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Viewing changes to src/romlayout.S

Committer: Package Import Robot
Author(s): Michael Tokarev
Date: 2013-07-08 21:34:44 UTC
mfrom: (1.1.7)
Revision ID: package-import@ubuntu.com-20130708213444-6ed9q23j39x143lu

Tags: 1.7.3-1

Multi-Arch: allowed

files added:
README.CSM

coreboot-config

src/LegacyBios.h

src/csm.c

src/csm.h

src/list.h

src/post.h

src/ssdt-misc.dsl

files removed:
.pc/1.7.2.2.diff

.pc/1.7.2.2.diff/Makefile

.pc/1.7.2.2.diff/src

.pc/1.7.2.2.diff/src/Kconfig

.pc/1.7.2.2.diff/src/boot.c

.pc/1.7.2.2.diff/src/pciinit.c

.pc/1.7.2.2.diff/src/usb-ehci.c

.pc/1.7.2.2.diff/src/virtio-scsi.c

.pc/1.7.2.2.diff/src/virtio-scsi.h

.pc/1.7.2.2.diff/tools

.pc/1.7.2.2.diff/tools/acpi_extract.py

.pc/1.7.2.2.diff/tools/test-build.sh

debian/patches/1.7.2.2.diff

src/ssdt-susp.dsl

files modified:
.pc/applied-patches

.version

Makefile

README

debian/changelog

debian/control

debian/patches/series

src/Kconfig

src/acpi-dsdt-pci-crs.dsl

src/acpi.c

src/acpi.h

src/ahci.c

src/apm.c

src/ata.c

src/biostables.c

src/biosvar.h

src/block.c

src/blockcmd.c

src/blockcmd.h

src/boot.c

src/boot.h

src/bootsplash.c

src/byteorder.h

src/cdrom.c

src/clock.c

src/cmos.h

src/config.h

src/coreboot.c

src/disk.h

src/entryfuncs.S

src/esp-scsi.c

src/floppy.c

src/kbd.c

src/lsi-scsi.c

src/megasas.c

src/memmap.c

src/memmap.h

src/misc.c

src/mouse.c

src/mptable.c

src/mptable.h

src/mtrr.c

src/optionroms.c

src/optionroms.h

src/output.c

src/paravirt.c

src/paravirt.h

src/pci.c

src/pci.h

src/pcibios.c

src/pciinit.c

src/pic.c

src/pic.h

src/pirtable.c

src/pmm.c

src/pnpbios.c

src/post.c

src/ps2port.c

src/ramdisk.c

src/resume.c

src/romfile.c

src/romlayout.S

src/shadow.c

src/smbios.c

src/smbios.h

src/smm.c

src/smp.c

src/stacks.c

src/system.c

src/types.h

src/usb-ehci.c

src/usb-ehci.h

src/usb-hid.c

src/usb-hid.h

src/usb-hub.c

src/usb-hub.h

src/usb-msc.c

src/usb-msc.h

src/usb-ohci.c

src/usb-ohci.h

src/usb-uas.c

src/usb-uas.h

src/usb-uhci.c

src/usb-uhci.h

src/usb.c

src/util.c

src/util.h

src/vgahooks.c

src/virtio-blk.c

src/virtio-ring.c

src/virtio-scsi.c

src/xen.c

src/xen.h

tools/acpi_extract.py

tools/buildrom.py

tools/checkrom.py

tools/layoutrom.py

tools/layoutrom.pyc

vgasrc/Kconfig

vgasrc/bochsvga.c

vgasrc/bochsvga.h

vgasrc/clext.c

vgasrc/clext.h

vgasrc/geodevga.c

vgasrc/geodevga.h

vgasrc/stdvga.c

vgasrc/stdvga.h

vgasrc/vgabios.c

vgasrc/vgabios.h

vgasrc/vgahw.h

Show diffs side-by-side

added added

removed removed

src/romlayout.S

241

cli

242

cld

243

// Use the ExtraStack in low mem.

244

movl $_datalow_seg, %eax

244

movl $_zonelow_seg, %eax

245

movw %ax, %ds

246

movw %ax, %ss

247

movl $ExtraStack + BUILD_EXTRA_STACK_SIZE, %esp

334

popfl

335

lretl

336

337

// PCI-BIOS 32bit entry point

337

// PCI-BIOS entry points

338

DECLFUNC entry_pcibios32

339

entry_pcibios32:

340

pushfl

341

pushl %gs // Backup %gs and set %gs=%ds

342

pushl %ds

343

popl %gs

344

ENTRY_ARG_ESP _cfunc32seg_handle_pcibios32

344

ENTRY_ARG_ESP _cfunc32seg_handle_pcibios

345

popl %gs

346

popfl

347

lretl

348

349

.code16gcc

350

DECLFUNC entry_pcibios16

351

entry_pcibios16:

352

ENTRY_ARG handle_pcibios

353

iretw

354

349

355

// BIOS32 support

350

EXPORTFUNC entry_bios32

356

.code32

357

DECLFUNC entry_bios32

351

358

entry_bios32:

