mptbl.c revision 244167
1221828Sgrehan/*- 2242131Sgrehan * Copyright (c) 2012 NetApp, Inc. 3221828Sgrehan * All rights reserved. 4221828Sgrehan * 5221828Sgrehan * Redistribution and use in source and binary forms, with or without 6221828Sgrehan * modification, are permitted provided that the following conditions 7221828Sgrehan * are met: 8221828Sgrehan * 1. Redistributions of source code must retain the above copyright 9221828Sgrehan * notice, this list of conditions and the following disclaimer. 10221828Sgrehan * 2. Redistributions in binary form must reproduce the above copyright 11221828Sgrehan * notice, this list of conditions and the following disclaimer in the 12221828Sgrehan * documentation and/or other materials provided with the distribution. 13221828Sgrehan * 14221828Sgrehan * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 15221828Sgrehan * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16221828Sgrehan * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17221828Sgrehan * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 18221828Sgrehan * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19221828Sgrehan * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20221828Sgrehan * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21221828Sgrehan * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22221828Sgrehan * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23221828Sgrehan * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24221828Sgrehan * SUCH DAMAGE. 25221828Sgrehan * 26221828Sgrehan * $FreeBSD$ 27221828Sgrehan */ 28221828Sgrehan 29221828Sgrehan#include <sys/cdefs.h> 30221828Sgrehan__FBSDID("$FreeBSD$"); 31221828Sgrehan 32221828Sgrehan#include <sys/types.h> 33242131Sgrehan#include <sys/errno.h> 34242131Sgrehan#include <x86/mptable.h> 35221828Sgrehan 36221828Sgrehan#include <stdio.h> 37221828Sgrehan#include <string.h> 38221828Sgrehan 39244167Sgrehan#include "bhyverun.h" 40242131Sgrehan#include "mptbl.h" 41221828Sgrehan 42242131Sgrehan#define MPTABLE_BASE 0xF0000 43221828Sgrehan 44242131Sgrehan#define LAPIC_PADDR 0xFEE00000 45242131Sgrehan#define LAPIC_VERSION 16 46221828Sgrehan 47242131Sgrehan#define IOAPIC_PADDR 0xFEC00000 48242131Sgrehan#define IOAPIC_VERSION 0x11 49221828Sgrehan 50242131Sgrehan#define MP_SPECREV 4 51242131Sgrehan#define MPFP_SIG "_MP_" 52242131Sgrehan 53242131Sgrehan/* Configuration header defines */ 54242131Sgrehan#define MPCH_SIG "PCMP" 55242131Sgrehan#define MPCH_OEMID "BHyVe " 56242131Sgrehan#define MPCH_OEMID_LEN 8 57242131Sgrehan#define MPCH_PRODID "Hypervisor " 58242131Sgrehan#define MPCH_PRODID_LEN 12 59242131Sgrehan 60242131Sgrehan/* Processor entry defines */ 61242131Sgrehan#define MPEP_SIG_FAMILY 6 /* XXX bhyve should supply