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std.os.uefi.tables: ziggify boot and runtime services (#23441)
* std.os.uefi.tables: ziggify boot and runtime services
* avoid T{} syntax
Co-authored-by: linusg <mail@linusgroh.de>
* misc fixes
* work
* self-review quickfixes
* dont make MemoryMapSlice generic
* more review fixes, work
* more work
* more work
* review fixes
* update boot/runtime services references throughout codebase
* self-review fixes
* couple of fixes i forgot to commit earlier
* fixes from integrating in my own project
* fixes from refAllDeclsRecursive
* Apply suggestions from code review
Co-authored-by: truemedian <truemedian@gmail.com>
* more fixes from review
* fixes from project integration
* make natural alignment of Guid align-8
* EventRegistration is a new opaque type
* fix getNextHighMonotonicCount
* fix locateProtocol
* fix exit
* partly revert 7372d65
* oops exit data_len is num of bytes
* fixes from project integration
* MapInfo consistency, MemoryType update per review
* turn EventRegistration back into a pointer
* forgot to finish updating MemoryType methods
* fix IntFittingRange calls
* set uefi.Page nat alignment
* Back out "set uefi.Page nat alignment"
This backs out commit cdd9bd6f7f5fb763f994b8fbe3e1a1c2996a2393.
* get rid of some error.NotFound-s
* fix .exit call in panic
* review comments, add format method
* fix resetSystem data alignment
* oops, didnt do a final refAllDeclsRecursive i guess
* review comments
* writergate update MemoryType.format
* fix rename
---------
Co-authored-by: linusg <mail@linusgroh.de>
Co-authored-by: truemedian <truemedian@gmail.com>
This commit is contained in:
Carmen
GitHub
parent
bd97b66186
commit
5b4e982169
10 changed files with 1897 additions and 144 deletions
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@ -58,7 +58,7 @@ pub fn sleep(nanoseconds: u64) void {
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const boot_services = std.os.uefi.system_table.boot_services.?;
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const us_from_ns = nanoseconds / std.time.ns_per_us;
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const us = math.cast(usize, us_from_ns) orelse math.maxInt(usize);
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_ = boot_services.stall(us);
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boot_services.stall(us) catch unreachable;
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return;
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}
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@ -654,9 +654,8 @@ pub fn defaultPanic(
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if (uefi.system_table.boot_services) |bs| {
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// ExitData buffer must be allocated using boot_services.allocatePool (spec: page 220)
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const exit_data: []u16 = uefi.raw_pool_allocator.alloc(u16, exit_msg.len + 1) catch @trap();
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@memcpy(exit_data, exit_msg[0..exit_data.len]); // Includes null terminator.
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_ = bs.exit(uefi.handle, .aborted, exit_data.len, exit_data.ptr);
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const exit_data = uefi.raw_pool_allocator.dupeZ(u16, exit_msg) catch @trap();
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bs.exit(uefi.handle, .aborted, exit_data) catch {};
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}
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@trap();
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},
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@ -24,9 +24,51 @@ pub var handle: Handle = undefined;
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/// A pointer to the EFI System Table that is passed to the EFI image's entry point.
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pub var system_table: *tables.SystemTable = undefined;
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/// UEFI's memory interfaces exclusively act on 4096-byte pages.
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pub const Page = [4096]u8;
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/// A handle to an event structure.
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pub const Event = *opaque {};
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pub const EventRegistration = *const opaque {};
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pub const EventType = packed struct(u32) {
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lo_context: u8 = 0,
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/// If an event of this type is not already in the signaled state, then
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/// the event’s NotificationFunction will be queued at the event’s NotifyTpl
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/// whenever the event is being waited on via EFI_BOOT_SERVICES.WaitForEvent()
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/// or EFI_BOOT_SERVICES.CheckEvent() .
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wait: bool = false,
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/// The event’s NotifyFunction is queued whenever the event is signaled.
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signal: bool = false,
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hi_context: u20 = 0,
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/// The event is allocated from runtime memory. If an event is to be signaled
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/// after the call to EFI_BOOT_SERVICES.ExitBootServices() the event’s data
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/// structure and notification function need to be allocated from runtime
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/// memory.
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runtime: bool = false,
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timer: bool = false,
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/// This event should not be combined with any other event types. This event
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/// type is functionally equivalent to the EFI_EVENT_GROUP_EXIT_BOOT_SERVICES
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/// event group.
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pub const signal_exit_boot_services: EventType = .{
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.signal = true,
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.lo_context = 1,
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};
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/// The event is to be notified by the system when SetVirtualAddressMap()
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/// is performed. This event type is a composite of EVT_NOTIFY_SIGNAL,
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/// EVT_RUNTIME, and EVT_RUNTIME_CONTEXT and should not be combined with
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/// any other event types.
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pub const signal_virtual_address_change: EventType = .{
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.runtime = true,
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.hi_context = 0x20000,
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.signal = true,
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.lo_context = 2,
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};
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};
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/// The calling convention used for all external functions part of the UEFI API.
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pub const cc: std.builtin.CallingConvention = switch (@import("builtin").target.cpu.arch) {
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.x86_64 => .{ .x86_64_win = .{} },
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@ -52,7 +94,11 @@ pub const IpAddress = extern union {
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/// GUIDs are align(8) unless otherwise specified.
