sravan/system76-coreboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

arch/x86: Remove EARLY_EBDA_INIT support

Browse Source 
This is unused now.

Change-Id: Ie8bc1d6761d66c5e1dda40c34c940cdba90646d2
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36363
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Arthur Heymans
2019-10-26 20:31:41 +02:00
parent 005e25de0f
commit 8b7cd43d5d
6 changed files with 3 additions and 123 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
src/arch/x86/tables.c
View File

@ -194,41 +194,6 @@ static unsigned long write_smbios_table(unsigned long rom_table_end)
#define FORWARDING_TABLE_ADDR ((uintptr_t)0x500)
static uintptr_t forwarding_table = FORWARDING_TABLE_ADDR;
/*
* For EARLY_EBDA_INIT the BDA area will be wiped on the resume path which
* has the forwarding table entry. Therefore, when tables are written an
* entry is placed in cbmem that can be restored on OS resume to the proper
* location.
*/
static void stash_forwarding_table(uintptr_t addr, size_t sz)
{
void *cbmem_addr = cbmem_add(CBMEM_ID_CBTABLE_FWD, sz);
if (cbmem_addr == NULL) {
printk(BIOS_ERR, "Unable to allocate CBMEM forwarding entry.\n");
return;
}
memcpy(cbmem_addr, (void *)addr, sz);
}
static void restore_forwarding_table(void *dest)
{
const struct cbmem_entry *fwd_entry;
fwd_entry = cbmem_entry_find(CBMEM_ID_CBTABLE_FWD);
if (fwd_entry == NULL) {
printk(BIOS_ERR, "Unable to restore CBMEM forwarding entry.\n");
return;
}
memcpy(dest, cbmem_entry_start(fwd_entry), cbmem_entry_size(fwd_entry));
}
BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY,
restore_forwarding_table, (void *)FORWARDING_TABLE_ADDR);
void arch_write_tables(uintptr_t coreboot_table)
{
size_t sz;
@ -250,8 +215,6 @@ void arch_write_tables(uintptr_t coreboot_table)
sz = write_coreboot_forwarding_table(forwarding_table, coreboot_table);
stash_forwarding_table(forwarding_table, sz);
forwarding_table += sz;
/* Align up to page boundary for historical consistency. */
forwarding_table = ALIGN_UP(forwarding_table, 4*KiB);