Changeset 32f6e1bd in mainline for arch/ia32/src/mm/memory_init.c

Timestamp:

2005-09-02T15:09:55Z (20 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

375237d1

Parents:

7df54df

Message:

Resolved mapping of e820 boot area, so that it can be accessed as
e820table from 32-bit mode and e820table_boot from real mode.

File:

• arch/ia32/src/mm/memory_init.c (modified) (2 diffs)

arch/ia32/src/mm/memory_init.c

@@ -32 +32 @@
 #include <print.h>
 
+__u8 e820counter __attribute__ ((section ("BOOT_DATA"))) = 0xff;
+struct e820memmap_ e820table[MEMMAP_E820_MAX_RECORDS] __attribute__ ((section ("BOOT_DATA"))) ;
+
 size_t get_memory_size(void) 
 {
@@ -41 +44 @@
         __u8 i;
         
-        /*
-         * We must not work with the original addresses for they are not mapped anymore.
-         */
-        struct e820memmap_ *memtable = (struct e820memmap_ *) PA2KA(e820table);
-        __u32 *counter_p = (__u32 *) PA2KA(&e820counter);
-        
-        
-        for (i=*counter_p;i>0;i--) {
-                printf("E820 base: %Q size: %Q type: ", memtable[i-1].base_address, memtable[i-1].size);
-                switch (memtable[i-1].type) {
+        for (i=e820counter;i>0;i--) {
+                printf("E820 base: %Q size: %Q type: ", e820table[i-1].base_address, e820table[i-1].size);
+                switch (e820table[i-1].type) {
                         case MEMMAP_MEMORY_AVAILABLE: 
                                 printf("available memory\n");