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pub const Guid = extern struct {
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time_low: u32,
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comptime {
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std.debug.assert(std.mem.Alignment.of(Guid) == .@"8");
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}
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time_low: u32 align(8),
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time_mid: u16,
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time_high_and_version: u16,
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clock_seq_high_and_reserved: u8,
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@ -60,7 +106,7 @@ pub const Guid = extern struct {
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node: [6]u8,
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/// Format GUID into hexadecimal lowercase xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx format
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pub fn format(self: @This(), writer: *std.io.Writer) std.io.Writer.Error!void {
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pub fn format(self: Guid, writer: *std.io.Writer) std.io.Writer.Error!void {
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const time_low = @byteSwap(self.time_low);
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const time_mid = @byteSwap(self.time_mid);
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const time_high_and_version = @byteSwap(self.time_high_and_version);
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@ -75,7 +121,7 @@ pub const Guid = extern struct {
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});
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}
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pub fn eql(a: std.os.uefi.Guid, b: std.os.uefi.Guid) bool {
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pub fn eql(a: Guid, b: Guid) bool {
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return a.time_low == b.time_low and
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a.time_mid == b.time_mid and
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a.time_high_and_version == b.time_high_and_version and
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@ -28,14 +28,16 @@ const UefiPoolAllocator = struct {
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const full_len = metadata_len + len;
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var unaligned_ptr: [*]align(8) u8 = undefined;
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if (uefi.system_table.boot_services.?.allocatePool(uefi.efi_pool_memory_type, full_len, &unaligned_ptr) != .success) return null;
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const unaligned_slice = uefi.system_table.boot_services.?.allocatePool(
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uefi.efi_pool_memory_type,
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full_len,
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) catch return null;
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const unaligned_addr = @intFromPtr(unaligned_ptr);
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const unaligned_addr = @intFromPtr(unaligned_slice.ptr);
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const aligned_addr = mem.alignForward(usize, unaligned_addr + @sizeOf(usize), ptr_align);
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const aligned_ptr = unaligned_ptr + (aligned_addr - unaligned_addr);
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getHeader(aligned_ptr).* = unaligned_ptr;
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const aligned_ptr = unaligned_slice.ptr + (aligned_addr - unaligned_addr);
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getHeader(aligned_ptr).* = unaligned_slice.ptr;
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return aligned_ptr;
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}
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@ -76,7 +78,7 @@ const UefiPoolAllocator = struct {
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) void {
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_ = alignment;
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_ = ret_addr;
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_ = uefi.system_table.boot_services.?.freePool(getHeader(buf.ptr).*);
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uefi.system_table.boot_services.?.freePool(getHeader(buf.ptr).*) catch unreachable;
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}
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};
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@ -117,10 +119,12 @@ fn uefi_alloc(
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std.debug.assert(@intFromEnum(alignment) <= 3);
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var ptr: [*]align(8) u8 = undefined;
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if (uefi.system_table.boot_services.?.allocatePool(uefi.efi_pool_memory_type, len, &ptr) != .success) return null;
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const slice = uefi.system_table.boot_services.?.allocatePool(
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uefi.efi_pool_memory_type,
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len,
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) catch return null;
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return ptr;
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return slice.ptr;
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}
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fn uefi_resize(
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@ -161,5 +165,5 @@ fn uefi_free(
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) void {
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_ = alignment;
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_ = ret_addr;
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_ = uefi.system_table.boot_services.?.freePool(@alignCast(buf.ptr));
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uefi.system_table.boot_services.?.freePool(@alignCast(buf.ptr)) catch unreachable;
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}
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@ -1,3 +1,12 @@
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const std = @import("std");
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const uefi = std.os.uefi;
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const Handle = uefi.Handle;
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const Event = uefi.Event;
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const Guid = uefi.Guid;
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const cc = uefi.cc;
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const math = std.math;
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const assert = std.debug.assert;
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pub const BootServices = @import("tables/boot_services.zig").BootServices;
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pub const RuntimeServices = @import("tables/runtime_services.zig").RuntimeServices;
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pub const ConfigurationTable = @import("tables/configuration_table.zig").ConfigurationTable;
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@ -7,29 +16,90 @@ pub const TableHeader = @import("tables/table_header.zig").TableHeader;
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pub const EventNotify = *const fn (event: Event, ctx: *anyopaque) callconv(cc) void;
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pub const TimerDelay = enum(u32) {
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timer_cancel,
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timer_periodic,
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timer_relative,
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cancel,
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periodic,
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relative,
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};
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pub const MemoryType = enum(u32) {
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pub const Oem = math.IntFittingRange(
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0,
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@intFromEnum(MemoryType.oem_end) - @intFromEnum(MemoryType.oem_start),
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);
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pub const Vendor = math.IntFittingRange(
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0,
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@intFromEnum(MemoryType.vendor_end) - @intFromEnum(MemoryType.vendor_start),
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);
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/// can only be allocated using .allocate_any_pages mode unless you are explicitly targeting an interface that states otherwise
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reserved_memory_type,
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loader_code,
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loader_data,
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boot_services_code,
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boot_services_data,
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/// can only be allocated using .allocate_any_pages mode unless you are explicitly targeting an interface that states otherwise
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runtime_services_code,
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/// can only be allocated using .allocate_any_pages mode unless you are explicitly targeting an interface that states otherwise
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runtime_services_data,
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conventional_memory,
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unusable_memory,
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/// can only be allocated using .allocate_any_pages mode unless you are explicitly targeting an interface that states otherwise
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acpi_reclaim_memory,
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/// can only be allocated using .allocate_any_pages mode unless you are explicitly targeting an interface that states otherwise
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acpi_memory_nvs,
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memory_mapped_io,
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memory_mapped_io_port_space,
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pal_code,
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persistent_memory,
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unaccepted_memory,
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max_memory_type,
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invalid_start,
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invalid_end = 0x6FFFFFFF,
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/// MemoryType values in the range 0x70000000..0x7FFFFFFF are reserved for OEM use.
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oem_start = 0x70000000,
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oem_end = 0x7FFFFFFF,
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/// MemoryType values in the range 0x80000000..0xFFFFFFFF are reserved for use by UEFI
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/// OS loaders that are provided by operating system vendors.
