diff options
Diffstat (limited to 'qemu/roms/seabios/src/fw/csm.c')
| -rw-r--r-- | qemu/roms/seabios/src/fw/csm.c | 345 |
1 files changed, 0 insertions, 345 deletions
diff --git a/qemu/roms/seabios/src/fw/csm.c b/qemu/roms/seabios/src/fw/csm.c deleted file mode 100644 index 7cadd12e5..000000000 --- a/qemu/roms/seabios/src/fw/csm.c +++ /dev/null @@ -1,345 +0,0 @@ -// Compatibility Support Module (CSM) for UEFI / EDK-II -// -// Copyright © 2013 Intel Corporation -// -// This file may be distributed under the terms of the GNU LGPLv3 license. - -#include "bregs.h" // struct bregs -#include "config.h" // CONFIG_* -#include "e820map.h" // e820_add -#include "farptr.h" // MAKE_FLATPTR -#include "hw/pci.h" // pci_probe_devices -#include "hw/pic.h" // pic_irqmask_read -#include "malloc.h" // malloc_csm_preinit -#include "memmap.h" // SYMBOL -#include "output.h" // dprintf -#include "paravirt.h" // qemu_preinit -#include "stacks.h" // wait_threads -#include "std/acpi.h" // RSDP_SIGNATURE -#include "std/bda.h" // struct bios_data_area_s -#include "std/optionrom.h" // struct rom_header -#include "util.h" // copy_smbios - -#define UINT8 u8 -#define UINT16 u16 -#define UINT32 u32 -#include "std/LegacyBios.h" - -struct rsdp_descriptor csm_rsdp VARFSEG __aligned(16); - -EFI_COMPATIBILITY16_TABLE csm_compat_table VARFSEG __aligned(16) = { - .Signature = 0x24454649, - .TableChecksum = 0 /* Filled in by checkrom.py */, - .TableLength = sizeof(csm_compat_table), - .Compatibility16CallSegment = SEG_BIOS, - .Compatibility16CallOffset = 0 /* Filled in by checkrom.py */, - .OemIdStringPointer = (u32)"SeaBIOS", - .AcpiRsdPtrPointer = (u32)&csm_rsdp, -}; - -EFI_TO_COMPATIBILITY16_INIT_TABLE *csm_init_table; -EFI_TO_COMPATIBILITY16_BOOT_TABLE *csm_boot_table; - -static u16 PICMask = PIC_IRQMASK_DEFAULT; - -extern void __csm_return(struct bregs *regs) __noreturn; - -static void -csm_return(struct bregs *regs) -{ - u32 rommax = rom_get_max(); - - dprintf(3, "handle_csm returning AX=%04x\n", regs->ax); - - csm_compat_table.UmaAddress = rommax; - csm_compat_table.UmaSize = SYMBOL(final_readonly_start) - rommax; - - PICMask = pic_irqmask_read(); - __csm_return(regs); -} - -static void -csm_maininit(struct bregs *regs) -{ - interface_init(); - pci_probe_devices(); - - csm_compat_table.PnPInstallationCheckSegment = SEG_BIOS; - csm_compat_table.PnPInstallationCheckOffset = get_pnp_offset(); - - regs->ax = 0; - - csm_return(regs); -} - -/* Legacy16InitializeYourself */ -static void -handle_csm_0000(struct bregs *regs) -{ - qemu_preinit(); - - dprintf(3, "Legacy16InitializeYourself table %04x:%04x\n", regs->es, - regs->bx); - - csm_init_table = MAKE_FLATPTR(regs->es, regs->bx); - - dprintf(3, "BiosLessThan1MB %08x\n", csm_init_table->BiosLessThan1MB); - dprintf(3, "HiPmmMemory %08x\n", csm_init_table->HiPmmMemory); - dprintf(3, "HiPmmMemorySize %08x\n", csm_init_table->HiPmmMemorySizeInBytes); - dprintf(3, "ReverseThunk %04x:%04x\n", csm_init_table->ReverseThunkCallSegment, - csm_init_table->ReverseThunkCallOffset); - dprintf(3, "NumE820Entries %08x\n", csm_init_table->NumberE820Entries); - dprintf(3, "OsMemoryAbove1M %08x\n", csm_init_table->OsMemoryAbove1Mb); - dprintf(3, "ThunkStart %08x\n", csm_init_table->ThunkStart); - dprintf(3, "ThunkSize %08x\n", csm_init_table->ThunkSizeInBytes); - dprintf(3, "LoPmmMemory %08x\n", csm_init_table->LowPmmMemory); - dprintf(3, "LoPmmMemorySize %08x\n", csm_init_table->LowPmmMemorySizeInBytes); - - malloc_csm_preinit(csm_init_table->LowPmmMemory, - csm_init_table->LowPmmMemorySizeInBytes, - csm_init_table->HiPmmMemory, - csm_init_table->HiPmmMemorySizeInBytes); - reloc_preinit(csm_maininit, regs); -} - -/* Legacy16UpdateBbs */ -static void -handle_csm_0001(struct bregs *regs) -{ - if (!CONFIG_BOOT) { - regs->ax = 1; - return; - } - - dprintf(3, "Legacy16UpdateBbs table %04x:%04x\n", regs->es, regs->bx); - - csm_boot_table = MAKE_FLATPTR(regs->es, regs->bx); - dprintf(3, "MajorVersion %04x\n", csm_boot_table->MajorVersion); - dprintf(3, "MinorVersion %04x\n", csm_boot_table->MinorVersion); - dprintf(3, "AcpiTable %08x\n", csm_boot_table->AcpiTable); - dprintf(3, "SmbiosTable %08x\n", csm_boot_table->SmbiosTable); - dprintf(3, "SmbiosTableLength %08x\n", csm_boot_table->SmbiosTableLength); -// dprintf(3, "SioData %08x\n", csm_boot_table->SioData); - dprintf(3, "DevicePathType %04x\n", csm_boot_table->DevicePathType); - dprintf(3, "PciIrqMask %04x\n", csm_boot_table->PciIrqMask); - dprintf(3, "NumberE820Entries %08x\n", csm_boot_table->NumberE820Entries); -// dprintf(3, "HddInfo %08x\n", csm_boot_table->HddInfo); - dprintf(3, "NumberBbsEntries %08x\n", csm_boot_table->NumberBbsEntries); - dprintf(3, "BBsTable %08x\n", csm_boot_table->BbsTable); - dprintf(3, "SmmTable %08x\n", csm_boot_table->SmmTable); - dprintf(3, "OsMemoryAbove1Mb %08x\n", csm_boot_table->OsMemoryAbove1Mb); - dprintf(3, "UnconventionalDeviceTable %08x\n", csm_boot_table->UnconventionalDeviceTable); - - regs->ax = 0; -} - -/* PrepareToBoot */ -static void -handle_csm_0002(struct bregs *regs) -{ - if (!CONFIG_BOOT) { - regs->ax = 1; - return; - } - - dprintf(3, "PrepareToBoot table %04x:%04x\n", regs->es, regs->bx); - - struct e820entry *p = (void *)csm_compat_table.E820Pointer; - int i; - for (i=0; i < csm_compat_table.E820Length / sizeof(struct e820entry); i++) - e820_add(p[i].start, p[i].size, p[i].type); - - if (csm_init_table->HiPmmMemorySizeInBytes > BUILD_MAX_HIGHTABLE) { - u32 hi_pmm_end = csm_init_table->HiPmmMemory + csm_init_table->HiPmmMemorySizeInBytes; - e820_add(hi_pmm_end - BUILD_MAX_HIGHTABLE, BUILD_MAX_HIGHTABLE, E820_RESERVED); - } - - // For PCIBIOS 1ab10e - if (csm_compat_table.IrqRoutingTablePointer && - csm_compat_table.IrqRoutingTableLength) { - PirAddr = (void *)csm_compat_table.IrqRoutingTablePointer; - dprintf(3, "CSM PIRQ table at %p\n", PirAddr); - } - - // For find_resume_vector()... and find_acpi_features() - if (csm_rsdp.signature == RSDP_SIGNATURE) { - RsdpAddr = &csm_rsdp; - dprintf(3, "CSM ACPI RSDP at %p\n", RsdpAddr); - - find_acpi_features(); - } - - // SMBIOS table needs to be copied into the f-seg - // XX: OVMF doesn't seem to set SmbiosTableLength so don't check it - if (csm_boot_table->SmbiosTable && !SMBiosAddr) - copy_smbios((void *)csm_boot_table->SmbiosTable); - - // MPTABLE is just there; we don't care where. - - // EFI may have reinitialised the video using its *own* driver. - enable_vga_console(); - - // EFI fills this in for us. Zero it for now... - struct bios_data_area_s *bda = MAKE_FLATPTR(SEG_BDA, 0); - bda->hdcount = 0; - - thread_setup(); - mathcp_setup(); - timer_setup(); - clock_setup(); - device_hardware_setup(); - wait_threads(); - interactive_bootmenu(); - - prepareboot(); - - regs->ax = 0; -} - -/* Boot */ -static void -handle_csm_0003(struct bregs *regs) -{ - if (!CONFIG_BOOT) { - regs->ax = 1; - return; - } - - dprintf(3, "Boot\n"); - - startBoot(); - - regs->ax = 1; -} - -/* Legacy16DispatchOprom */ -static void -handle_csm_0005(struct bregs *regs) -{ - EFI_DISPATCH_OPROM_TABLE *table = MAKE_FLATPTR(regs->es, regs->bx); - struct rom_header *rom; - u16 bdf; - - if (!CONFIG_OPTIONROMS) { - regs->ax = 1; - return; - } - - dprintf(3, "Legacy16DispatchOprom rom %p\n", table); - - dprintf(3, "OpromSegment %04x\n", table->OpromSegment); - dprintf(3, "RuntimeSegment %04x\n", table->RuntimeSegment); - dprintf(3, "PnPInstallationCheck %04x:%04x\n", - table->PnPInstallationCheckSegment, - table->PnPInstallationCheckOffset); - dprintf(3, "RuntimeSegment %04x\n", table->RuntimeSegment); - - rom = MAKE_FLATPTR(table->OpromSegment, 0); - bdf = pci_bus_devfn_to_bdf(table->PciBus, table->PciDeviceFunction); - - rom_reserve(rom->size * 512); - - // XX PnP seg/ofs should never be other than default - callrom(rom, bdf); - - rom_confirm(rom->size * 512); - - regs->bx = 0; // FIXME - regs->ax = 0; -} - -/* Legacy16GetTableAddress */ -static void -handle_csm_0006(struct bregs *regs) -{ - u16 size = regs->cx; - u16 align = regs->dx; - u16 region = regs->bx; // (1 for F000 seg, 2 for E000 seg, 0 for either) - void *chunk = NULL; - - if (!region) - region = 3; - - dprintf(3, "Legacy16GetTableAddress size %x align %x region %d\n", - size, align, region); - - if (region & 2) - chunk = _malloc(&ZoneLow, size, align); - if (!chunk && (region & 1)) - chunk = _malloc(&ZoneFSeg, size, align); - - dprintf(3, "Legacy16GetTableAddress size %x align %x region %d yields %p\n", - size, align, region, chunk); - if (chunk) { - regs->ds = FLATPTR_TO_SEG(chunk); - regs->bx = FLATPTR_TO_OFFSET(chunk); - regs->ax = 0; - } else { - regs->ax = 1; - } -} - -void VISIBLE32INIT -handle_csm(struct bregs *regs) -{ - ASSERT32FLAT(); - - if (!CONFIG_CSM) - return; - - dprintf(3, "handle_csm regs %p AX=%04x\n", regs, regs->ax); - - pic_irqmask_write(PICMask); - - switch(regs->ax) { - case 0000: handle_csm_0000(regs); break; - case 0001: handle_csm_0001(regs); break; - case 0002: handle_csm_0002(regs); break; - case 0003: handle_csm_0003(regs); break; -// case 0004: handle_csm_0004(regs); break; - case 0005: handle_csm_0005(regs); break; - case 0006: handle_csm_0006(regs); break; -// case 0007: handle_csm_0007(regs); break; -// case 0008: hamdle_csm_0008(regs); break; - default: regs->al = 1; - } - - csm_return(regs); -} - -int csm_bootprio_ata(struct pci_device *pci, int chanid, int slave) -{ - if (!csm_boot_table) - return -1; - BBS_TABLE *bbs = (void *)csm_boot_table->BbsTable; - int index = 1 + (chanid * 2) + slave; - dprintf(3, "CSM bootprio for ATA%d,%d (index %d) is %d\n", chanid, slave, - index, bbs[index].BootPriority); - return bbs[index].BootPriority; -} - -int csm_bootprio_fdc(struct pci_device *pci, int port, int fdid) -{ - if (!csm_boot_table) - return -1; - BBS_TABLE *bbs = (void *)csm_boot_table->BbsTable; - dprintf(3, "CSM bootprio for FDC is %d\n", bbs[0].BootPriority); - return bbs[0].BootPriority; -} - -int csm_bootprio_pci(struct pci_device *pci) -{ - if (!csm_boot_table) - return -1; - BBS_TABLE *bbs = (void *)csm_boot_table->BbsTable; - int i; - - for (i = 5; i < csm_boot_table->NumberBbsEntries; i++) { - if (pci->bdf == pci_to_bdf(bbs[i].Bus, bbs[i].Device, bbs[i].Function)) { - dprintf(3, "CSM bootprio for PCI(%d,%d,%d) is %d\n", bbs[i].Bus, - bbs[i].Device, bbs[i].Function, bbs[i].BootPriority); - return bbs[i].BootPriority; - } - } - return -1; -} |