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-rw-r--r--hw/display/qxl.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/hw/display/qxl.c b/hw/display/qxl.c
index 6e9079783e..92f2d5025d 100644
--- a/hw/display/qxl.c
+++ b/hw/display/qxl.c
@@ -370,6 +370,8 @@ static void init_qxl_rom(PCIQXLDevice *d)
num_pages -= surface0_area_size;
num_pages = num_pages / QXL_PAGE_SIZE;
+ assert(ram_header_size + surface0_area_size <= d->vga.vram_size);
+
rom->draw_area_offset = cpu_to_le32(0);
rom->surface0_area_size = cpu_to_le32(surface0_area_size);
rom->pages_offset = cpu_to_le32(surface0_area_size);
@@ -1883,6 +1885,12 @@ static void qxl_init_ramsize(PCIQXLDevice *qxl)
if (qxl->vgamem_size_mb < 8) {
qxl->vgamem_size_mb = 8;
}
+ /* XXX: we round vgamem_size_mb up to a nearest power of two and it must be
+ * less than vga_common_init()'s maximum on qxl->vga.vram_size (512 now).
+ */
+ if (qxl->vgamem_size_mb > 256) {
+ qxl->vgamem_size_mb = 256;
+ }
qxl->vgamem_size = qxl->vgamem_size_mb * 1024 * 1024;
/* vga ram (bar 0, total) */