diff --git a/.gitignore b/.gitignore index 60dd6db..7e511e4 100644 --- a/.gitignore +++ b/.gitignore @@ -10,3 +10,5 @@ tests/boot/rootfs/ guest/init guest/init_stage2 KVMTOOLS-VERSION-FILE +/x86/bios/bios.bin +/x86/bios/bios.bin.elf diff --git a/x86/bios/int10.c b/x86/bios/int10.c index 7cc0b3f..4a3813d 100644 --- a/x86/bios/int10.c +++ b/x86/bios/int10.c @@ -4,7 +4,7 @@ #include "bios/memcpy.h" -#include +#include "asm/bios/vesa.h" static far_ptr gen_far_ptr(unsigned int pa) { diff --git a/x86/include/asm/apicdef.h b/x86/include/asm/apicdef.h new file mode 100644 index 0000000..c46bb99 --- /dev/null +++ b/x86/include/asm/apicdef.h @@ -0,0 +1,445 @@ +#ifndef _ASM_X86_APICDEF_H +#define _ASM_X86_APICDEF_H + +/* + * Constants for various Intel APICs. (local APIC, IOAPIC, etc.) + * + * Alan Cox , 1995. + * Ingo Molnar , 1999, 2000 + */ + +#define IO_APIC_DEFAULT_PHYS_BASE 0xfec00000 +#define APIC_DEFAULT_PHYS_BASE 0xfee00000 + +/* + * This is the IO-APIC register space as specified + * by Intel docs: + */ +#define IO_APIC_SLOT_SIZE 1024 + +#define APIC_ID 0x20 + +#define APIC_LVR 0x30 +#define APIC_LVR_MASK 0xFF00FF +#define APIC_LVR_DIRECTED_EOI (1 << 24) +#define GET_APIC_VERSION(x) ((x) & 0xFFu) +#define GET_APIC_MAXLVT(x) (((x) >> 16) & 0xFFu) +#ifdef CONFIG_X86_32 +# define APIC_INTEGRATED(x) ((x) & 0xF0u) +#else +# define APIC_INTEGRATED(x) (1) +#endif +#define APIC_XAPIC(x) ((x) >= 0x14) +#define APIC_EXT_SPACE(x) ((x) & 0x80000000) +#define APIC_TASKPRI 0x80 +#define APIC_TPRI_MASK 0xFFu +#define APIC_ARBPRI 0x90 +#define APIC_ARBPRI_MASK 0xFFu +#define APIC_PROCPRI 0xA0 +#define APIC_EOI 0xB0 +#define APIC_EOI_ACK 0x0 /* Docs say 0 for future compat. */ +#define APIC_RRR 0xC0 +#define APIC_LDR 0xD0 +#define APIC_LDR_MASK (0xFFu << 24) +#define GET_APIC_LOGICAL_ID(x) (((x) >> 24) & 0xFFu) +#define SET_APIC_LOGICAL_ID(x) (((x) << 24)) +#define APIC_ALL_CPUS 0xFFu +#define APIC_DFR 0xE0 +#define APIC_DFR_CLUSTER 0x0FFFFFFFul +#define APIC_DFR_FLAT 0xFFFFFFFFul +#define APIC_SPIV 0xF0 +#define APIC_SPIV_DIRECTED_EOI (1 << 12) +#define APIC_SPIV_FOCUS_DISABLED (1 << 9) +#define APIC_SPIV_APIC_ENABLED (1 << 8) +#define APIC_ISR 0x100 +#define APIC_ISR_NR 0x8 /* Number of 32 bit ISR registers. */ +#define APIC_TMR 0x180 +#define APIC_IRR 0x200 +#define APIC_ESR 0x280 +#define APIC_ESR_SEND_CS 0x00001 +#define APIC_ESR_RECV_CS 0x00002 +#define APIC_ESR_SEND_ACC 0x00004 +#define APIC_ESR_RECV_ACC 0x00008 +#define APIC_ESR_SENDILL 0x00020 +#define APIC_ESR_RECVILL 0x00040 +#define APIC_ESR_ILLREGA 0x00080 +#define APIC_LVTCMCI 0x2f0 +#define APIC_ICR 0x300 +#define APIC_DEST_SELF 0x40000 +#define APIC_DEST_ALLINC 0x80000 +#define APIC_DEST_ALLBUT 0xC0000 +#define APIC_ICR_RR_MASK 0x30000 +#define APIC_ICR_RR_INVALID 0x00000 +#define APIC_ICR_RR_INPROG 0x10000 +#define APIC_ICR_RR_VALID 0x20000 +#define APIC_INT_LEVELTRIG 0x08000 +#define APIC_INT_ASSERT 0x04000 +#define APIC_ICR_BUSY 0x01000 +#define APIC_DEST_LOGICAL 0x00800 +#define APIC_DEST_PHYSICAL 0x00000 +#define APIC_DM_FIXED 0x00000 +#define