this */ 62242131Sgrehan#define MPEP_SIG_MODEL 26 63242131Sgrehan#define MPEP_SIG_STEPPING 5 64242131Sgrehan#define MPEP_SIG \ 65242131Sgrehan ((MPEP_SIG_FAMILY << 8) | \ 66242131Sgrehan (MPEP_SIG_MODEL << 4) | \ 67242131Sgrehan (MPEP_SIG_STEPPING)) 68242131Sgrehan 69242131Sgrehan#define MPEP_FEATURES (0xBFEBFBFF) /* XXX Intel i7 */ 70242131Sgrehan 71242131Sgrehan/* Define processor entry struct since <x86/mptable.h> gets it wrong */ 72242131Sgrehantypedef struct BPROCENTRY { 73242131Sgrehan u_char type; 74242131Sgrehan u_char apic_id; 75242131Sgrehan u_char apic_version; 76242131Sgrehan u_char cpu_flags; 77242131Sgrehan uint32_t cpu_signature; 78242131Sgrehan uint32_t feature_flags; 79242131Sgrehan uint32_t reserved1; 80242131Sgrehan uint32_t reserved2; 81242131Sgrehan} *bproc_entry_ptr; 82242131SgrehanCTASSERT(sizeof(struct BPROCENTRY) == 20); 83242131Sgrehan 84242131Sgrehan/* Bus entry defines */ 85242131Sgrehan#define MPE_NUM_BUSES 2 86242131Sgrehan#define MPE_BUSNAME_LEN 6 87242131Sgrehan#define MPE_BUSNAME_ISA "ISA " 88242131Sgrehan#define MPE_BUSNAME_PCI "PCI " 89242131Sgrehan 90242131Sgrehanstatic void *oem_tbl_start; 91242131Sgrehanstatic int oem_tbl_size; 92242131Sgrehan 93221828Sgrehanstatic uint8_t 94242131Sgrehanmpt_compute_checksum(void *base, size_t len) 95221828Sgrehan{ 96242131Sgrehan uint8_t *bytes; 97242131Sgrehan uint8_t sum; 98242131Sgrehan 99242131Sgrehan for(bytes = base, sum = 0; len > 0; len--) { 100221828Sgrehan sum += *bytes++; 101221828Sgrehan } 102242131Sgrehan 103242131Sgrehan return (256 - sum); 104221828Sgrehan} 105221828Sgrehan 106221828Sgrehanstatic void 107242131Sgrehanmpt_build_mpfp(mpfps_t mpfp, vm_paddr_t gpa) 108221828Sgrehan{ 109242131Sgrehan 110221828Sgrehan memset(mpfp, 0, sizeof(*mpfp)); 111242131Sgrehan memcpy(mpfp->signature, MPFP_SIG, 4); 112242131Sgrehan mpfp->pap = gpa + sizeof(*mpfp); 113242131Sgrehan mpfp->length = 1; 114242131Sgrehan mpfp->spec_rev = MP_SPECREV; 115242131Sgrehan mpfp->checksum = mpt_compute_checksum(mpfp, sizeof(*mpfp)); 116221828Sgrehan} 117221828Sgrehan 118221828Sgrehanstatic void 119242131Sgrehanmpt_build_mpch(mpcth_t mpch) 120221828Sgrehan{ 121242131Sgrehan 122221828Sgrehan memset(mpch, 0, sizeof(*mpch)); 123242131Sgrehan memcpy(mpch->signature, MPCH_SIG, 4); 124242131Sgrehan mpch->spec_rev = MP_SPECREV; 125242131Sgrehan memcpy(mpch->oem_id, MPCH_OEMID, MPCH_OEMID_LEN); 126242131Sgrehan memcpy(mpch->product_id, MPCH_PRODID, MPCH_PRODID_LEN); 127242131Sgrehan mpch->apic_address = LAPIC_PADDR; 128221828Sgrehan} 129221828Sgrehan 130221828Sgrehanstatic void 131242131Sgrehanmpt_build_proc_entries(bproc_entry_ptr mpep, int ncpu) 132221828Sgrehan{ 133221828Sgrehan int i; 134221828Sgrehan 135242131Sgrehan for (i = 0; i < ncpu; i++) { 136221828Sgrehan memset(mpep, 0, sizeof(*mpep)); 137242131Sgrehan mpep->type = MPCT_ENTRY_PROCESSOR; 138242131Sgrehan mpep->apic_id = i; // XXX 139242131Sgrehan mpep->apic_version = LAPIC_VERSION; 140242131Sgrehan mpep->cpu_flags = PROCENTRY_FLAG_EN; 141242131Sgrehan if (i == 0) 142242131Sgrehan mpep->cpu_flags |= PROCENTRY_FLAG_BP; 143242131Sgrehan mpep->cpu_signature = MPEP_SIG; 144221828Sgrehan mpep->feature_flags = MPEP_FEATURES; 145221828Sgrehan mpep++; 146221828Sgrehan } 147221828Sgrehan} 148221828Sgrehan 149221828Sgrehanstatic void 150242131Sgrehanmpt_build_bus_entries(bus_entry_ptr mpeb) 151221828Sgrehan{ 152242131Sgrehan 153221828Sgrehan memset(mpeb, 0, sizeof(*mpeb)); 154242131Sgrehan mpeb->type = MPCT_ENTRY_BUS; 155242131Sgrehan mpeb->bus_id = ISA; 156242131Sgrehan memcpy(mpeb->bus_type, MPE_BUSNAME_ISA, MPE_BUSNAME_LEN); 157221828Sgrehan mpeb++; 158221828Sgrehan 159221828Sgrehan memset(mpeb, 0, sizeof(*mpeb)); 160242131Sgrehan mpeb->type = MPCT_ENTRY_BUS; 161242131Sgrehan mpeb->bus_id = PCI; 162242131Sgrehan memcpy(mpeb->bus_type, MPE_BUSNAME_PCI, MPE_BUSNAME_LEN); 163221828Sgrehan} 164221828Sgrehan 165221828Sgrehanstatic void 166242131Sgrehanmpt_build_ioapic_entries(io_apic_entry_ptr mpei, int id) 167221828Sgrehan{ 168242131Sgrehan 169221828Sgrehan memset(mpei, 0, sizeof(*mpei)); 170242131Sgrehan mpei->type = MPCT_ENTRY_IOAPIC; 171242131Sgrehan mpei->apic_id = id; 172242131Sgrehan mpei->apic_version = IOAPIC_VERSION; 173242131Sgrehan mpei->apic_flags = IOAPICENTRY_FLAG_EN; 174242131Sgrehan mpei->apic_address = IOAPIC_PADDR; 175221828Sgrehan} 176221828Sgrehan 177239042Sneel#ifdef notyet 178221828Sgrehanstatic void 179242131Sgrehanmpt_build_ioint_entries(struct mpe_ioint *mpeii, int num_pins, int id) 180221828Sgrehan{ 181221828Sgrehan int pin; 182221828Sgrehan 183221828Sgrehan /* 184221828Sgrehan * The following config is taken from kernel mptable.c 185221828Sgrehan * mptable_parse_default_config_ints(...), for now 186221828Sgrehan * just use the default config, tweek later if needed. 187221828Sgrehan */ 188221828Sgrehan 189221828Sgrehan 190221828Sgrehan /* Run through all 16 pins. */ 191221828Sgrehan for (pin = 0; pin < num_pins; pin++) { 192221828Sgrehan memset(mpeii, 0, sizeof(*mpeii)); 193221828Sgrehan mpeii->entry_type = MP_ENTRY_IOINT; 194221828Sgrehan mpeii->src_bus_id = MPE_BUSID_ISA; 195239042Sneel mpeii->dst_apic_id = id; 196221828Sgrehan 197221828Sgrehan /* 198242131Sgrehan * All default configs route IRQs from bus 0 to the first 16 199242131Sgrehan * pins of the first I/O APIC with an APIC ID of 2. 