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vendor_start = 0x80000000,
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vendor_end = 0xFFFFFFFF,
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_,
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pub fn fromOem(value: Oem) MemoryType {
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const oem_start = @intFromEnum(MemoryType.oem_start);
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return @enumFromInt(oem_start + value);
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}
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pub fn toOem(memtype: MemoryType) ?Oem {
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const as_int = @intFromEnum(memtype);
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const oem_start = @intFromEnum(MemoryType.oem_start);
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if (as_int < oem_start) return null;
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if (as_int > @intFromEnum(MemoryType.oem_end)) return null;
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return @truncate(as_int - oem_start);
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}
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pub fn fromVendor(value: Vendor) MemoryType {
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const vendor_start = @intFromEnum(MemoryType.vendor_start);
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return @enumFromInt(vendor_start + value);
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}
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pub fn toVendor(memtype: MemoryType) ?Vendor {
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const as_int = @intFromEnum(memtype);
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const vendor_start = @intFromEnum(MemoryType.vendor_start);
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if (as_int < @intFromEnum(MemoryType.vendor_end)) return null;
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if (as_int > @intFromEnum(MemoryType.vendor_end)) return null;
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return @truncate(as_int - vendor_start);
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}
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pub fn format(self: MemoryType, w: *std.io.Writer) std.io.WriteError!void {
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if (self.toOem()) |oemval|
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try w.print("OEM({X})", .{oemval})
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else if (self.toVendor()) |vendorval|
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try w.print("Vendor({X})", .{vendorval})
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else if (std.enums.tagName(MemoryType, self)) |name|
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try w.print("{s}", .{name})
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else
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try w.print("INVALID({X})", .{@intFromEnum(self)});
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}
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};
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pub const MemoryDescriptorAttribute = packed struct(u64) {
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@ -51,6 +121,8 @@ pub const MemoryDescriptorAttribute = packed struct(u64) {
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memory_runtime: bool,
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};
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pub const MemoryMapKey = enum(usize) { _ };
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pub const MemoryDescriptor = extern struct {
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type: MemoryType,
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physical_start: u64,
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@ -59,20 +131,121 @@ pub const MemoryDescriptor = extern struct {
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attribute: MemoryDescriptorAttribute,
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};
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pub const MemoryMapInfo = struct {
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key: MemoryMapKey,
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descriptor_size: usize,
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descriptor_version: u32,
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/// The number of descriptors in the map.
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len: usize,
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};
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pub const MemoryMapSlice = struct {
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info: MemoryMapInfo,
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ptr: [*]align(@alignOf(MemoryDescriptor)) u8,
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pub fn iterator(self: MemoryMapSlice) MemoryDescriptorIterator {
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return .{ .ctx = self };
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}
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pub fn get(self: MemoryMapSlice, index: usize) ?*MemoryDescriptor {
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if (index >= self.info.len) return null;
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return self.getUnchecked(index);
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}
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pub fn getUnchecked(self: MemoryMapSlice, index: usize) *MemoryDescriptor {
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const offset: usize = index * self.info.descriptor_size;
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return @alignCast(@ptrCast(self.ptr[offset..]));
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}
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};
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pub const MemoryDescriptorIterator = struct {
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ctx: MemoryMapSlice,
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index: usize = 0,
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pub fn next(self: *MemoryDescriptorIterator) ?*MemoryDescriptor {
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const md = self.ctx.get(self.index) orelse return null;
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self.index += 1;
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return md;
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}
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};
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pub const LocateSearchType = enum(u32) {
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all_handles,
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by_register_notify,
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by_protocol,
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};
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pub const OpenProtocolAttributes = packed struct(u32) {
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by_handle_protocol: bool = false,
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get_protocol: bool = false,
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test_protocol: bool = false,
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by_child_controller: bool = false,
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by_driver: bool = false,
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exclusive: bool = false,
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reserved: u26 = 0,
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pub const LocateSearch = union(LocateSearchType) {
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all_handles,
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by_register_notify: uefi.EventRegistration,
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by_protocol: *const Guid,
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};
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pub const OpenProtocolAttributes = enum(u32) {
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pub const Bits = packed struct(u32) {
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by_handle_protocol: bool = false,
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get_protocol: bool = false,
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test_protocol: bool = false,
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by_child_controller: bool = false,
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by_driver: bool = false,
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exclusive: bool = false,
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reserved: u26 = 0,
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};
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by_handle_protocol = @bitCast(Bits{ .by_handle_protocol = true }),
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get_protocol = @bitCast(Bits{ .get_protocol = true }),
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test_protocol = @bitCast(Bits{ .test_protocol = true }),
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by_child_controller = @bitCast(Bits{ .by_child_controller = true }),
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by_driver = @bitCast(Bits{ .by_driver = true }),
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by_driver_exclusive = @bitCast(Bits{ .by_driver = true, .exclusive = true }),
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exclusive = @bitCast(Bits{ .exclusive = true }),
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_,
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pub fn fromBits(bits: Bits) OpenProtocolAttributes {
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return @bitCast(bits);
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}
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pub fn toBits(self: OpenProtocolAttributes) Bits {
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return @bitCast(self);
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}
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};
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pub const OpenProtocolArgs = union(OpenProtocolAttributes) {
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/// Used in the implementation of `handleProtocol`.
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by_handle_protocol: struct { agent: ?Handle = null, controller: ?Handle = null },
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/// Used by a driver to get a protocol interface from a handle. Care must be
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/// taken when using this open mode because the driver that opens a protocol
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/// interface in this manner will not be informed if the protocol interface
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/// is uninstalled or reinstalled. The caller is also not required to close
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/// the protocol interface with `closeProtocol`.
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get_protocol: struct { agent: ?Handle = null, controller: ?Handle = null },
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/// Used by a driver to test for the existence of a protocol interface on a
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/// handle. The caller only use the return status code. The caller is also
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/// not required to close the protocol interface with `closeProtocol`.
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test_protocol: struct { agent: ?Handle = null, controller: ?Handle = null },
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/// Used by bus drivers to show that a protocol interface is being used by one
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/// of the child controllers of a bus. This information is used by
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/// `BootServices.connectController` to recursively connect all child controllers
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/// and by `BootServices.disconnectController` to get the list of child
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/// controllers that a bus driver created.
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by_child_controller: struct { agent: Handle, controller: Handle },
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/// Used by a driver to gain access to a protocol interface. When this mode
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/// is used, the driver’s Stop() function will be called by
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/// `BootServices.disconnectController` if the protocol interface is reinstalled
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/// or uninstalled. Once a protocol interface is opened by a driver with this
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/// attribute, no other drivers will be allowed to open the same protocol interface
|
||||
/// with the `.by_driver` attribute.
|
||||
by_driver: struct { agent: Handle, controller: Handle },
|
||||
/// Used by a driver to gain exclusive access to a protocol interface. If any
|
||||
/// other drivers have the protocol interface opened with an attribute of
|
||||
/// `.by_driver`, then an attempt will be made to remove them with
|
||||
/// `BootServices.disconnectController`.
|
||||
by_driver_exclusive: struct { agent: Handle, controller: Handle },
|
||||
/// Used by applications to gain exclusive access to a protocol interface. If
|
||||
/// any drivers have the protocol interface opened with an attribute of
|
||||
/// `.by_driver`, then an attempt will be made to remove them by calling the
|
||||
/// driver’s Stop() function.
