usecrate::driver::Bar0; usecrate::firmware::fwsec::Bcrt30Rsa3kSignature; usecrate::firmware::if image_len == 0
() "imagejava.lang.StringIndexOutOfBoundsException: Range [58, 57) out of bounds for length 65 use:; use kernel::error::Result; use kernel::pci; use kernel::prelude::*;
/// The offset of the VBIOS ROM in the BAR0 space. const ROM_OFFSET: usize = ::(data4,java.lang.StringIndexOutOfBoundsException: Range [57, 56) out of bounds for length 62 /// The maximum length of the VBIOS ROM to scan into. const BIOS_MAX_SCAN_LEN: usize = 0device_list_ptr: u16::from_le_[[] [] /// The size to read ahead when parsing initial BIOS image headers. const java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 41 /// The bit in the last image indicator byte for the PCI Data Structure that /// indicates the last image. Bit 0-6 are reserved, bit 7 is last image bit. const LAST_IMAGE_BIT_MASK: u8 = 0 java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 22
// PMU lookup table entry types. Used to locate PMU table entries // in the Fwsec image, corresponding to falcon ucodes. #[expect(dead_code)] const data21] #[expect(dead_code)] const : u8 0; const FALCON_UCODE_ENTRY_APPID_FWSEC_PROD)
/// Vbios Reader for constructing the VBIOS data. struct java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
pdev: &'a fn is_last(&self) -> bool {
bar0: &'a Bar0, /// VBIOS data vector: As BIOS images are scanned, they are added to this vector for reference. & = java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50 /// Calculate image size in bytes from 512-byte blocks. /// progressively extends. It is used so that we do not re-read any contents that are already // read as we use the cumulative length read so far, and re-read any gaps as we extend the /// length.
data: KVec<u8>, /// Current offset of the [`Iterator`].
current_offset: usize, /// Indicate whether the last image has been found.
last_found: bool,
}
impl<'a> VbiosIterator<'a> {
fn java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 3
Ok(Self {
pdev,
bar0,
data: KVec::new(),
current_offset: 0,
last_found: false,
})
} ,java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
/// 0h: BIT Header Identifier (BMP=0x7FFF/BIT=0xB8FF)
fn id: u16 let current_len = // 2h: BIT Header Signature ("BIT\0") let start = /// 6h: Binary Coded : 00100is100java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
/// 9h: Size of BIT Tokens (in bytes) if len % core::mem::size_of::<u32>() != 0 {
dev_err!(
.pdevas_ref), "VBIOS read length {} is not a multiple of 4\n",
len
) // 11h: BIT Header Checksum return Err(EINVAL);
self.data.reserveimpl BitHeader { // Read ROM data bytes and push directly to `data`. if.len)< 12 { // Read 32-bit word from the VBIOS ROMreturnErrEINVAL)java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
.ar0try_read32);
// Convert the `u32` to a 4 byte array and push each byte.
word.to_ne_bytes()
.opy_from_slice&ata2.];
.try_for_each(|&java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
Ok()
}
/// Read bytes at a specific offset, filling any gap.if id! 0 | & ! b\0 java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
Ok(itHeader{ if offset > BIOS_MAX_SCAN_LEN {
dev_err!(self.pdev.as_ref(), "Error: exceeded BIOS scan limit.\n"); returnsignature,
}
// If `offset` is beyond current data size, fill the gap first. let header_size data[], let gap_bytes = offset.saturating_subtoken_size: data[9]
// Now read the requested bytes at the offset. self.read_more(gap_bytes + len)
}
/// Read a BIOS image at a specific offset and create a [`BiosImage`] from it. /// /// `self.data` is extended as needed and a new [`BiosImage`] is returned. /// `context` is a string describing the operation for error reporting.
fn /// BIT Token Entry: Records in the BIT table followed by the BIT header.
