[tkreuzer] 57276: [FREELDR] - Remove the FILESYSBUFFER from the memory layout, grow the DISKREADBUFFER to 64 KB
Author: tkreuzer Date: Tue Sep 11 14:45:24 2012 New Revision: 57276
URL: http://svn.reactos.org/svn/reactos?rev=57276&view=rev Log: [FREELDR] - Remove the FILESYSBUFFER from the memory layout, grow the DISKREADBUFFER to 64 KB
Modified: trunk/reactos/boot/freeldr/freeldr/arch/i386/pcmem.c trunk/reactos/boot/freeldr/freeldr/include/arch/pc/x86common.h
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] Tue Sep 11 14:45:24 2012 @@ -29,15 +29,13 @@
#define MAX_BIOS_DESCRIPTORS 32 #define FREELDR_BASE_PAGE (FREELDR_BASE / PAGE_SIZE) -#define FILEBUF_BASE_PAGE (FILESYSBUFFER / PAGE_SIZE) #define DISKBUF_BASE_PAGE (DISKREADBUFFER / PAGE_SIZE) -#define STACK_BASE_PAGE (DISKBUF_BASE_PAGE + 1) +#define STACK_BASE_PAGE (STACKLOWLIMIT / PAGE_SIZE) #define STACK_END_PAGE (STACK32ADDR / PAGE_SIZE) #define BIOSBUF_BASE_PAGE (BIOSCALLBUFFER / PAGE_SIZE)
-#define FREELDR_PAGE_COUNT (FILEBUF_BASE_PAGE - FREELDR_BASE_PAGE) -#define FILEBUF_PAGE_COUNT (DISKBUF_BASE_PAGE - FILEBUF_BASE_PAGE) -#define DISKBUF_PAGE_COUNT (1) +#define FREELDR_PAGE_COUNT (DISKBUF_BASE_PAGE - FREELDR_BASE_PAGE) +#define DISKBUF_PAGE_COUNT (STACK_BASE_PAGE - DISKBUF_BASE_PAGE) #define STACK_PAGE_COUNT (STACK_END_PAGE - STACK_BASE_PAGE) #define BIOSBUF_PAGE_COUNT (1)
@@ -49,7 +47,6 @@ { 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, FILEBUF_BASE_PAGE, FILEBUF_PAGE_COUNT }, // File system read buffer. FILESYSBUFFER { 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
Modified: trunk/reactos/boot/freeldr/freeldr/include/arch/pc/x86common.h URL: http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/includ... ============================================================================== --- trunk/reactos/boot/freeldr/freeldr/include/arch/pc/x86common.h [iso-8859-1] (original) +++ trunk/reactos/boot/freeldr/freeldr/include/arch/pc/x86common.h [iso-8859-1] Tue Sep 11 14:45:24 2012 @@ -13,12 +13,12 @@ #define BSS_START HEX(6F00) #define FREELDR_BASE HEX(F800) #define FREELDR_PE_BASE HEX(10000) -#define FILESYSBUFFER HEX(80000) /* Buffer to store file system data (e.g. cluster buffer for FAT) */ -#define DISKREADBUFFER HEX(90000) /* Buffer to store data read in from the disk via the BIOS */ +#define DISKREADBUFFER HEX(80000) /* Buffer to store data read in from the disk via the BIOS */ +#define STACKLOWLIMIT HEX(90000) #define STACK32ADDR HEX(98000) /* The 32-bit stack top will be at 9000:8000, or 0xA8000 */ #define STACK64ADDR HEX(98000) /* The 64-bit stack top will be at 98000 */ #define BIOSCALLBUFFER HEX(98000) /* Buffer to store temporary data for any Int386() call */ -#define DISKREADBUFFER_SIZE 512 +#define DISKREADBUFFER_SIZE HEX(10000)
#define BIOSCALLBUFSEGMENT (BIOSCALLBUFFER/16) /* Buffer to store temporary data for any Int386() call */ #define BIOSCALLBUFOFFSET HEX(0000) /* Buffer to store temporary data for any Int386() call */
-
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