352

359

pushfl

353

360

#if CONFIG_PCIBIOS

384

391

385

392

.code16gcc

386

393

394

// UEFI Compatibility Support Module (CSM) entry point

395

EXPORTFUNC entry_csm

396

entry_csm:

397

// Backup register state

398

pushfw

399

cli

400

cld

401

pushl %eax // dummy

402

PUSHBREGS

403

404

// Backup stack location and convert to a "flat pointer"

405

movl %ss, %eax

406

movw %ax, BREGS_code+2(%esp) // Store %ss in bregs->code.seg

407

shll $4, %eax

408

addl %esp, %eax

409

410

// Change to BUILD_STACK_ADDR stack

411

xorl %ebx, %ebx

412

movw %bx, %ss

413

movl $BUILD_STACK_ADDR, %esp

414

415

// Jump to 32bit mode and call handle_csm(bregs)

416

movl $_cfunc32flat_handle_csm, %edx

417

jmp transition32

418

419

DECLFUNC __csm_return

420

.code32

421

__csm_return:

422

movl $1f, %edx

423

jmp transition16big

424

.code16gcc

425

426

// Switch back to original stack

427

1: movzwl BREGS_code+2(%eax), %edx

428

movl %edx, %ecx

429

shll $4, %ecx

430

subl %ecx, %eax

431

movl %edx, %ss

432

movl %eax, %esp

433

434

// Restore register state and return.

435

POPBREGS

436

addw $4, %sp // pop dummy

437

popfw

438

lretw

439

387

440

388

441

/****************************************************************

389

442

* Interrupt entry points

396

449

cld

397

450

pushw %ds // Set %ds:%eax to space on ExtraStack

398

451

pushl %eax

399

movl $_datalow_seg, %eax

452

movl $_zonelow_seg, %eax

400

453

movl %eax, %ds

401

454

movl StackPos, %eax

402

455

subl $24, %eax

427

480

popw %ds

428

481

iretw

429

482

483

// Main entry point for interrupts handled on extra stack

484

DECLFUNC irqentry_arg_extrastack

485

irqentry_arg_extrastack:

486

cli

487

cld

488

pushw %ds // Set %ds:%eax to space on ExtraStack

489

pushl %eax

490

movl $_zonelow_seg, %eax

491

movl %eax, %ds

492

movl StackPos, %eax

493

subl $BREGS_size+8, %eax

494

popl BREGS_eax(%eax) // Backup registers

495

popw BREGS_ds(%eax)

496

movl %edi, BREGS_edi(%eax)

497

movl %esi, BREGS_esi(%eax)

498

movl %ebp, BREGS_ebp(%eax)

499

movl %ebx, BREGS_ebx(%eax)

500

movl %edx, BREGS_edx(%eax)

501

movl %ecx, BREGS_ecx(%eax)

502

popl %ecx

503

movw %es, BREGS_es(%eax)

504

movl %esp, BREGS_size+0(%eax)

505

movzwl %sp, %esp

506

movw %ss, BREGS_size+4(%eax)

507

movl (%esp), %edx

508

movl %edx, BREGS_code(%eax)

509

movw 4(%esp), %dx

510

movw %dx, BREGS_flags(%eax)

511

512

movw %ds, %dx // Setup %ss/%esp and call function

513

movw %dx, %ss

514

movl %eax, %esp

515

calll *%ecx

516

517

movl %esp, %eax // Restore registers and return

518

movw BREGS_size+4(%eax), %ss

519

movl BREGS_size+0(%eax), %esp

520

popl %edx

521

popw %dx

522

pushw BREGS_flags(%eax)

523

pushl BREGS_code(%eax)

524

movl BREGS_edi(%eax), %edi

525

movl BREGS_esi(%eax), %esi

526

movl BREGS_ebp(%eax), %ebp

527

movl BREGS_ebx(%eax), %ebx

528

movl BREGS_edx(%eax), %edx

529

movl BREGS_ecx(%eax), %ecx

530

movw BREGS_es(%eax), %es

531

pushw BREGS_ds(%eax)

532

pushl BREGS_eax(%eax)

533

popl %eax

534

popw %ds

535

iretw

536

430

537

// Main entry point for interrupts with args

431

538

DECLFUNC irqentryarg

432

539

irqentryarg:

451

558

.global entry_\num

452

559

entry_\num :

453

560

pushl $ handle_\num

561

#if CONFIG_ENTRY_EXTRASTACK

562

jmp irqentry_arg_extrastack

563

#else

454

564

jmp irqentryarg

565

#endif

455

566

.endm

456

567

457

568

.macro DECL_IRQ_ENTRY_ARG num

554

665

// 0xfa6e - vgafont8 in font.c

555

666

556

667

ORG 0xfe6e

668

.global entry_1a_official

669

entry_1a_official:

670

cmpb $0xb1, %ah

671

je entry_pcibios16 // PCIBIOS calls can be in protected mode

557

672

IRQ_ENTRY_ARG 1a

558

673

559

674

ORG 0xfea5

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