From 19403a68fb8eaefb2e1245b6a8384d3a3ffa7ca0 Mon Sep 17 00:00:00 2001
From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Fri, 5 Oct 2012 14:51:39 -0300
Subject: cirrus_vga: allow configurable vram size

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

Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
---
 hw/cirrus_vga.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

(limited to 'hw')

diff --git a/hw/cirrus_vga.c b/hw/cirrus_vga.c
index e4af2e9ded..9bef96e6d7 100644
--- a/hw/cirrus_vga.c
+++ b/hw/cirrus_vga.c
@@ -42,8 +42,6 @@
 //#define DEBUG_CIRRUS
 //#define DEBUG_BITBLT
 
-#define VGA_RAM_SIZE (8192 * 1024)
-
 /***************************************
  *
  *  definitions
@@ -2856,7 +2854,8 @@ static void cirrus_init_common(CirrusVGAState * s, int device_id, int is_pci,
 
     /* 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);
     memory_region_set_flush_coalesced(&s->cirrus_linear_io);
 
     /* I/O handler for LFB */
@@ -2899,7 +2898,6 @@ 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));
@@ -2912,6 +2910,12 @@ 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);
@@ -2919,6 +2923,7 @@ static void isa_cirrus_vga_class_init(ObjectClass *klass, void *data)
 
     dc->vmsd  = &vmstate_cirrus_vga;
     k->init   = vga_initfn;
+    dc->props = isa_vga_cirrus_properties;
 }
 
 static TypeInfo isa_cirrus_vga_info = {
@@ -2942,7 +2947,6 @@ static int pci_cirrus_vga_initfn(PCIDevice *dev)
      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,
@@ -2969,6 +2973,12 @@ static int pci_cirrus_vga_initfn(PCIDevice *dev)
      return 0;
 }
 
+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);
@@ -2982,6 +2992,7 @@ static void cirrus_vga_class_init(ObjectClass *klass, void *data)
     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 = {
-- 
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