Support for the Intel ICH7 southbridge.

This includes an early SMI handler.

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3701 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

2 files changed, 255 insertions, 2 deletions

diff --git a/src/include/cpu/x86/smm.h b/src/include/cpu/x86/smm.h
new file mode 100644
index 0000000000..72a4782084
--- /dev/null
+++ b/src/include/cpu/x86/smm.h
@@ -0,0 +1,253 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008 coresystems GmbH
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+
+typedef uint64_t u64;
+
+/* AMD64 SMM State-Save Area 
+ * starts @ 0x7e00
+ */
+typedef struct {
+	u16	es_selector;
+	u16	es_attributes;
+	u32	es_limit;
+	u64	es_base;
+
+	u16	cs_selector;
+	u16	cs_attributcs;
+	u32	cs_limit;
+	u64	cs_base;
+
+	u16	ss_selector;
+	u16	ss_attributss;
+	u32	ss_limit;
+	u64	ss_base;
+
+	u16	ds_selector;
+	u16	ds_attributds;
+	u32	ds_limit;
+	u64	ds_base;
+
+	u16	fs_selector;
+	u16	fs_attributfs;
+	u32	fs_limit;
+	u64	fs_base;
+
+	u16	gs_selector;
+	u16	gs_attributgs;
+	u32	gs_limit;
+	u64	gs_base;
+
+	u8	reserved0[4];
+	u16	gdtr_limit;
+	u8	reserved1[2];
+	u64	gdtr_base;
+
+	u16	ldtr_selector;
+	u16	ldtr_attributes;
+	u32	ldtr_limit;
+	u64	ldtr_base;
+
+	u8	reserved2[4];
+	u16	idtr_limit;
+	u8	reserved3[2];
+	u64	idtr_base;
+
+	u16	tr_selector;
+	u16	tr_attributes;
+	u32	tr_limit;
+	u64	tr_base;
+
+	u8	reserved4[40];
+
+	u8	io_restart;
+	u8	autohalt_restart;
+
+	u8	reserved5[6];
+
+	u64	efer;
+
+	u8	reserved6[36];
+
+	u32	smm_revision;
+	u32	smbase;
+
+	u8	reserved7[68];
+
+	u64	cr4;
+	u64	cr3;
+	u64	cr0;
+	u64	dr7;
+	u64	dr6;
+
+	u64	rflags;
+	u64	rip;
+	u64	r15;
+	u64	r14;
+	u64	r13;
+	u64	r12;
+	u64	r11;
+	u64	r10;
+	u64	r9;
+	u64	r8;
+
+	u64	rdi;
+	u64	rsi;
+	u64	rpb;
+	u64	rsp;
+	u64	rbx;
+	u64	rdx;
+	u64	rcx;
+	u64	rax;
+} __attribute__((packed)) amd64_smm_state_save_area_t;
+
+
+/* Intel Core 2 (EM64T) SMM State-Save Area 
+ * starts @ 0x7d00
+ */
+typedef struct {
+	u8	reserved0[208];
+
+	u32	gdtr_upper_base;
+	u32	ldtr_upper_base;
+	u32	idtr_upper_base;
+
+	u8	reserved1[4];
+
+	u64	io_rdi;
+	u64	io_rip;
+	u64	io_rcx;
+	u64	io_rsi;
+	u64	cr4;
+
+	u8	reserved2[68];
+
+	u64	gdtr_base;
+	u64	idtr_base;
+	u64	ldtr_base;
+
+	u8	reserved3[84];
+
+	u32	smm_revision;
+	u32	smbase;
+
+	u16	io_restart;
+	u16	autohalt_restart;
+
+	u8	reserved4[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;
+} __attribute__((packed)) em64t_smm_state_save_area_t;
+
+
+/* Legacy x86 SMM State-Save Area 
+ * starts @ 0x7e00
+ */
+
+typedef struct {
+	u8	reserved0[248];
+	u32	smbase;
+	u32	smm_revision;
+	u16	io_restart;
+	u16	autohalt_restart;
+	u8	reserved1[132];
+	u32	gdtbase;
+	u8	reserved2[8];
+	u32	idtbase;
+	u8	reserved3[16];
+	u32	es;
+	u32	cs;
+	u32	ss;
+	u32	ds;
+	u32	fs;
+	u32	gs;
+	u32	ldtbase;
+	u32	tr;
+	u32	dr7;
+	u32	dr6;
+	u32	eax;
+	u32	ecx;
+	u32	edx;
+	u32	ebx;
+	u32	esp;
+	u32	ebp;
+	u32	esi;
+	u32	edi;
+	u32	eip;
+	u32	eflags;
+	u32	cr3;
+	u32	cr0;
+} __attribute__((packed)) legacy_smm_state_save_area_t;
+
+typedef enum {
+	AMD64,
+	EM64T,
+	LEGACY
+} save_state_type_t;
+
+
+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;
+	legacy_smm_state_save_area_t *legacy_state_save;
+	};
+} smm_state_save_area_t;
+
diff --git a/src/include/device/device.h b/src/include/device/device.h
index 09d163cf59..284c096016 100644
--- a/src/include/device/device.h
+++ b/src/include/device/device.h
@@ -71,7 +71,7 @@ struct device {
 	struct device_path path;
 	unsigned 	vendor;
 	unsigned 	device;
-	unsigned int	class;		/* 3 bytes: (base,sub,prog-if) */
+	unsigned int	class;		/* 3 bytes: (base, sub, prog-if) */
 	unsigned int	hdr_type;	/* PCI header type */
 	unsigned int    enabled : 1;	/* set if we should enable the device */
 	unsigned int    initialized : 1; /* set if we have initialized the device */
@@ -85,7 +85,7 @@ struct device {
 	struct resource resource[MAX_RESOURCES];
 	unsigned int resources;
 
-	/* link are (down sream) buses attached to the device, usually a leaf
+	/* link are (down stream) buses attached to the device, usually a leaf
 	 * device with no children have 0 buses attached and a bridge has 1 bus 
 	 */
 	struct bus link[MAX_LINKS];