|
||||
exclusive: struct { agent: Handle, controller: ?Handle = null },
|
||||
};
|
||||
|
||||
pub const ProtocolInformationEntry = extern struct {
|
||||
|
|
@ -83,19 +256,25 @@ pub const ProtocolInformationEntry = extern struct {
|
|||
};
|
||||
|
||||
pub const InterfaceType = enum(u32) {
|
||||
efi_native_interface,
|
||||
native,
|
||||
};
|
||||
|
||||
pub const AllocateLocation = union(AllocateType) {
|
||||
any,
|
||||
max_address: [*]align(4096) uefi.Page,
|
||||
address: [*]align(4096) uefi.Page,
|
||||
};
|
||||
|
||||
pub const AllocateType = enum(u32) {
|
||||
allocate_any_pages,
|
||||
allocate_max_address,
|
||||
allocate_address,
|
||||
any,
|
||||
max_address,
|
||||
address,
|
||||
};
|
||||
|
||||
pub const PhysicalAddress = u64;
|
||||
|
||||
pub const CapsuleHeader = extern struct {
|
||||
capsule_guid: Guid align(8),
|
||||
capsule_guid: Guid,
|
||||
header_size: u32,
|
||||
flags: u32,
|
||||
capsule_image_size: u32,
|
||||
|
|
@ -110,13 +289,13 @@ pub const UefiCapsuleBlockDescriptor = extern struct {
|
|||
};
|
||||
|
||||
pub const ResetType = enum(u32) {
|
||||
reset_cold,
|
||||
reset_warm,
|
||||
reset_shutdown,
|
||||
reset_platform_specific,
|
||||
cold,
|
||||
warm,
|
||||
shutdown,
|
||||
platform_specific,
|
||||
};
|
||||
|
||||
pub const global_variable align(8) = Guid{
|
||||
pub const global_variable = Guid{
|
||||
.time_low = 0x8be4df61,
|
||||
.time_mid = 0x93ca,
|
||||
.time_high_and_version = 0x11d2,
|
||||
|
|
@ -128,10 +307,3 @@ pub const global_variable align(8) = Guid{
|
|||
test {
|
||||
std.testing.refAllDeclsRecursive(@This());
|
||||
}
|
||||
|
||||
const std = @import("std");
|
||||
const uefi = std.os.uefi;
|
||||
const Handle = uefi.Handle;
|
||||
const Event = uefi.Event;
|
||||
const Guid = uefi.Guid;
|
||||
const cc = uefi.cc;
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load diff
|
|
@ -5,7 +5,7 @@ pub const ConfigurationTable = extern struct {
|
|||
vendor_guid: Guid,
|
||||
vendor_table: *anyopaque,
|
||||
|
||||
pub const acpi_20_table_guid align(8) = Guid{
|
||||
pub const acpi_20_table_guid: Guid = .{
|
||||
.time_low = 0x8868e871,
|
||||
.time_mid = 0xe4f1,
|
||||
.time_high_and_version = 0x11d3,
|
||||
|
|
@ -13,7 +13,7 @@ pub const ConfigurationTable = extern struct {
|
|||
.clock_seq_low = 0x22,
|
||||
.node = [_]u8{ 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81 },
|
||||
};
|
||||
pub const acpi_10_table_guid align(8) = Guid{
|
||||
pub const acpi_10_table_guid: Guid = .{
|
||||
.time_low = 0xeb9d2d30,
|
||||
.time_mid = 0x2d88,
|
||||
.time_high_and_version = 0x11d3,
|
||||
|
|
@ -21,7 +21,7 @@ pub const ConfigurationTable = extern struct {
|
|||
.clock_seq_low = 0x16,
|
||||
.node = [_]u8{ 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d },
|
||||
};
|
||||
pub const sal_system_table_guid align(8) = Guid{
|
||||
pub const sal_system_table_guid: Guid = .{
|
||||
.time_low = 0xeb9d2d32,
|
||||
.time_mid = 0x2d88,
|
||||
.time_high_and_version = 0x113d,
|
||||
|
|
@ -29,7 +29,7 @@ pub const ConfigurationTable = extern struct {
|
|||
.clock_seq_low = 0x16,
|
||||
.node = [_]u8{ 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d },
|
||||
};
|
||||
pub const smbios_table_guid align(8) = Guid{
|
||||
pub const smbios_table_guid: Guid = .{
|
||||
.time_low = 0xeb9d2d31,
|
||||
.time_mid = 0x2d88,
|
||||
.time_high_and_version = 0x11d3,
|
||||
|
|
@ -37,7 +37,7 @@ pub const ConfigurationTable = extern struct {
|
|||
.clock_seq_low = 0x16,
|
||||
.node = [_]u8{ 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d },
|
||||
};
|
||||
pub const smbios3_table_guid align(8) = Guid{
|
||||
pub const smbios3_table_guid: Guid = .{
|
||||
.time_low = 0xf2fd1544,
|
||||
.time_mid = 0x9794,
|
||||
.time_high_and_version = 0x4a2c,
|
||||
|
|
@ -45,7 +45,7 @@ pub const ConfigurationTable = extern struct {
|
|||
.clock_seq_low = 0x2e,
|
||||
.node = [_]u8{ 0xe5, 0xbb, 0xcf, 0x20, 0xe3, 0x94 },
|
||||
};
|
||||
pub const mps_table_guid align(8) = Guid{
|
||||
pub const mps_table_guid: Guid = .{
|
||||
.time_low = 0xeb9d2d2f,
|
||||
.time_mid = 0x2d88,
|
||||
.time_high_and_version = 0x11d3,
|
||||
|
|
@ -53,7 +53,7 @@ pub const ConfigurationTable = extern struct {
|
|||
.clock_seq_low = 0x16,
|
||||
.node = [_]u8{ 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d },
|
||||
};
|
||||
pub const json_config_data_table_guid align(8) = Guid{
|
||||
pub const json_config_data_table_guid: Guid = .{
|
||||
.time_low = 0x87367f87,
|
||||
.time_mid = 0x1119,
|
||||
.time_high_and_version = 0x41ce,
|
||||
|
|
@ -61,7 +61,7 @@ pub const ConfigurationTable = extern struct {
|
|||
.clock_seq_low = 0xec,
|
||||
.node = [_]u8{ 0x8b, 0xe0, 0x11, 0x1f, 0x55, 0x8a },
|
||||
};
|
||||
pub const json_capsule_data_table_guid align(8) = Guid{
|
||||