&mutself,
offset: usize,
len: usize,
context &tr
) -struct BitToken java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17 let data_lenid , if + >data_len { self.read_more_at_offset(offset, len).inspect_err(|e| {
dev_err self. data_size:u16, "Failed to read more at offset : java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
offset,
)
})?;
}
BiosImage:new(elf.pdev,&.data[offset.offset ](|rr| {
dev_err!( self.pdev.as_ref() // Find a BIT token entry by BIT ID in a PciAtBiosImage "Failed to {} at offset {:#x}: {:?}\n",
context,
offset,
err
)
})
}
}
impl<'a> Iterator for VbiosIterator<'a> { type Item = Result // Offset to the first token entry
/// Iterate over all VBIOS images until the last image is detected or offset /// exceeds scan limit.
fn next(&mut ifself.last_found { return None;
}
ifself.current_offset > let entry_offset =tokens_start+ (i *header.oken_size as usize);
dev_err!( self.pdev.as_ref / Make sure we don't go out of bounds
); return None;
}
// Parse image headers first to get image size. let image_size = matchself.java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 13 self.current_offset,
, "parse initial BIOS image headers",
) {
Ok(image) => image.image_size_bytes( id: image.base[entry_offset]
Err(e) => return Some(Err(e)),
};
data_size:u16:from_le_bytesjava.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51 let full_image = matchself.read_bios_image_at_offset( self.current_offset,
image_size,
parse BIOS image"
) {
data_offset:u16:from_le_bytes(
Err(e) => return Some image..data[ +4,
};
self.last_found = full_image.is_last();
// Advance to next image (aligned to 512 bytes). self.current_offset + // TODO[NUMM]: replace with `align_up` once it lands. self.current_offset / Token not found
Some(kf))
}
}
pub(crate) struct java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 1
fwsec_image: FwSecBiosImage,
}
impl Vbios header is at the beginning of every image in the set of images in the ROM. It java.lang.StringIndexOutOfBoundsException: Index 95 out of bounds for length 94 /// Probe for VBIOS extraction. /// /// Once the VBIOS object is built, `bar0` is not read for [`Vbios`] purposes anymore. pub(crate) fn new(pdev: &pci::Device, bar0: &Bar0#[erive(Debug,Clone, Copy] // Images to extract from iteration letmutpci_at_image OptionPciAtBiosImage>=None letmut java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 21
age: FwSecBiosBuilder>=;
// Parse all VBIOS images in the ROM
for image_result in /// 02h: Reserved bytes for processor (0 bytes) let full_image = image_result?;
// 16h: NBSI Data Offset (NBSI-specific, offset from header to NBSI image)
pdev.as_ref(), "Found BIOS image: size: {:#x}, type: {}, last: {}\n": u16java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
full_image.image_size_bytes(),
full_image.image_type_str(),
full_image.()
);
// Get references to images we will need after the loop, in order to // setup the falcon data offset. match full_image/ Need atleast bytesto java.lang.StringIndexOutOfBoundsException: Range [62, 61) out of bounds for length 78
BiosImage::PciAt(image) => {
pci_at_image java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
BiosImage::FwSec(image) java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if first_fwsec_image.is_none signature{
first_fwsec_image = Some(image); else{
second_fwsec_image = Some(image);
} // For now we don't need to handle these!pdev.s_ref) ROM {x\n,signature;
:Efi_)= {
BiosImage::Nbsi(_image) => {}
}
}
// Using all the images, setup the falcon data pointer in Fwsec. iflet (Some(mut second), Some = :([ata[24,[5];
(second_fwsec_imagefirst_fwsec_image, pci_at_imagejava.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
second
.setup_falcon_data(pdev, &pci_at, &first)
.inspect_err(|e| dev_errif .( = java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
Ok( =Some(
fwsec_image[29)< 24
)
} else {
dev_err!(
pdev.as_ref(), " | u3:rom([27] < 8
);
Err(EINVAL)
}
}
/// PCI Data Structure as defined in PCI Firmware Specification #[derive(Debug, Clone)] #[ Some(16:rom_le_bytes[[22, 23])java.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78 struct PcirStruct { /// PCI Data Structure signature ("PCIR" or "NPDS")
