#include "pci_ids.h" // PCI_CLASS_DISPLAY_VGA
#include "boot.h" // IPL
#include "paravirt.h" // qemu_cfg_*
-
+#include "optionroms.h" // struct rom_header
/****************************************************************
* Definitions
****************************************************************/
-struct rom_header {
- u16 signature;
- u8 size;
- u8 initVector[4];
- u8 reserved[17];
- u16 pcioffset;
- u16 pnpoffset;
-} PACKED;
-
-struct pci_data {
- u32 signature;
- u16 vendor;
- u16 device;
- u16 vitaldata;
- u16 dlen;
- u8 drevision;
- u8 class_lo;
- u16 class_hi;
- u16 ilen;
- u16 irevision;
- u8 type;
- u8 indicator;
- u16 reserved;
-} PACKED;
-
-struct pnp_data {
- u32 signature;
- u8 revision;
- u8 len;
- u16 nextoffset;
- u8 reserved_08;
- u8 checksum;
- u32 devid;
- u16 manufacturer;
- u16 productname;
- u8 type_lo;
- u16 type_hi;
- u8 dev_flags;
- u16 bcv;
- u16 dv;
- u16 bev;
- u16 reserved_1c;
- u16 staticresource;
-} PACKED;
-
-#define OPTION_ROM_SIGNATURE 0xaa55
-#define OPTION_ROM_ALIGN 2048
-#define OPTION_ROM_INITVECTOR offsetof(struct rom_header, initVector[0])
-#define PCI_ROM_SIGNATURE 0x52494350 // PCIR
-#define PCIROM_CODETYPE_X86 0
-
// The end of the last deployed rom.
-u32 RomEnd;
+u32 RomEnd = BUILD_ROM_START;
/****************************************************************
__callrom(MAKE_FLATPTR(seg, 0), ip, 0);
}
+static int EnforceChecksum;
+
// Verify that an option rom looks valid
static int
is_valid_rom(struct rom_header *rom)
if (sum != 0) {
dprintf(1, "Found option rom with bad checksum: loc=%p len=%d sum=%x\n"
, rom, len, sum);
- return 0;
+ if (EnforceChecksum)
+ return 0;
}
return 1;
}
static struct pci_data *
get_pci_rom(struct rom_header *rom)
{
- struct pci_data *pci = (void*)((u32)rom + rom->pcioffset);
- if (pci->signature != PCI_ROM_SIGNATURE)
+ struct pci_data *pd = (void*)((u32)rom + rom->pcioffset);
+ if (pd->signature != PCI_ROM_SIGNATURE)
return NULL;
- return pci;
+ return pd;
}
+// Return start of code in 0xc0000-0xf0000 space.
+static inline u32 _max_rom(void) {
+ extern u8 code32flat_start[], code32init_end[];
+ return CONFIG_RELOCATE_INIT ? (u32)code32init_end : (u32)code32flat_start;
+}
// Return the memory position up to which roms may be located.
-static inline u32
-max_rom(void)
-{
- extern u8 code32flat_start[];
- if ((u32)code32flat_start > BUILD_BIOS_ADDR)
- return BUILD_BIOS_ADDR;
- return (u32)code32flat_start;
+static inline u32 max_rom(void) {
+ u32 end = _max_rom();
+ return end > BUILD_BIOS_ADDR ? BUILD_BIOS_ADDR : end;
}
// Copy a rom to its permanent location below 1MiB
return 0;
}
+#define RS_PCIROM (1LL<<33)
+
+static void
+setRomSource(u64 *sources, struct rom_header *rom, u64 source)
+{
+ if (sources)
+ sources[((u32)rom - BUILD_ROM_START) / OPTION_ROM_ALIGN] = source;
+}
+
+static int
+getRomPriority(u64 *sources, struct rom_header *rom, int instance)
+{
+ u64 source = sources[((u32)rom - BUILD_ROM_START) / OPTION_ROM_ALIGN];
+ if (!source)
+ return -1;
+ if (source & RS_PCIROM)
+ return bootprio_find_pci_rom((void*)(u32)source, instance);
+ return bootprio_find_named_rom(romfile_name(source), instance);
+}
+
/****************************************************************
* Roms in CBFS
// Check if an option rom is at a hardcoded location or in CBFS.
static struct rom_header *
-lookup_hardcode(u32 vendev)
+lookup_hardcode(struct pci_device *pci)
{
- if (OPTIONROM_VENDEV_1
- && ((OPTIONROM_VENDEV_1 >> 16)
- | ((OPTIONROM_VENDEV_1 & 0xffff)) << 16) == vendev)
- return copy_rom((void*)OPTIONROM_MEM_1);
- if (OPTIONROM_VENDEV_2
- && ((OPTIONROM_VENDEV_2 >> 16)
- | ((OPTIONROM_VENDEV_2 & 0xffff)) << 16) == vendev)
- return copy_rom((void*)OPTIONROM_MEM_2);
char fname[17];
snprintf(fname, sizeof(fname), "pci%04x,%04x.rom"
- , pci_vd_to_ven(vendev), pci_vd_to_dev(vendev));
+ , pci->vendor, pci->device);
int ret = romfile_copy(romfile_find(fname), (void*)RomEnd
, max_rom() - RomEnd);
if (ret <= 0)
// Run all roms in a given CBFS directory.