pub const json_capsule_data_table_guid: Guid = .{
|
||||
.time_low = 0x35e7a725,
|
||||
.time_mid = 0x8dd2,
|
||||
.time_high_and_version = 0x4cac,
|
||||
|
|
@ -69,7 +69,7 @@ pub const ConfigurationTable = extern struct {
|
|||
.clock_seq_low = 0x11,
|
||||
.node = [_]u8{ 0x33, 0xcd, 0xa8, 0x10, 0x90, 0x56 },
|
||||
};
|
||||
pub const json_capsule_result_table_guid align(8) = Guid{
|
||||
pub const json_capsule_result_table_guid: Guid = .{
|
||||
.time_low = 0xdbc461c3,
|
||||
.time_mid = 0xb3de,
|
||||
.time_high_and_version = 0x422a,
|
||||
|
|
|
|||
|
|
@ -6,10 +6,12 @@ const Time = uefi.Time;
|
|||
const TimeCapabilities = uefi.TimeCapabilities;
|
||||
const Status = uefi.Status;
|
||||
const MemoryDescriptor = uefi.tables.MemoryDescriptor;
|
||||
const MemoryMapSlice = uefi.tables.MemoryMapSlice;
|
||||
const ResetType = uefi.tables.ResetType;
|
||||
const CapsuleHeader = uefi.tables.CapsuleHeader;
|
||||
const PhysicalAddress = uefi.tables.PhysicalAddress;
|
||||
const cc = uefi.cc;
|
||||
const Error = Status.Error;
|
||||
|
||||
/// Runtime services are provided by the firmware before and after exitBootServices has been called.
|
||||
///
|
||||
|
|
@ -23,50 +25,511 @@ pub const RuntimeServices = extern struct {
|
|||
hdr: TableHeader,
|
||||
|
||||
/// Returns the current time and date information, and the time-keeping capabilities of the hardware platform.
|
||||
getTime: *const fn (time: *uefi.Time, capabilities: ?*TimeCapabilities) callconv(cc) Status,
|
||||
_getTime: *const fn (time: *Time, capabilities: ?*TimeCapabilities) callconv(cc) Status,
|
||||
|
||||
/// Sets the current local time and date information
|
||||
setTime: *const fn (time: *uefi.Time) callconv(cc) Status,
|
||||
_setTime: *const fn (time: *const Time) callconv(cc) Status,
|
||||
|
||||
/// Returns the current wakeup alarm clock setting
|
||||
getWakeupTime: *const fn (enabled: *bool, pending: *bool, time: *uefi.Time) callconv(cc) Status,
|
||||
_getWakeupTime: *const fn (enabled: *bool, pending: *bool, time: *Time) callconv(cc) Status,
|
||||
|
||||
/// Sets the system wakeup alarm clock time
|
||||
setWakeupTime: *const fn (enable: *bool, time: ?*uefi.Time) callconv(cc) Status,
|
||||
_setWakeupTime: *const fn (enable: bool, time: ?*const Time) callconv(cc) Status,
|
||||
|
||||
/// Changes the runtime addressing mode of EFI firmware from physical to virtual.
|
||||
setVirtualAddressMap: *const fn (mmap_size: usize, descriptor_size: usize, descriptor_version: u32, virtual_map: [*]MemoryDescriptor) callconv(cc) Status,
|
||||
_setVirtualAddressMap: *const fn (mmap_size: usize, descriptor_size: usize, descriptor_version: u32, virtual_map: [*]align(@alignOf(MemoryDescriptor)) u8) callconv(cc) Status,
|
||||
|
||||
/// Determines the new virtual address that is to be used on subsequent memory accesses.
|
||||
convertPointer: *const fn (debug_disposition: usize, address: **anyopaque) callconv(cc) Status,
|
||||
_convertPointer: *const fn (debug_disposition: DebugDisposition, address: *?*anyopaque) callconv(cc) Status,
|
||||
|
||||
/// Returns the value of a variable.
|
||||
getVariable: *const fn (var_name: [*:0]const u16, vendor_guid: *align(8) const Guid, attributes: ?*u32, data_size: *usize, data: ?*anyopaque) callconv(cc) Status,
|
||||
_getVariable: *const fn (var_name: [*:0]const u16, vendor_guid: *const Guid, attributes: ?*VariableAttributes, data_size: *usize, data: ?*anyopaque) callconv(cc) Status,
|
||||
|
||||
/// Enumerates the current variable names.
|
||||
getNextVariableName: *const fn (var_name_size: *usize, var_name: [*:0]u16, vendor_guid: *align(8) Guid) callconv(cc) Status,
|
||||
_getNextVariableName: *const fn (var_name_size: *usize, var_name: ?[*:0]const u16, vendor_guid: *Guid) callconv(cc) Status,
|
||||
|
||||
/// Sets the value of a variable.
|
||||
setVariable: *const fn (var_name: [*:0]const u16, vendor_guid: *align(8) const Guid, attributes: u32, data_size: usize, data: *anyopaque) callconv(cc) Status,
|
||||
_setVariable: *const fn (var_name: [*:0]const u16, vendor_guid: *const Guid, attributes: VariableAttributes, data_size: usize, data: [*]const u8) callconv(cc) Status,
|
||||
|
||||
/// Return the next high 32 bits of the platform's monotonic counter
|
||||
getNextHighMonotonicCount: *const fn (high_count: *u32) callconv(cc) Status,
|
||||
_getNextHighMonotonicCount: *const fn (high_count: *u32) callconv(cc) Status,
|
||||
|
||||
/// Resets the entire platform.
|
||||
resetSystem: *const fn (reset_type: ResetType, reset_status: Status, data_size: usize, reset_data: ?*const anyopaque) callconv(cc) noreturn,
|
||||
_resetSystem: *const fn (reset_type: ResetType, reset_status: Status, data_size: usize, reset_data: ?[*]const u16) callconv(cc) noreturn,
|
||||
|
||||
/// Passes capsules to the firmware with both virtual and physical mapping.
