cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

vmware_vga.c (39391B)


      1/*
      2 * QEMU VMware-SVGA "chipset".
      3 *
      4 * Copyright (c) 2007 Andrzej Zaborowski  <balrog@zabor.org>
      5 *
      6 * Permission is hereby granted, free of charge, to any person obtaining a copy
      7 * of this software and associated documentation files (the "Software"), to deal
      8 * in the Software without restriction, including without limitation the rights
      9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     10 * copies of the Software, and to permit persons to whom the Software is
     11 * furnished to do so, subject to the following conditions:
     12 *
     13 * The above copyright notice and this permission notice shall be included in
     14 * all copies or substantial portions of the Software.
     15 *
     16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
     19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
     22 * THE SOFTWARE.
     23 */
     24
     25#include "qemu/osdep.h"
     26#include "qemu/module.h"
     27#include "qemu/units.h"
     28#include "qapi/error.h"
     29#include "qemu/log.h"
     30#include "hw/loader.h"
     31#include "trace.h"
     32#include "hw/pci/pci.h"
     33#include "hw/qdev-properties.h"
     34#include "migration/vmstate.h"
     35#include "qom/object.h"
     36
     37#undef VERBOSE
     38#define HW_RECT_ACCEL
     39#define HW_FILL_ACCEL
     40#define HW_MOUSE_ACCEL
     41
     42#include "vga_int.h"
     43
     44/* See http://vmware-svga.sf.net/ for some documentation on VMWare SVGA */
     45
     46struct vmsvga_state_s {
     47    VGACommonState vga;
     48
     49    int invalidated;
     50    int enable;
     51    int config;
     52    struct {
     53        int id;
     54        int x;
     55        int y;
     56        int on;
     57    } cursor;
     58
     59    int index;
     60    int scratch_size;
     61    uint32_t *scratch;
     62    int new_width;
     63    int new_height;
     64    int new_depth;
     65    uint32_t guest;
     66    uint32_t svgaid;
     67    int syncing;
     68
     69    MemoryRegion fifo_ram;
     70    uint8_t *fifo_ptr;
     71    unsigned int fifo_size;
     72
     73    uint32_t *fifo;
     74    uint32_t fifo_min;
     75    uint32_t fifo_max;
     76    uint32_t fifo_next;
     77    uint32_t fifo_stop;
     78
     79#define REDRAW_FIFO_LEN  512
     80    struct vmsvga_rect_s {
     81        int x, y, w, h;
     82    } redraw_fifo[REDRAW_FIFO_LEN];
     83    int redraw_fifo_first, redraw_fifo_last;
     84};
     85
     86#define TYPE_VMWARE_SVGA "vmware-svga"
     87
     88DECLARE_INSTANCE_CHECKER(struct pci_vmsvga_state_s, VMWARE_SVGA,
     89                         TYPE_VMWARE_SVGA)
     90
     91struct pci_vmsvga_state_s {
     92    /*< private >*/
     93    PCIDevice parent_obj;
     94    /*< public >*/
     95
     96    struct vmsvga_state_s chip;
     97    MemoryRegion io_bar;
     98};
     99
    100#define SVGA_MAGIC              0x900000UL
    101#define SVGA_MAKE_ID(ver)       (SVGA_MAGIC << 8 | (ver))
    102#define SVGA_ID_0               SVGA_MAKE_ID(0)
    103#define SVGA_ID_1               SVGA_MAKE_ID(1)
    104#define SVGA_ID_2               SVGA_MAKE_ID(2)
    105
    106#define SVGA_LEGACY_BASE_PORT   0x4560
    107#define SVGA_INDEX_PORT         0x0
    108#define SVGA_VALUE_PORT         0x1
    109#define SVGA_BIOS_PORT          0x2
    110
    111#define SVGA_VERSION_2
    112
    113#ifdef SVGA_VERSION_2
    114# define SVGA_ID                SVGA_ID_2
    115# define SVGA_IO_BASE           SVGA_LEGACY_BASE_PORT
    116# define SVGA_IO_MUL            1
    117# define SVGA_FIFO_SIZE         0x10000
    118# define SVGA_PCI_DEVICE_ID     PCI_DEVICE_ID_VMWARE_SVGA2
    119#else
    120# define SVGA_ID                SVGA_ID_1
    121# define SVGA_IO_BASE           SVGA_LEGACY_BASE_PORT
    122# define SVGA_IO_MUL            4
    123# define SVGA_FIFO_SIZE         0x10000
    124# define SVGA_PCI_DEVICE_ID     PCI_DEVICE_ID_VMWARE_SVGA
    125#endif
    126
    127enum {
    128    /* ID 0, 1 and 2 registers */
    129    SVGA_REG_ID = 0,
    130    SVGA_REG_ENABLE = 1,
    131    SVGA_REG_WIDTH = 2,
    132    SVGA_REG_HEIGHT = 3,
    133    SVGA_REG_MAX_WIDTH = 4,
    134    SVGA_REG_MAX_HEIGHT = 5,
    135    SVGA_REG_DEPTH = 6,
    136    SVGA_REG_BITS_PER_PIXEL = 7,        /* Current bpp in the guest */
    137    SVGA_REG_PSEUDOCOLOR = 8,
    138    SVGA_REG_RED_MASK = 9,
    139    SVGA_REG_GREEN_MASK = 10,
    140    SVGA_REG_BLUE_MASK = 11,
    141    SVGA_REG_BYTES_PER_LINE = 12,
    142    SVGA_REG_FB_START = 13,
    143    SVGA_REG_FB_OFFSET = 14,
    144    SVGA_REG_VRAM_SIZE = 15,
    145    SVGA_REG_FB_SIZE = 16,
    146
    147    /* ID 1 and 2 registers */
    148    SVGA_REG_CAPABILITIES = 17,
    149    SVGA_REG_MEM_START = 18,            /* Memory for command FIFO */
    150    SVGA_REG_MEM_SIZE = 19,
    151    SVGA_REG_CONFIG_DONE = 20,          /* Set when memory area configured */
    152    SVGA_REG_SYNC = 21,                 /* Write to force synchronization */
    153    SVGA_REG_BUSY = 22,                 /* Read to check if sync is done */
    154    SVGA_REG_GUEST_ID = 23,             /* Set guest OS identifier */
    155    SVGA_REG_CURSOR_ID = 24,            /* ID of cursor */
    156    SVGA_REG_CURSOR_X = 25,             /* Set cursor X position */
    157    SVGA_REG_CURSOR_Y = 26,             /* Set cursor Y position */
    158    SVGA_REG_CURSOR_ON = 27,            /* Turn cursor on/off */
    159    SVGA_REG_HOST_BITS_PER_PIXEL = 28,  /* Current bpp in the host */
    160    SVGA_REG_SCRATCH_SIZE = 29,         /* Number of scratch registers */
    161    SVGA_REG_MEM_REGS = 30,             /* Number of FIFO registers */
    162    SVGA_REG_NUM_DISPLAYS = 31,         /* Number of guest displays */
    163    SVGA_REG_PITCHLOCK = 32,            /* Fixed pitch for all modes */
    164
    165    SVGA_PALETTE_BASE = 1024,           /* Base of SVGA color map */
