Type 4 from the E820 BIOS call is NVS. I saw this in Intel 450NX.
-- H.J. Lu (hjl@gnu.org)-- Index: arch/i386/kernel/setup.c =================================================================== RCS file: /cvsroot/nfs/kernel/linux-2.3/arch/i386/kernel/setup.c,v retrieving revision 1.1.1.5 diff -u -p -r1.1.1.5 setup.c --- arch/i386/kernel/setup.c 1999/11/14 17:52:48 1.1.1.5 +++ arch/i386/kernel/setup.c 1999/11/18 00:19:45 @@ -449,6 +449,9 @@ void __init setup_memory_region(void) case E820_ACPI: printk("(ACPI data)\n"); break; + case E820_NVS: + printk("(NVS data)\n"); + break; default: printk("type %lu\n", e820.map[i].type); break; } Index: include/asm-i386/e820.h =================================================================== RCS file: /cvsroot/nfs/kernel/linux-2.3/include/asm-i386/e820.h,v retrieving revision 1.1.1.1 diff -u -p -r1.1.1.1 e820.h --- include/asm-i386/e820.h 1999/10/15 21:24:07 1.1.1.1 +++ include/asm-i386/e820.h 1999/11/18 00:19:45 @@ -19,6 +19,7 @@ #define E820_RAM 1 #define E820_RESERVED 2 #define E820_ACPI 3 +#define E820_NVS 4 #define HIGH_MEMORY (1024*1024)- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/