|
||||
/// Depending on the intended consumption, the firmware may process the capsule immediately.
|
||||
/// If the payload should persist across a system reset, the reset value returned from
|
||||
/// `queryCapsuleCapabilities` must be passed into resetSystem and will cause the capsule
|
||||
/// to be processed by the firmware as part of the reset process.
|
||||
updateCapsule: *const fn (capsule_header_array: **CapsuleHeader, capsule_count: usize, scatter_gather_list: PhysicalAddress) callconv(cc) Status,
|
||||
_updateCapsule: *const fn (capsule_header_array: [*]*const CapsuleHeader, capsule_count: usize, scatter_gather_list: PhysicalAddress) callconv(cc) Status,
|
||||
|
||||
/// Returns if the capsule can be supported via `updateCapsule`
|
||||
queryCapsuleCapabilities: *const fn (capsule_header_array: **CapsuleHeader, capsule_count: usize, maximum_capsule_size: *usize, reset_type: ResetType) callconv(cc) Status,
|
||||
_queryCapsuleCapabilities: *const fn (capsule_header_array: [*]*const CapsuleHeader, capsule_count: usize, maximum_capsule_size: *usize, reset_type: *ResetType) callconv(cc) Status,
|
||||
|
||||
/// Returns information about the EFI variables
|
||||
queryVariableInfo: *const fn (attributes: *u32, maximum_variable_storage_size: *u64, remaining_variable_storage_size: *u64, maximum_variable_size: *u64) callconv(cc) Status,
|
||||
_queryVariableInfo: *const fn (attributes: VariableAttributes, maximum_variable_storage_size: *u64, remaining_variable_storage_size: *u64, maximum_variable_size: *u64) callconv(cc) Status,
|
||||
|
||||
pub const GetTimeError = uefi.UnexpectedError || error{
|
||||
DeviceError,
|
||||
Unsupported,
|
||||
};
|
||||
|
||||
pub const SetTimeError = uefi.UnexpectedError || error{
|
||||
DeviceError,
|
||||
Unsupported,
|
||||
};
|
||||
|
||||
pub const GetWakeupTimeError = uefi.UnexpectedError || error{
|
||||
DeviceError,
|
||||
Unsupported,
|
||||
};
|
||||
|
||||
pub const SetWakeupTimeError = uefi.UnexpectedError || error{
|
||||
InvalidParameter,
|
||||
DeviceError,
|
||||
Unsupported,
|
||||
};
|
||||
|
||||
pub const SetVirtualAddressMapError = uefi.UnexpectedError || error{
|
||||
Unsupported,
|
||||
NoMapping,
|
||||
NotFound,
|
||||
};
|
||||
|
||||
pub const ConvertPointerError = uefi.UnexpectedError || error{
|
||||
InvalidParameter,
|
||||
Unsupported,
|
||||
};
|
||||
|
||||
pub const GetVariableSizeError = uefi.UnexpectedError || error{
|
||||
DeviceError,
|
||||
Unsupported,
|
||||
};
|
||||
|
||||
pub const GetVariableError = GetVariableSizeError || error{
|
||||
BufferTooSmall,
|
||||
};
|
||||
|
||||
pub const SetVariableError = uefi.UnexpectedError || error{
|
||||
InvalidParameter,
|
||||
OutOfResources,
|
||||
DeviceError,
|
||||
WriteProtected,
|
||||
SecurityViolation,
|
||||
NotFound,
|
||||
Unsupported,
|
||||
};
|
||||
|
||||
pub const GetNextHighMonotonicCountError = uefi.UnexpectedError || error{
|
||||
DeviceError,
|
||||
Unsupported,
|
||||
};
|
||||
|
||||
pub const UpdateCapsuleError = uefi.UnexpectedError || error{
|
||||
InvalidParameter,
|
||||
DeviceError,
|
||||
Unsupported,
|
||||
OutOfResources,
|
||||
};
|
||||
|
||||
pub const QueryCapsuleCapabilitiesError = uefi.UnexpectedError || error{
|
||||
Unsupported,
|
||||
OutOfResources,
|
||||
};
|
||||
|
||||
pub const QueryVariableInfoError = uefi.UnexpectedError || error{
|
||||
InvalidParameter,
|
||||
Unsupported,
|
||||
};
|
||||
|
||||
/// Returns the current time and the time capabilities of the platform.
