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Update to the latest Bochs BIOS

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Update the PC BIOS to the latest version, split out the patches into 
patch series, and update the README to point to the new location of the 
Bochs BIOS source tree.

Also update the gitignore to allow the patch queue directory to be used.



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6077 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2008-12-17 21:35:49 +00:00
parent 44d3749c02
commit ca7b25e3ab
9 changed files with 87 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
.gitignore vendored
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@ -32,3 +32,4 @@ qemu-nbd.pod
*.d
.pc
patches
pc-bios/bios-pq/status

6
pc-bios/README
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@ -1,5 +1,7 @@
- The PC BIOS comes from the Bochs project
(http://bochs.sourceforge.net/). A patch from bios.diff was applied.
- The PC BIOS comes from the Bochs project (http://bochs.sourceforge.net/).
The patches in bios-pq have been applied. The binary is based on the revision
in bios-pq/HEAD with the patches in bios-pq/series applied. The git repo
that HEAD refers to is located at http://repo.or.cz/w/bochs-mirror.git
- The VGA BIOS and the Cirrus VGA BIOS come from the LGPL VGA bios
project (http://www.nongnu.org/vgabios/).

11
pc-bios/bios-pq/0001_bx-qemu.patch Normal file
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@ -0,0 +1,11 @@
--- bochs-2.3.7.orig/bios/rombios.h
+++ bochs-2.3.7/bios/rombios.h
@@ -19,7 +19,7 @@
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
/* define it to include QEMU specific code */
-//#define BX_QEMU
+#define BX_QEMU
#ifndef LEGACY
# define BX_ROMBIOS32 1

64
pc-bios/bios.diff → pc-bios/bios-pq/0002_e820-high-mem.patch
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@ -1,17 +1,16 @@
--- bochs-2.3.7.orig/bios/rombios.h
+++ bochs-2.3.7/bios/rombios.h
@@ -19,7 +19,7 @@
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
/* define it to include QEMU specific code */
-//#define BX_QEMU
+#define BX_QEMU
#ifndef LEGACY
# define BX_ROMBIOS32 1
--- bochs-2.3.7.orig/bios/rombios.c
+++ bochs-2.3.7/bios/rombios.c
@@ -4404,22 +4404,25 @@
From: Izik Eidus <izike@qumranet.com>
add support to memory above the pci hole
the new memory region is mapped after address 0x100000000,
the bios take the size of the memory after the 0x100000000 from
three new cmos bytes.
diff --git a/bios/rombios.c b/bios/rombios.c
index 1be0816..b70f249 100644
--- a/bios/rombios.c
+++ b/bios/rombios.c
@@ -4442,22 +4442,25 @@ BX_DEBUG_INT15("case default:\n");
#endif // BX_USE_PS2_MOUSE
@ -40,7 +39,7 @@
write_word(ES, DI+14, 0x0000);
write_word(ES, DI+16, type);
@@ -4432,7 +4435,9 @@
@@ -4470,7 +4473,9 @@ int15_function32(regs, ES, DS, FLAGS)
Bit16u ES, DS, FLAGS;
{
Bit32u extended_memory_size=0; // 64bits long
@ -50,7 +49,7 @@
BX_DEBUG_INT15("int15 AX=%04x\n",regs.u.r16.ax);
@@ -4506,11 +4511,18 @@
@@ -4544,11 +4549,18 @@ ASM_END
extended_memory_size += (1L * 1024 * 1024);
}
@ -65,21 +64,21 @@
{
case 0:
set_e820_range(ES, regs.u.r16.di,
- 0x0000000L, 0x0009fc00L, 1);
+ 0x0000000L, 0x0009fc00L, 0, 0, 1);
- 0x0000000L, 0x0009f000L, 1);
+ 0x0000000L, 0x0009f000L, 0, 0, 1);
regs.u.r32.ebx = 1;
regs.u.r32.eax = 0x534D4150;
regs.u.r32.ecx = 0x14;
@@ -4519,7 +4531,7 @@
@@ -4557,7 +4569,7 @@ ASM_END
break;
case 1:
set_e820_range(ES, regs.u.r16.di,
- 0x0009fc00L, 0x000a0000L, 2);
+ 0x0009fc00L, 0x000a0000L, 0, 0, 2);
- 0x0009f000L, 0x000a0000L, 2);
+ 0x0009f000L, 0x000a0000L, 0, 0, 2);
regs.u.r32.ebx = 2;
regs.u.r32.eax = 0x534D4150;
regs.u.r32.ecx = 0x14;
@@ -4528,7 +4540,7 @@
@@ -4566,7 +4578,7 @@ ASM_END
break;
case 2:
set_e820_range(ES, regs.u.r16.di,
@ -88,7 +87,7 @@
regs.u.r32.ebx = 3;
regs.u.r32.eax = 0x534D4150;
regs.u.r32.ecx = 0x14;
@@ -4539,7 +4551,7 @@
@@ -4577,7 +4589,7 @@ ASM_END
#if BX_ROMBIOS32
set_e820_range(ES, regs.u.r16.di,
0x00100000L,
@ -97,7 +96,7 @@
regs.u.r32.ebx = 4;
#else
set_e820_range(ES, regs.u.r16.di,
@@ -4555,7 +4567,7 @@
@@ -4593,7 +4605,7 @@ ASM_END
case 4:
set_e820_range(ES, regs.u.r16.di,
extended_memory_size - ACPI_DATA_SIZE,
@ -106,7 +105,7 @@
regs.u.r32.ebx = 5;
regs.u.r32.eax = 0x534D4150;
regs.u.r32.ecx = 0x14;
@@ -4565,7 +4577,20 @@
@@ -4603,7 +4615,20 @@ ASM_END
case 5:
/* 256KB BIOS area at the end of 4 GB */
set_e820_range(ES, regs.u.r16.di,
@ -128,18 +127,3 @@
regs.u.r32.ebx = 0;
regs.u.r32.eax = 0x534D4150;
regs.u.r32.ecx = 0x14;
--- bochs-2.3.7.orig/bios/rombios32.c
+++ bochs-2.3.7/bios/rombios32.c
@@ -479,7 +479,12 @@
sipi_vector = AP_BOOT_ADDR >> 12;
writel(APIC_BASE + APIC_ICR_LOW, 0x000C4600 | sipi_vector);
+#ifndef BX_QEMU
delay_ms(10);
+#else
+ while (cmos_readb(0x5f) + 1 != readw((void *)CPU_COUNT_ADDR))
+ ;
+#endif
smp_cpus = readw((void *)CPU_COUNT_ADDR);
}