    166    SVGA_PALETTE_END  = SVGA_PALETTE_BASE + 767,
    167    SVGA_SCRATCH_BASE = SVGA_PALETTE_BASE + 768,
    168};
    169
    170#define SVGA_CAP_NONE                   0
    171#define SVGA_CAP_RECT_FILL              (1 << 0)
    172#define SVGA_CAP_RECT_COPY              (1 << 1)
    173#define SVGA_CAP_RECT_PAT_FILL          (1 << 2)
    174#define SVGA_CAP_LEGACY_OFFSCREEN       (1 << 3)
    175#define SVGA_CAP_RASTER_OP              (1 << 4)
    176#define SVGA_CAP_CURSOR                 (1 << 5)
    177#define SVGA_CAP_CURSOR_BYPASS          (1 << 6)
    178#define SVGA_CAP_CURSOR_BYPASS_2        (1 << 7)
    179#define SVGA_CAP_8BIT_EMULATION         (1 << 8)
    180#define SVGA_CAP_ALPHA_CURSOR           (1 << 9)
    181#define SVGA_CAP_GLYPH                  (1 << 10)
    182#define SVGA_CAP_GLYPH_CLIPPING         (1 << 11)
    183#define SVGA_CAP_OFFSCREEN_1            (1 << 12)
    184#define SVGA_CAP_ALPHA_BLEND            (1 << 13)
    185#define SVGA_CAP_3D                     (1 << 14)
    186#define SVGA_CAP_EXTENDED_FIFO          (1 << 15)
    187#define SVGA_CAP_MULTIMON               (1 << 16)
    188#define SVGA_CAP_PITCHLOCK              (1 << 17)
    189
    190/*
    191 * FIFO offsets (seen as an array of 32-bit words)
    192 */
    193enum {
    194    /*
    195     * The original defined FIFO offsets
    196     */
    197    SVGA_FIFO_MIN = 0,
    198    SVGA_FIFO_MAX,      /* The distance from MIN to MAX must be at least 10K */
    199    SVGA_FIFO_NEXT,
    200    SVGA_FIFO_STOP,
    201
    202    /*
    203     * Additional offsets added as of SVGA_CAP_EXTENDED_FIFO
    204     */
    205    SVGA_FIFO_CAPABILITIES = 4,
    206    SVGA_FIFO_FLAGS,
    207    SVGA_FIFO_FENCE,
    208    SVGA_FIFO_3D_HWVERSION,
    209    SVGA_FIFO_PITCHLOCK,
    210};
    211
    212#define SVGA_FIFO_CAP_NONE              0
    213#define SVGA_FIFO_CAP_FENCE             (1 << 0)
    214#define SVGA_FIFO_CAP_ACCELFRONT        (1 << 1)
    215#define SVGA_FIFO_CAP_PITCHLOCK         (1 << 2)
    216
    217#define SVGA_FIFO_FLAG_NONE             0
    218#define SVGA_FIFO_FLAG_ACCELFRONT       (1 << 0)
    219
    220/* These values can probably be changed arbitrarily.  */
    221#define SVGA_SCRATCH_SIZE               0x8000
    222#define SVGA_MAX_WIDTH                  2368
    223#define SVGA_MAX_HEIGHT                 1770
    224
    225#ifdef VERBOSE
    226# define GUEST_OS_BASE          0x5001
    227static const char *vmsvga_guest_id[] = {
    228    [0x00] = "Dos",
    229    [0x01] = "Windows 3.1",
    230    [0x02] = "Windows 95",
    231    [0x03] = "Windows 98",
    232    [0x04] = "Windows ME",
    233    [0x05] = "Windows NT",
    234    [0x06] = "Windows 2000",
    235    [0x07] = "Linux",
    236    [0x08] = "OS/2",
    237    [0x09] = "an unknown OS",
    238    [0x0a] = "BSD",
    239    [0x0b] = "Whistler",
    240    [0x0c] = "an unknown OS",
    241    [0x0d] = "an unknown OS",
    242    [0x0e] = "an unknown OS",
    243    [0x0f] = "an unknown OS",
    244    [0x10] = "an unknown OS",
    245    [0x11] = "an unknown OS",
    246    [0x12] = "an unknown OS",
    247    [0x13] = "an unknown OS",
    248    [0x14] = "an unknown OS",
    249    [0x15] = "Windows 2003",
    250};
    251#endif
    252
    253enum {
    254    SVGA_CMD_INVALID_CMD = 0,
    255    SVGA_CMD_UPDATE = 1,
    256    SVGA_CMD_RECT_FILL = 2,
    257    SVGA_CMD_RECT_COPY = 3,
    258    SVGA_CMD_DEFINE_BITMAP = 4,
    259    SVGA_CMD_DEFINE_BITMAP_SCANLINE = 5,
    260    SVGA_CMD_DEFINE_PIXMAP = 6,
    261    SVGA_CMD_DEFINE_PIXMAP_SCANLINE = 7,
    262    SVGA_CMD_RECT_BITMAP_FILL = 8,
    263    SVGA_CMD_RECT_PIXMAP_FILL = 9,
    264    SVGA_CMD_RECT_BITMAP_COPY = 10,
    265    SVGA_CMD_RECT_PIXMAP_COPY = 11,
    266    SVGA_CMD_FREE_OBJECT = 12,
    267    SVGA_CMD_RECT_ROP_FILL = 13,
    268    SVGA_CMD_RECT_ROP_COPY = 14,
    269    SVGA_CMD_RECT_ROP_BITMAP_FILL = 15,
    270    SVGA_CMD_RECT_ROP_PIXMAP_FILL = 16,
    271    SVGA_CMD_RECT_ROP_BITMAP_COPY = 17,
    272    SVGA_CMD_RECT_ROP_PIXMAP_COPY = 18,
    273    SVGA_CMD_DEFINE_CURSOR = 19,
    274    SVGA_CMD_DISPLAY_CURSOR = 20,
    275    SVGA_CMD_MOVE_CURSOR = 21,
    276    SVGA_CMD_DEFINE_ALPHA_CURSOR = 22,
    277    SVGA_CMD_DRAW_GLYPH = 23,
    278    SVGA_CMD_DRAW_GLYPH_CLIPPED = 24,
    279    SVGA_CMD_UPDATE_VERBOSE = 25,
    280    SVGA_CMD_SURFACE_FILL = 26,
    281    SVGA_CMD_SURFACE_COPY = 27,
    282    SVGA_CMD_SURFACE_ALPHA_BLEND = 28,
    283    SVGA_CMD_FRONT_ROP_FILL = 29,
    284    SVGA_CMD_FENCE = 30,
    285};
    286
    287/* Legal values for the SVGA_REG_CURSOR_ON register in cursor bypass mode */
    288enum {
    289    SVGA_CURSOR_ON_HIDE = 0,
    290    SVGA_CURSOR_ON_SHOW = 1,
    291    SVGA_CURSOR_ON_REMOVE_FROM_FB = 2,
    292    SVGA_CURSOR_ON_RESTORE_TO_FB = 3,
    293};
    294
    295static inline bool vmsvga_verify_rect(DisplaySurface *surface,
    296                                      const char *name,
    297                                      int x, int y, int w, int h)
    298{
    299    if (x < 0) {
    300        fprintf(stderr, "%s: x was < 0 (%d)\n", name, x);
    301        return false;
    302    }
    303    if (x > SVGA_MAX_WIDTH) {
    304        fprintf(stderr, "%s: x was > %d (%d)\n", name, SVGA_MAX_WIDTH, x);
    305        return false;
    306    }
    307    if (w < 0) {
    308        fprintf(stderr, "%s: w was < 0 (%d)\n", name, w);
    309        return false;
    310    }
    311    if (w > SVGA_MAX_WIDTH) {
    312        fprintf(stderr, "%s: w was > %d (%d)\n", name, SVGA_MAX_WIDTH, w);
    313        return false;
    314    }
    315    if (x + w > surface_width(surface)) {
    316        fprintf(stderr, "%s: width was > %d (x: %d, w: %d)\n",
    317                name, surface_width(surface), x, w);
    318        return false;
    319    }
    320
    321    if (y < 0) {
    322        fprintf(stderr, "%s: y was < 0 (%d)\n", name, y);
    323        return false;
    324    }
