According to the documentation drivers using this device should read FB_SIZE before enabling the device to know what memory to map. This would not work if we return 0 before enabled. The docs also mention reading SVGA_REG_DEPTH but not writing it. (Only SVGA_REG_BITS_PER_PIXEL can be written but we don't really support that either.)
Signed-off-by: BALATON Zoltan <bala...@eik.bme.hu> --- hw/vmware_vga.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) v5: rebased again diff --git a/hw/vmware_vga.c b/hw/vmware_vga.c index 240443b..038994e 100644 --- a/hw/vmware_vga.c +++ b/hw/vmware_vga.c @@ -31,13 +31,14 @@ #define HW_FILL_ACCEL #define HW_MOUSE_ACCEL -# include "vga_int.h" +#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 depth; int enable; int config; struct { @@ -55,7 +56,6 @@ struct vmsvga_state_s { uint32_t guest; uint32_t svgaid; int syncing; - int fb_size; MemoryRegion fifo_ram; uint8_t *fifo_ptr; @@ -756,10 +756,10 @@ static uint32_t vmsvga_value_read(void *opaque, uint32_t address) return 0x0; case SVGA_REG_VRAM_SIZE: - return s->vga.vram_size; + return s->vga.vram_size; /* No physical VRAM besides the framebuffer */ case SVGA_REG_FB_SIZE: - return s->fb_size; + return s->vga.vram_size; case SVGA_REG_CAPABILITIES: caps = SVGA_CAP_NONE; @@ -848,7 +848,6 @@ static void vmsvga_value_write(void *opaque, uint32_t address, uint32_t value) s->invalidated = 1; s->vga.invalidate(&s->vga); if (s->enable) { - s->fb_size = ((s->depth + 7) >> 3) * s->new_width * s->new_height; vga_dirty_log_stop(&s->vga); } else { vga_dirty_log_start(&s->vga); @@ -873,10 +872,9 @@ static void vmsvga_value_write(void *opaque, uint32_t address, uint32_t value) } break; - case SVGA_REG_DEPTH: case SVGA_REG_BITS_PER_PIXEL: if (value != ds_get_bits_per_pixel(s->vga.ds)) { - printf("%s: Bad colour depth: %i bits\n", __func__, value); + printf("%s: Bad bits per pixel: %i bits\n", __func__, value); s->config = 0; } break; @@ -939,6 +937,7 @@ static void vmsvga_value_write(void *opaque, uint32_t address, uint32_t value) #endif break; + case SVGA_REG_DEPTH: case SVGA_REG_MEM_REGS: case SVGA_REG_NUM_DISPLAYS: case SVGA_REG_PITCHLOCK: @@ -1077,7 +1076,7 @@ static const VMStateDescription vmstate_vmware_vga_internal = { .minimum_version_id_old = 0, .post_load = vmsvga_post_load, .fields = (VMStateField[]) { - VMSTATE_INT32_EQUAL(depth, struct vmsvga_state_s), + VMSTATE_UNUSED(4), /* was depth */ VMSTATE_INT32(enable, struct vmsvga_state_s), VMSTATE_INT32(config, struct vmsvga_state_s), VMSTATE_INT32(cursor.id, struct vmsvga_state_s), @@ -1092,7 +1091,7 @@ static const VMStateDescription vmstate_vmware_vga_internal = { VMSTATE_UINT32(guest, struct vmsvga_state_s), VMSTATE_UINT32(svgaid, struct vmsvga_state_s), VMSTATE_INT32(syncing, struct vmsvga_state_s), - VMSTATE_INT32(fb_size, struct vmsvga_state_s), + VMSTATE_UNUSED(4), /* was fb_size */ VMSTATE_END_OF_LIST() } }; -- 1.7.10