static void
-run_file_roms(const char *prefix, int isvga)
+run_file_roms(const char *prefix, int isvga, u64 *sources)
{
u32 file = 0;
for (;;) {
file = romfile_findprefix(prefix, file);
if (!file)
break;
- int ret = romfile_copy(file, (void*)RomEnd, max_rom() - RomEnd);
- if (ret > 0)
- init_optionrom((void*)RomEnd, 0, isvga);
+ struct rom_header *rom = (void*)RomEnd;
+ int ret = romfile_copy(file, rom, max_rom() - RomEnd);
+ if (ret > 0) {
+ setRomSource(sources, rom, file);
+ init_optionrom(rom, 0, isvga);
+ }
}
}
* PCI roms
****************************************************************/
+// Verify device is a vga device with legacy address decoding enabled.
+static int
+is_pci_vga(struct pci_device *pci)
+{
+ if (pci->class != PCI_CLASS_DISPLAY_VGA)
+ return 0;
+ u16 cmd = pci_config_readw(pci->bdf, PCI_COMMAND);
+ if (!(cmd & PCI_COMMAND_IO && cmd & PCI_COMMAND_MEMORY))
+ return 0;
+ while (pci->parent) {
+ pci = pci->parent;
+ u32 ctrl = pci_config_readb(pci->bdf, PCI_BRIDGE_CONTROL);
+ if (!(ctrl & PCI_BRIDGE_CTL_VGA))
+ return 0;
+ }
+ return 1;
+}
+
// Map the option rom of a given PCI device.
static struct rom_header *
-map_pcirom(u16 bdf, u32 vendev)
+map_pcirom(struct pci_device *pci)
{
+ u16 bdf = pci->bdf;
dprintf(6, "Attempting to map option rom on dev %02x:%02x.%x\n"
, pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf), pci_bdf_to_fn(bdf));
- u8 htype = pci_config_readb(bdf, PCI_HEADER_TYPE);
- if ((htype & 0x7f) != PCI_HEADER_TYPE_NORMAL) {
- dprintf(6, "Skipping non-normal pci device (type=%x)\n", htype);
+ if ((pci->header_type & 0x7f) != PCI_HEADER_TYPE_NORMAL) {
+ dprintf(6, "Skipping non-normal pci device (type=%x)\n"
+ , pci->header_type);
return NULL;
}
for (;;) {
dprintf(5, "Inspecting possible rom at %p (vd=%04x:%04x"
" bdf=%02x:%02x.%x)\n"
- , rom, pci_vd_to_ven(vendev), pci_vd_to_dev(vendev)
+ , rom, pci->vendor, pci->device
, pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf), pci_bdf_to_fn(bdf));
if (rom->signature != OPTION_ROM_SIGNATURE) {
dprintf(6, "No option rom signature (got %x)\n", rom->signature);
goto fail;
}
- struct pci_data *pci = get_pci_rom(rom);
- if (! pci) {
+ struct pci_data *pd = get_pci_rom(rom);
+ if (! pd) {
dprintf(6, "No valid pci signature found\n");
goto fail;
}
- u32 vd = pci_vd(pci->vendor, pci->device);
- if (vd == vendev && pci->type == PCIROM_CODETYPE_X86)
+ if (pd->vendor == pci->vendor && pd->device == pci->device
+ && pd->type == PCIROM_CODETYPE_X86)
// A match
break;
- dprintf(6, "Didn't match dev/ven (got %08x) or type (got %d)\n"
- , vd, pci->type);
- if (pci->indicator & 0x80) {
+ dprintf(6, "Didn't match dev/ven (got %04x:%04x) or type (got %d)\n"
+ , pd->vendor, pd->device, pd->type);
+ if (pd->indicator & 0x80) {
dprintf(6, "No more images left\n");
goto fail;
}
- rom = (void*)((u32)rom + pci->ilen * 512);
+ rom = (void*)((u32)rom + pd->ilen * 512);
}
rom = copy_rom(rom);
// Attempt to map and initialize the option rom on a given PCI device.
static int
-init_pcirom(u16 bdf, int isvga)
+init_pcirom(struct pci_device *pci, int isvga, u64 *sources)
{
- u32 vendev = pci_config_readl(bdf, PCI_VENDOR_ID);
+ u16 bdf = pci->bdf;
dprintf(4, "Attempting to init PCI bdf %02x:%02x.%x (vd %04x:%04x)\n"
, pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf), pci_bdf_to_fn(bdf)
- , pci_vd_to_ven(vendev), pci_vd_to_dev(vendev));
- struct rom_header *rom = lookup_hardcode(vendev);
+ , pci->vendor, pci->device);
+ struct rom_header *rom = lookup_hardcode(pci);
if (! rom)
- rom = map_pcirom(bdf, vendev);
+ rom = map_pcirom(pci);
if (! rom)
// No ROM present.
