Author: tkreuzer Date: Sat Oct 18 19:01:53 2014 New Revision: 64811
URL: http://svn.reactos.org/svn/reactos?rev=64811&view=rev Log: [FREELDR] Apply proper indentation, no code change.
Modified: trunk/reactos/boot/freeldr/freeldr/arch/i386/pcmem.c
Modified: trunk/reactos/boot/freeldr/freeldr/arch/i386/pcmem.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/arch/i... ============================================================================== --- trunk/reactos/boot/freeldr/freeldr/arch/i386/pcmem.c [iso-8859-1] (original) +++ trunk/reactos/boot/freeldr/freeldr/arch/i386/pcmem.c [iso-8859-1] Sat Oct 18 19:01:53 2014 @@ -44,16 +44,16 @@
FREELDR_MEMORY_DESCRIPTOR PcMemoryMap[MAX_BIOS_DESCRIPTORS + 1] = { - { LoaderFirmwarePermanent, 0x00, 1 }, // realmode int vectors - { LoaderFirmwareTemporary, 0x01, FREELDR_BASE_PAGE - 1 }, // freeldr stack + cmdline - { LoaderLoadedProgram, FREELDR_BASE_PAGE, FREELDR_PAGE_COUNT }, // freeldr image - { LoaderFirmwareTemporary, DISKBUF_BASE_PAGE, DISKBUF_PAGE_COUNT }, // Disk read buffer for int 13h. DISKREADBUFFER - { LoaderOsloaderStack, STACK_BASE_PAGE, STACK_PAGE_COUNT }, // prot mode stack. - { LoaderFirmwareTemporary, BIOSBUF_BASE_PAGE, BIOSBUF_PAGE_COUNT }, // BIOSCALLBUFFER - { LoaderFirmwarePermanent, 0xA0, 0x50 }, // ROM / Video - { LoaderSpecialMemory, 0xF0, 0x10 }, // ROM / Video - { LoaderSpecialMemory, 0xFFF, 1 }, // unusable memory - { 0, 0, 0 }, // end of map + { LoaderFirmwarePermanent, 0x00, 1 }, // realmode int vectors + { LoaderFirmwareTemporary, 0x01, FREELDR_BASE_PAGE - 1 }, // freeldr stack + cmdline + { LoaderLoadedProgram, FREELDR_BASE_PAGE, FREELDR_PAGE_COUNT }, // freeldr image + { LoaderFirmwareTemporary, DISKBUF_BASE_PAGE, DISKBUF_PAGE_COUNT }, // Disk read buffer for int 13h. DISKREADBUFFER + { LoaderOsloaderStack, STACK_BASE_PAGE, STACK_PAGE_COUNT }, // prot mode stack. + { LoaderFirmwareTemporary, BIOSBUF_BASE_PAGE, BIOSBUF_PAGE_COUNT }, // BIOSCALLBUFFER + { LoaderFirmwarePermanent, 0xA0, 0x50 }, // ROM / Video + { LoaderSpecialMemory, 0xF0, 0x10 }, // ROM / Video + { LoaderSpecialMemory, 0xFFF, 1 }, // unusable memory + { 0, 0, 0 }, // end of map };
ULONG @@ -163,187 +163,187 @@ static ULONG PcMemGetConventionalMemorySize(VOID) { - REGS Regs; - - TRACE("GetConventionalMemorySize()\n"); - - /* Int 12h - * BIOS - GET MEMORY SIZE - * - * Return: - * AX = kilobytes of contiguous memory starting at absolute address 00000h - * - * This call returns the contents of the word at 0040h:0013h; - * in PC and XT, this value is set from the switches on the motherboard - */ - Regs.w.ax = 0; - Int386(0x12, &Regs, &Regs); - - TRACE("Int12h\n"); - TRACE("AX = 0x%x\n\n", Regs.w.ax); - - return (ULONG)Regs.w.ax; + REGS Regs; + + TRACE("GetConventionalMemorySize()\n"); + + /* Int 12h + * BIOS - GET MEMORY SIZE + * + * Return: + * AX = kilobytes of contiguous memory starting at absolute address 00000h + * + * This call returns the contents of the word at 0040h:0013h; + * in PC and XT, this value is set from the switches on the motherboard + */ + Regs.w.ax = 0; + Int386(0x12, &Regs, &Regs); + + TRACE("Int12h\n"); + TRACE("AX = 0x%x\n\n", Regs.w.ax); + + return (ULONG)Regs.w.ax; }