21
pc-bios/bios-pq/0003_smp-startup-poll.patch Normal file
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@ -0,0 +1,21 @@
From: Avi Kivity <avi@qumranet.com>
instead of timing out, wait until all cpus are up
diff --git a/bios/rombios32.c b/bios/rombios32.c
index ef98a41..05ba40d 100644
--- a/bios/rombios32.c
+++ b/bios/rombios32.c
@@ -512,7 +512,12 @@ void smp_probe(void)
sipi_vector = AP_BOOT_ADDR >> 12;
writel(APIC_BASE + APIC_ICR_LOW, 0x000C4600 | sipi_vector);
+#ifndef BX_QEMU
delay_ms(10);
+#else
+ while (cmos_readb(0x5f) + 1 != readw(&smp_cpus))
+ ;
+#endif
}
BX_INFO("Found %d cpu(s)\n", readw(&smp_cpus));
}

21
pc-bios/bios-pq/0004_no-stack-protector.patch Normal file
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@ -0,0 +1,21 @@
Disable stack protector for BIOS
Some distro GCCs (like Ubuntu) enable stack protection by default. Since the
BIOS doesn't link against libgcc, this results in undefined references unless
the stack protector is disabled.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/bios/Makefile.in b/bios/Makefile.in
index af674b4..5c7bd4f 100644
--- a/bios/Makefile.in
+++ b/bios/Makefile.in
@@ -41,7 +41,7 @@ RANLIB = @RANLIB@
BCC = bcc
GCC = gcc
-GCC32 = gcc -m32
+GCC32 = gcc -m32 -fno-stack-protector
AS86 = as86
BX_INCDIRS = -I.. -I$(srcdir)/.. -I../iodev -I$(srcdir)/../iodev

1
pc-bios/bios-pq/HEAD Normal file
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@ -0,0 +1 @@
8d4e158f0ea5fa00fa0276f487ff21609fbb0894

4
pc-bios/bios-pq/series Normal file
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@ -0,0 +1,4 @@
0001_bx-qemu.patch
0002_e820-high-mem.patch
0003_smp-startup-poll.patch
0004_no-stack-protector.patch

BIN
pc-bios/bios.bin
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