|
||||
pub fn getTime(
|
||||
self: *const RuntimeServices,
|
||||
) GetTimeError!struct { Time, TimeCapabilities } {
|
||||
var time: Time = undefined;
|
||||
var capabilities: TimeCapabilities = undefined;
|
||||
|
||||
switch (self._getTime(&time, &capabilities)) {
|
||||
.success => return .{ time, capabilities },
|
||||
.device_error => return error.DeviceError,
|
||||
.unsupported => return error.Unsupported,
|
||||
else => |status| return uefi.unexpectedStatus(status),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn setTime(self: *RuntimeServices, time: *const Time) SetTimeError!void {
|
||||
switch (self._setTime(time)) {
|
||||
.success => {},
|
||||
.device_error => return error.DeviceError,
|
||||
.unsupported => return error.Unsupported,
|
||||
else => |status| return uefi.unexpectedStatus(status),
|
||||
}
|
||||
}
|
||||
|
||||
pub const GetWakeupTime = struct {
|
||||
enabled: bool,
|
||||
pending: bool,
|
||||
time: Time,
|
||||
};
|
||||
|
||||
pub fn getWakeupTime(
|
||||
self: *const RuntimeServices,
|
||||
) GetWakeupTimeError!GetWakeupTime {
|
||||
var result: GetWakeupTime = undefined;
|
||||
switch (self._getWakeupTime(
|
||||
&result.enabled,
|
||||
&result.pending,
|
||||
&result.time,
|
||||
)) {
|
||||
.success => return result,
|
||||
.device_error => return error.DeviceError,
|
||||
.unsupported => return error.Unsupported,
|
||||
else => |status| return uefi.unexpectedStatus(status),
|
||||
}
|
||||
}
|
||||
|
||||
pub const SetWakeupTime = union(enum) {
|
||||
enabled: *const Time,
|
||||
disabled,
|
||||
};
|
||||
|
||||
pub fn setWakeupTime(
|
||||
self: *RuntimeServices,
|
||||
set: SetWakeupTime,
|
||||
) SetWakeupTimeError!void {
|
||||
switch (self._setWakeupTime(
|
||||
set != .disabled,
|
||||
if (set == .enabled) set.enabled else null,
|
||||
)) {
|
||||
.success => {},
|
||||
.invalid_parameter => return error.InvalidParameter,
|
||||
.device_error => return error.DeviceError,
|
||||
.unsupported => return error.Unsupported,
|
||||
else => |status| return uefi.unexpectedStatus(status),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn setVirtualAddressMap(
|
||||
self: *RuntimeServices,
|
||||
map: MemoryMapSlice,
|
||||
) SetVirtualAddressMapError!void {
|
||||
switch (self._setVirtualAddressMap(
|
||||
map.info.len * map.info.descriptor_size,
|
||||
map.info.descriptor_size,
|
||||
map.info.descriptor_version,
|
||||
@ptrCast(map.ptr),
|
||||
)) {
|
||||
.success => {},
|
||||
.unsupported => return error.Unsupported,
|
||||
.no_mapping => return error.NoMapping,
|
||||
.not_found => return error.NotFound,
|
||||
else => |status| return uefi.unexpectedStatus(status),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn convertPointer(
|
||||
self: *const RuntimeServices,
|
||||
comptime disposition: DebugDisposition,
|
||||
cvt: @FieldType(PointerConversion, @tagName(disposition)),
|
||||
) ConvertPointerError!?@FieldType(PointerConversion, @tagName(disposition)) {
|
||||
var pointer = cvt;
|
||||
|
||||
switch (self._convertPointer(disposition, @ptrCast(&pointer))) {
|
||||
.success => return pointer,
|
||||
.not_found => return null,
|
||||
.invalid_parameter => return error.InvalidParameter,
|
||||
.unsupported => return error.Unsupported,
|
||||
else => |status| return uefi.unexpectedStatus(status),
|
||||
}
|
||||
}
|
||||
|
||||
/// Returns the length of the variable's data and its attributes.
|
||||
pub fn getVariableSize(
|
||||
self: *const RuntimeServices,
|
||||
name: [*:0]const u16,
|
||||
guid: *const Guid,
|
||||
) GetVariableSizeError!?struct { usize, VariableAttributes } {
|
||||
var size: usize = 0;
|
||||
var attrs: VariableAttributes = undefined;
|
||||
|
||||
switch (self._getVariable(
|
||||
name,
|
||||
guid,
|
||||
&attrs,
|
||||
&size,
|
||||
null,
|
||||
)) {
|
||||
.buffer_too_small => return .{ size, attrs },
|
||||
.not_found => return null,
|
||||
.device_error => return error.DeviceError,
|
||||
.unsupported => return error.Unsupported,
|
||||
else => |status| return uefi.unexpectedStatus(status),
|
||||
}
|
||||
}
|
||||
|
||||
/// To determine the minimum necessary buffer size for the variable, call
|
||||
/// `getVariableSize` first.
|
||||
pub fn getVariable(
|
||||
self: *const RuntimeServices,
|
||||
name: [*:0]const u16,
|
||||
guid: *const Guid,
|
||||
buffer: []u8,
|
||||
) GetVariableError!?struct { []u8, VariableAttributes } {
|
||||
var attrs: VariableAttributes = undefined;
|
||||
var len = buffer.len;
|
||||
|
||||
switch (self._getVariable(
|
||||
name,
|
||||
guid,
|
||||
&attrs,
|
||||
&len,
|
||||
buffer.ptr,
|
||||
)) {
|
||||
.success => return .{ buffer[0..len], attrs },
|
||||
.not_found => return null,
|
||||
.buffer_too_small => return error.BufferTooSmall,
|
||||
.device_error => return error.DeviceError,
|
||||
.unsupported => return error.Unsupported,
|
||||
else => |status| return uefi.unexpectedStatus(status),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn variableNameIterator(
|
||||
self: *const RuntimeServices,
|
||||
buffer: []u16,
|
||||
) VariableNameIterator {
|
||||
buffer[0] = 0;
|
||||
return .{
|
||||
.services = self,
|
||||
.buffer = buffer,
|
||||
.guid = undefined,
|
||||
};
|
||||
}
|
||||
|
||||
pub fn setVariable(
|
||||
self: *RuntimeServices,
|
||||
name: [*:0]const u16,
|
||||
guid: *const Guid,
|
||||
attributes: VariableAttributes,
|
||||
data: []const u8,
|
||||
) SetVariableError!void {
|
||||
switch (self._setVariable(
|
||||
name,
|
||||
guid,
|
||||
attributes,
|
||||
data.len,
|
||||
data.ptr,
|
||||
)) {
|
||||
.success => {},
|
||||
.invalid_parameter => return error.InvalidParameter,
|
||||
.out_of_resources => return error.OutOfResources,
|
||||
.device_error => return error.DeviceError,
|
||||
.write_protected => return error.WriteProtected,
|
||||
.security_violation => return error.SecurityViolation,
|
||||
.not_found => return error.NotFound,
|
||||
.unsupported => return error.Unsupported,
|
||||