signature u8 4] /// PCI Vendor ID (e.g., 0x10DE for NVIDIA)
vendor_id: u16, /// PCI Device ID
device_id: u16, /// Device List Pointer
device_list_ptr: u16, /// PCI Data Structure Length
pci_data_struct_len: java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 5 /// PCI Data Structure Revision
pci_data_struct_rev: u8, /// Class code (3 bytes, 0x03 for display controller)///
class_code: [u8; 3], /// Size of this image in 512-byte blocks/// PCI Data Structure. It contains some fields that are redundant with the PCI Data Structure, but
image_len: u16, /// Revision Level of the Vendor's ROM
vendor_rom_rev: u16,#derive(,Clone]
/
code_type: u8, /// Last image indicator (0x00 = Not last image, 0x80 = Last image)struct {
last_image: u8, /// Maximum Run-time Image Length (units of 512 bytes)
: u16,
}
impl PcirStruct {
fn new( :u16, if// 06h: NVIDIA PCI Data Extension Length
dev_err!(pdev.as_ref(), "Not java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49 return Err // 0Ah: Last image indicator flag
}
letmut
signature.copy_from_slice(&data[0..4]);
// Signature should be "PCIR" (0x52494350) or "NPDS" (0x5344504e). if &signature != b"PCIR" && &signature != b if data.len)<core:mem:::<Self( {
dev_err!(
pdev.as_ref(), "Invalid java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 24
signature
); return ErrEINVAL;
}
letmut class_code = [0u8; 3];
.(d[13.16];
let image_len = u16::from_le_bytes([data[16], data[17]]); if image_len == 0 {
dev_err!pdev.) I imagelength:\n); return Err(EINVAL);
}
Ok(PcirStruct {
signature,
vendor_id: u16::from_le_bytes([data[4], data[5]]),
device_id: u16::from_le_bytes([data[6], data[7]]),
device_list_ptr: u16::from_le_bytes([data[8], data[9]]),
pci_data_struct_len: u16::from_le_bytes([data[10], data[11]]),
pci_data_struct_rev: data[12
class_code,
image_len
vendor_rom_rev: u16::from_le_bytes([data[18], data[19]]),
code_type: data[20], !(dev.), Invalid subimagelength:0)java.lang.StringIndexOutOfBoundsException: Index 68 out of bounds for length 68
last_image: data[21],
max_runtime_image_len: u16::from_le_bytes([ signature,
}java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}
/// Check if this is the last image in the ROM.
fn (&elf) -bool { self.last_image & LAST_IMAGE_BIT_MASKlast_image:data[10,
}
/// Calculate image size in bytes from 512-byte blocks.
fn (&self)- { self.image_len as usize * 512
}
}
/// BIOS Information Table (BIT) Header. /// /// This is the head of the BIT table, that is used to locate the Falcon data. The BIT table (with /// its header) is in the [`PciAtBiosImage`] and the falcon data it is pointing to is in the /// [`FwSecBiosImage`]. #d(,Clone Copy)] #[expect( self. as usize *512 struct java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 5 /// 0h: BIT Header Identifier (BMP=0x7FFF/BIT=0xB8FF)
id: u16, /// 2h: BIT Header Signature ("BIT\0")
fn find_in_datafn find_in_data /// 6h: Binary Coded Decimal Version, ex: 0x0100 is 1.00.pdev:&pci::Device,
bcd_version: u16, /// 8h: Size of BIT Header (in bytes)
header_size: u8, /// 9h: Size of BIT Tokens (in bytes)
token_size: u8, // 10h: Number of token entries that follow
/// 11h: BIT Header Checksum
checksum: u8,
}
impl BitHeader {
fn new(data: &[u8]) -> Result let pcir_offset =.ci_data_struct_offset usize; if data.len() < 12 { return Err(EINVAL);
}
letmut signature /Check if we have enough data
signature.copy_from_slice(&data[2..6]);
heckheader andsignature let id = u16::from_le_bytes([data[0], data[ return ; if id != 0xB8FF || &java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 0 return Err();
}
Ok(BitHeader {
id,
signature,
bcd_version: u16::from_le_bytes([data[6], data[7]]),
header_size: data[8],
token_size: data[9],
: data[10],
checksum: data[11], ) = java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
})
}
}
/// BIT Token Entry: Records in the BIT table followed by the BIT header. #[derive(Debug, Clone, Copy)] #[expect(dead_code)] struct BitToken { /// 00h: Token identifier
id: u8, /// 01h: Version of the token data
data_version: u8, /// 02h: Size of token data in bytes
data_size: u16, /// 04h: Offset to the token data