    325    if (y > SVGA_MAX_HEIGHT) {
    326        fprintf(stderr, "%s: y was > %d (%d)\n", name, SVGA_MAX_HEIGHT, y);
    327        return false;
    328    }
    329    if (h < 0) {
    330        fprintf(stderr, "%s: h was < 0 (%d)\n", name, h);
    331        return false;
    332    }
    333    if (h > SVGA_MAX_HEIGHT) {
    334        fprintf(stderr, "%s: h was > %d (%d)\n", name, SVGA_MAX_HEIGHT, h);
    335        return false;
    336    }
    337    if (y + h > surface_height(surface)) {
    338        fprintf(stderr, "%s: update height > %d (y: %d, h: %d)\n",
    339                name, surface_height(surface), y, h);
    340        return false;
    341    }
    342
    343    return true;
    344}
    345
    346static inline void vmsvga_update_rect(struct vmsvga_state_s *s,
    347                                      int x, int y, int w, int h)
    348{
    349    DisplaySurface *surface = qemu_console_surface(s->vga.con);
    350    int line;
    351    int bypl;
    352    int width;
    353    int start;
    354    uint8_t *src;
    355    uint8_t *dst;
    356
    357    if (!vmsvga_verify_rect(surface, __func__, x, y, w, h)) {
    358        /* go for a fullscreen update as fallback */
    359        x = 0;
    360        y = 0;
    361        w = surface_width(surface);
    362        h = surface_height(surface);
    363    }
    364
    365    bypl = surface_stride(surface);
    366    width = surface_bytes_per_pixel(surface) * w;
    367    start = surface_bytes_per_pixel(surface) * x + bypl * y;
    368    src = s->vga.vram_ptr + start;
    369    dst = surface_data(surface) + start;
    370
    371    for (line = h; line > 0; line--, src += bypl, dst += bypl) {
    372        memcpy(dst, src, width);
    373    }
    374    dpy_gfx_update(s->vga.con, x, y, w, h);
    375}
    376
    377static inline void vmsvga_update_rect_delayed(struct vmsvga_state_s *s,
    378                int x, int y, int w, int h)
    379{
    380    struct vmsvga_rect_s *rect = &s->redraw_fifo[s->redraw_fifo_last++];
    381
    382    s->redraw_fifo_last &= REDRAW_FIFO_LEN - 1;
    383    rect->x = x;
    384    rect->y = y;
    385    rect->w = w;
    386    rect->h = h;
    387}
    388
    389static inline void vmsvga_update_rect_flush(struct vmsvga_state_s *s)
    390{
    391    struct vmsvga_rect_s *rect;
    392
    393    if (s->invalidated) {
    394        s->redraw_fifo_first = s->redraw_fifo_last;
    395        return;
    396    }
    397    /* Overlapping region updates can be optimised out here - if someone
    398     * knows a smart algorithm to do that, please share.  */
    399    while (s->redraw_fifo_first != s->redraw_fifo_last) {
    400        rect = &s->redraw_fifo[s->redraw_fifo_first++];
    401        s->redraw_fifo_first &= REDRAW_FIFO_LEN - 1;
    402        vmsvga_update_rect(s, rect->x, rect->y, rect->w, rect->h);
    403    }
    404}
    405
    406#ifdef HW_RECT_ACCEL
    407static inline int vmsvga_copy_rect(struct vmsvga_state_s *s,
    408                int x0, int y0, int x1, int y1, int w, int h)
    409{
    410    DisplaySurface *surface = qemu_console_surface(s->vga.con);
    411    uint8_t *vram = s->vga.vram_ptr;
    412    int bypl = surface_stride(surface);
    413    int bypp = surface_bytes_per_pixel(surface);
    414    int width = bypp * w;
    415    int line = h;
    416    uint8_t *ptr[2];
    417
    418    if (!vmsvga_verify_rect(surface, "vmsvga_copy_rect/src", x0, y0, w, h)) {
    419        return -1;
    420    }
    421    if (!vmsvga_verify_rect(surface, "vmsvga_copy_rect/dst", x1, y1, w, h)) {
    422        return -1;
    423    }
    424
    425    if (y1 > y0) {
    426        ptr[0] = vram + bypp * x0 + bypl * (y0 + h - 1);
    427        ptr[1] = vram + bypp * x1 + bypl * (y1 + h - 1);
    428        for (; line > 0; line --, ptr[0] -= bypl, ptr[1] -= bypl) {
    429            memmove(ptr[1], ptr[0], width);
    430        }
    431    } else {
    432        ptr[0] = vram + bypp * x0 + bypl * y0;
    433        ptr[1] = vram + bypp * x1 + bypl * y1;
    434        for (; line > 0; line --, ptr[0] += bypl, ptr[1] += bypl) {
    435            memmove(ptr[1], ptr[0], width);
    436        }
    437    }
    438
    439    vmsvga_update_rect_delayed(s, x1, y1, w, h);
    440    return 0;
    441}
    442#endif
    443
    444#ifdef HW_FILL_ACCEL
    445static inline int vmsvga_fill_rect(struct vmsvga_state_s *s,
    446                uint32_t c, int x, int y, int w, int h)
    447{
    448    DisplaySurface *surface = qemu_console_surface(s->vga.con);
    449    int bypl = surface_stride(surface);
    450    int width = surface_bytes_per_pixel(surface) * w;
    451    int line = h;
    452    int column;
    453    uint8_t *fst;
    454    uint8_t *dst;
    455    uint8_t *src;
    456    uint8_t col[4];
    457
    458    if (!vmsvga_verify_rect(surface, __func__, x, y, w, h)) {
    459        return -1;
    460    }
    461
    462    col[0] = c;
    463    col[1] = c >> 8;
    464    col[2] = c >> 16;
    465    col[3] = c >> 24;
    466
    467    fst = s->vga.vram_ptr + surface_bytes_per_pixel(surface) * x + bypl * y;
    468
    469    if (line--) {
    470        dst = fst;
    471        src = col;
    472        for (column = width; column > 0; column--) {
    473            *(dst++) = *(src++);
    474            if (src - col == surface_bytes_per_pixel(surface)) {
    475                src = col;
    476            }
    477        }
    478        dst = fst;
    479        for (; line > 0; line--) {
    480            dst += bypl;
    481            memcpy(dst, fst, width);
    482        }
    483    }
    484
    485    vmsvga_update_rect_delayed(s, x, y, w, h);
    486    return 0;
    487}
    488#endif
    489
    490struct vmsvga_cursor_definition_s {
    491    uint32_t width;
    492    uint32_t height;
    493    int id;
    494    uint32_t bpp;
    495    int hot_x;
    496    int hot_y;
    497    uint32_t mask[1024];
    498    uint32_t image[4096];
    499};
    500
