s),
VMSTATE_INT32(index, struct vmsvga_state_s),
VMSTATE_VARRAY_INT32(scratch, struct vmsvga_state_s,
scratch_size, 0, vmstate_info_uint32, uint32_t),
VMSTATE_INT32(new_width, struct vmsvga_state_s),
VMSTATE_INT32(new_height, struct vmsvga_state_s),
VMSTATE_UINT32(guest, struct vmsvga_state_s),
VMSTATE_UINT32(svgaid, struct vmsvga_state_s),
VMSTATE_INT32(syncing, struct vmsvga_state_s),
VMSTATE_UNUSED(4), /* was fb_size */
VMSTATE_END_OF_LIST()
}
};
static const VMStateDescription vmstate_vmware_vga = {
.name = "vmware_vga",
.version_id = 0,
.minimum_version_id = 0,
.fields = (VMStateField[]) {
VMSTATE_PCI_DEVICE(parent_obj, struct pci_vmsvga_state_s),
VMSTATE_STRUCT(chip, struct pci_vmsvga_state_s, 0,
vmstate_vmware_vga_internal, struct vmsvga_state_s),
VMSTATE_END_OF_LIST()
}
};
static const GraphicHwOps vmsvga_ops = {
.invalidate = vmsvga_invalidate_display,
.gfx_update = vmsvga_update_display,
.text_update = vmsvga_text_update,
};
static void vmsvga_init(DeviceState *dev, struct vmsvga_state_s *s,
MemoryRegion *address_space, MemoryRegion *io)
{
s->scratch_size = SVGA_SCRATCH_SIZE;
s->scratch = g_malloc(s->scratch_size * 4);
s->vga.con = graphic_console_init(dev, 0, &vmsvga_ops, s);
s->fifo_size = SVGA_FIFO_SIZE;
memory_region_init_ram(&s->fifo_ram, NULL, "vmsvga.fifo", s->fifo_size,
&error_fatal);
s->fifo_ptr = memory_region_get_ram_ptr(&s->fifo_ram);
vga_common_init(&s->vga, OBJECT(dev));
vga_init(&s->vga, OBJECT(dev), address_space, io, true);
vmstate_register(NULL, 0, &vmstate_vga_common, &s->vga);
s->new_depth = 32;
}
static uint64_t vmsvga_io_read(void *opaque, hwaddr addr, unsigned size)
{
struct vmsvga_state_s *s = opaque;
switch (addr) {
case SVGA_IO_MUL * SVGA_INDEX_PORT: return vmsvga_index_read(s, addr);
case SVGA_IO_MUL * SVGA_VALUE_PORT: return vmsvga_value_read(s, addr);
case SVGA_IO_MUL * SVGA_BIOS_PORT: return vmsvga_bios_read(s, addr);
default: return -1u;
}
}
static void vmsvga_io_write(void *opaque, hwaddr addr,
uint64_t data, unsigned size)
{
struct vmsvga_state_s *s = opaque;
switch (addr) {
case SVGA_IO_MUL * SVGA_INDEX_PORT:
vmsvga_index_write(s, addr, data);
break;
case SVGA_IO_MUL * SVGA_VALUE_PORT:
vmsvga_value_write(s, addr, data);
break;
case SVGA_IO_MUL * SVGA_BIOS_PORT:
vmsvga_bios_write(s, addr, data);
break;
}
}
static const MemoryRegionOps vmsvga_io_ops = {
.read = vmsvga_io_read,
.write = vmsvga_io_write,
.endianness = DEVICE_LITTLE_ENDIAN,
.valid = {
.min_access_size = 4,
.max_access_size = 4,
.unaligned = true,
},
.impl = {
.unaligned = true,
},
};
static void pci_vmsvga_realize(PCIDevice *dev, Error **errp)
{
struct pci_vmsvga_state_s *s = VMWARE_SVGA(dev);
dev->config[PCI_CACHE_LINE_SIZE] = 0x08;
dev->config[PCI_LATENCY_TIMER] = 0x40;
dev->config[PCI_INTERRUPT_LINE] = 0xff; /* End */
memory_region_init_io(&s->io_bar, OBJECT(dev), &vmsvga_io_ops, &s->chip,
"vmsvga-io", 0x10);
memory_region_set_flush_coalesced(&s->io_bar);
pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->io_bar);
vmsvga_init(DEVICE(dev), &s->chip,
pci_address_space(dev), pci_address_space_io(dev));
pci_register_bar(dev, 1, PCI_BASE_ADDRESS_MEM_PREFETCH,
&s->chip.vga.vram);
pci_register_bar(dev, 2, PCI_BASE_ADDRESS_MEM_PREFETCH,
&s->chip.fifo_ram);
}
static Property vga_vmware_properties[] = {
DEFINE_PROP_UINT32("vgamem_mb", struct pci_vmsvga_state_s,
chip.vga.vram_size_mb, 16),
DEFINE_PROP_BOOL("global-vmstate", struct pci_vmsvga_state_s,
chip.vga.global_vmstate, false),
DEFINE_PROP_END_OF_LIST(),
};
static void vmsvga_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
k->realize = pci_vmsvga_realize;
k->romfile = "vgabios-vmware.bin";
k->vendor_id = PCI_VENDOR_ID_VMWARE;
k->device_id = SVGA_PCI_DEVICE_ID;
k->class_id = PCI_CLASS_DISPLAY_VGA;
k->subsystem_vendor_id = PCI_VENDOR_ID_VMWARE;
k->subsystem_id = SVGA_PCI_DEVICE_ID;
dc->reset = vmsvga_reset;
dc->vmsd = &vmstate_vmware_vga;
device_class_set_props(dc, vga_vmware_properties);
dc->hotpluggable = false;
set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
}
static const TypeInfo vmsvga_info = {
.name = TYPE_VMWARE_SVGA,
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(struct pci_vmsvga_state_s),
.class_init = vmsvga_class_init,
.interfaces = (InterfaceInfo[]) {
{ INTERFACE_CONVENTIONAL_PCI_DEVICE },
{ },
},
};
static void vmsvga_register_types(void)
{
type_register_static(&vmsvga_info);
}
type_init(vmsvga_register_types)
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