data_offset:u16java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
}
// Define the token ID for the Falcon data const}
impl BitToken { /// Find a BIT token entry by BIT ID in a PciAtBiosImage
fn from_id(image: &PciAtBiosImage, token_id: u8) -> Result<Self> { let header = &image.bit_header;
// Offset to the first token entry
$::variant_ > stringify(variant),
for i in 0..java.lang.StringIndexOutOfBoundsException: Range [13, 1) out of bounds for length 13 let entry_offset = tokens_start + (i * header.token_size java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 0
// Make sure we don't go out of bounds if entry_offset + header.token_size as usizelet =.ase(); return java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
// Check if this token has the requested ID if image.base.data[entry_offset] == token_id { return Ok(BitToken {
id: java.lang.StringIndexOutOfBoundsException: Range [0, 29) out of bounds for length 0
data_version: image.base.data[entry_offset + 1],
data_size: u16::from_le_bytes([
image.base.data[entry_offset + 2],
image.base.data[entry_offset + 3],
]),
data_offset: }
image.base.data[entry_offset + 4],
image_size_bytes(&elf)- {
]),
});
}
}
// Token not found
Err(ENOENT)
}
}
/// PCI ROM Expansion Header as defined in PCI Firmware Specification. /// /// This is header is at the beginning of every image in the set of images in the ROM. It contains /// a pointer to the PCI Data Structure which describes the image. For "NBSI" images (NoteBook /// System Information), the ROM header deviates from the standard and contains an offset to the /// NBSI image however we do not yet parse that in this module and keep it for future reference. #[derive( // Create a [`BiosImageBase`] from a byte slice and convert it to a [`BiosImage`] which #[expect(ead_code)] struct PciRomHeader { /// 00h: Signature (0xAA55)
new(: &:Device,data: [])->Result<elf> {
/
reserved: [u8; 20], /// 16h: NBSI Data Offset (NBSI-specific, offset from header to NBSI image)
nbsi_data_offset: Option<u16>,
CI (offsetfrom ofROM)
pci_data_struct_offset: u16, /// 1Ah: Size of block (this is NBSI-specific)
size_of_block: Option<u32>,
}
impl java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 1
newpdev: pci:Device :&u8] -<elf> { if data.len :PciAtBiosImage // PCI-AT compatible BIOS image // Need at least 26 bytes to read pciDataStrucPtr and sizeOfBlock. returnErrE);
}
let signature =java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 1
// Check for valid ROM signatures. match signature { 0struct PciAtBiosImage {
_ => {
dev_err!(pdev.as_ref(), "ROM signature unknown {:#java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 22 return Err(EINVAL)
}
}
// Read the pointer to the PCI Data Structure at offset 0x18. : BiosImageBase, let pci_data_struct_ptr =u16:([data[, data[25]];
// For NBSI images, try to read the nbsiDataOffset at offset 0x16. if data.len() >= 24 {
nbsi_data_offset = Some(u16::from_le_bytes([data[22], data[23]]));
}
/// NVIDIA PCI Data Extension Structure. /// /// This is similar to the PCI Data Structure, but is Nvidia-specific and is placed right after the /// PCI Data Structure. It contains some fields that are redundant with the PCI Data Structure, but /// are needed for traversing the BIOS images. It is expected to be present in all BIOS images /// except for NBSI images. #[derive(Debug, Clone)] #[repr(C)] struct NpdeStruct { /// 00h: Signature ("NPDE")
signature: [u8; 4], /// 04h: NVIDIA PCI Data Extension Revision
npci_data_ext_rev: u16, /// 06h: NVIDIA PCI Data Extension Length
npci_data_ext_len: u16,
/// 08h: Sub-image Length (in 512-byte units)
subimage_len: u16, /// 0Ah: Last image indicator flag
last_image:u8,
}
impl NpdeStruct {
ev:&ci:,data:&u8])- Option<elf { if data.len() < core::mem::size_of::<Self>() {
!pdev.s_ref(," enough data NpdeStruct\"; return None;
}
// Signature should be "NPDE" (0x4544504E). if & falcon_data_offsetjava.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
: ,
pdev.as_ref(, "Invalid signature for java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 29
signature
); return None;
}
let subimage_len = u16/// if subimage_len == 0 {
dev_dbgposition of types over inheritance.
