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[Qemu-devel] [PATCH 13/14] Allow cirrus VGA to be initialized multiple t
From: |
Zachary Amsden |
Subject: |
[Qemu-devel] [PATCH 13/14] Allow cirrus VGA to be initialized multiple times; only the first init takes the ISA memory region and hardware I/O ports. |
Date: |
Thu, 30 Jul 2009 00:15:11 -1000 |
Signed-off-by: Zachary Amsden <address@hidden>
---
hw/cirrus_vga.c | 37 +++++++++++++++++++++----------------
1 files changed, 21 insertions(+), 16 deletions(-)
diff --git a/hw/cirrus_vga.c b/hw/cirrus_vga.c
index d7874f0..c0cf088 100644
--- a/hw/cirrus_vga.c
+++ b/hw/cirrus_vga.c
@@ -3153,6 +3153,7 @@ static void cirrus_init_common(CirrusVGAState * s, int
device_id, int is_pci)
{
int i;
static int inited;
+ static int idx = 0;
if (!inited) {
inited = 1;
@@ -3181,25 +3182,28 @@ static void cirrus_init_common(CirrusVGAState * s, int
device_id, int is_pci)
s->bustype = CIRRUS_BUSTYPE_ISA;
}
- register_ioport_write(0x3c0, 16, 1, vga_ioport_write, s);
+ if (idx == 0) {
+ register_ioport_write(0x3c0, 16, 1, vga_ioport_write, s);
- register_ioport_write(0x3b4, 2, 1, vga_ioport_write, s);
- register_ioport_write(0x3d4, 2, 1, vga_ioport_write, s);
- register_ioport_write(0x3ba, 1, 1, vga_ioport_write, s);
- register_ioport_write(0x3da, 1, 1, vga_ioport_write, s);
+ register_ioport_write(0x3b4, 2, 1, vga_ioport_write, s);
+ register_ioport_write(0x3d4, 2, 1, vga_ioport_write, s);
+ register_ioport_write(0x3ba, 1, 1, vga_ioport_write, s);
+ register_ioport_write(0x3da, 1, 1, vga_ioport_write, s);
- register_ioport_read(0x3c0, 16, 1, vga_ioport_read, s);
+ register_ioport_read(0x3c0, 16, 1, vga_ioport_read, s);
- register_ioport_read(0x3b4, 2, 1, vga_ioport_read, s);
- register_ioport_read(0x3d4, 2, 1, vga_ioport_read, s);
- register_ioport_read(0x3ba, 1, 1, vga_ioport_read, s);
- register_ioport_read(0x3da, 1, 1, vga_ioport_read, s);
+ register_ioport_read(0x3b4, 2, 1, vga_ioport_read, s);
+ register_ioport_read(0x3d4, 2, 1, vga_ioport_read, s);
+ register_ioport_read(0x3ba, 1, 1, vga_ioport_read, s);
+ register_ioport_read(0x3da, 1, 1, vga_ioport_read, s);
+ s->vga.vram_phys = isa_mem_base + VGA_ISA_ADDRESS;
- s->vga.vram_phys = isa_mem_base + VGA_ISA_ADDRESS;
- s->vga.vga_io_memory = cpu_register_io_memory(cirrus_vga_mem_read,
- cirrus_vga_mem_write, s);
- cpu_register_physical_memory(s->vga.vram_phys, VGA_VRAM_SIZE,
s->vga.vga_io_memory);
- qemu_register_coalesced_mmio(s->vga.vram_phys, VGA_VRAM_SIZE);
+ s->vga.vga_io_memory = cpu_register_io_memory(cirrus_vga_mem_read,
+ cirrus_vga_mem_write, s);
+ cpu_register_physical_memory(s->vga.vram_phys, VGA_VRAM_SIZE,
+ s->vga.vga_io_memory);
+ qemu_register_coalesced_mmio(s->vga.vram_phys, VGA_VRAM_SIZE);
+ }
/* I/O handler for LFB */
s->cirrus_linear_io_addr =
@@ -3229,7 +3233,8 @@ static void cirrus_init_common(CirrusVGAState * s, int
device_id, int is_pci)
qemu_register_reset(cirrus_reset, 0, s);
cirrus_reset(s);
- register_savevm("cirrus_vga", 0, 2, cirrus_vga_save, cirrus_vga_load, s);
+ register_savevm("cirrus_vga", idx, 2, cirrus_vga_save, cirrus_vga_load, s);
+ idx++;
}
/***************************************
--
1.6.2.5
- [Qemu-devel] [PATCH 03/14] When using stdio monitor and VNC display, one can set or clear a VNC password; this should set or turn off VNC authentication as well., (continued)
- [Qemu-devel] [PATCH 03/14] When using stdio monitor and VNC display, one can set or clear a VNC password; this should set or turn off VNC authentication as well., Zachary Amsden, 2009/07/30
- [Qemu-devel] [PATCH 04/14] Clean up VGA type selection; far too many variables being used to track one state leads to confusion if new variables are added., Zachary Amsden, 2009/07/30
- [Qemu-devel] [PATCH 05/14] Change cpu_phys mem callback to use [offset, size) bounds instead of [start, end)., Zachary Amsden, 2009/07/30
- [Qemu-devel] [PATCH 06/14] Split VGA ioport init into a helper function., Zachary Amsden, 2009/07/30
- [Qemu-devel] [PATCH 07/14] Code motion; make mm VGA init function more like standard vga init function. Add missing vga_reset hook to vga_mm_init., Zachary Amsden, 2009/07/30
- [Qemu-devel] [PATCH 08/14] Make VGA vram offset passed into vga_mm_init absolute. Since this is a function of the platform, it makes sense to have it be explicitly known in the platform layer rather than hardcoded inside the vga code., Zachary Amsden, 2009/07/30
- [Qemu-devel] [PATCH 09/14] Further transformation: use common vga_init() which allows either I/O port or memory mapped based control., Zachary Amsden, 2009/07/30
- [Qemu-devel] [PATCH 10/14] Stash VGA physical address and use it in KVM callbacks. Stash VGA physical pointer in cirrus vga as well., Zachary Amsden, 2009/07/30
- [Qemu-devel] [PATCH 11/14] Add some defined constants for VGA offsets., Zachary Amsden, 2009/07/30
- [Qemu-devel] [PATCH 12/14] Add a PCI BAR for the VGA ROM which is mapped into cirrus_vga. This makes the cirrus device complete under some X servers which require the V_BIOS mapping., Zachary Amsden, 2009/07/30
- [Qemu-devel] [PATCH 13/14] Allow cirrus VGA to be initialized multiple times; only the first init takes the ISA memory region and hardware I/O ports.,
Zachary Amsden <=
- [Qemu-devel] [PATCH 14/14] Atrocious and horrendous patch to demonstrate multiple SDL displays. The multiple SDL displays can be seen on one console, using ctrl-alt-1/2 to switch between them., Zachary Amsden, 2009/07/30
- [Qemu-devel] Re: [PATCH 07/14] Code motion; make mm VGA init function more like standard vga init function. Add missing vga_reset hook to vga_mm_init., Jan Kiszka, 2009/07/30
- [Qemu-devel] Re: [PATCH 05/14] Change cpu_phys mem callback to use [offset, size) bounds instead of [start, end)., Jan Kiszka, 2009/07/30
Re: [Qemu-devel] Various VGA / VNC fixes and cleanups to prep for multiheaded graphics, Daniel P. Berrange, 2009/07/30