diff options
Diffstat (limited to 'pc-bios/bios-pq/0002_e820-high-mem.patch')
| -rw-r--r-- | pc-bios/bios-pq/0002_e820-high-mem.patch | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/pc-bios/bios-pq/0002_e820-high-mem.patch b/pc-bios/bios-pq/0002_e820-high-mem.patch deleted file mode 100644 index 2886e8566..000000000 --- a/pc-bios/bios-pq/0002_e820-high-mem.patch +++ /dev/null @@ -1,129 +0,0 @@ -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 - - --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); -@@ -4470,7 +4473,9 @@ 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); - -@@ -4544,11 +4549,18 @@ 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, 0x0009f000L, 1); -+ 0x0000000L, 0x0009f000L, 0, 0, 1); - regs.u.r32.ebx = 1; - regs.u.r32.eax = 0x534D4150; - regs.u.r32.ecx = 0x14; -@@ -4557,7 +4569,7 @@ ASM_END - break; - case 1: - set_e820_range(ES, regs.u.r16.di, -- 0x0009f000L, 0x000a0000L, 2); -+ 0x0009f000L, 0x000a0000L, 0, 0, 2); - regs.u.r32.ebx = 2; - regs.u.r32.eax = 0x534D4150; - regs.u.r32.ecx = 0x14; -@@ -4566,7 +4578,7 @@ 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; -@@ -4577,7 +4589,7 @@ ASM_END - #if BX_ROMBIOS32 - 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; - #else - set_e820_range(ES, regs.u.r16.di, -@@ -4593,7 +4605,7 @@ 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; -@@ -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, -- 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; |