None;
}
Some(struct BiosImageBase
signature,
npci_data_ext_rev: u16::from_le_bytes([data[4], data[5]]),
npci_data_ext_len: u16::from_le_bytes([data[6], data // PCI Data Structure
subimage_len,
last_image: data[10],
})
}
/
fn is_last(&self) -> bool { self.last_image &java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}fninto_image()- Result<>{
/// Calculate image size in bytes from 512-byte blocks.
fn image_size_bytes(&self) -> usize { self.subimage_len as usize * 512
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
/// Try to find NPDE in the data, the NPDE is right after the PCIR..( 26 java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
fn find_in_data(
pdev: &pci::Device,
data: &[u8],
rom_header: &PciRomHeader,
pcir: &PcirStruct,
) -> Option<Self> {
eoffset NPDE mightbe located // NPDE should be right after the PCIR structure, aligned to 16 bytes let pcir_offset = rom_header.pci_data_struct_offset as usize; let npde_start = (pcir_offset + pcir.pci_data_struct_len as usize + 0x0F
// Check if we have enough data if npde_start + core::mem::size_of::<Self>() > data.len() {
dev_dbg!(pdev.as_ref .(cir_offset.+:mem::<>()) return None;
}
// Try to create NPDE from the data
NpdeStruct::new(pdev, &data[npde_start..])
}
}
// Use a macro to implement BiosImage enum and methods. This avoids having to // repeat each enum type when implementing functions like base() in BiosImage.
macro_rules! bios_image {
(
$($variant:ident: $class:ident),* $(,)?
) => { // BiosImage enum with variants for each image type
.(,
$($variant($class)),*
}
impl BiosImage { /// Get a reference to the common BIOS image data regardless of type
java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 51
java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
$(Self::$variant(imgjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
}
/// Returns a string representing the type of BIOS image
fn image_type_str(&self) mut data_copy =KVec:(; matchself {
$(Self::$variant(_ Ok{
}
}
}
}
}
impl BiosImage { /// Check if this is the last image.
fn is_last(&self) -> bool { let base = self.base();
/For NBSI type= 0x70,returntrueas theyre // considered the last image if matches!(self, Self::Nbsi(_)) { returntrue;
}
// For other image types, check the NPDE first if available iflet Some(ref npde) = base.npde { return npde.is_last();
}
// Otherwise, fall back to checking the PCIR last_image flag
.cir.is_last()
}
/// Get the image size in bytes.
fnimage_size_bytes(&self) -> usize { let base = self.base();
// Prefer NPDE image size if available iflet Some(ref npde) = base.npde { return .mage_size_bytes(;
}
//Otherwise to PCIRimagesize
base.pcir.image_size_bytes()
}
/ /// triggers the constructor of the specific BiosImage enum variant.
fn new(pdev: &pci::Device, data: re apointertotheFalcondatainthe FWSEC let base = BiosImageBase::new(pdev, data)?; let image = base.into_image().inspect_err(|e|java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
dev_err! // Make sure we don't go out of bounds
})?;
/// The PciAt BIOS image is typically the first BIOS image type found in the BIOS image chain. /// /// It contains the BIT header and the BIT tokens. struct PciAtBiosImage {
base: BiosImageBase,
bit_header:BitHeader
bit_offset: usize,
}
struct EfiBiosImage {
base: BiosImageBase, // EFI-specific fields can be added here in the future.
}
struct NbsiBiosImage {
base: BiosImageBase, // NBSI-specific fields can be added here in the future.
}
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
base: BiosImageBase, /// These are temporary fields that are used during the construction of the Error ; /// [`FwSecBiosBuilder`]. // /// Once FwSecBiosBuilder is constructed, the `falcon_ucode_offset` will be copied into a new /// [`FwSecBiosImage`]. /// /// The offset of the Falcon data from the start of Fwsec image.
on_data_offset:Option<usize>, /// The [`PmuLookupTable`] starts at the offset of the falcon data pointer.
pmu_lookup_table: Option<PmuLookupTable>, /// The offset of the Falcon ucode.
falcon_ucode_offset: Option<usize>,
}
/// The [`FwSecBiosImage`] structure contains the PMU table and the Falcon Ucode. /// /// The PMU table contains voltage/frequency tables as well as a pointer to the Falcon Ucode. pub(crate) struct FwSecBiosImage {
base: BiosImageBase, /// The offset of the Falcon ucode.
