cpu/intel/smm: Drop em64t save state

This save state is just plainly wrong in many regards and em64t100
should be used.

Checked with a model 0x17 core2 CPU.

Change-Id: I4d89691e87c91dd12b34a44b74849b18b4ac5369
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36660
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/cpu/x86/smm/smihandler.c

@@ -18,7 +18,6 @@
 #include <cpu/x86/smm.h>
 #include <cpu/x86/smi_deprecated.h>
 #include <cpu/amd/amd64_save_state.h>
-#include <cpu/intel/em64t_save_state.h>
 #include <cpu/intel/em64t100_save_state.h>
 #include <cpu/intel/em64t101_save_state.h>
 #include <cpu/x86/legacy_save_state.h>
@@ -29,7 +28,7 @@
 
 typedef enum {
 	AMD64,
-	EM64T,
+	EM64T100,
 	EM64T101,
 	LEGACY
 } save_state_type_t;
@@ -38,7 +37,7 @@ typedef struct {
 	save_state_type_t type;
 	union {
 	amd64_smm_state_save_area_t *amd64_state_save;
-	em64t_smm_state_save_area_t *em64t_state_save;
+	em64t100_smm_state_save_area_t *em64t100_state_save;
 	em64t101_smm_state_save_area_t *em64t101_state_save;
 	legacy_smm_state_save_area_t *legacy_state_save;
 	};
@@ -178,10 +177,10 @@ void smi_handler(u32 smm_revision)
 				       SMM_LEGACY_ARCH_OFFSET, node);
 		break;
 	case 0x00030100:
-		state_save.type = EM64T;
+		state_save.type = EM64T100;
-		state_save.em64t_state_save =
+		state_save.em64t100_state_save =
 			smm_save_state(smm_base,
-				       SMM_EM64T_ARCH_OFFSET, node);
+				       SMM_EM64T100_ARCH_OFFSET, node);
 		break;
 	case 0x00030101: /* SandyBridge, IvyBridge, and Haswell */
 		state_save.type = EM64T101;

src/include/cpu/intel/em64t100_save_state.h

@@ -17,10 +17,8 @@
 #include <types.h>
 #include <cpu/x86/smm.h>
 
-/* Intel Revision 30100 SMM State-Save Area
+/* Intel Revision 30100 SMM State-Save Area */
- * The following processor architectures use this:
+
- * - Bay Trail
- */
 #define SMM_EM64T100_ARCH_OFFSET 0x7c00
 #define SMM_EM64T100_SAVE_STATE_OFFSET \
 	SMM_SAVE_STATE_BEGIN(SMM_EM64T100_ARCH_OFFSET)

src/include/cpu/intel/em64t_save_state.h

@@ -1,101 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef __EM64T_SAVE_STATE_H__
-#define __EM64T_SAVE_STATE_H__
-
-#include <types.h>
-#include <cpu/x86/smm.h>
-
-/* Intel Core 2 (EM64T) SMM State-Save Area
- * starts @ 0x7c00
- */
-#define SMM_EM64T_ARCH_OFFSET 0x7c00
-#define SMM_EM64T_SAVE_STATE_OFFSET \
-	SMM_SAVE_STATE_BEGIN(SMM_EM64T_ARCH_OFFSET)
-typedef struct {
-	u8	reserved0[256];
-	u8	reserved1[208];
-
-	u32	gdtr_upper_base;
-	u32	ldtr_upper_base;
-	u32	idtr_upper_base;
-
-	u8	reserved2[4];
-
-	u64	io_rdi;
-	u64	io_rip;
-	u64	io_rcx;
-	u64	io_rsi;
-	u64	cr4;
-
-	u8	reserved3[68];
-
-	u64	gdtr_base;
-	u64	idtr_base;
-	u64	ldtr_base;
-
-	u8	reserved4[84];
-
-	u32	smm_revision;
-	u32	smbase;
-
-	u16	io_restart;
-	u16	autohalt_restart;
-
-	u8	reserved5[24];
-
-	u64	r15;
-	u64	r14;
-	u64	r13;
-	u64	r12;
-	u64	r11;
-	u64	r10;
-	u64	r9;
-	u64	r8;
-
-	u64	rax;
-	u64	rcx;
-	u64	rdx;
-	u64	rbx;
-
-	u64	rsp;
-	u64	rbp;
-	u64	rsi;
-	u64	rdi;
-
-
-	u64	io_mem_addr;
-	u32	io_misc_info;
-
-	u32	es_sel;
-	u32	cs_sel;
-	u32	ss_sel;
-	u32	ds_sel;
-	u32	fs_sel;
-	u32	gs_sel;
-
-	u32	ldtr_sel;
-	u32	tr_sel;
-
-	u64	dr7;
-	u64	dr6;
-	u64	rip;
-	u64	efer;
-	u64	rflags;
-
-	u64	cr3;
-	u64	cr0;
-} __packed em64t_smm_state_save_area_t;
-
-#endif