    501#define SVGA_BITMAP_SIZE(w, h)          ((((w) + 31) >> 5) * (h))
    502#define SVGA_PIXMAP_SIZE(w, h, bpp)     (((((w) * (bpp)) + 31) >> 5) * (h))
    503
    504#ifdef HW_MOUSE_ACCEL
    505static inline void vmsvga_cursor_define(struct vmsvga_state_s *s,
    506                struct vmsvga_cursor_definition_s *c)
    507{
    508    QEMUCursor *qc;
    509    int i, pixels;
    510
    511    qc = cursor_alloc(c->width, c->height);
    512    qc->hot_x = c->hot_x;
    513    qc->hot_y = c->hot_y;
    514    switch (c->bpp) {
    515    case 1:
    516        cursor_set_mono(qc, 0xffffff, 0x000000, (void *)c->image,
    517                        1, (void *)c->mask);
    518#ifdef DEBUG
    519        cursor_print_ascii_art(qc, "vmware/mono");
    520#endif
    521        break;
    522    case 32:
    523        /* fill alpha channel from mask, set color to zero */
    524        cursor_set_mono(qc, 0x000000, 0x000000, (void *)c->mask,
    525                        1, (void *)c->mask);
    526        /* add in rgb values */
    527        pixels = c->width * c->height;
    528        for (i = 0; i < pixels; i++) {
    529            qc->data[i] |= c->image[i] & 0xffffff;
    530        }
    531#ifdef DEBUG
    532        cursor_print_ascii_art(qc, "vmware/32bit");
    533#endif
    534        break;
    535    default:
    536        fprintf(stderr, "%s: unhandled bpp %d, using fallback cursor\n",
    537                __func__, c->bpp);
    538        cursor_put(qc);
    539        qc = cursor_builtin_left_ptr();
    540    }
    541
    542    dpy_cursor_define(s->vga.con, qc);
    543    cursor_put(qc);
    544}
    545#endif
    546
    547static inline int vmsvga_fifo_length(struct vmsvga_state_s *s)
    548{
    549    int num;
    550
    551    if (!s->config || !s->enable) {
    552        return 0;
    553    }
    554
    555    s->fifo_min  = le32_to_cpu(s->fifo[SVGA_FIFO_MIN]);
    556    s->fifo_max  = le32_to_cpu(s->fifo[SVGA_FIFO_MAX]);
    557    s->fifo_next = le32_to_cpu(s->fifo[SVGA_FIFO_NEXT]);
    558    s->fifo_stop = le32_to_cpu(s->fifo[SVGA_FIFO_STOP]);
    559
    560    /* Check range and alignment.  */
    561    if ((s->fifo_min | s->fifo_max | s->fifo_next | s->fifo_stop) & 3) {
    562        return 0;
    563    }
    564    if (s->fifo_min < sizeof(uint32_t) * 4) {
    565        return 0;
    566    }
    567    if (s->fifo_max > SVGA_FIFO_SIZE ||
    568        s->fifo_min >= SVGA_FIFO_SIZE ||
    569        s->fifo_stop >= SVGA_FIFO_SIZE ||
    570        s->fifo_next >= SVGA_FIFO_SIZE) {
    571        return 0;
    572    }
    573    if (s->fifo_max < s->fifo_min + 10 * KiB) {
    574        return 0;
    575    }
    576
    577    num = s->fifo_next - s->fifo_stop;
    578    if (num < 0) {
    579        num += s->fifo_max - s->fifo_min;
    580    }
    581    return num >> 2;
    582}
    583
    584static inline uint32_t vmsvga_fifo_read_raw(struct vmsvga_state_s *s)
    585{
    586    uint32_t cmd = s->fifo[s->fifo_stop >> 2];
    587
    588    s->fifo_stop += 4;
    589    if (s->fifo_stop >= s->fifo_max) {
    590        s->fifo_stop = s->fifo_min;
    591    }
    592    s->fifo[SVGA_FIFO_STOP] = cpu_to_le32(s->fifo_stop);
    593    return cmd;
    594}
    595
    596static inline uint32_t vmsvga_fifo_read(struct vmsvga_state_s *s)
    597{
    598    return le32_to_cpu(vmsvga_fifo_read_raw(s));
    599}
    600
    601static void vmsvga_fifo_run(struct vmsvga_state_s *s)
    602{
    603    uint32_t cmd, colour;
    604    int args, len, maxloop = 1024;
    605    int x, y, dx, dy, width, height;
    606    struct vmsvga_cursor_definition_s cursor;
    607    uint32_t cmd_start;
    608
    609    len = vmsvga_fifo_length(s);
    610    while (len > 0 && --maxloop > 0) {
    611        /* May need to go back to the start of the command if incomplete */
    612        cmd_start = s->fifo_stop;
    613
    614        switch (cmd = vmsvga_fifo_read(s)) {
    615        case SVGA_CMD_UPDATE:
    616        case SVGA_CMD_UPDATE_VERBOSE:
    617            len -= 5;
    618            if (len < 0) {
    619                goto rewind;
    620            }
    621
    622            x = vmsvga_fifo_read(s);
    623            y = vmsvga_fifo_read(s);
    624            width = vmsvga_fifo_read(s);
    625            height = vmsvga_fifo_read(s);
    626            vmsvga_update_rect_delayed(s, x, y, width, height);
    627            break;
    628
    629        case SVGA_CMD_RECT_FILL:
    630            len -= 6;
    631            if (len < 0) {
    632                goto rewind;
    633            }
    634
    635            colour = vmsvga_fifo_read(s);
    636            x = vmsvga_fifo_read(s);
    637            y = vmsvga_fifo_read(s);
    638            width = vmsvga_fifo_read(s);
    639            height = vmsvga_fifo_read(s);
    640#ifdef HW_FILL_ACCEL
    641            if (vmsvga_fill_rect(s, colour, x, y, width, height) == 0) {
    642                break;
    643            }
    644#endif
    645            args = 0;
    646            goto badcmd;
    647
    648        case SVGA_CMD_RECT_COPY:
    649            len -= 7;
    650            if (len < 0) {
    651                goto rewind;
    652            }
    653
    654            x = vmsvga_fifo_read(s);
    655            y = vmsvga_fifo_read(s);
    656            dx = vmsvga_fifo_read(s);
    657            dy = vmsvga_fifo_read(s);
    658            width = vmsvga_fifo_read(s);
    659            height = vmsvga_fifo_read(s);
    660#ifdef HW_RECT_ACCEL
    661            if (vmsvga_copy_rect(s, x, y, dx, dy, width, height) == 0) {
    662                break;
    663            }
    664#endif
    665            args = 0;
    666            goto badcmd;
    667
    668        case SVGA_CMD_DEFINE_CURSOR:
    669            len -= 8;
    670            if (len < 0) {
    671                goto rewind;
    672            }
    673
    674            cursor.id = vmsvga_fifo_read(s);
    675            cursor.hot_x = vmsvga_fifo_read(s);