200221828Sgrehan */ 201221828Sgrehan mpeii->dst_apic_intin = pin; 202221828Sgrehan switch (pin) { 203221828Sgrehan case 0: 204221828Sgrehan /* Pin 0 is an ExtINT pin. */ 205221828Sgrehan mpeii->intr_type = MPEII_INTR_EXTINT; 206221828Sgrehan break; 207221828Sgrehan case 2: 208221828Sgrehan /* IRQ 0 is routed to pin 2. */ 209221828Sgrehan mpeii->intr_type = MPEII_INTR_INT; 210221828Sgrehan mpeii->src_bus_irq = 0; 211221828Sgrehan break; 212221828Sgrehan case 5: 213221828Sgrehan case 10: 214221828Sgrehan case 11: 215221828Sgrehan /* 216221828Sgrehan * PCI Irqs set to level triggered. 217221828Sgrehan */ 218221828Sgrehan mpeii->intr_flags = MPEII_FLAGS_TRIGMODE_LEVEL; 219221828Sgrehan mpeii->src_bus_id = MPE_BUSID_PCI; 220221828Sgrehan default: 221221828Sgrehan /* All other pins are identity mapped. */ 222221828Sgrehan mpeii->intr_type = MPEII_INTR_INT; 223221828Sgrehan mpeii->src_bus_irq = pin; 224221828Sgrehan break; 225221828Sgrehan } 226221828Sgrehan mpeii++; 227221828Sgrehan } 228221828Sgrehan 229221828Sgrehan} 230221828Sgrehan 231221828Sgrehan#define COPYSTR(dest, src, bytes) \ 232221828Sgrehan memcpy(dest, src, bytes); \ 233221828Sgrehan str[bytes] = 0; 234221828Sgrehan 235221828Sgrehanstatic void 236221828Sgrehanmptable_dump(struct mp_floating_pointer *mpfp, struct mp_config_hdr *mpch) 237221828Sgrehan{ 238221828Sgrehan static char str[16]; 239221828Sgrehan int i; 240221828Sgrehan char *cur; 241221828Sgrehan 242221828Sgrehan union mpe { 243221828Sgrehan struct mpe_proc *proc; 244221828Sgrehan struct mpe_bus *bus; 245221828Sgrehan struct mpe_ioapic *ioapic; 246221828Sgrehan struct mpe_ioint *ioint; 247221828Sgrehan struct mpe_lint *lnit; 248221828Sgrehan char *p; 249221828Sgrehan }; 250221828Sgrehan 251221828Sgrehan union mpe mpe; 252221828Sgrehan 253221828Sgrehan printf(" MP Floating Pointer :\n"); 254221828Sgrehan COPYSTR(str, mpfp->signature, 4); 255242131Sgrehan printf("\tsignature:\t%s\n", str); 256242131Sgrehan printf("\tmpch paddr:\t%x\n", mpfp->mptable_paddr); 257242131Sgrehan printf("\tlength:\t%x\n", mpfp->length); 258242131Sgrehan printf("\tspecrec:\t%x\n", mpfp->specrev); 259242131Sgrehan printf("\tchecksum:\t%x\n", mpfp->checksum); 260242131Sgrehan printf("\tfeature1:\t%x\n", mpfp->feature1); 261242131Sgrehan printf("\tfeature2:\t%x\n", mpfp->feature2); 262242131Sgrehan printf("\tfeature3:\t%x\n", mpfp->feature3); 263242131Sgrehan printf("\tfeature4:\t%x\n", mpfp->feature4); 264221828Sgrehan 265221828Sgrehan printf(" MP Configuration Header :\n"); 266221828Sgrehan COPYSTR(str, mpch->signature, 4); 267221828Sgrehan printf(" signature: %s\n", str); 268221828Sgrehan printf(" length: %x\n", mpch->length); 269221828Sgrehan printf(" specrec: %x\n", mpch->specrev); 270221828Sgrehan printf(" checksum: %x\n", mpch->checksum); 271221828Sgrehan COPYSTR(str, mpch->oemid, MPCH_OEMID_LEN); 272221828Sgrehan printf(" oemid: %s\n", str); 273221828Sgrehan