* [Qemu-devel] [PATCH] qemu: change pci mapping to start from 0xc000000
@ 2009-01-18 5:29 Izik Eidus
2009-01-18 16:02 ` Jean-Christophe PLAGNIOL-VILLARD
0 siblings, 1 reply; 3+ messages in thread
From: Izik Eidus @ 2009-01-18 5:29 UTC (permalink / raw)
To: qemu-devel
changing the pci mapping to start from 0xc000000 give much more
memory resources to pci devices inside qemu.
note: none pea guests wont be able to see more than 3Giga of ram
but it doesnt seems like a problem.
Signed-off-by: Izik Eidus <ieidus@redhat.com>
---
hw/pc.c | 6 +-
hw/vga_int.h | 2 +-
hw/vmware_vga.c | 4 +-
...ge-pci-mem-address-to-start-at-0xc0000000.patch | 67
++++++++++++++++++++
pc-bios/bios-pq/series | 1 +
...hange-vbe-mapping-to-start-from-0xc000000.patch | 41 ++++++++++++
pc-bios/vgabios-pq/series | 1 +
7 files changed, 116 insertions(+), 6 deletions(-)
create mode 100644
pc-bios/bios-pq/0001-bios-change-pci-mem-address-to-start-at-0xc0000000.patch
create mode 100644
pc-bios/vgabios-pq/0001-vga-bios-change-vbe-mapping-to-start-from-0xc000000.patch
diff --git a/hw/pc.c b/hw/pc.c
index dd5fb8f..cfe30cc 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -771,9 +771,9 @@ static void pc_init1(ram_addr_t ram_size, int
vga_ram_size,
BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
BlockDriverState *fd[MAX_FD];
- if (ram_size >= 0xe0000000 ) {
- above_4g_mem_size = ram_size - 0xe0000000;
- below_4g_mem_size = 0xe0000000;
+ if (ram_size >= 0xc0000000 ) {
+ above_4g_mem_size = ram_size - 0xc0000000;
+ below_4g_mem_size = 0xc0000000;
} else {
below_4g_mem_size = ram_size;
}
diff --git a/hw/vga_int.h b/hw/vga_int.h
index f97e98f..57f20bf 100644
--- a/hw/vga_int.h
+++ b/hw/vga_int.h
@@ -59,7 +59,7 @@
#define VBE_DISPI_LFB_ENABLED 0x40
#define VBE_DISPI_NOCLEARMEM 0x80
-#define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000
+#define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xC0000000
#ifdef CONFIG_BOCHS_VBE
diff --git a/hw/vmware_vga.c b/hw/vmware_vga.c
index 950a98c..1110f99 100644
--- a/hw/vmware_vga.c
+++ b/hw/vmware_vga.c
@@ -118,14 +118,14 @@ struct pci_vmsvga_state_s {
# define SVGA_IO_BASE SVGA_LEGACY_BASE_PORT
# define SVGA_IO_MUL 1
# define SVGA_FIFO_SIZE 0x10000
-# define SVGA_MEM_BASE 0xe0000000
+# define SVGA_MEM_BASE 0xc0000000
# define SVGA_PCI_DEVICE_ID PCI_DEVICE_ID_VMWARE_SVGA2
#else
# define SVGA_ID SVGA_ID_1
# define SVGA_IO_BASE SVGA_LEGACY_BASE_PORT
# define SVGA_IO_MUL 4
# define SVGA_FIFO_SIZE 0x10000
-# define SVGA_MEM_BASE 0xe0000000
+# define SVGA_MEM_BASE 0xc0000000
# define SVGA_PCI_DEVICE_ID PCI_DEVICE_ID_VMWARE_SVGA
#endif
diff --git
a/pc-bios/bios-pq/0001-bios-change-pci-mem-address-to-start-at-0xc0000000.patch
b/pc-bios/bios-pq/0001-bios-change-pci-mem-address-to-start-at-0xc0000000.patch
new file mode 100644
index 0000000..d6fd42f
--- /dev/null
+++
b/pc-bios/bios-pq/0001-bios-change-pci-mem-address-to-start-at-0xc0000000.patch
@@ -0,0 +1,67 @@
+From 7841b724e744b1790b1d4b29a1cc42a05b04d2c8 Mon Sep 17 00:00:00 2001
+From: izike <izike@home-4.localdomain>
+Date: Sun, 18 Jan 2009 07:15:40 +0200
+Subject: [PATCH] bios: change pci mem addr to start at 0xc0000000 +
0x1000000