APIC_DM_FIXED_MASK 0x00700 +#define APIC_DM_LOWEST 0x00100 +#define APIC_DM_SMI 0x00200 +#define APIC_DM_REMRD 0x00300 +#define APIC_DM_NMI 0x00400 +#define APIC_DM_INIT 0x00500 +#define APIC_DM_STARTUP 0x00600 +#define APIC_DM_EXTINT 0x00700 +#define APIC_VECTOR_MASK 0x000FF +#define APIC_ICR2 0x310 +#define GET_APIC_DEST_FIELD(x) (((x) >> 24) & 0xFF) +#define SET_APIC_DEST_FIELD(x) ((x) << 24) +#define APIC_LVTT 0x320 +#define APIC_LVTTHMR 0x330 +#define APIC_LVTPC 0x340 +#define APIC_LVT0 0x350 +#define APIC_LVT_TIMER_BASE_MASK (0x3 << 18) +#define GET_APIC_TIMER_BASE(x) (((x) >> 18) & 0x3) +#define SET_APIC_TIMER_BASE(x) (((x) << 18)) +#define APIC_TIMER_BASE_CLKIN 0x0 +#define APIC_TIMER_BASE_TMBASE 0x1 +#define APIC_TIMER_BASE_DIV 0x2 +#define APIC_LVT_TIMER_ONESHOT (0 << 17) +#define APIC_LVT_TIMER_PERIODIC (1 << 17) +#define APIC_LVT_TIMER_TSCDEADLINE (2 << 17) +#define APIC_LVT_MASKED (1 << 16) +#define APIC_LVT_LEVEL_TRIGGER (1 << 15) +#define APIC_LVT_REMOTE_IRR (1 << 14) +#define APIC_INPUT_POLARITY (1 << 13) +#define APIC_SEND_PENDING (1 << 12) +#define APIC_MODE_MASK 0x700 +#define GET_APIC_DELIVERY_MODE(x) (((x) >> 8) & 0x7) +#define SET_APIC_DELIVERY_MODE(x, y) (((x) & ~0x700) | ((y) << 8)) +#define APIC_MODE_FIXED 0x0 +#define APIC_MODE_NMI 0x4 +#define APIC_MODE_EXTINT 0x7 +#define APIC_LVT1 0x360 +#define APIC_LVTERR 0x370 +#define APIC_TMICT 0x380 +#define APIC_TMCCT 0x390 +#define APIC_TDCR 0x3E0 +#define APIC_SELF_IPI 0x3F0 +#define APIC_TDR_DIV_TMBASE (1 << 2) +#define APIC_TDR_DIV_1 0xB +#define APIC_TDR_DIV_2 0x0 +#define APIC_TDR_DIV_4 0x1 +#define APIC_TDR_DIV_8 0x2 +#define APIC_TDR_DIV_16 0x3 +#define APIC_TDR_DIV_32 0x8 +#define APIC_TDR_DIV_64 0x9 +#define APIC_TDR_DIV_128 0xA +#define APIC_EFEAT 0x400 +#define APIC_ECTRL 0x410 +#define APIC_EILVTn(n) (0x500 + 0x10 * n) +#define APIC_EILVT_NR_AMD_K8 1 /* # of extended interrupts */ +#define APIC_EILVT_NR_AMD_10H 4 +#define APIC_EILVT_NR_MAX APIC_EILVT_NR_AMD_10H +#define APIC_EILVT_LVTOFF(x) (((x) >> 4) & 0xF) +#define APIC_EILVT_MSG_FIX 0x0 +#define APIC_EILVT_MSG_SMI 0x2 +#define APIC_EILVT_MSG_NMI 0x4 +#define APIC_EILVT_MSG_EXT 0x7 +#define APIC_EILVT_MASKED (1 << 16) + +#define APIC_BASE (fix_to_virt(FIX_APIC_BASE)) +#define APIC_BASE_MSR 0x800 +#define XAPIC_ENABLE (1UL << 11) +#define X2APIC_ENABLE (1UL << 10) + +#ifdef CONFIG_X86_32 +# define MAX_IO_APICS 64 +# define MAX_LOCAL_APIC 256 +#else +# define MAX_IO_APICS 128 +# define MAX_LOCAL_APIC 32768 +#endif + +/* + * All x86-64 systems are xAPIC compatible. + * In the following, "apicid" is a physical APIC ID. + */ +#define XAPIC_DEST_CPUS_SHIFT 4 +#define XAPIC_DEST_CPUS_MASK ((1u << XAPIC_DEST_CPUS_SHIFT) - 1) +#define XAPIC_DEST_CLUSTER_MASK (XAPIC_DEST_CPUS_MASK << XAPIC_DEST_CPUS_SHIFT) +#define APIC_CLUSTER(apicid) ((apicid) & XAPIC_DEST_CLUSTER_MASK) +#define APIC_CLUSTERID(apicid) (APIC_CLUSTER(apicid) >> XAPIC_DEST_CPUS_SHIFT) +#define APIC_CPUID(apicid) ((apicid) & XAPIC_DEST_CPUS_MASK) +#define NUM_APIC_CLUSTERS ((BAD_APICID + 1) >> XAPIC_DEST_CPUS_SHIFT) + +/* + * the