static ULONG PcMemGetBiosMemoryMap(PFREELDR_MEMORY_DESCRIPTOR MemoryMap, ULONG MaxMemoryMapSize) { - REGS Regs; - ULONG MapCount = 0; - ULONGLONG RealBaseAddress, RealSize; - TYPE_OF_MEMORY MemoryType; - ASSERT(PcBiosMapCount == 0); - - TRACE("GetBiosMemoryMap()\n"); - - /* Int 15h AX=E820h - * Newer BIOSes - GET SYSTEM MEMORY MAP - * - * AX = E820h - * EAX = 0000E820h - * EDX = 534D4150h ('SMAP') - * EBX = continuation value or 00000000h to start at beginning of map - * ECX = size of buffer for result, in bytes (should be >= 20 bytes) - * ES:DI -> buffer for result - * Return: - * CF clear if successful - * EAX = 534D4150h ('SMAP') - * ES:DI buffer filled - * EBX = next offset from which to copy or 00000000h if all done - * ECX = actual length returned in bytes - * CF set on error - * AH = error code (86h) - */ - Regs.x.ebx = 0x00000000; - - while (PcBiosMapCount < MAX_BIOS_DESCRIPTORS) - { - /* Setup the registers for the BIOS call */ - Regs.x.eax = 0x0000E820; - Regs.x.edx = 0x534D4150; /* ('SMAP') */ - /* Regs.x.ebx = 0x00000001; Continuation value already set */ - Regs.x.ecx = sizeof(BIOS_MEMORY_MAP); - Regs.w.es = BIOSCALLBUFSEGMENT; - Regs.w.di = BIOSCALLBUFOFFSET; - Int386(0x15, &Regs, &Regs); - - TRACE("Memory Map Entry %d\n", PcBiosMapCount); - TRACE("Int15h AX=E820h\n"); - TRACE("EAX = 0x%x\n", Regs.x.eax); - TRACE("EBX = 0x%x\n", Regs.x.ebx); - TRACE("ECX = 0x%x\n", Regs.x.ecx); - TRACE("CF set = %s\n", (Regs.x.eflags & EFLAGS_CF) ? "TRUE" : "FALSE"); - - /* If the BIOS didn't return 'SMAP' in EAX then - * it doesn't support this call. If CF is set, we're done */ - if (Regs.x.eax != 0x534D4150 || !INT386_SUCCESS(Regs)) - { - break; - } - - /* Copy data to global buffer */ - RtlCopyMemory(&PcBiosMemoryMap[PcBiosMapCount], (PVOID)BIOSCALLBUFFER, Regs.x.ecx); - - TRACE("BaseAddress: 0x%llx\n", PcBiosMemoryMap[PcBiosMapCount].BaseAddress); - TRACE("Length: 0x%llx\n", PcBiosMemoryMap[PcBiosMapCount].Length); - TRACE("Type: 0x%lx\n", PcBiosMemoryMap[PcBiosMapCount].Type); - TRACE("Reserved: 0x%lx\n", PcBiosMemoryMap[PcBiosMapCount].Reserved); - TRACE("\n"); - - /* Check if this is free memory */ - if (PcBiosMemoryMap[PcBiosMapCount].Type == BiosMemoryUsable) - { - MemoryType = LoaderFree; - - /* Align up base of memory area */ - RealBaseAddress = PcBiosMemoryMap[PcBiosMapCount].BaseAddress & ~(MM_PAGE_SIZE - 1ULL); - - /* Calculate the length after aligning the base */ - RealSize = PcBiosMemoryMap[PcBiosMapCount].BaseAddress + - PcBiosMemoryMap[PcBiosMapCount].Length - RealBaseAddress; - RealSize = (RealSize + MM_PAGE_SIZE - 1) & ~(MM_PAGE_SIZE - 1ULL); - } - else - { - if (PcBiosMemoryMap[PcBiosMapCount].Type == BiosMemoryReserved) - MemoryType = LoaderFirmwarePermanent; - else - MemoryType = LoaderSpecialMemory; - - /* Align down base of memory area */ - RealBaseAddress = PcBiosMemoryMap[PcBiosMapCount].BaseAddress & ~(MM_PAGE_SIZE - 1ULL); - /* Calculate the length after aligning the base */ - RealSize = PcBiosMemoryMap[PcBiosMapCount].BaseAddress + - PcBiosMemoryMap[PcBiosMapCount].Length - RealBaseAddress; - RealSize = (RealSize + MM_PAGE_SIZE - 1) & ~(MM_PAGE_SIZE - 1ULL); - } - - /* Check if we can add this descriptor */ - if ((RealSize >= MM_PAGE_SIZE) && (MapCount < MaxMemoryMapSize)) - { - /* Add the descriptor */ - MapCount = AddMemoryDescriptor(PcMemoryMap, - MAX_BIOS_DESCRIPTORS, - (PFN_NUMBER)(RealBaseAddress / MM_PAGE_SIZE), - (PFN_NUMBER)(RealSize / MM_PAGE_SIZE), - MemoryType); - } - - PcBiosMapCount++; - - /* If the continuation value is zero or the - * carry flag is set then this was - * the last entry so we're done */ - if (Regs.x.ebx == 0x00000000) - { - TRACE("End Of System Memory Map!\n\n"); - break; - } - - } - - return MapCount; + REGS Regs; + ULONG MapCount = 0; + ULONGLONG RealBaseAddress, RealSize; + TYPE_OF_MEMORY MemoryType; + ASSERT(PcBiosMapCount == 0); + + TRACE("GetBiosMemoryMap()\n"); + + /* Int 15h AX=E820h + * Newer BIOSes - GET SYSTEM MEMORY MAP + * + * AX = E820h + * EAX = 0000E820h + * EDX = 534D4150h ('SMAP') + * EBX = continuation value or 00000000h to start at beginning of map + * ECX = size of buffer for result, in bytes (should be >= 20 bytes) + * ES:DI -> buffer for result + * Return: + * CF clear if successful + * EAX = 534D4150h ('SMAP') + * ES:DI buffer filled + * EBX = next offset from which to copy or 00000000h if all done + * ECX = actual length returned in bytes + * CF set on error + * AH = error code (86h) + */ + Regs.x.ebx = 0x00000000; + + while (PcBiosMapCount < MAX_BIOS_DESCRIPTORS) + { + /* Setup the registers for the BIOS call */ + Regs.x.eax = 0x0000E820; + Regs.x.edx = 0x534D4150; /* ('SMAP') */ + /* Regs.x.ebx = 0x00000001; Continuation value already set */ + Regs.x.ecx = sizeof(BIOS_MEMORY_MAP); + Regs.w.es = BIOSCALLBUFSEGMENT; + Regs.w.di = BIOSCALLBUFOFFSET; + Int386(0x15, &Regs, &Regs); + + TRACE("Memory Map Entry %d\n", PcBiosMapCount); + TRACE("Int15h AX=E820h\n"); + TRACE("EAX = 0x%x\n", Regs.x.eax); + TRACE("EBX = 0x%x\n", Regs.x.ebx); + TRACE("ECX = 0x%x\n", Regs.x.ecx); + TRACE("CF set = %s\n", (Regs.x.eflags & EFLAGS_CF) ? "TRUE" : "FALSE"); + + /* If the BIOS didn't return 'SMAP' in EAX then + * it doesn't support this call. If CF is set, we're done */ + if (Regs.x.eax != 0x534D4150 || !INT386_SUCCESS(Regs)) + { + break; + } + + /* Copy data to global buffer */ + RtlCopyMemory(&PcBiosMemoryMap[PcBiosMapCount], (PVOID)BIOSCALLBUFFER, Regs.x.ecx); + + TRACE("BaseAddress: 0x%llx\n", PcBiosMemoryMap[PcBiosMapCount].BaseAddress); + TRACE("Length: 0x%llx\n", PcBiosMemoryMap[PcBiosMapCount].Length); + TRACE("Type: 0x%lx\n", PcBiosMemoryMap[PcBiosMapCount].Type); + TRACE("Reserved: 0x%lx\n", PcBiosMemoryMap[PcBiosMapCount].Reserved); + TRACE("\n"); + + /* Check if this is free memory */ + if (PcBiosMemoryMap[PcBiosMapCount].Type == BiosMemoryUsable) + { + MemoryType = LoaderFree; + + /* Align up base of memory area */ + RealBaseAddress = PcBiosMemoryMap[PcBiosMapCount].BaseAddress & ~(MM_PAGE_SIZE - 1ULL); + + /* Calculate the length after aligning the base */ + RealSize = PcBiosMemoryMap[PcBiosMapCount].BaseAddress + + PcBiosMemoryMap[PcBiosMapCount].Length - RealBaseAddress; + RealSize = (RealSize + MM_PAGE_SIZE - 1) & ~(MM_PAGE_SIZE - 1ULL); + } + else + { + if (PcBiosMemoryMap[PcBiosMapCount].Type == BiosMemoryReserved) + MemoryType = LoaderFirmwarePermanent; + else + MemoryType = LoaderSpecialMemory; + + /* Align down base of memory area */ + RealBaseAddress = PcBiosMemoryMap[PcBiosMapCount].BaseAddress & ~(MM_PAGE_SIZE - 1ULL); + /* Calculate the length after aligning the base */ + RealSize = PcBiosMemoryMap[PcBiosMapCount].BaseAddress + + PcBiosMemoryMap[PcBiosMapCount].Length - RealBaseAddress; + RealSize = (RealSize + MM_PAGE_SIZE - 1) & ~(MM_PAGE_SIZE - 1ULL); + } + + /* Check if we can add this descriptor */ + if ((RealSize >= MM_PAGE_SIZE) && (MapCount < MaxMemoryMapSize)) + { + /* Add the descriptor */ + MapCount = AddMemoryDescriptor(PcMemoryMap, + MAX_BIOS_DESCRIPTORS, + (PFN_NUMBER)(RealBaseAddress / MM_PAGE_SIZE), + (PFN_NUMBER)(RealSize / MM_PAGE_SIZE), + MemoryType); + } + + PcBiosMapCount++; + + /* If the continuation value is zero or the + * carry flag is set then this was + * the last entry so we're done */ + if (Regs.x.ebx == 0x00000000) + { + TRACE("End Of System Memory Map!\n\n"); + break; + } + + } + + return MapCount; }
PFREELDR_MEMORY_DESCRIPTOR PcMemGetMemoryMap(ULONG *MemoryMapSize) { - ULONG i, EntryCount; - ULONG ExtendedMemorySizeAtOneMB; - ULONG ExtendedMemorySizeAtSixteenMB; - - EntryCount = PcMemGetBiosMemoryMap(PcMemoryMap, MAX_BIOS_DESCRIPTORS); - - /* If the BIOS didn't provide a memory map, synthesize one */ - if (0 == EntryCount) - { - GetExtendedMemoryConfiguration(&ExtendedMemorySizeAtOneMB, &ExtendedMemorySizeAtSixteenMB); - - /* Conventional memory */ - AddMemoryDescriptor(PcMemoryMap, - MAX_BIOS_DESCRIPTORS, - 0, - PcMemGetConventionalMemorySize() * 1024 / PAGE_SIZE, - LoaderFree); - - /* Extended memory */ - EntryCount = AddMemoryDescriptor(PcMemoryMap, - MAX_BIOS_DESCRIPTORS, - 1024 * 1024 / PAGE_SIZE, - ExtendedMemorySizeAtOneMB * 1024 / PAGE_SIZE, - LoaderFree); - - if (ExtendedMemorySizeAtSixteenMB != 0) - { - /* Extended memory at 16MB */ + ULONG i, EntryCount; + ULONG ExtendedMemorySizeAtOneMB; + ULONG ExtendedMemorySizeAtSixteenMB; + + EntryCount = PcMemGetBiosMemoryMap(PcMemoryMap, MAX_BIOS_DESCRIPTORS); + + /* If the BIOS didn't provide a memory map, synthesize one */ + if (0 == EntryCount) + { + GetExtendedMemoryConfiguration(&ExtendedMemorySizeAtOneMB, &ExtendedMemorySizeAtSixteenMB); + + /* Conventional memory */ + AddMemoryDescriptor(PcMemoryMap, + MAX_BIOS_DESCRIPTORS, + 0, + PcMemGetConventionalMemorySize() * 1024 / PAGE_SIZE, + LoaderFree); + + /* Extended memory */ EntryCount = AddMemoryDescriptor(PcMemoryMap, - MAX_BIOS_DESCRIPTORS, - 0x1000000 / PAGE_SIZE, - ExtendedMemorySizeAtSixteenMB * 64 * 1024 / PAGE_SIZE, - LoaderFree); - } + MAX_BIOS_DESCRIPTORS, + 1024 * 1024 / PAGE_SIZE, + ExtendedMemorySizeAtOneMB * 1024 / PAGE_SIZE, + LoaderFree); + + if (ExtendedMemorySizeAtSixteenMB != 0) + { + /* Extended memory at 16MB */ + EntryCount = AddMemoryDescriptor(PcMemoryMap, + MAX_BIOS_DESCRIPTORS, + 0x1000000 / PAGE_SIZE, + ExtendedMemorySizeAtSixteenMB * 64 * 1024 / PAGE_SIZE, + LoaderFree); + } }
TRACE("Dumping resulting memory map:\n"); @@ -355,9 +355,9 @@ MmGetSystemMemoryMapTypeString(PcMemoryMap[i].MemoryType)); }
- *MemoryMapSize = EntryCount; - - return PcMemoryMap; + *MemoryMapSize = EntryCount; + + return PcMemoryMap; }
/* EOF */
-
tkreuzer＠svn.reactos.org