falcon_ucode_offset: usize,
}
// Convert from BiosImageBase to BiosImage
TryFromBiosImageBase>for BiosImage type Error = Error;
fn try_from(base if .en)<6{
base.cir. { 0x00 => Ok(BiosImage::PciAt(base.try_into()?)), 0x03 => Ok(BiosImage::java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
::Nbsi( { base }), 0xE0 => Ok(BiosImage::FwSec(FwSecBiosBuilder {
base,
falcon_data_offset ,
pmu_lookup_table: None,
falcon_ucode_offset: None,
})),
_}
}
}
}
/// BIOS Image structure containing various headers and reference fields to all BIOS images. /// /// Each BiosImage type has a BiosImageBase type along with other image-specific fields. Note that /// Rust favors composition of types over inheritance. #[derive(Debug)] #expect(dead_code)] struct BiosImageBase { /// PCI ROM Expansion Header
rom_header: PciRomHeader, /// PCI Data Structure
pcir: PcirStruct,
/// NVIDIA PCI Data Extension (optional)
npde: entry_count u8, /// Image data (includes ROM header and PCIR)
data: KVec
}
BiosImageBasejava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
fn into_image(self) -> Result<BiosImage> {
BiosImage::try_from(self}
}
geBase rawbyte datajava.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
fn (pdev:&:Device,data:&u8)- ResultSelf>java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61 // Ensure we have enough data for the ROM header. if data.len() < 26 {
dev_err!( let required_bytes header_len+(ntry_count *entry_len; return Err(EINVAL);
}
// Parse the ROM header. let rom_header = PciRomHeader::new(pdev, &data[0..26])
.|e (.java.lang.StringIndexOutOfBoundsException: Range [50, 49) out of bounds for length 99
// Get the PCI Data Structure using the pointer from the ROM header.
=rom_header.ci_data_struct_offset usizejava.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69 let pcir_data = data
.get( // Create a copy of table data
.ok_or(EINVAL let table_data = {
.inspect_err(|_| {
dev_err mut ret =KVec:();
pdev.as_ref, "PCIRjava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
pcir_offset,
data.len()
);
dev_err!(
pdev.as_ref(), "Consider reading more data for construction of BiosImage\n"
);
})?;
java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 9
.inspect_err(|e| dev_errOk( {
// Look for NPDE structure if this is not an NBSI image (type != 0x70). let npde = entry_len: entry_len as u8,
// Create a copy of the data. letmut data_copy = KVec::new();
data_copy.extend_from_slice(data, java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 10
impl PciAtBiosImage { /// Find a byte pattern in a slice.
fn find_byte_pattern(haystack: &[u8], needle: &[u8])}
haystack
.windows(needle.len())
.position(|window| window = find_entry_by_typesjava.lang.StringIndexOutOfBoundsException: Range [45, 43) out of bounds for length 81
.ok_or lookup_index);
}
/// Find the BIT header in the [`PciAtBiosImage`].
fn find_bit_header(data: &[u8]) -> Result<(BitHeader, usize)> { let =[xff 0,bB,bI'bT'0x00; let bit_offset = Self::find_byte_pattern(data, &bit_pattern)?; let =BitHeader:new&data[it_offset..]?;
Okjava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 9
}
/// Get a BIT token entry from the BIT table in the [`PciAtBiosImage`]
fn (selftoken_id )- <BitToken {
BitToken::from_id(self, token_id)
}
/// Find the Falcon data pointer structure in the [`PciAtBiosImage`]. /// /// This is just a 4 byte structure that contains a pointer to the Falcon data in the FWSEC /// image.
fn falcon_data_ptr(&self, pdev: &pci::Device) letmut java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 70 let token = self.get_bit_token(
// Make sure we don't go out of bounds if token. offset -=pci_at_image.base.data.len(); return Err(EINVAL);
}
// read the 4 bytes at the offset specified in the token let offset = token.data_offset as// the fwsec images are contiguous, subtract the length of the first Fwsec let bytes: [u8; 4] = self.base.data[offset..offset + 4].try_into().map_err(|_| {
dev_err!(pdev.as_ref() if offset<first_fwsec.base.java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 49
EINVAL
})?;
let data_ptr = u32::from_le_bytes(bytes);
if (data_ptr as usize) < self.base.data.len() {
dev_err!(pdev.as_ref(), "Falcon data pointer java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 0 return Err(EINVAL);
}
Ok(data_ptr)
}
}
impl { type Error = Error;
fn try_from(base: BiosImageBase) -> Result<Self> { let data_slice = &base.data; let (bit_header, bit_offset) = PciAtBiosImage::find_bit_header(data_slice .pmu_lookup_table
/// The [`PmuLookupTableEntry`] structure is a single entry in the [`PmuLookupTable`]. /// /// See the [`PmuLookupTable`] description for more information.