local APIC register structure, memory mapped. Not terribly well + * tested, but we might eventually use this one in the future - the + * problem why we cannot use it right now is the P5 APIC, it has an + * errata which cannot take 8-bit reads and writes, only 32-bit ones ... + */ +#define u32 unsigned int + +struct local_apic { + +/*000*/ struct { u32 __reserved[4]; } __reserved_01; + +/*010*/ struct { u32 __reserved[4]; } __reserved_02; + +/*020*/ struct { /* APIC ID Register */ + u32 __reserved_1 : 24, + phys_apic_id : 4, + __reserved_2 : 4; + u32 __reserved[3]; + } id; + +/*030*/ const + struct { /* APIC Version Register */ + u32 version : 8, + __reserved_1 : 8, + max_lvt : 8, + __reserved_2 : 8; + u32 __reserved[3]; + } version; + +/*040*/ struct { u32 __reserved[4]; } __reserved_03; + +/*050*/ struct { u32 __reserved[4]; } __reserved_04; + +/*060*/ struct { u32 __reserved[4]; } __reserved_05; + +/*070*/ struct { u32 __reserved[4]; } __reserved_06; + +/*080*/ struct { /* Task Priority Register */ + u32 priority : 8, + __reserved_1 : 24; + u32 __reserved_2[3]; + } tpr; + +/*090*/ const + struct { /* Arbitration Priority Register */ + u32 priority : 8, + __reserved_1 : 24; + u32 __reserved_2[3]; + } apr; + +/*0A0*/ const + struct { /* Processor Priority Register */ + u32 priority : 8, + __reserved_1 : 24; + u32 __reserved_2[3]; + } ppr; + +/*0B0*/ struct { /* End Of Interrupt Register */ + u32 eoi; + u32 __reserved[3]; + } eoi; + +/*0C0*/ struct { u32 __reserved[4]; } __reserved_07; + +/*0D0*/ struct { /* Logical Destination Register */ + u32 __reserved_1 : 24, + logical_dest : 8; + u32 __reserved_2[3]; + } ldr; + +/*0E0*/ struct { /* Destination Format Register */ + u32 __reserved_1 : 28, + model : 4; + u32 __reserved_2[3]; + } dfr; + +/*0F0*/ struct { /* Spurious Interrupt Vector Register */ + u32 spurious_vector : 8, + apic_enabled : 1, + focus_cpu : 1, + __reserved_2 : 22; + u32 __reserved_3[3]; + } svr; + +/*100*/ struct { /* In Service Register */ +/*170*/ u32 bitfield; + u32 __reserved[3]; + } isr [8]; + +/*180*/ struct { /* Trigger Mode Register */ +/*1F0*/ u32 bitfield; + u32 __reserved[3]; + } tmr [8]; + +/*200*/ struct { /* Interrupt Request Register */ +/*270*/ u32 bitfield; + u32 __reserved[3]; + } irr [8]; + +/*280*/ union { /* Error Status Register */ + struct { + u32 send_cs_error : 1, + receive_cs_error : 1, + send_accept_error : 1, + receive_accept_error : 1, + __reserved_1 : 1, + send_illegal_vector : 1, + receive_illegal_vector : 1, + illegal_register_address : 1, + __reserved_2 : 24; + u32 __reserved_3[3]; + } error_bits; + struct { + u32 errors; + u32 __reserved_3[3]; + } all_errors; + } esr; + +/*290*/ struct { u32 __reserved[4]; } __reserved_08; + +/*2A0*/ struct { u32 __reserved[4]; } __reserved_09; + +/*2B0*/ struct { u32 __reserved[4]; } __reserved_10; + +/*2C0*/ struct { u32 __reserved[4]; } __reserved_11; + +/*2D0*/ struct { u32 __reserved[4]; } __reserved_12; + +/*2E0*/ struct { u32 __reserved[4]; } __reserved_13; + +/*2F0*/ struct { u32 __reserved[4]; } __reserved_14; + +/*300*/ struct { /* Interrupt Command Register 1 */ + u32 vector : 8, + delivery_mode : 3, + destination_mode : 1, + delivery_status : 1, + __reserved_1 : 1, + level : 1, + trigger : 1, + __reserved_2 : 2, + shorthand : 2, + __reserved_3 : 12; + u32 __reserved_4[3]; + } icr1; + +/*310*/ struct { /* Interrupt Command Register 2 */ + union { + u32 __reserved_1 : 24, + phys_dest : 4, + __reserved_2 : 4; + u32 __reserved_3 : 24, + logical_dest : 8; + } dest; + u32 __reserved_4[3]; + } icr2; + +/*320*/ struct { /* LVT - Timer */ + u32 vector : 8, + __reserved_1 : 4, + delivery_status : 1, + __reserved_2 : 3, + mask : 1, + timer_mode : 1, + __reserved_3 : 14; + u32 __reserved_4[3]; + } lvt_timer; + +/*330*/ struct { /* LVT - Thermal Sensor */ + u32 vector : 8, + delivery_mode : 3, + __reserved_1 : 1, + delivery_status : 1, + __reserved_2 : 3, + mask : 1, + __reserved_3 : 15; + u32 __reserved_4[3]; + } lvt_thermal; + +/*340*/ struct { /* LVT - Performance Counter */ + u32 vector : 8, + delivery_mode : 3, + __reserved_1 : 1, + delivery_status : 1, + __reserved_2 : 3, + mask : 1, + __reserved_3 : 15; + u32 __reserved_4[3]; + } lvt_pc; + +/*350*/ struct { /* LVT - LINT0 */ + u32 vector : 8, + delivery_mode : 3, + __reserved_1 : 1, + delivery_status : 1, + polarity : 1, + remote_irr : 1, + trigger : 1, + mask : 1, + __reserved_2 : 15; + u32 __reserved_3[3]; + } lvt_lint0; + +/*360*/ struct { /* LVT - LINT1 */ + u32 vector : 8, + delivery_mode : 3, + __reserved_1 : 1, + delivery_status : 1, + polarity : 1, + remote_irr : 1, + trigger : 1, + mask : 1, + __reserved_2 : 15; + u32 __reserved_3[3]; + } lvt_lint1; + +/*370*/ struct { /* LVT - Error */ + u32 vector : 8, + __reserved_1 : 4, + delivery_status : 1, + __reserved_2 : 3, + mask : 1, + __reserved_3 : 15; + u32 __reserved_4[3]; + } lvt_error; + +/*380*/ struct { /* Timer Initial Count Register */ + u32 initial_count; + u32 __reserved_2[3]; + } timer_icr; + +/*390*/ const + struct { /* Timer Current Count Register */ + u32 curr_count; + u32 __reserved_2[3]; + } timer_ccr; + +/*3A0*/ struct { u32 __reserved[4]; } __reserved_16; + +/*3B0*/ struct { u32 __reserved[4]; } __reserved_17; + +/*3C0*/ struct { u32 __reserved[4]; } __reserved_18; + +/*3D0*/ struct { u32 __reserved[4]; } __reserved_19; + +/*3E0*/ struct { /* Timer Divide Configuration Register */ + u32 divisor : 4, + __reserved_1 : 28; + u32 __reserved_2[3]; + } timer_dcr; + +/*3F0*/ struct { u32 __reserved[4]; } __reserved_20; + +} __attribute__ ((packed)); + +#undef u32 + +#ifdef CONFIG_X86_32 + #define BAD_APICID 0xFFu +#else + #define BAD_APICID 0xFFFFu +#endif + +enum ioapic_irq_destination_types { + dest_Fixed = 0, + dest_LowestPrio = 1, + dest_SMI = 2, + dest__reserved_1 = 3, + dest_NMI = 4, + dest_INIT = 5, + dest__reserved_2 = 6, + dest_ExtINT = 7 +}; + +#endif /* _ASM_X86_APICDEF_H */ diff --git a/x86/include/asm/bios/vesa.h b/x86/include/asm/bios/vesa.h new file mode 100644 index 0000000..468e444 --- /dev/null +++ b/x86/include/asm/bios/vesa.h @@ -0,0 +1,72 @@ +/* ----------------------------------------------------------------------- * + * + * Copyright 1999-2007 H. Peter Anvin - All Rights Reserved + * + * 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, Inc., 53 Temple Place Ste 330, + * Boston MA 02111-1307, USA; either version 2 of the License, or + * (at your option) any later version; incorporated herein by reference. + * + * ----------------------------------------------------------------------- */ + +#ifndef BOOT_VESA_H +#define BOOT_VESA_H + +typedef struct { + u16 off, seg; +} far_ptr; + +/* VESA General Information table */ +struct vesa_general_info { + u32 signature; /* 0 Magic number = "VESA" */ + u16 version; /* 4 */ + far_ptr vendor_string; /* 6 */ + u32 capabilities; /* 10 */ + far_ptr video_mode_ptr; /* 14 */ + u16 total_memory; /* 18 */ + + u8 reserved[236]; /* 20 */ +} __attribute__ ((packed)); + +#define VESA_MAGIC ('V' + ('E' << 8) + ('S' << 16) + ('A' << 24)) + +struct vesa_mode_info { + u16 mode_attr; /* 0 */ + u8 win_attr[2]; /* 2 */ + u16 win_grain; /* 4 */ + u16 win_size; /* 6 */ + u16 win_seg[2]; /* 8 */ + far_ptr win_scheme; /* 12 */ + u16 logical_scan; /* 16 */ + + u16 h_res; /* 18 */ + u16 v_res; /* 20 */ + u8 char_width; /* 22 */ + u8 char_height; /* 23 */ + u8 memory_planes; /* 24 */ + u8 bpp; /* 25 */ + u8 banks; /* 26 */ + u8 memory_layout; /* 27 */ + u8 bank_size; /* 28 */ + u8 image_planes; /* 29 */ + u8 page_function; /* 30 */ + + u8 rmask; /* 31 */ + u8 rpos; /* 32 */ + u8 gmask; /* 33 */ + u8 gpos; /* 34 */ + u8 bmask; /* 35 */ + u8 bpos; /* 36 */ + u8 resv_mask; /* 37 */ + u8 resv_pos; /* 38 */ + u8 dcm_info; /* 39 */ + + u32 lfb_ptr; /* 40 Linear frame buffer address */ + u32 offscreen_ptr; /* 44 Offscreen memory address */ + u16 offscreen_size; /* 48 */ + + u8 reserved[206]; /* 50 */ +} __attribute__ ((packed)); + +#endif /* LIB_SYS_VESA_H */ diff --git a/x86/include/asm/mpspec_def.h b/x86/include/asm/mpspec_def.h new file mode 100644 index 0000000..b31f8c0 --- /dev/null +++ b/x86/include/asm/mpspec_def.h @@ -0,0 +1,173 @@ +#ifndef _ASM_X86_MPSPEC_DEF_H +#define _ASM_X86_MPSPEC_DEF_H + +/* + * Structure definitions for SMP machines following the + * Intel Multiprocessing Specification 1.1 and 1.4. + */ + +/* + * This tag identifies where the SMP configuration + * information is. + */ + +#define SMP_MAGIC_IDENT (('_'<<24) | ('P'<<16) | ('M'<<8) | '_') + +#ifdef CONFIG_X86_32 +# define MAX_MPC_ENTRY 1024 +#endif + +/* Intel MP Floating Pointer Structure */ +struct mpf_intel { + char signature[4]; /* "_MP_" */ + unsigned int physptr; /* Configuration table address */ + unsigned char length; /* Our length (paragraphs) */ + unsigned char specification; /* Specification version */ + unsigned char checksum; /* Checksum (makes sum 0) */ + unsigned char feature1; /* Standard or configuration ? */ + unsigned char feature2; /* Bit7 set for IMCR|PIC */ + unsigned char feature3; /* Unused (0) */ + unsigned char feature4; /* Unused (0) */ + unsigned char feature5; /* Unused (0) */ +}; + +#define MPC_SIGNATURE "PCMP" + +struct mpc_table { + char signature[4]; + unsigned