COPYSTR(str, mpch->prodid, MPCH_PRODID_LEN); 274221828Sgrehan printf(" prodid: %s\n", str); 275221828Sgrehan printf(" oem_ptr: %x\n", mpch->oem_ptr); 276221828Sgrehan printf(" oem_sz: %x\n", mpch->oem_sz); 277221828Sgrehan printf(" nr_entries: %x\n", mpch->nr_entries); 278221828Sgrehan printf(" apic paddr: %x\n", mpch->lapic_paddr); 279221828Sgrehan printf(" ext_length: %x\n", mpch->ext_length); 280221828Sgrehan printf(" ext_checksum: %x\n", mpch->ext_checksum); 281221828Sgrehan 282221828Sgrehan cur = (char *)mpch + sizeof(*mpch); 283221828Sgrehan for (i = 0; i < mpch->nr_entries; i++) { 284221828Sgrehan mpe.p = cur; 285221828Sgrehan switch(*mpe.p) { 286221828Sgrehan case MP_ENTRY_PROC: 287221828Sgrehan printf(" MP Processor Entry :\n"); 288221828Sgrehan printf(" lapic_id: %x\n", mpe.proc->lapic_id); 289221828Sgrehan printf(" lapic_version: %x\n", mpe.proc->lapic_version); 290221828Sgrehan printf(" proc_flags: %x\n", mpe.proc->proc_flags); 291221828Sgrehan printf(" proc_signature: %x\n", mpe.proc->proc_signature); 292221828Sgrehan printf(" feature_flags: %x\n", mpe.proc->feature_flags); 293221828Sgrehan cur += sizeof(struct mpe_proc); 294221828Sgrehan break; 295221828Sgrehan case MP_ENTRY_BUS: 296221828Sgrehan printf(" MP Bus Entry :\n"); 297221828Sgrehan printf(" busid: %x\n", mpe.bus->busid); 298221828Sgrehan COPYSTR(str, mpe.bus->busname, MPE_BUSNAME_LEN); 299221828Sgrehan printf(" busname: %s\n", str); 300221828Sgrehan cur += sizeof(struct mpe_bus); 301221828Sgrehan break; 302221828Sgrehan case MP_ENTRY_IOAPIC: 303221828Sgrehan printf(" MP IOAPIC Entry :\n"); 304221828Sgrehan printf(" ioapi_id: %x\n", mpe.ioapic->ioapic_id); 305221828Sgrehan printf(" ioapi_version: %x\n", mpe.ioapic->ioapic_version); 306221828Sgrehan printf(" ioapi_flags: %x\n", mpe.ioapic->ioapic_flags); 307221828Sgrehan printf(" ioapi_paddr: %x\n", mpe.ioapic->ioapic_paddr); 308221828Sgrehan cur += sizeof(struct mpe_ioapic); 309221828Sgrehan break; 310221828Sgrehan case MP_ENTRY_IOINT: 311221828Sgrehan printf(" MP IO Interrupt Entry :\n"); 312221828Sgrehan printf(" intr_type: %x\n", mpe.ioint->intr_type); 313221828Sgrehan printf(" intr_flags: %x\n", mpe.ioint->intr_flags); 314221828Sgrehan printf(" src_bus_id: %x\n", mpe.ioint->src_bus_id); 315221828Sgrehan printf(" src_bus_irq: %x\n", mpe.ioint->src_bus_irq); 316221828Sgrehan printf(" dst_apic_id: %x\n", mpe.ioint->dst_apic_id); 317221828Sgrehan printf(" dst_apic_intin: %x\n", mpe.ioint->dst_apic_intin); 318221828Sgrehan cur += sizeof(struct mpe_ioint); 319221828Sgrehan break; 320221828Sgrehan case MP_ENTRY_LINT: 321221828Sgrehan printf(" MP Local Interrupt Entry :\n"); 322221828Sgrehan cur += sizeof(struct mpe_lint); 323221828Sgrehan break; 324221828Sgrehan } 