sravan/system76-coreboot
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Following patch adds necessary hooks and as well the compile time checks for

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ACPI suspend/resume.

The memory cleared now is just the coreboot memory not the low memory.

Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Acked-by: Peter Stuge <peter@stuge.se>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4099 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Rudolf Marek
2009-04-13 17:57:44 +00:00
parent 3f04dade05
commit a572f83e71
4 changed files with 44 additions and 3 deletions
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17
src/cpu/x86/lapic/lapic_cpu_init.c
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@@ -31,6 +31,12 @@ static unsigned long get_valid_start_eip(unsigned long orig_start_eip)
}
#endif
#if HAVE_ACPI_RESUME == 1
char *lowmem_backup;
char *lowmem_backup_ptr;
int lowmem_backup_size;
#endif
static void copy_secondary_start_to_1m_below(void)
{
#if _RAMBASE >= 0x100000
@@ -45,6 +51,17 @@ static void copy_secondary_start_to_1m_below(void)
start_eip = get_valid_start_eip((unsigned long)_secondary_start);
code_size = (unsigned long)_secondary_start_end - (unsigned long)_secondary_start;
#if HAVE_ACPI_RESUME == 1
/* need to save it for RAM resume */
lowmem_backup_size = code_size;
lowmem_backup = malloc(code_size);
lowmem_backup_ptr = (unsigned char *)start_eip;
if (lowmem_backup == NULL)
die("Out of backup memory\n");
memcpy(lowmem_backup, lowmem_backup_ptr, lowmem_backup_size);
#endif
/* copy the _secondary_start to the ram below 1M*/
memcpy((unsigned char *)start_eip, (unsigned char *)_secondary_start, code_size);