diff options
Diffstat (limited to 'src/cpu/amd/model_gx2/vsmsetup.c')
| -rw-r--r-- | src/cpu/amd/model_gx2/vsmsetup.c | 222 |
1 files changed, 0 insertions, 222 deletions
diff --git a/src/cpu/amd/model_gx2/vsmsetup.c b/src/cpu/amd/model_gx2/vsmsetup.c deleted file mode 100644 index a284a9c726..0000000000 --- a/src/cpu/amd/model_gx2/vsmsetup.c +++ /dev/null @@ -1,222 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2000 Erik Arjan Hendriks - * Copyright (C) 2000 Scyld Computing Corporation - * Copyright (C) 2001 University of California. LA-CC Number 01-67. - * Copyright (C) 2005 Nick.Barker9@btinternet.com - * Copyright (C) 2007 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; either version 2 of the License, or - * (at your option) any later version. - * - * 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. - * - * LA-CC is the Los Alamos Control and Compliance Number, see also: - * http://supply.lanl.gov/property/customs/eximguide/default.shtml - */ - -#include <console/console.h> -#include <device/device.h> -#include <device/pci.h> -#include <string.h> -#include <cpu/cpu.h> -#include <cpu/x86/lapic.h> -#include <cpu/x86/cache.h> -#include <arch/io.h> -#include <cbfs.h> - -void do_vsmbios(void); - -#define VSA2_BUFFER 0x60000 -#define VSA2_ENTRY_POINT 0x60020 -#define VSA2_SIGNATURE 0x56534132 // 'VSA2' returned in EAX -#define SIGNATURE 0x03 -/** - * TODO. - * - * The address arguments to this function are PHYSICAL ADDRESSES! - * - * @param smm TODO. - * @param sysm TODO. - */ -static void real_mode_switch_call_vsm(unsigned long smm, unsigned long sysm) -{ - u16 entryHi = (VSA2_ENTRY_POINT & 0xffff0000) >> 4; - u16 entryLo = (VSA2_ENTRY_POINT & 0xffff); - - __asm__ __volatile__( - /* Paranoia -- does ecx get saved? not sure. This is - * the easiest safe thing to do. - */ - " pushal \n" - /* Save the stack. */ - " mov %%esp, __stack \n" - " jmp 1f \n" - "__stack: .long 0 \n" - "1:\n" - /* Get devfn into %%ecx. */ - " movl %%esp, %%ebp \n" - /* Get the smm and sysm args into ecx and edx. */ - " movl %0, %%ecx \n" - " movl %1, %%edx \n" - /* Load 'our' gdt. */ - " lgdt %%cs:__mygdtaddr \n" - /* This configures CS properly for real mode. */ - " ljmp $0x28, $__rms_16bit\n" - "__rms_16bit: \n" - " .code16 \n" - /* 16 bit code from here on... */ - /* Load the segment registers with properly configured segment - * descriptors. They will retain these configurations (limits, - * writability, etc.) once protected mode is turned off. - */ - " mov $0x30, %%ax \n" - " mov %%ax, %%ds \n" - " mov %%ax, %%es \n" - " mov %%ax, %%fs \n" - " mov %%ax, %%gs \n" - " mov %%ax, %%ss \n" - /* Turn off protection (bit 0 in CR0). */ - " movl %%cr0, %%eax \n" - " andl $0xFFFFFFFE, %%eax \n" - " movl %%eax, %%cr0 \n" - /* Now really going into real mode. */ - " ljmp $0, $__rms_real\n" - "__rms_real: \n" - - /* Put the stack at the end of page zero. - * That way we can easily share it between real and protected, - * since the 16-bit ESP at segment 0 will work for any case. - */ - - /* Setup a stack. */ - " mov $0x0, %%ax \n" - " mov %%ax, %%ss \n" - " movl $0x1000, %%eax \n" - " movl %%eax, %%esp \n" - /* Dump zeros in the other segregs. */ - " mov %%ax, %%es \n" - /* FIXME: Big real mode for gs, fs? */ - " mov %%ax, %%fs \n" - " mov %%ax, %%gs \n" - " mov $0x40, %%ax \n" - " mov %%ax, %%ds \n" - /* " mov %%cx, %%ax \n" */ - " movl %0, %%ecx \n" - " movl %1, %%edx \n" - /* Call the VSA2 entry point address. */ - " lcall %2, %3\n" - /* If we got here, just about done. - * Need to get back to protected mode. - */ - " movl %%cr0, %%eax \n" - " orl $0x0000001, %%eax\n" /* PE = 1 */ - " movl %%eax, %%cr0 \n" - /* Now that we are in protected mode, - * jump to a 32 bit code segment. - */ - " data32 ljmp $0x10, $vsmrestart\n" - "vsmrestart:\n" - " .code32\n" - " movw $0x18, %%ax \n" - " mov %%ax, %%ds \n" - " mov %%ax, %%es \n" - " mov %%ax, %%fs \n" - " mov %%ax, %%gs \n" - " mov %%ax, %%ss \n" - /* Restore proper gdt. */ - " lgdt %%cs:gdtarg \n" - ".globl vsm_exit \n" - "vsm_exit: \n" - " mov __stack, %%esp \n" - " popal \n":: - "g" (smm), "g"(sysm), "g"(entryHi), "g"(entryLo) - ); -} - -__asm__(".text\n" "real_mode_switch_end:\n"); -extern char real_mode_switch_end[]; - -/* andrei: Some VSA virtual register helpers: raw read and MSR read. */ - -static u32 VSA_vrRead(u16 classIndex) -{ - unsigned eax, ebx, ecx, edx; - asm volatile ( - "movw $0x0AC1C, %%dx \n" - "orl $0x0FC530000, %%eax \n" - "outl %%eax, %%dx \n" - "addb $2, %%dl \n" - "inw %%dx, %%ax \n" - : "=a" (eax), "=b"(ebx), "=c"(ecx), "=d"(edx) - : "a"(classIndex) - ); - - return eax; -} - -static u32 VSA_msrRead(u32 msrAddr) -{ - unsigned eax, ebx, ecx, edx; - asm volatile ( - "movw $0x0AC1C, %%dx \n" - "movl $0x0FC530007, %%eax \n" - "outl %%eax, %%dx \n" - "addb $2, %%dl \n" - "inw %%dx, %%ax \n" - : "=a" (eax), "=b"(ebx), "=c"(ecx), "=d"(edx) - : "c"(msrAddr) - ); - - return eax; -} - -void do_vsmbios(void) -{ - unsigned char *buf; - int i; - - printk(BIOS_ERR, "do_vsmbios\n"); - /* Clear VSM BIOS data area. */ - for (i = 0x400; i < 0x500; i++) - *(volatile unsigned char *)i = 0; - if ((unsigned int)cbfs_load_stage("vsa") != VSA2_ENTRY_POINT) { - printk(BIOS_ERR, "do_vsmbios: Failed to load VSA.\n"); - } - buf = VSA2_BUFFER; - - printk(BIOS_DEBUG, "buf[0x20] signature is %x:%x:%x:%x\n", - buf[0x20], buf[0x21], buf[0x22], buf[0x23]); - /* Check for POST code at start of vsainit.bin. If you don't see it, - * don't bother. - */ - if ((buf[0x20] != 0xb0) || (buf[0x21] != 0x10) || - (buf[0x22] != 0xe6) || (buf[0x23] != 0x80)) { - die("FATAL: no vsainit.bin signature, skipping!\n"); - } - - /* ecx gets smm, edx gets sysm. */ - printk(BIOS_ERR, "Call real_mode_switch_call_vsm\n"); -// real_mode_switch_call_vsm(MSR_GLIU0_SMM, MSR_GLIU0_SYSMEM); - - /* Restart Timer 1. */ - outb(0x56, 0x43); - outb(0x12, 0x41); - - /* Check that VSA is running OK. */ - if (VSA_vrRead(SIGNATURE) == VSA2_SIGNATURE) - printk(BIOS_DEBUG, "do_vsmbios: VSA2 VR signature verified\n"); - else - die("FATAL: VSA2 VR signature not valid, install failed!\n"); -} - |