return -1;
+ setRomSource(sources, rom, RS_PCIROM | (u32)pci);
return init_optionrom(rom, bdf, isvga);
}
return;
dprintf(1, "Scan for option roms\n");
-
+ u64 sources[(BUILD_BIOS_ADDR - BUILD_ROM_START) / OPTION_ROM_ALIGN];
+ memset(sources, 0, sizeof(sources));
u32 post_vga = RomEnd;
if (CONFIG_OPTIONROMS_DEPLOYED) {
}
} else {
// Find and deploy PCI roms.
- int bdf, max;
- foreachpci(bdf, max) {
- u16 v = pci_config_readw(bdf, PCI_CLASS_DEVICE);
- if (v == 0x0000 || v == 0xffff || v == PCI_CLASS_DISPLAY_VGA
- || (CONFIG_ATA && v == PCI_CLASS_STORAGE_IDE))
+ struct pci_device *pci;
+ foreachpci(pci) {
+ if (pci->class == PCI_CLASS_DISPLAY_VGA || pci->have_driver)
continue;
- init_pcirom(bdf, 0);
+ init_pcirom(pci, 0, sources);
}
// Find and deploy CBFS roms not associated with a device.
- run_file_roms("genroms/", 0);
+ run_file_roms("genroms/", 0, sources);
}
// All option roms found and deployed - now build BEV/BCV vectors.
struct pnp_data *pnp = get_pnp_rom(rom);
if (! pnp) {
// Legacy rom.
- add_bcv(FLATPTR_TO_SEG(rom), OPTION_ROM_INITVECTOR, 0);
+ boot_add_bcv(FLATPTR_TO_SEG(rom), OPTION_ROM_INITVECTOR, 0
+ , getRomPriority(sources, rom, 0));
continue;
}
- // PnP rom.
- if (pnp->bev)
- // Can boot system - add to IPL list.
- add_bev(FLATPTR_TO_SEG(rom), pnp->bev, pnp->productname);
- else
- // Check for BCV (there may be multiple).
- while (pnp && pnp->bcv) {
- add_bcv(FLATPTR_TO_SEG(rom), pnp->bcv, pnp->productname);
- pnp = get_pnp_next(rom, pnp);
- }
+ // PnP rom - check for BEV and BCV boot capabilities.
+ int instance = 0;
+ while (pnp) {
+ if (pnp->bev)
+ boot_add_bev(FLATPTR_TO_SEG(rom), pnp->bev, pnp->productname
+ , getRomPriority(sources, rom, instance++));
+ else if (pnp->bcv)
+ boot_add_bcv(FLATPTR_TO_SEG(rom), pnp->bcv, pnp->productname
+ , getRomPriority(sources, rom, instance++));
+ else
+ break;
+ pnp = get_pnp_next(rom, pnp);
+ }
}
}
* VGA init
****************************************************************/
+static int S3ResumeVgaInit;
+int ScreenAndDebug;
+
// Call into vga code to turn on console.
void
vga_setup(void)
{
- VGAbdf = -1;
- RomEnd = BUILD_ROM_START;
-
if (! CONFIG_OPTIONROMS)
return;
dprintf(1, "Scan for VGA option rom\n");
+ // Load some config settings that impact VGA.
+ EnforceChecksum = romfile_loadint("etc/optionroms-checksum", 1);
+ S3ResumeVgaInit = romfile_loadint("etc/s3-resume-vga-init", 0);
+ ScreenAndDebug = romfile_loadint("etc/screen-and-debug", 1);
+
if (CONFIG_OPTIONROMS_DEPLOYED) {
// Option roms are already deployed on the system.
init_optionrom((void*)BUILD_ROM_START, 0, 1);
} else {
+ // Clear option rom memory
+ memset((void*)RomEnd, 0, max_rom() - RomEnd);
+
// Find and deploy PCI VGA rom.
- int bdf = VGAbdf = pci_find_vga();
- if (bdf >= 0)
- init_pcirom(bdf, 1);
+ struct pci_device *pci;
+ foreachpci(pci) {
+ if (!is_pci_vga(pci))
+ continue;
+ vgahook_setup(pci);
+ init_pcirom(pci, 1, NULL);
+ break;
+ }
// Find and deploy CBFS vga-style roms not associated with a device.
- run_file_roms("vgaroms/", 1);
+ run_file_roms("vgaroms/", 1, NULL);
}
if (RomEnd == BUILD_ROM_START) {
void
s3_resume_vga_init(void)
{
- if (!CONFIG_S3_RESUME_VGA_INIT)
+ if (!S3ResumeVgaInit)
return;
struct rom_header *rom = (void*)BUILD_ROM_START;
if (! is_valid_rom(rom))
projects / seabios.git / blobdiff