diff options
| -rw-r--r-- | hw/display/cirrus_vga.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/hw/display/cirrus_vga.c b/hw/display/cirrus_vga.c index 6ffe64fdcc..326d511e60 100644 --- a/hw/display/cirrus_vga.c +++ b/hw/display/cirrus_vga.c @@ -205,6 +205,7 @@ typedef struct CirrusVGAState { uint32_t cirrus_bank_base[2]; uint32_t cirrus_bank_limit[2]; uint8_t cirrus_hidden_palette[48]; + bool enable_blitter; int cirrus_blt_pixelwidth; int cirrus_blt_width; int cirrus_blt_height; @@ -960,6 +961,10 @@ static void cirrus_bitblt_start(CirrusVGAState * s) { uint8_t blt_rop; + if (!s->enable_blitter) { + goto bitblt_ignore; + } + s->vga.gr[0x31] |= CIRRUS_BLT_BUSY; s->cirrus_blt_width = (s->vga.gr[0x20] | (s->vga.gr[0x21] << 8)) + 1; @@ -3024,6 +3029,8 @@ static void isa_cirrus_vga_realizefn(DeviceState *dev, Error **errp) static Property isa_cirrus_vga_properties[] = { DEFINE_PROP_UINT32("vgamem_mb", struct ISACirrusVGAState, cirrus_vga.vga.vram_size_mb, 4), + DEFINE_PROP_BOOL("blitter", struct ISACirrusVGAState, + cirrus_vga.enable_blitter, true), DEFINE_PROP_END_OF_LIST(), }; @@ -3093,6 +3100,8 @@ static void pci_cirrus_vga_realize(PCIDevice *dev, Error **errp) static Property pci_vga_cirrus_properties[] = { DEFINE_PROP_UINT32("vgamem_mb", struct PCICirrusVGAState, cirrus_vga.vga.vram_size_mb, 4), + DEFINE_PROP_BOOL("blitter", struct PCICirrusVGAState, + cirrus_vga.enable_blitter, true), DEFINE_PROP_END_OF_LIST(), }; |