diff options
Diffstat (limited to 'pc-bios/bios.diff')
| -rw-r--r-- | pc-bios/bios.diff | 130 |
1 files changed, 127 insertions, 3 deletions
diff --git a/pc-bios/bios.diff b/pc-bios/bios.diff index 16b9887710..ce5f7032ba 100644 --- a/pc-bios/bios.diff +++ b/pc-bios/bios.diff @@ -1,10 +1,134 @@ +Index: rombios.c +=================================================================== +RCS file: /cvsroot/bochs/bochs/bios/rombios.c,v +retrieving revision 1.205 +diff -u -d -p -r1.205 rombios.c +--- rombios.c 21 Mar 2008 19:06:31 -0000 1.205 ++++ rombios.c 10 Apr 2008 09:47:48 -0000 +@@ -4395,22 +4395,25 @@ BX_DEBUG_INT15("case default:\n"); + #endif // BX_USE_PS2_MOUSE + + +-void set_e820_range(ES, DI, start, end, type) ++void set_e820_range(ES, DI, start, end, extra_start, extra_end, type) + Bit16u ES; + Bit16u DI; + Bit32u start; + Bit32u end; ++ Bit8u extra_start; ++ Bit8u extra_end; + Bit16u type; + { + write_word(ES, DI, start); + write_word(ES, DI+2, start >> 16); +- write_word(ES, DI+4, 0x00); ++ write_word(ES, DI+4, extra_start); + write_word(ES, DI+6, 0x00); + + end -= start; ++ extra_end -= extra_start; + write_word(ES, DI+8, end); + write_word(ES, DI+10, end >> 16); +- write_word(ES, DI+12, 0x0000); ++ write_word(ES, DI+12, extra_end); + write_word(ES, DI+14, 0x0000); + + write_word(ES, DI+16, type); +@@ -4423,7 +4426,9 @@ int15_function32(regs, ES, DS, FLAGS) + Bit16u ES, DS, FLAGS; + { + Bit32u extended_memory_size=0; // 64bits long ++ Bit32u extra_lowbits_memory_size=0; + Bit16u CX,DX; ++ Bit8u extra_highbits_memory_size=0; + + BX_DEBUG_INT15("int15 AX=%04x\n",regs.u.r16.ax); + +@@ -4497,11 +4502,18 @@ ASM_END + extended_memory_size += (1L * 1024 * 1024); + } + ++ extra_lowbits_memory_size = inb_cmos(0x5c); ++ extra_lowbits_memory_size <<= 8; ++ extra_lowbits_memory_size |= inb_cmos(0x5b); ++ extra_lowbits_memory_size *= 64; ++ extra_lowbits_memory_size *= 1024; ++ extra_highbits_memory_size = inb_cmos(0x5d); ++ + switch(regs.u.r16.bx) + { + case 0: + set_e820_range(ES, regs.u.r16.di, +- 0x0000000L, 0x0009fc00L, 1); ++ 0x0000000L, 0x0009fc00L, 0, 0, 1); + regs.u.r32.ebx = 1; + regs.u.r32.eax = 0x534D4150; + regs.u.r32.ecx = 0x14; +@@ -4510,7 +4522,7 @@ ASM_END + break; + case 1: + set_e820_range(ES, regs.u.r16.di, +- 0x0009fc00L, 0x000a0000L, 2); ++ 0x0009fc00L, 0x000a0000L, 0, 0, 2); + regs.u.r32.ebx = 2; + regs.u.r32.eax = 0x534D4150; + regs.u.r32.ecx = 0x14; +@@ -4519,7 +4531,7 @@ ASM_END + break; + case 2: + set_e820_range(ES, regs.u.r16.di, +- 0x000e8000L, 0x00100000L, 2); ++ 0x000e8000L, 0x00100000L, 0, 0, 2); + regs.u.r32.ebx = 3; + regs.u.r32.eax = 0x534D4150; + regs.u.r32.ecx = 0x14; +@@ -4529,7 +4541,7 @@ ASM_END + case 3: + set_e820_range(ES, regs.u.r16.di, + 0x00100000L, +- extended_memory_size - ACPI_DATA_SIZE, 1); ++ extended_memory_size - ACPI_DATA_SIZE ,0, 0, 1); + regs.u.r32.ebx = 4; + regs.u.r32.eax = 0x534D4150; + regs.u.r32.ecx = 0x14; +@@ -4539,7 +4551,7 @@ ASM_END + case 4: + set_e820_range(ES, regs.u.r16.di, + extended_memory_size - ACPI_DATA_SIZE, +- extended_memory_size, 3); // ACPI RAM ++ extended_memory_size ,0, 0, 3); // ACPI RAM + regs.u.r32.ebx = 5; + regs.u.r32.eax = 0x534D4150; + regs.u.r32.ecx = 0x14; +@@ -4549,7 +4561,20 @@ ASM_END + case 5: + /* 256KB BIOS area at the end of 4 GB */ + set_e820_range(ES, regs.u.r16.di, +- 0xfffc0000L, 0x00000000L, 2); ++ 0xfffc0000L, 0x00000000L ,0, 0, 2); ++ if (extra_highbits_memory_size || extra_lowbits_memory_size) ++ regs.u.r32.ebx = 6; ++ else ++ regs.u.r32.ebx = 0; ++ regs.u.r32.eax = 0x534D4150; ++ regs.u.r32.ecx = 0x14; ++ CLEAR_CF(); ++ return; ++ case 6: ++ /* Maping of memory above 4 GB */ ++ set_e820_range(ES, regs.u.r16.di, 0x00000000L, ++ extra_lowbits_memory_size, 1, extra_highbits_memory_size ++ + 1, 1); + regs.u.r32.ebx = 0; + regs.u.r32.eax = 0x534D4150; + regs.u.r32.ecx = 0x14; Index: rombios.h =================================================================== RCS file: /cvsroot/bochs/bochs/bios/rombios.h,v retrieving revision 1.6 diff -u -d -p -r1.6 rombios.h --- rombios.h 26 Jan 2008 09:15:27 -0000 1.6 -+++ rombios.h 28 Mar 2008 10:22:04 -0000 ++++ rombios.h 10 Apr 2008 09:47:48 -0000 @@ -19,7 +19,7 @@ // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA @@ -20,7 +144,7 @@ RCS file: /cvsroot/bochs/bochs/bios/rombios32.c,v retrieving revision 1.24 diff -u -d -p -r1.24 rombios32.c --- rombios32.c 6 Mar 2008 20:18:20 -0000 1.24 -+++ rombios32.c 28 Mar 2008 10:22:04 -0000 ++++ rombios32.c 10 Apr 2008 09:47:48 -0000 @@ -477,7 +477,12 @@ void smp_probe(void) sipi_vector = AP_BOOT_ADDR >> 12; writel(APIC_BASE + APIC_ICR_LOW, 0x000C4600 | sipi_vector); @@ -40,7 +164,7 @@ RCS file: /cvsroot/bochs/bochs/bios/rombios32start.S,v retrieving revision 1.4 diff -u -d -p -r1.4 rombios32start.S --- rombios32start.S 26 Jan 2008 09:15:27 -0000 1.4 -+++ rombios32start.S 28 Mar 2008 10:22:04 -0000 ++++ rombios32start.S 10 Apr 2008 09:47:48 -0000 @@ -42,7 +42,7 @@ _start: smp_ap_boot_code_start: xor %ax, %ax |