    676            cursor.hot_y = vmsvga_fifo_read(s);
    677            cursor.width = x = vmsvga_fifo_read(s);
    678            cursor.height = y = vmsvga_fifo_read(s);
    679            vmsvga_fifo_read(s);
    680            cursor.bpp = vmsvga_fifo_read(s);
    681
    682            args = SVGA_BITMAP_SIZE(x, y) + SVGA_PIXMAP_SIZE(x, y, cursor.bpp);
    683            if (cursor.width > 256
    684                || cursor.height > 256
    685                || cursor.bpp > 32
    686                || SVGA_BITMAP_SIZE(x, y) > ARRAY_SIZE(cursor.mask)
    687                || SVGA_PIXMAP_SIZE(x, y, cursor.bpp)
    688                    > ARRAY_SIZE(cursor.image)) {
    689                    goto badcmd;
    690            }
    691
    692            len -= args;
    693            if (len < 0) {
    694                goto rewind;
    695            }
    696
    697            for (args = 0; args < SVGA_BITMAP_SIZE(x, y); args++) {
    698                cursor.mask[args] = vmsvga_fifo_read_raw(s);
    699            }
    700            for (args = 0; args < SVGA_PIXMAP_SIZE(x, y, cursor.bpp); args++) {
    701                cursor.image[args] = vmsvga_fifo_read_raw(s);
    702            }
    703#ifdef HW_MOUSE_ACCEL
    704            vmsvga_cursor_define(s, &cursor);
    705            break;
    706#else
    707            args = 0;
    708            goto badcmd;
    709#endif
    710
    711        /*
    712         * Other commands that we at least know the number of arguments
    713         * for so we can avoid FIFO desync if driver uses them illegally.
    714         */
    715        case SVGA_CMD_DEFINE_ALPHA_CURSOR:
    716            len -= 6;
    717            if (len < 0) {
    718                goto rewind;
    719            }
    720            vmsvga_fifo_read(s);
    721            vmsvga_fifo_read(s);
    722            vmsvga_fifo_read(s);
    723            x = vmsvga_fifo_read(s);
    724            y = vmsvga_fifo_read(s);
    725            args = x * y;
    726            goto badcmd;
    727        case SVGA_CMD_RECT_ROP_FILL:
    728            args = 6;
    729            goto badcmd;
    730        case SVGA_CMD_RECT_ROP_COPY:
    731            args = 7;
    732            goto badcmd;
    733        case SVGA_CMD_DRAW_GLYPH_CLIPPED:
    734            len -= 4;
    735            if (len < 0) {
    736                goto rewind;
    737            }
    738            vmsvga_fifo_read(s);
    739            vmsvga_fifo_read(s);
    740            args = 7 + (vmsvga_fifo_read(s) >> 2);
    741            goto badcmd;
    742        case SVGA_CMD_SURFACE_ALPHA_BLEND:
    743            args = 12;
    744            goto badcmd;
    745
    746        /*
    747         * Other commands that are not listed as depending on any
    748         * CAPABILITIES bits, but are not described in the README either.
    749         */
    750        case SVGA_CMD_SURFACE_FILL:
    751        case SVGA_CMD_SURFACE_COPY:
    752        case SVGA_CMD_FRONT_ROP_FILL:
    753        case SVGA_CMD_FENCE:
    754        case SVGA_CMD_INVALID_CMD:
    755            break; /* Nop */
    756
    757        default:
    758            args = 0;
    759        badcmd:
    760            len -= args;
    761            if (len < 0) {
    762                goto rewind;
    763            }
    764            while (args--) {
    765                vmsvga_fifo_read(s);
    766            }
    767            printf("%s: Unknown command 0x%02x in SVGA command FIFO\n",
    768                   __func__, cmd);
    769            break;
    770
    771        rewind:
    772            s->fifo_stop = cmd_start;
    773            s->fifo[SVGA_FIFO_STOP] = cpu_to_le32(s->fifo_stop);
    774            break;
    775        }
    776    }
    777
    778    s->syncing = 0;
    779}
    780
    781static uint32_t vmsvga_index_read(void *opaque, uint32_t address)
    782{
    783    struct vmsvga_state_s *s = opaque;
    784
    785    return s->index;
    786}
    787
    788static void vmsvga_index_write(void *opaque, uint32_t address, uint32_t index)
    789{
    790    struct vmsvga_state_s *s = opaque;
    791
    792    s->index = index;
    793}
    794
    795static uint32_t vmsvga_value_read(void *opaque, uint32_t address)
    796{
    797    uint32_t caps;
    798    struct vmsvga_state_s *s = opaque;
    799    DisplaySurface *surface = qemu_console_surface(s->vga.con);
    800    PixelFormat pf;
    801    uint32_t ret;
    802
    803    switch (s->index) {
    804    case SVGA_REG_ID:
    805        ret = s->svgaid;
    806        break;
    807
    808    case SVGA_REG_ENABLE:
    809        ret = s->enable;
    810        break;
    811
    812    case SVGA_REG_WIDTH:
    813        ret = s->new_width ? s->new_width : surface_width(surface);
    814        break;
    815
    816    case SVGA_REG_HEIGHT:
    817        ret = s->new_height ? s->new_height : surface_height(surface);
    818        break;
    819
    820    case SVGA_REG_MAX_WIDTH:
    821        ret = SVGA_MAX_WIDTH;
    822        break;
    823
    824    case SVGA_REG_MAX_HEIGHT:
    825        ret = SVGA_MAX_HEIGHT;
    826        break;
    827
    828    case SVGA_REG_DEPTH:
    829        ret = (s->new_depth == 32) ? 24 : s->new_depth;
    830        break;
    831
    832    case SVGA_REG_BITS_PER_PIXEL:
    833    case SVGA_REG_HOST_BITS_PER_PIXEL:
    834        ret = s->new_depth;
    835        break;
    836
    837    case SVGA_REG_PSEUDOCOLOR:
    838        ret = 0x0;
    839        break;
    840
    841    case SVGA_REG_RED_MASK:
    842        pf = qemu_default_pixelformat(s->new_depth);
    843        ret = pf.rmask;
    844        break;
    845
    846    case SVGA_REG_GREEN_MASK:
    847        pf = qemu_default_pixelformat(s->new_depth);
    848        ret = pf.gmask;
    849        break;
    850
    851    case SVGA_REG_BLUE_MASK:
    852        pf = qemu_default_pixelformat(s->new_depth);
    853        ret = pf.bmask;
