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authorArthur Heymans <arthur@aheymans.xyz>2020-12-09 13:29:26 +0100
committerLean Sheng Tan <sheng.tan@9elements.com>2024-04-04 12:32:59 +0000
commit9099a6bb4d1e1fc717cb090e3cd39b32f0045289 (patch)
tree7cae51cf0cc9f723b1cc596204733c9924f948a9 /src/drivers/intel/fsp2_0
parente79d97bc3bd88f6723db00e0ac540fd2e0d0a592 (diff)
drivers/intel/fsp2_0: Support FSP-T in long mode
Call into FSP-T using the protected mode wrapper and enter long mode in FSP-T support assembly code. TEST: Booted on ibm/sbp1 in long mode. Change-Id: Id6b9780b06b4bfbb952e32091ffbf3d0014f2090 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/81281 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src/drivers/intel/fsp2_0')
-rw-r--r--src/drivers/intel/fsp2_0/temp_ram_exit.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/src/drivers/intel/fsp2_0/temp_ram_exit.c b/src/drivers/intel/fsp2_0/temp_ram_exit.c
index 87b77bcefa..86cc2163e9 100644
--- a/src/drivers/intel/fsp2_0/temp_ram_exit.c
+++ b/src/drivers/intel/fsp2_0/temp_ram_exit.c
@@ -1,10 +1,11 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
#include <arch/romstage.h>
+#include <cbfs.h>
#include <console/console.h>
#include <fsp/api.h>
#include <fsp/util.h>
-#include <cbfs.h>
+#include <mode_switch.h>
#include <types.h>
static void fsp_temp_ram_exit(void)
@@ -25,9 +26,12 @@ static void fsp_temp_ram_exit(void)
if (fsp_validate_component(&hdr, mapping, size) != CB_SUCCESS)
die("Invalid FSPM header!\n");
- temp_ram_exit = (void *)(hdr.image_base + hdr.temp_ram_exit_entry_offset);
+ temp_ram_exit = (void *)(uintptr_t)(hdr.image_base + hdr.temp_ram_exit_entry_offset);
printk(BIOS_DEBUG, "Calling TempRamExit: %p\n", temp_ram_exit);
- status = temp_ram_exit(NULL);
+ if (ENV_X86_64 && CONFIG(PLATFORM_USES_FSP2_X86_32))
+ status = protected_mode_call_1arg(temp_ram_exit, (uintptr_t)NULL);
+ else
+ status = temp_ram_exit(NULL);
if (status != FSP_SUCCESS)
die("TempRamExit returned with error 0x%08x!\n", status);