+ changing the bios to start at 0xc0000000 + 0x1000000 instead of
+ 0xf0000000 is needed in order to increase the pci mem hole
+
+Signed-off-by: Izik Eidus <ieidus@redhat.com>
+---
+ bios/acpi-dsdt.dsl | 2 +-
+ bios/rombios.c | 2 +-
+ bios/rombios32.c | 6 +++---
+ 3 files changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/bios/acpi-dsdt.dsl b/bios/acpi-dsdt.dsl
+index a5bc8b3..4249506 100644
+--- a/bios/acpi-dsdt.dsl
++++ b/bios/acpi-dsdt.dsl
+@@ -123,7 +123,7 @@ DefinitionBlock (
+ ,, , AddressRangeMemory, TypeStatic)
+ DWordMemory (ResourceProducer, PosDecode, MinFixed,
MaxFixed, NonCacheable, ReadWrite,
+ 0x00000000, // Address Space Granularity
+- 0xE0000000, // Address Range Minimum
++ 0xC0000000, // Address Range Minimum
+ 0xFEBFFFFF, // Address Range Maximum
+ 0x00000000, // Address Translation Offset
+ 0x1EC00000, // Address Length
+diff --git a/bios/rombios.c b/bios/rombios.c
+index ee46e42..48fdecc 100644
+--- a/bios/rombios.c
++++ b/bios/rombios.c
+@@ -9795,7 +9795,7 @@ pcibios_init_sel_reg:
+ pcibios_init_iomem_bases:
+ push bp
+ mov bp, sp
+- mov eax, #0xe0000000 ;; base for memory init
++ mov eax, #0xc0000000 ;; base for memory init
+ push eax
+ mov ax, #0xc000 ;; base for i/o init
+ push ax
+diff --git a/bios/rombios32.c b/bios/rombios32.c
+index 944d2e7..2dc17d7 100644
+--- a/bios/rombios32.c
++++ b/bios/rombios32.c
+@@ -812,8 +812,8 @@ static void pci_bios_init_device(PCIDevice *d)
+ case 0x0300: /* Display controller - VGA compatible controller */
+ if (vendor_id != 0x1234)
+ goto default_map;
+- /* VGA: map frame buffer to default Bochs VBE address */
+- pci_set_io_region_addr(d, 0, 0xE0000000);
++ /* VGA: map frame buffer */
++ pci_set_io_region_addr(d, 0, 0xC0000000);
+ break;
+ case 0x0800: /* Generic system peripheral - PIC */
+ if (vendor_id == PCI_VENDOR_ID_IBM) {
+@@ -900,7 +900,7 @@ void pci_for_each_device(void
(*init_func)(PCIDevice *d))
+ void pci_bios_init(void)
+ {
+ pci_bios_io_addr = 0xc000;
+- pci_bios_mem_addr = 0xf0000000;
++ pci_bios_mem_addr = 0xc0000000 + 0x1000000;
+ pci_bios_bigmem_addr = ram_size;
+ if (pci_bios_bigmem_addr < 0x90000000)
+ pci_bios_bigmem_addr = 0x90000000;
+--
+1.6.0.6
+
diff --git a/pc-bios/bios-pq/series b/pc-bios/bios-pq/series
index 556c0e4..8ea91a2 100644
--- a/pc-bios/bios-pq/series
+++ b/pc-bios/bios-pq/series
@@ -1 +1,2 @@
0001_bx-qemu.patch
+0001-bios-change-pci-mem-address-to-start-at-0xc0000000.patch
diff --git
a/pc-bios/vgabios-pq/0001-vga-bios-change-vbe-mapping-to-start-from-0xc000000.patch
b/pc-bios/vgabios-pq/0001-vga-bios-change-vbe-mapping-to-start-from-0xc000000.patch
new file mode 100644
index 0000000..cff97bf
--- /dev/null
+++
b/pc-bios/vgabios-pq/0001-vga-bios-change-vbe-mapping-to-start-from-0xc000000.patch
@@ -0,0 +1,41 @@
+From ed2bdeed6ecc68f968ef1a398b8d65022e1db236 Mon Sep 17 00:00:00 2001
+From: izike <ieidus@redhat.com>
+Date: Sun, 18 Jan 2009 07:13:34 +0200
+Subject: [PATCH] vga-bios: change vbe mapping to start from 0xc0000000
+ changing the mapping from 0xe0000000 to 0xc0000000 is needed in order to
+ allow to increase the size of the pci mem hole
+
+Signed-off-by: Izik Eidus <ieidus@redhat.com>
+---
+ vbe.h | 2 +-