    854        break;
    855
    856    case SVGA_REG_BYTES_PER_LINE:
    857        if (s->new_width) {
    858            ret = (s->new_depth * s->new_width) / 8;
    859        } else {
    860            ret = surface_stride(surface);
    861        }
    862        break;
    863
    864    case SVGA_REG_FB_START: {
    865        struct pci_vmsvga_state_s *pci_vmsvga
    866            = container_of(s, struct pci_vmsvga_state_s, chip);
    867        ret = pci_get_bar_addr(PCI_DEVICE(pci_vmsvga), 1);
    868        break;
    869    }
    870
    871    case SVGA_REG_FB_OFFSET:
    872        ret = 0x0;
    873        break;
    874
    875    case SVGA_REG_VRAM_SIZE:
    876        ret = s->vga.vram_size; /* No physical VRAM besides the framebuffer */
    877        break;
    878
    879    case SVGA_REG_FB_SIZE:
    880        ret = s->vga.vram_size;
    881        break;
    882
    883    case SVGA_REG_CAPABILITIES:
    884        caps = SVGA_CAP_NONE;
    885#ifdef HW_RECT_ACCEL
    886        caps |= SVGA_CAP_RECT_COPY;
    887#endif
    888#ifdef HW_FILL_ACCEL
    889        caps |= SVGA_CAP_RECT_FILL;
    890#endif
    891#ifdef HW_MOUSE_ACCEL
    892        if (dpy_cursor_define_supported(s->vga.con)) {
    893            caps |= SVGA_CAP_CURSOR | SVGA_CAP_CURSOR_BYPASS_2 |
    894                    SVGA_CAP_CURSOR_BYPASS;
    895        }
    896#endif
    897        ret = caps;
    898        break;
    899
    900    case SVGA_REG_MEM_START: {
    901        struct pci_vmsvga_state_s *pci_vmsvga
    902            = container_of(s, struct pci_vmsvga_state_s, chip);
    903        ret = pci_get_bar_addr(PCI_DEVICE(pci_vmsvga), 2);
    904        break;
    905    }
    906
    907    case SVGA_REG_MEM_SIZE:
    908        ret = s->fifo_size;
    909        break;
    910
    911    case SVGA_REG_CONFIG_DONE:
    912        ret = s->config;
    913        break;
    914
    915    case SVGA_REG_SYNC:
    916    case SVGA_REG_BUSY:
    917        ret = s->syncing;
    918        break;
    919
    920    case SVGA_REG_GUEST_ID:
    921        ret = s->guest;
    922        break;
    923
    924    case SVGA_REG_CURSOR_ID:
    925        ret = s->cursor.id;
    926        break;
    927
    928    case SVGA_REG_CURSOR_X:
    929        ret = s->cursor.x;
    930        break;
    931
    932    case SVGA_REG_CURSOR_Y:
    933        ret = s->cursor.y;
    934        break;
    935
    936    case SVGA_REG_CURSOR_ON:
    937        ret = s->cursor.on;
    938        break;
    939
    940    case SVGA_REG_SCRATCH_SIZE:
    941        ret = s->scratch_size;
    942        break;
    943
    944    case SVGA_REG_MEM_REGS:
    945    case SVGA_REG_NUM_DISPLAYS:
    946    case SVGA_REG_PITCHLOCK:
    947    case SVGA_PALETTE_BASE ... SVGA_PALETTE_END:
    948        ret = 0;
    949        break;
    950
    951    default:
    952        if (s->index >= SVGA_SCRATCH_BASE &&
    953            s->index < SVGA_SCRATCH_BASE + s->scratch_size) {
    954            ret = s->scratch[s->index - SVGA_SCRATCH_BASE];
    955            break;
    956        }
    957        qemu_log_mask(LOG_GUEST_ERROR,
    958                      "%s: Bad register %02x\n", __func__, s->index);
    959        ret = 0;
    960        break;
    961    }
    962
    963    if (s->index >= SVGA_SCRATCH_BASE) {
    964        trace_vmware_scratch_read(s->index, ret);
    965    } else if (s->index >= SVGA_PALETTE_BASE) {
    966        trace_vmware_palette_read(s->index, ret);
    967    } else {
    968        trace_vmware_value_read(s->index, ret);
    969    }
    970    return ret;
    971}
    972
    973static void vmsvga_value_write(void *opaque, uint32_t address, uint32_t value)
    974{
    975    struct vmsvga_state_s *s = opaque;
    976
    977    if (s->index >= SVGA_SCRATCH_BASE) {
    978        trace_vmware_scratch_write(s->index, value);
    979    } else if (s->index >= SVGA_PALETTE_BASE) {
    980        trace_vmware_palette_write(s->index, value);
    981    } else {
    982        trace_vmware_value_write(s->index, value);
    983    }
    984    switch (s->index) {
    985    case SVGA_REG_ID:
    986        if (value == SVGA_ID_2 || value == SVGA_ID_1 || value == SVGA_ID_0) {
    987            s->svgaid = value;
    988        }
    989        break;
    990
    991    case SVGA_REG_ENABLE:
    992        s->enable = !!value;
    993        s->invalidated = 1;
    994        s->vga.hw_ops->invalidate(&s->vga);
    995        if (s->enable && s->config) {
    996            vga_dirty_log_stop(&s->vga);
    997        } else {
    998            vga_dirty_log_start(&s->vga);
    999        }
   1000        break;
   1001
   1002    case SVGA_REG_WIDTH:
   1003        if (value <= SVGA_MAX_WIDTH) {
   1004            s->new_width = value;
   1005            s->invalidated = 1;
   1006        } else {
   1007            qemu_log_mask(LOG_GUEST_ERROR,
   1008                          "%s: Bad width: %i\n", __func__, value);
   1009        }
   1010        break;
   1011
   1012    case SVGA_REG_HEIGHT:
   1013        if (value <= SVGA_MAX_HEIGHT) {
   1014            s->new_height = value;
   1015            s->invalidated = 1;
   1016        } else {
   1017            qemu_log_mask(LOG_GUEST_ERROR,
   1018                          "%s: Bad height: %i\n", __func__, value);
   1019        }
   1020        break;
   1021
   1022    case SVGA_REG_BITS_PER_PIXEL:
   1023        if (value != 32) {
   1024            qemu_log_mask(LOG_GUEST_ERROR,
   1025                          "%s: Bad bits per pixel: %i bits\n", __func__, value);
   1026            s->config = 0;
   1027            s->invalidated = 1;
   1028        }
   1029        break;
   1030
   1031    case SVGA_REG_CONFIG_DONE:
   1032        if (value) {
   1033            s->fifo = (uint32_t *) s->fifo_ptr;
   1034            vga_dirty_log_stop(&s->vga);
   1035        }
   1036        s->config = !!value;
   1037        break;
   1038
   1039    case SVGA_REG_SYNC:
   1040        s->syncing = 1;
