zig/lib/std / os/uefi/tables/system_table.zig

The EFI System Table contains pointers to the runtime and boot services tables. As the system_table may grow with new UEFI versions, it is important to check hdr.header_size. After successfully calling boot_services.exitBootServices, console_in_handle, con_in, console_out_handle, con_out, standard_error_handle, std_err, and boot_services should be set to null. After setting these attributes to null, hdr.crc32 must be recomputed.

 
const uefi = @import("std").os.uefi;
const BootServices = uefi.tables.BootServices;
const ConfigurationTable = uefi.tables.ConfigurationTable;
const Handle = uefi.Handle;
const RuntimeServices = uefi.tables.RuntimeServices;
const SimpleTextInputProtocol = uefi.protocol.SimpleTextInput;
const SimpleTextOutputProtocol = uefi.protocol.SimpleTextOutput;
const TableHeader = uefi.tables.TableHeader;

SystemTable

A null-terminated string that identifies the vendor that produces the system firmware of the platform.

 

/// The EFI System Table contains pointers to the runtime and boot services tables.
///
/// As the system_table may grow with new UEFI versions, it is important to check hdr.header_size.
///
/// After successfully calling boot_services.exitBootServices, console_in_handle,
/// con_in, console_out_handle, con_out, standard_error_handle, std_err, and
/// boot_services should be set to null. After setting these attributes to null,
/// hdr.crc32 must be recomputed.
pub const SystemTable = extern struct {
    hdr: TableHeader,

signature:

 

    /// A null-terminated string that identifies the vendor that produces the system firmware of the platform.
    firmware_vendor: [*:0]u16,
    firmware_revision: u32,
    console_in_handle: ?Handle,
    con_in: ?*SimpleTextInputProtocol,
    console_out_handle: ?Handle,
    con_out: ?*SimpleTextOutputProtocol,
    standard_error_handle: ?Handle,
    std_err: ?*SimpleTextOutputProtocol,
    runtime_services: *RuntimeServices,
    boot_services: ?*BootServices,
    number_of_table_entries: usize,
    configuration_table: [*]ConfigurationTable,

revision_1_02:

 

    pub const signature: u64 = 0x5453595320494249;
    pub const revision_1_02: u32 = (1 << 16) | 2;

revision_1_10:

 
    pub const revision_1_10: u32 = (1 << 16) | 10;

revision_2_00:

 
    pub const revision_2_00: u32 = (2 << 16);

revision_2_10:

 
    pub const revision_2_10: u32 = (2 << 16) | 10;

revision_2_20:

 
    pub const revision_2_20: u32 = (2 << 16) | 20;

revision_2_30:

 
    pub const revision_2_30: u32 = (2 << 16) | 30;

revision_2_31:

 
    pub const revision_2_31: u32 = (2 << 16) | 31;

revision_2_40:

 
    pub const revision_2_40: u32 = (2 << 16) | 40;

revision_2_50:

 
    pub const revision_2_50: u32 = (2 << 16) | 50;

revision_2_60:

 
    pub const revision_2_60: u32 = (2 << 16) | 60;

revision_2_70:

 
    pub const revision_2_70: u32 = (2 << 16) | 70;

revision_2_80:

 
    pub const revision_2_80: u32 = (2 << 16) | 80;

revision_2_90:

 
    pub const revision_2_90: u32 = (2 << 16) | 90;

revision_2_100:

 
    pub const revision_2_100: u32 = (2 << 16) | 100;

revision_2_110:

 
    pub const revision_2_110: u32 = (2 << 16) | 110;
};