Update to the latest Bochs BIOS

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

.gitignore

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

pc-bios/README

-- 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/).

pc-bios/bios-pq/0001_bx-qemu.patch

+--- 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

pc-bios/bios.diff → pc-bios/bios-pq/0002_e820-high-mem.patch

---- 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);
-     }

pc-bios/bios-pq/0003_smp-startup-poll.patch

+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));
+ }

pc-bios/bios-pq/0004_no-stack-protector.patch

+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

pc-bios/bios-pq/HEAD

+8d4e158f0ea5fa00fa0276f487ff21609fbb0894

pc-bios/bios-pq/series

+0001_bx-qemu.patch
+0002_e820-high-mem.patch
+0003_smp-startup-poll.patch
+0004_no-stack-protector.patch