   1041        vmsvga_fifo_run(s); /* Or should we just wait for update_display? */
   1042        break;
   1043
   1044    case SVGA_REG_GUEST_ID:
   1045        s->guest = value;
   1046#ifdef VERBOSE
   1047        if (value >= GUEST_OS_BASE && value < GUEST_OS_BASE +
   1048            ARRAY_SIZE(vmsvga_guest_id)) {
   1049            printf("%s: guest runs %s.\n", __func__,
   1050                   vmsvga_guest_id[value - GUEST_OS_BASE]);
   1051        }
   1052#endif
   1053        break;
   1054
   1055    case SVGA_REG_CURSOR_ID:
   1056        s->cursor.id = value;
   1057        break;
   1058
   1059    case SVGA_REG_CURSOR_X:
   1060        s->cursor.x = value;
   1061        break;
   1062
   1063    case SVGA_REG_CURSOR_Y:
   1064        s->cursor.y = value;
   1065        break;
   1066
   1067    case SVGA_REG_CURSOR_ON:
   1068        s->cursor.on |= (value == SVGA_CURSOR_ON_SHOW);
   1069        s->cursor.on &= (value != SVGA_CURSOR_ON_HIDE);
   1070#ifdef HW_MOUSE_ACCEL
   1071        if (value <= SVGA_CURSOR_ON_SHOW) {
   1072            dpy_mouse_set(s->vga.con, s->cursor.x, s->cursor.y, s->cursor.on);
   1073        }
   1074#endif
   1075        break;
   1076
   1077    case SVGA_REG_DEPTH:
   1078    case SVGA_REG_MEM_REGS:
   1079    case SVGA_REG_NUM_DISPLAYS:
   1080    case SVGA_REG_PITCHLOCK:
   1081    case SVGA_PALETTE_BASE ... SVGA_PALETTE_END:
   1082        break;
   1083
   1084    default:
   1085        if (s->index >= SVGA_SCRATCH_BASE &&
   1086                s->index < SVGA_SCRATCH_BASE + s->scratch_size) {
   1087            s->scratch[s->index - SVGA_SCRATCH_BASE] = value;
   1088            break;
   1089        }
   1090        qemu_log_mask(LOG_GUEST_ERROR,
   1091                      "%s: Bad register %02x\n", __func__, s->index);
   1092    }
   1093}
   1094
   1095static uint32_t vmsvga_bios_read(void *opaque, uint32_t address)
   1096{
   1097    printf("%s: what are we supposed to return?\n", __func__);
   1098    return 0xcafe;
   1099}
   1100
   1101static void vmsvga_bios_write(void *opaque, uint32_t address, uint32_t data)
   1102{
   1103    printf("%s: what are we supposed to do with (%08x)?\n", __func__, data);
   1104}
   1105
   1106static inline void vmsvga_check_size(struct vmsvga_state_s *s)
   1107{
   1108    DisplaySurface *surface = qemu_console_surface(s->vga.con);
   1109
   1110    if (s->new_width != surface_width(surface) ||
   1111        s->new_height != surface_height(surface) ||
   1112        s->new_depth != surface_bits_per_pixel(surface)) {
   1113        int stride = (s->new_depth * s->new_width) / 8;
   1114        pixman_format_code_t format =
   1115            qemu_default_pixman_format(s->new_depth, true);
   1116        trace_vmware_setmode(s->new_width, s->new_height, s->new_depth);
   1117        surface = qemu_create_displaysurface_from(s->new_width, s->new_height,
   1118                                                  format, stride,
   1119                                                  s->vga.vram_ptr);
   1120        dpy_gfx_replace_surface(s->vga.con, surface);
   1121        s->invalidated = 1;
   1122    }
   1123}
   1124
   1125static void vmsvga_update_display(void *opaque)
   1126{
   1127    struct vmsvga_state_s *s = opaque;
   1128
   1129    if (!s->enable || !s->config) {
   1130        /* in standard vga mode */
   1131        s->vga.hw_ops->gfx_update(&s->vga);
   1132        return;
   1133    }
   1134
   1135    vmsvga_check_size(s);
   1136
   1137    vmsvga_fifo_run(s);
   1138    vmsvga_update_rect_flush(s);
   1139
   1140    if (s->invalidated) {
   1141        s->invalidated = 0;
   1142        dpy_gfx_update_full(s->vga.con);
   1143    }
   1144}
   1145
   1146static void vmsvga_reset(DeviceState *dev)
   1147{
   1148    struct pci_vmsvga_state_s *pci = VMWARE_SVGA(dev);
   1149    struct vmsvga_state_s *s = &pci->chip;
   1150
   1151    s->index = 0;
   1152    s->enable = 0;
   1153    s->config = 0;
   1154    s->svgaid = SVGA_ID;
   1155    s->cursor.on = 0;
   1156    s->redraw_fifo_first = 0;
   1157    s->redraw_fifo_last = 0;
   1158    s->syncing = 0;
   1159
   1160    vga_dirty_log_start(&s->vga);
   1161}
   1162
   1163static void vmsvga_invalidate_display(void *opaque)
   1164{
   1165    struct vmsvga_state_s *s = opaque;
   1166    if (!s->enable) {
   1167        s->vga.hw_ops->invalidate(&s->vga);
   1168        return;
   1169    }
   1170
   1171    s->invalidated = 1;
   1172}
   1173
   1174static void vmsvga_text_update(void *opaque, console_ch_t *chardata)
   1175{
   1176    struct vmsvga_state_s *s = opaque;
   1177
   1178    if (s->vga.hw_ops->text_update) {
   1179        s->vga.hw_ops->text_update(&s->vga, chardata);
   1180    }
   1181}
   1182
   1183static int vmsvga_post_load(void *opaque, int version_id)
   1184{
   1185    struct vmsvga_state_s *s = opaque;
   1186
   1187    s->invalidated = 1;
   1188    if (s->config) {
   1189        s->fifo = (uint32_t *) s->fifo_ptr;
   1190    }
   1191    return 0;
   1192}
   1193
   1194static const VMStateDescription vmstate_vmware_vga_internal = {
   1195    .name = "vmware_vga_internal",
   1196    .version_id = 0,
   1197    .minimum_version_id = 0,
   1198    .post_load = vmsvga_post_load,
   1199    .fields = (VMStateField[]) {
   1200        VMSTATE_INT32_EQUAL(new_depth, struct vmsvga_state_s, NULL),
   1201        VMSTATE_INT32(enable, struct vmsvga_state_s),
   1202        VMSTATE_INT32(config, struct vmsvga_state_s),
   1203        VMSTATE_INT32(cursor.id, struct vmsvga_state_s),
   1204        VMSTATE_INT32(cursor.x, struct vmsvga_state_s),
   1205        VMSTATE_INT32(cursor.y, struct vmsvga_state_s),
   1206        VMSTATE_INT32(cursor.on, struct vmsvga_state_s),
   1207        VMSTATE_INT32(index, struct vmsvga_state_s),
   1208        VMSTATE_VARRAY_INT32(scratch, struct vmsvga_state_s,
   1209                             scratch_size, 0, vmstate_info_uint32, uint32_t),
   1210        VMSTATE_INT32(new_width, struct vmsvga_state_s),