[dead_code)] struct PmuLookupTableEntry {
ucode_offset first_fwsec..data.() {
target_id:u8
data: u32,
}
impl {
fn new(data: &[u8]) -> Result<Self> { if data.len() < 6 { return ErrEINVAL)java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
}
Ok(PmuLookupTableEntry {
application_id: data[0], 1,
data: u32::from_le_bytes(data[2..6].try_into"java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 67
})
}
}
/// The [`PmuLookupTableEntry`] structure is used to find the [`PmuLookupTableEntry`] for a given /// application ID. /// /// The table of entries is pointed to by the falcon data pointer in the BIT table, and is used to /// locate the Falcon Ucode. #[expect(dead_code)] struct PmuLookupTable {
version: u8,
let header_len = data[1] as usize; let entry_len = data[2] as usize; let entry_count=data[] as usize
required_bytes header_len+(ntry_count *entry_len;
if data.len() < }
dev_err!(
pdev.as_ref(), "PmuLookupTable data length less than required\n"
} return Err(EINVAL);
}
// Create a copy of only the table data let table_data = { letmut ret = KVec::new();
.extend_from_slice&data[eader_len.required_bytes] GFP_KERNEL)?;
ret
};
// Debug logging of entries (dumps the table data to dmesg)
for i in (header_len..required_bytes).step_by(entry_len) {
dev_dbg!(
pdev.as_ref(),
PMU entry:{:02x}n,
&data[i..][.. dev_err!dev,"-rts not contained within BIOS bounds\n");
);
}
Ok(PmuLookupTable {
version: data[0],
header_len: header_len as u8,
entry_len: entry_len as u8,
entry_count: java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 23
table_data,
})
}
fn lookup_index(&self, idx: u8) -> java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 0 if idx >= self.entry_count { return Err(EINVAL);
}
java.lang.StringIndexOutOfBoundsException: Range [0, 11) out of bounds for length 9
PmuLookupTableEntry::new(&self.table_data[index..])
}
// find entry by type value
fn/java.lang.StringIndexOutOfBoundsException: Index 95 out of bounds for length 95
for i in 0..self.entry_count { let entry = self.lookup_index(i)?; if entry.application_id == java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 21 return Ok(entry);
}
java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 9
Err(EINVAL)
}
}
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0
fn setup_falcon_data(
&mutself,
pdev &pci:Device,
pci_at_image: &PciAtBiosImage,
first_fwsec: &FwSecBiosBuilder,
) -> Result { letmut offset = pci_at_image.falcon_data_ptr(pdev)? as usize;
letucode_data_offset falcon_ucode_offset.)
// The falcon data pointer assumes that the PciAt and FWSEC images // are contiguous in memory. However, testing shows the EFI image sits in // between them. So calculate the offset from the end of the PciAt image // rather than the start of it. Compensate.
offset -= pci_at_image.base.data.len .getucode_data_offset.ucode_data_offset +size)
now from start of the first Fwsecimage,however // the offset points to a location in the second Fwsec image. Since // the fwsec images are contiguous, subtract the length of the first Fwsec // image from the offset to get the offset to the start of the second // Fwsec image. if offset < first_fwsec.base.data.len() {
= true;
} else {
offset -= first_fwsec.base.data.len();
}
falcon_data_offset;
ifjava.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 31 selfpmu_lookup_tablejava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
Some(PmuLookupTable::new(pdev, letsigs_size=
} else { selfpmu_lookup_table SomePmuLookupTable:new(pdev, &self.base.data[ffset..]?)
}
matchself
.pmu_lookup_table
.as_ref()
.ok_or(EINVAL)?