325221828Sgrehan 326221828Sgrehan } 327221828Sgrehan} 328221942Sjhb#endif 329221828Sgrehan 330242131Sgrehanvoid 331242131Sgrehanmptable_add_oemtbl(void *tbl, int tblsz) 332242131Sgrehan{ 333242131Sgrehan 334242131Sgrehan oem_tbl_start = tbl; 335242131Sgrehan oem_tbl_size = tblsz; 336242131Sgrehan} 337242131Sgrehan 338221828Sgrehanint 339242131Sgrehanmptable_build(struct vmctx *ctx, int ncpu, int ioapic) 340221828Sgrehan{ 341242131Sgrehan mpcth_t mpch; 342242131Sgrehan bus_entry_ptr mpeb; 343242131Sgrehan io_apic_entry_ptr mpei; 344242131Sgrehan bproc_entry_ptr mpep; 345242131Sgrehan mpfps_t mpfp; 346242131Sgrehan char *curraddr; 347221828Sgrehan char *startaddr; 348221828Sgrehan 349242131Sgrehan if (paddr_guest2host(0) == NULL) { 350242131Sgrehan printf("mptable requires mapped mem\n"); 351242131Sgrehan return (ENOMEM); 352221828Sgrehan } 353221828Sgrehan 354242131Sgrehan startaddr = curraddr = paddr_guest2host(MPTABLE_BASE); 355221828Sgrehan 356242131Sgrehan mpfp = (mpfps_t)curraddr; 357242131Sgrehan mpt_build_mpfp(mpfp, MPTABLE_BASE); 358242131Sgrehan curraddr += sizeof(*mpfp); 359221828Sgrehan 360242131Sgrehan mpch = (mpcth_t)curraddr; 361242131Sgrehan mpt_build_mpch(mpch); 362242131Sgrehan curraddr += sizeof(*mpch); 363221828Sgrehan 364242131Sgrehan mpep = (bproc_entry_ptr)curraddr; 365242131Sgrehan mpt_build_proc_entries(mpep, ncpu); 366242131Sgrehan curraddr += sizeof(*mpep) * ncpu; 367242131Sgrehan mpch->entry_count += ncpu; 368221828Sgrehan 369242131Sgrehan mpeb = (bus_entry_ptr) curraddr; 370242131Sgrehan mpt_build_bus_entries(mpeb); 371242131Sgrehan curraddr += sizeof(*mpeb) * MPE_NUM_BUSES; 372242131Sgrehan mpch->entry_count += MPE_NUM_BUSES; 373242131Sgrehan 374239042Sneel if (ioapic) { 375242131Sgrehan mpei = (io_apic_entry_ptr)curraddr; 376242131Sgrehan mpt_build_ioapic_entries(mpei, ncpu + 1); 377242131Sgrehan curraddr += sizeof(*mpei); 378242131Sgrehan mpch->entry_count++; 379239042Sneel } 380239042Sneel 381239042Sneel#ifdef notyet 382242131Sgrehan mpt_build_ioint_entries((struct mpe_ioint*)curraddr, MPEII_MAX_IRQ, 383239042Sneel ncpu + 1); 384242131Sgrehan curraddr += sizeof(struct mpe_ioint) * MPEII_MAX_IRQ; 385242131Sgrehan mpch->entry_count += MPEII_MAX_IRQ; 386242131Sgrehan#endif 387221828Sgrehan 388242131Sgrehan if (oem_tbl_start) { 389242131Sgrehan mpch->oem_table_pointer = curraddr - startaddr + MPTABLE_BASE; 390242131Sgrehan mpch->oem_table_size = oem_tbl_size; 391242131Sgrehan memcpy(curraddr, oem_tbl_start, oem_tbl_size); 392221828Sgrehan } 393221828Sgrehan 394242131Sgrehan mpch->base_table_length = curraddr - (char *)mpch; 395242131Sgrehan mpch->checksum = mpt_compute_checksum(mpch, sizeof(*mpch)); 396221828Sgrehan 397242131Sgrehan return (0); 398221828Sgrehan} 399