   1211        VMSTATE_INT32(new_height, struct vmsvga_state_s),
   1212        VMSTATE_UINT32(guest, struct vmsvga_state_s),
   1213        VMSTATE_UINT32(svgaid, struct vmsvga_state_s),
   1214        VMSTATE_INT32(syncing, struct vmsvga_state_s),
   1215        VMSTATE_UNUSED(4), /* was fb_size */
   1216        VMSTATE_END_OF_LIST()
   1217    }
   1218};
   1219
   1220static const VMStateDescription vmstate_vmware_vga = {
   1221    .name = "vmware_vga",
   1222    .version_id = 0,
   1223    .minimum_version_id = 0,
   1224    .fields = (VMStateField[]) {
   1225        VMSTATE_PCI_DEVICE(parent_obj, struct pci_vmsvga_state_s),
   1226        VMSTATE_STRUCT(chip, struct pci_vmsvga_state_s, 0,
   1227                       vmstate_vmware_vga_internal, struct vmsvga_state_s),
   1228        VMSTATE_END_OF_LIST()
   1229    }
   1230};
   1231
   1232static const GraphicHwOps vmsvga_ops = {
   1233    .invalidate  = vmsvga_invalidate_display,
   1234    .gfx_update  = vmsvga_update_display,
   1235    .text_update = vmsvga_text_update,
   1236};
   1237
   1238static void vmsvga_init(DeviceState *dev, struct vmsvga_state_s *s,
   1239                        MemoryRegion *address_space, MemoryRegion *io)
   1240{
   1241    s->scratch_size = SVGA_SCRATCH_SIZE;
   1242    s->scratch = g_malloc(s->scratch_size * 4);
   1243
   1244    s->vga.con = graphic_console_init(dev, 0, &vmsvga_ops, s);
   1245
   1246    s->fifo_size = SVGA_FIFO_SIZE;
   1247    memory_region_init_ram(&s->fifo_ram, NULL, "vmsvga.fifo", s->fifo_size,
   1248                           &error_fatal);
   1249    s->fifo_ptr = memory_region_get_ram_ptr(&s->fifo_ram);
   1250
   1251    vga_common_init(&s->vga, OBJECT(dev));
   1252    vga_init(&s->vga, OBJECT(dev), address_space, io, true);
   1253    vmstate_register(NULL, 0, &vmstate_vga_common, &s->vga);
   1254    s->new_depth = 32;
   1255}
   1256
   1257static uint64_t vmsvga_io_read(void *opaque, hwaddr addr, unsigned size)
   1258{
   1259    struct vmsvga_state_s *s = opaque;
   1260
   1261    switch (addr) {
   1262    case SVGA_IO_MUL * SVGA_INDEX_PORT: return vmsvga_index_read(s, addr);
   1263    case SVGA_IO_MUL * SVGA_VALUE_PORT: return vmsvga_value_read(s, addr);
   1264    case SVGA_IO_MUL * SVGA_BIOS_PORT: return vmsvga_bios_read(s, addr);
   1265    default: return -1u;
   1266    }
   1267}
   1268
   1269static void vmsvga_io_write(void *opaque, hwaddr addr,
   1270                            uint64_t data, unsigned size)
   1271{
   1272    struct vmsvga_state_s *s = opaque;
   1273
   1274    switch (addr) {
   1275    case SVGA_IO_MUL * SVGA_INDEX_PORT:
   1276        vmsvga_index_write(s, addr, data);
   1277        break;
   1278    case SVGA_IO_MUL * SVGA_VALUE_PORT:
   1279        vmsvga_value_write(s, addr, data);
   1280        break;
   1281    case SVGA_IO_MUL * SVGA_BIOS_PORT:
   1282        vmsvga_bios_write(s, addr, data);
   1283        break;
   1284    }
   1285}
   1286
   1287static const MemoryRegionOps vmsvga_io_ops = {
   1288    .read = vmsvga_io_read,
   1289    .write = vmsvga_io_write,
   1290    .endianness = DEVICE_LITTLE_ENDIAN,
   1291    .valid = {
   1292        .min_access_size = 4,
   1293        .max_access_size = 4,
   1294        .unaligned = true,
   1295    },
   1296    .impl = {
   1297        .unaligned = true,
   1298    },
   1299};
   1300
   1301static void pci_vmsvga_realize(PCIDevice *dev, Error **errp)
   1302{
   1303    struct pci_vmsvga_state_s *s = VMWARE_SVGA(dev);
   1304
   1305    dev->config[PCI_CACHE_LINE_SIZE] = 0x08;
   1306    dev->config[PCI_LATENCY_TIMER] = 0x40;
   1307    dev->config[PCI_INTERRUPT_LINE] = 0xff;          /* End */
   1308
   1309    memory_region_init_io(&s->io_bar, OBJECT(dev), &vmsvga_io_ops, &s->chip,
   1310                          "vmsvga-io", 0x10);
   1311    memory_region_set_flush_coalesced(&s->io_bar);
   1312    pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->io_bar);
   1313
   1314    vmsvga_init(DEVICE(dev), &s->chip,
   1315                pci_address_space(dev), pci_address_space_io(dev));
   1316
   1317    pci_register_bar(dev, 1, PCI_BASE_ADDRESS_MEM_PREFETCH,
   1318                     &s->chip.vga.vram);
   1319    pci_register_bar(dev, 2, PCI_BASE_ADDRESS_MEM_PREFETCH,
   1320                     &s->chip.fifo_ram);
   1321}
   1322
   1323static Property vga_vmware_properties[] = {
   1324    DEFINE_PROP_UINT32("vgamem_mb", struct pci_vmsvga_state_s,
   1325                       chip.vga.vram_size_mb, 16),
   1326    DEFINE_PROP_BOOL("global-vmstate", struct pci_vmsvga_state_s,
   1327                     chip.vga.global_vmstate, false),
   1328    DEFINE_PROP_END_OF_LIST(),
   1329};
   1330
   1331static void vmsvga_class_init(ObjectClass *klass, void *data)
   1332{
   1333    DeviceClass *dc = DEVICE_CLASS(klass);
   1334    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
   1335
   1336    k->realize = pci_vmsvga_realize;
   1337    k->romfile = "vgabios-vmware.bin";
   1338    k->vendor_id = PCI_VENDOR_ID_VMWARE;
   1339    k->device_id = SVGA_PCI_DEVICE_ID;
   1340    k->class_id = PCI_CLASS_DISPLAY_VGA;
   1341    k->subsystem_vendor_id = PCI_VENDOR_ID_VMWARE;
   1342    k->subsystem_id = SVGA_PCI_DEVICE_ID;
   1343    dc->reset = vmsvga_reset;
   1344    dc->vmsd = &vmstate_vmware_vga;
   1345    device_class_set_props(dc, vga_vmware_properties);
   1346    dc->hotpluggable = false;
   1347    set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
   1348}
   1349
   1350static const TypeInfo vmsvga_info = {
   1351    .name          = TYPE_VMWARE_SVGA,
   1352    .parent        = TYPE_PCI_DEVICE,
   1353    .instance_size = sizeof(struct pci_vmsvga_state_s),
   1354    .class_init    = vmsvga_class_init,
   1355    .interfaces = (InterfaceInfo[]) {
   1356        { INTERFACE_CONVENTIONAL_PCI_DEVICE },
   1357        { },
   1358    },
   1359};
   1360
   1361static void vmsvga_register_types(void)
   1362{
   1363    type_register_static(&vmsvga_info);
   1364}
   1365
   1366type_init(vmsvga_register_types)