[patch 1/6] cirrus_vga: allow configurable vram size

Marcelo Tosatti
2012-10-03T10:55:40Z

[-- Attachment #1: cirrus-add-configurable-memsize --]
[-- Type: text/plain, Size: 2982 bytes --]

Allow RAM size to be configurable for cirrus, to allow migration
compatibility from qemu-kvm.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

Index: qemu-compat-kvm/hw/cirrus_vga.c
===================================================================
--- qemu-compat-kvm.orig/hw/cirrus_vga.c
+++ qemu-compat-kvm/hw/cirrus_vga.c
@@ -43,8 +43,6 @@
//#define DEBUG_CIRRUS
//#define DEBUG_BITBLT

-#define VGA_RAM_SIZE (8192 * 1024)
-
/***************************************
*
* definitions
@@ -2853,7 +2851,8 @@ static void cirrus_init_common(CirrusVGA

/* I/O handler for LFB */
memory_region_init_io(&s->cirrus_linear_io, &cirrus_linear_io_ops, s,
- "cirrus-linear-io", VGA_RAM_SIZE);
+ "cirrus-linear-io", s->vga.vram_size_mb
+ * 1024 * 1024);

/* I/O handler for LFB */
memory_region_init_io(&s->cirrus_linear_bitblt_io,
@@ -2893,7 +2892,6 @@ static int vga_initfn(ISADevice *dev)
ISACirrusVGAState *d = DO_UPCAST(ISACirrusVGAState, dev, dev);
VGACommonState *s = &d->cirrus_vga.vga;

- s->vram_size_mb = VGA_RAM_SIZE >> 20;
vga_common_init(s);
cirrus_init_common(&d->cirrus_vga, CIRRUS_ID_CLGD5430, 0,
isa_address_space(dev));
@@ -2906,6 +2904,12 @@ static int vga_initfn(ISADevice *dev)
return 0;
}

+static Property isa_vga_cirrus_properties[] = {
+ DEFINE_PROP_UINT32("vgamem_mb", struct ISACirrusVGAState,
+ cirrus_vga.vga.vram_size_mb, 8),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
static void isa_cirrus_vga_class_init(ObjectClass *klass, void *data)
{
ISADeviceClass *k = ISA_DEVICE_CLASS(klass);
@@ -2913,6 +2917,7 @@ static void isa_cirrus_vga_class_init(Ob

dc->vmsd = &vmstate_cirrus_vga;
k->init = vga_initfn;
+ dc->props = isa_vga_cirrus_properties;
}

static TypeInfo isa_cirrus_vga_info = {
@@ -2936,7 +2941,6 @@ static int pci_cirrus_vga_initfn(PCIDevi
int16_t device_id = pc->device_id;

/* setup VGA */
- s->vga.vram_size_mb = VGA_RAM_SIZE >> 20;
vga_common_init(&s->vga);
cirrus_init_common(s, device_id, 1, pci_address_space(dev));
s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,
@@ -2968,6 +2972,12 @@ DeviceState *pci_cirrus_vga_init(PCIBus
return &pci_create_simple(bus, -1, "cirrus-vga")->qdev;
}

+static Property pci_vga_cirrus_properties[] = {
+ DEFINE_PROP_UINT32("vgamem_mb", struct PCICirrusVGAState,
+ cirrus_vga.vga.vram_size_mb, 8),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
static void cirrus_vga_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
@@ -2981,6 +2991,7 @@ static void cirrus_vga_class_init(Object
k->class_id = PCI_CLASS_DISPLAY_VGA;
dc->desc = "Cirrus CLGD 54xx VGA";
dc->vmsd = &vmstate_pci_cirrus_vga;
+ dc->props = pci_vga_cirrus_properties;
}

static TypeInfo cirrus_vga_info = {