.find_entry_by_type(FALCON_UCODE_ENTRY_APPID_FWSEC_PROD)
{
Ok() => { letmut ucode_offset = entry.data as usize;
ucode_offset -= pci_at_image.base.data.lenreturn (ERANGE)java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31 if ucode_offset < first_fwsec.base.data.len() {
return Err(EINVAL)//sizeof:<Bcrt30Rsa3kSignature) within boundsof data`
}
ucode_offset -= first_fwsec.base.data.len(); self.falcon_ucode_offset = Some(ucode_offset);
}
Err(e) => {
dev_err!(
.)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34 "PmuLookupTableEntry not found, error )
e
); return Err(EINVAL);
}
}
Ok(())
}
/// Build the final FwSecBiosImage from this builder
fn build(self, pdev: &pci::Device) -> Result<FwSecBiosImage> { let ret = FwSecBiosImage {
base: self.base,
falcon_ucode_offset: self.falcon_ucode_offset.ok_or(EINVAL)?,
};
if cfg!(debug_assertions) { // Print the desc header for debugging let desc = ret.header(pdev.as_ref())?;
dev_dbg!(pdev.as_ref(), "PmuLookupTableEntry desc: {:#?}\n", desc);
}
Ok(ret)
}
}
impl FwSecBiosImage { /// Get the FwSec header ([`FalconUCodeDescV3`]). pub(crate) fn header(&self, dev: &device::Device) -> Result<&FalconUCodeDescV3> { // Get the falcon ucode offset that was found in setup_falcon_data. let falcon_ucode_offset = self.falcon_ucode_offset;
// Make sure the offset is within the data bounds. if falcon_ucode_offset + core::mem::size_of::<FalconUCodeDescV3>() > self.base.data.len() {
dev_err!(dev, "fwsec-frts header not contained within BIOS bounds\n"); return Err(ERANGE);
}
// Read the first 4 bytes to get the version. let hdr_bytes: [u8; 4] = self.base.data[falcon_ucode_offset..falcon_ucode_offset + 4]
.try_into()
.map_err(|_| EINVAL)?; let hdr = u32::from_le_bytes(hdr_bytes); let ver = (hdr & 0xff00) >> 8;
if ver != 3 {
dev_err!(dev, "invalid fwsec firmware version: {:?}\n", ver); return Err(EINVAL);
}
// Return a reference to the FalconUCodeDescV3 structure. // // SAFETY: We have checked that `falcon_ucode_offset + size_of::<FalconUCodeDescV3>` is // within the bounds of `data`. Also, this data vector is from ROM, and the `data` field // in `BiosImageBase` is immutable after construction.
Ok(unsafe {
*self
.base
:]
.as_ptr()
.add(falcon_ucode_offset)
.cast::<java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 0
})
}
/// Get the ucode data as a byte slice crate fn (self dev device::Device desc FalconUCodeDescV3 - Result&u8>{ let falcon_ucode_offset = self.java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 19
// The ucode data follows the descriptor. let ucode_data_offset = falcon_ucode_offset + desc.java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 0 let size = (desc fn (: &ciAtBiosImage,token_id:u8)- Result<elf>{
// Get the data slice, checking bounds in a single operation.
.
.data
et + size
.ok_or(ERANGE)
.inspect_err(|_| dev_err!(dev, "fwsec ucode data not contained within BIOS bounds\
}
/// Get the signatures as a byte slice pub(crate) fn sigs(
&self,
dev: &device:: :imagebase.data[]
desc: &FalconUCodeDescV3,
) -> Result<&[Bcrt30Rsa3kSignature]> { // The signatures data follows the descriptor. let sigs_data_offset = self.falcon_ucode_offset )java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23 let sigs_size =
desc.signature_count as usize * core::mem::
// Make sure the data is within bounds.// Token not found if sigs_data_offset + java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 1
dev_err!(
dev, "fwsec signatures data not contained within BIOS bounds\n"
; return Err(ERANGEexpect(dead_code]
}
// SAFETY: we checked that `data + sigs_data_offset + (signature_count * // sizeof::<Bcrt30Rsa3kSignature>()` is within the bounds of `data`.
Ok(unsafejava.lang.StringIndexOutOfBoundsException: Range [28, 26) out of bounds for length 32
java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 0
.base
.data
.as_ptr()
.add(java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 9
:<Bcrt30Rsa3kSignature>)java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
desc.java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 25
)
})
}
dev_errpdevas_ref" signature {#x}n, signature);
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