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[multiboot] Build memory map after shutting down and unhiding gPXE 

The Multiboot memory map needs to be built after unhiding gPXE and
downloaded images from memory.  Solaris faults during boot when trying
to access the ramdisk, which is hidden from the memory map while gPXE is
executing.  This issue is fixed by using the memory map from after gPXE
unhides itself.

Reported-by: Moinak Ghosh <moinakg@belenix.org>
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
This commit is contained in:
Stefan Hajnoczi 2009-08-13 21:48:10 +01:00
parent 177389fb73
commit 2eeb711560
1 changed files with 6 additions and 2 deletions
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8
src/arch/i386/image/multiboot.c
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@ -267,8 +267,6 @@ static int multiboot_exec ( struct image *image ) {
memset ( &mbinfo, 0, sizeof ( mbinfo ) );
mbinfo.flags = ( MBI_FLAG_LOADER | MBI_FLAG_MEM | MBI_FLAG_MMAP |
MBI_FLAG_CMDLINE | MBI_FLAG_MODS );
multiboot_build_memmap ( image, &mbinfo, mbmemmap,
( sizeof(mbmemmap) / sizeof(mbmemmap[0]) ) );
mb_cmdline_offset = 0;
mbinfo.cmdline = multiboot_add_cmdline ( image->name, image->cmdline );
mbinfo.mods_count = multiboot_build_module_list ( image, mbmodules,
@ -282,6 +280,12 @@ static int multiboot_exec ( struct image *image ) {
*/
shutdown ( SHUTDOWN_BOOT );
/* Build memory map after unhiding bootloader memory regions as part of
* shutting everything down.
*/
multiboot_build_memmap ( image, &mbinfo, mbmemmap,
( sizeof(mbmemmap) / sizeof(mbmemmap[0]) ) );
/* Jump to OS with flat physical addressing */
DBGC ( image, "MULTIBOOT %p starting execution at %lx\n",
image, entry );