+ vbe_display_api.txt | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/vbe.h b/vbe.h
+index 60434ac..a199c7d 100644
+--- a/vbe.h
++++ b/vbe.h
+@@ -308,6 +308,6 @@ typedef struct ModeInfoListItem
+ #define VBE_DISPI_LFB_ENABLED 0x40
+ #define VBE_DISPI_NOCLEARMEM 0x80
+
+- #define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000
++ #define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xC0000000
+
+ #endif
+diff --git a/vbe_display_api.txt b/vbe_display_api.txt
+index fddb78b..c6be039 100644
+--- a/vbe_display_api.txt
++++ b/vbe_display_api.txt
+@@ -119,7 +119,7 @@ vbe.h
+ #define VBE_DISPI_VBE_ENABLED 0x40
+ #define VBE_DISPI_NOCLEARMEM 0x80
+
+- #define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000
++ #define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xC0000000
+
+ API
+ ---
+--
+1.6.0.6
+
diff --git a/pc-bios/vgabios-pq/series b/pc-bios/vgabios-pq/series
index e69de29..5503640 100644
--- a/pc-bios/vgabios-pq/series
+++ b/pc-bios/vgabios-pq/series
@@ -0,0 +1 @@
+0001-vga-bios-change-vbe-mapping-to-start-from-0xc000000.patch
--
1.6.0.6
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [Qemu-devel] [PATCH] qemu: change pci mapping to start from 0xc000000
2009-01-18 5:29 [Qemu-devel] [PATCH] qemu: change pci mapping to start from 0xc000000 Izik Eidus
@ 2009-01-18 16:02 ` Jean-Christophe PLAGNIOL-VILLARD
2009-01-19 10:37 ` Izik Eidus
0 siblings, 1 reply; 3+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2009-01-18 16:02 UTC (permalink / raw)
To: Izik Eidus; +Cc: qemu-devel
On 07:29 Sun 18 Jan , Izik Eidus wrote:
> changing the pci mapping to start from 0xc000000 give much more
> memory resources to pci devices inside qemu.
>
> note: none pea guests wont be able to see more than 3Giga of ram
> but it doesnt seems like a problem.
>
> Signed-off-by: Izik Eidus <ieidus@redhat.com>
you mail is line wrapped
and maybe you could be more specific in the commit message about which
arch/board you update
Best Regards,
J.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Qemu-devel] [PATCH] qemu: change pci mapping to start from 0xc000000
2009-01-18 16:02 ` Jean-Christophe PLAGNIOL-VILLARD
@ 2009-01-19 10:37 ` Izik Eidus
0 siblings, 0 replies; 3+ messages in thread
From: Izik Eidus @ 2009-01-19 10:37 UTC (permalink / raw)
To: Izik Eidus, qemu-devel
Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 07:29 Sun 18 Jan , Izik Eidus wrote:
>
>> changing the pci mapping to start from 0xc000000 give much more
>> memory resources to pci devices inside qemu.
>>
>> note: none pea guests wont be able to see more than 3Giga of ram
>> but it doesnt seems like a problem.
>>
>> Signed-off-by: Izik Eidus <ieidus@redhat.com>
>> and maybe you could be more specific in the commit message about which
>> arch/board you update
>>
The update is just for x86 systems..
^ permalink raw reply [flat|nested] 3+ messages in thread
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2009-01-18 5:29 [Qemu-devel] [PATCH] qemu: change pci mapping to start from 0xc000000 Izik Eidus
2009-01-18 16:02 ` Jean-Christophe PLAGNIOL-VILLARD
2009-01-19 10:37 ` Izik Eidus
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