short length; /* Size of table */ + char spec; /* 0x01 */ + char checksum; + char oem[8]; + char productid[12]; + unsigned int oemptr; /* 0 if not present */ + unsigned short oemsize; /* 0 if not present */ + unsigned short oemcount; + unsigned int lapic; /* APIC address */ + unsigned int reserved; +}; + +/* Followed by entries */ + +#define MP_PROCESSOR 0 +#define MP_BUS 1 +#define MP_IOAPIC 2 +#define MP_INTSRC 3 +#define MP_LINTSRC 4 +/* Used by IBM NUMA-Q to describe node locality */ +#define MP_TRANSLATION 192 + +#define CPU_ENABLED 1 /* Processor is available */ +#define CPU_BOOTPROCESSOR 2 /* Processor is the BP */ + +#define CPU_STEPPING_MASK 0x000F +#define CPU_MODEL_MASK 0x00F0 +#define CPU_FAMILY_MASK 0x0F00 + +struct mpc_cpu { + unsigned char type; + unsigned char apicid; /* Local APIC number */ + unsigned char apicver; /* Its versions */ + unsigned char cpuflag; + unsigned int cpufeature; + unsigned int featureflag; /* CPUID feature value */ + unsigned int reserved[2]; +}; + +struct mpc_bus { + unsigned char type; + unsigned char busid; + unsigned char bustype[6]; +}; + +/* List of Bus Type string values, Intel MP Spec. */ +#define BUSTYPE_EISA "EISA" +#define BUSTYPE_ISA "ISA" +#define BUSTYPE_INTERN "INTERN" /* Internal BUS */ +#define BUSTYPE_MCA "MCA" /* Obsolete */ +#define BUSTYPE_VL "VL" /* Local bus */ +#define BUSTYPE_PCI "PCI" +#define BUSTYPE_PCMCIA "PCMCIA" +#define BUSTYPE_CBUS "CBUS" +#define BUSTYPE_CBUSII "CBUSII" +#define BUSTYPE_FUTURE "FUTURE" +#define BUSTYPE_MBI "MBI" +#define BUSTYPE_MBII "MBII" +#define BUSTYPE_MPI "MPI" +#define BUSTYPE_MPSA "MPSA" +#define BUSTYPE_NUBUS "NUBUS" +#define BUSTYPE_TC "TC" +#define BUSTYPE_VME "VME" +#define BUSTYPE_XPRESS "XPRESS" + +#define MPC_APIC_USABLE 0x01 + +struct mpc_ioapic { + unsigned char type; + unsigned char apicid; + unsigned char apicver; + unsigned char flags; + unsigned int apicaddr; +}; + +struct mpc_intsrc { + unsigned char type; + unsigned char irqtype; + unsigned short irqflag; + unsigned char srcbus; + unsigned char srcbusirq; + unsigned char dstapic; + unsigned char dstirq; +}; + +enum mp_irq_source_types { + mp_INT = 0, + mp_NMI = 1, + mp_SMI = 2, + mp_ExtINT = 3 +}; + +#define MP_IRQDIR_DEFAULT 0 +#define MP_IRQDIR_HIGH 1 +#define MP_IRQDIR_LOW 3 + +#define MP_APIC_ALL 0xFF + +struct mpc_lintsrc { + unsigned char type; + unsigned char irqtype; + unsigned short irqflag; + unsigned char srcbusid; + unsigned char srcbusirq; + unsigned char destapic; + unsigned char destapiclint; +}; + +#define MPC_OEM_SIGNATURE "_OEM" + +struct mpc_oemtable { + char signature[4]; + unsigned short length; /* Size of table */ + char rev; /* 0x01 */ + char checksum; + char mpc[8]; +}; + +/* + * Default configurations + * + * 1 2 CPU ISA 82489DX + * 2 2 CPU EISA 82489DX neither IRQ 0 timer nor IRQ 13 DMA chaining + * 3 2 CPU EISA 82489DX + * 4 2 CPU MCA 82489DX + * 5 2 CPU ISA+PCI + * 6 2 CPU EISA+PCI + * 7 2 CPU MCA+PCI + */ + +enum mp_bustype { + MP_BUS_ISA = 1, + MP_BUS_EISA, + MP_BUS_PCI, +}; +#endif /* _ASM_X86_MPSPEC_DEF_H */