else => |status| return uefi.unexpectedStatus(status),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn getNextHighMonotonicCount(self: *const RuntimeServices) GetNextHighMonotonicCountError!u32 {
|
||||
var cnt: u32 = undefined;
|
||||
switch (self._getNextHighMonotonicCount(&cnt)) {
|
||||
.success => return cnt,
|
||||
.device_error => return error.DeviceError,
|
||||
.unsupported => return error.Unsupported,
|
||||
else => |status| return uefi.unexpectedStatus(status),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn resetSystem(
|
||||
self: *RuntimeServices,
|
||||
reset_type: ResetType,
|
||||
reset_status: Status,
|
||||
data: ?[]align(2) const u8,
|
||||
) noreturn {
|
||||
self._resetSystem(
|
||||
reset_type,
|
||||
reset_status,
|
||||
if (data) |d| d.len else 0,
|
||||
if (data) |d| @alignCast(@ptrCast(d.ptr)) else null,
|
||||
);
|
||||
}
|
||||
|
||||
pub fn updateCapsule(
|
||||
self: *RuntimeServices,
|
||||
capsules: []*const CapsuleHeader,
|
||||
scatter_gather_list: PhysicalAddress,
|
||||
) UpdateCapsuleError!void {
|
||||
switch (self._updateCapsule(
|
||||
capsules.ptr,
|
||||
capsules.len,
|
||||
scatter_gather_list,
|
||||
)) {
|
||||
.success => {},
|
||||
.invalid_parameter => return error.InvalidParameter,
|
||||
.device_error => return error.DeviceError,
|
||||
.unsupported => return error.Unsupported,
|
||||
.out_of_resources => return error.OutOfResources,
|
||||
else => |status| return uefi.unexpectedStatus(status),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn queryCapsuleCapabilities(
|
||||
self: *const RuntimeServices,
|
||||
capsules: []*const CapsuleHeader,
|
||||
) QueryCapsuleCapabilitiesError!struct { u64, ResetType } {
|
||||
var max_capsule_size: u64 = undefined;
|
||||
var reset_type: ResetType = undefined;
|
||||
|
||||
switch (self._queryCapsuleCapabilities(
|
||||
capsules.ptr,
|
||||
capsules.len,
|
||||
&max_capsule_size,
|
||||
&reset_type,
|
||||
)) {
|
||||
.success => return .{ max_capsule_size, reset_type },
|
||||
.unsupported => return error.Unsupported,
|
||||
.out_of_resources => return error.OutOfResources,
|
||||
else => |status| return uefi.unexpectedStatus(status),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn queryVariableInfo(
|
||||
self: *const RuntimeServices,
|
||||
// Note: .append_write is ignored
|
||||
attributes: VariableAttributes,
|
||||
) QueryVariableInfoError!VariableInfo {
|
||||
var res: VariableInfo = undefined;
|
||||
|
||||
switch (self._queryVariableInfo(
|
||||
attributes,
|
||||
&res.max_variable_storage_size,
|
||||
&res.remaining_variable_storage_size,
|
||||
&res.max_variable_size,
|
||||
)) {
|
||||
.success => return res,
|
||||
.invalid_parameter => return error.InvalidParameter,
|
||||
.unsupported => return error.Unsupported,
|
||||
else => |status| return uefi.unexpectedStatus(status),
|
||||
}
|
||||
}
|
||||
|
||||
pub const DebugDisposition = enum(usize) {
|
||||
const Bits = packed struct(usize) {
|
||||
optional_ptr: bool = false,
|
||||
_pad: std.meta.Int(.unsigned, @bitSizeOf(usize) - 1) = 0,
|
||||
};
|
||||
|
||||
pointer = @bitCast(Bits{}),
|
||||
optional = @bitCast(Bits{ .optional_ptr = true }),
|
||||
_,
|
||||
};
|
||||
|
||||
pub const PointerConversion = union(DebugDisposition) {
|
||||
pointer: *anyopaque,
|
||||
optional: ?*anyopaque,
|
||||
};
|
||||
|
||||
pub const VariableAttributes = packed struct(u32) {
|
||||
non_volatile: bool = false,
|
||||
bootservice_access: bool = false,
|
||||
runtime_access: bool = false,
|
||||
hardware_error_record: bool = false,
|
||||
/// Note: deprecated and should be considered reserved.
|
||||
authenticated_write_access: bool = false,
|
||||
time_based_authenticated_write_access: bool = false,
|
||||
append_write: bool = false,
|
||||
/// Indicates that the variable payload begins with a EFI_VARIABLE_AUTHENTICATION_3
|
||||
/// structure, and potentially more structures as indicated by fields of
|
||||
/// this structure.
|
||||
enhanced_authenticated_access: bool = false,
|
||||
_pad: u24 = 0,
|
||||
};
|
||||
|
||||
pub const VariableAuthentication3 = extern struct {
|
||||
version: u8 = 1,
|
||||
type: Type,
|
||||
metadata_size: u32,
|
||||
flags: Flags,
|
||||
|
||||
pub fn payloadConst(self: *const VariableAuthentication3) []const u8 {
|
||||
return @constCast(self).payload();
|
||||
}
|
||||
|
||||
pub fn payload(self: *VariableAuthentication3) []u8 {
|
||||
var ptr: [*]u8 = @ptrCast(self);
|
||||
return ptr[@sizeOf(VariableAuthentication3)..self.metadata_size];
|
||||
}
|
||||
|
||||
pub const Flags = packed struct(u32) {
|
||||
update_cert: bool = false,
|
||||
_pad: u31 = 0,
|
||||
};
|
||||
|
||||
pub const Type = enum(u8) {
|
||||
timestamp = 1,
|
||||
nonce = 2,
|
||||
_,
|
||||
};
|
||||
};
|
||||
|
||||
pub const VariableInfo = struct {
|
||||
max_variable_storage_size: u64,
|
||||
remaining_variable_storage_size: u64,
|
||||
max_variable_size: u64,
|
||||
};
|
||||
|
||||
pub const VariableNameIterator = struct {
|
||||
pub const NextSizeError = uefi.UnexpectedError || error{
|
||||
DeviceError,
|
||||
Unsupported,
|
||||
};
|
||||
|
||||
pub const IterateVariableNameError = NextSizeError || error{
|
||||
BufferTooSmall,
|
||||
};
|
||||
|
||||
services: *const RuntimeServices,
|
||||
buffer: []u16,
|
||||
guid: Guid,
|
||||
|
||||
pub fn nextSize(self: *VariableNameIterator) NextSizeError!?usize {
|
||||
var len: usize = 0;
|
||||
switch (self.services._getNextVariableName(
|
||||
&len,
|
||||
null,
|
||||
&self.guid,
|
||||
)) {
|
||||
.buffer_too_small => return len,
|
||||
.not_found => return null,
|
||||
.device_error => return error.DeviceError,
|
||||
.unsupported => return error.Unsupported,
|
||||
else => |status| return uefi.unexpectedStatus(status),
|
||||
}
|
||||
}
|
||||
|
||||
/// Call `nextSize` to get the length of the next variable name and check
|
||||
/// if `buffer` is large enough to hold the name.
|
||||
pub fn next(
|
||||
self: *VariableNameIterator,
|
||||
) IterateVariableNameError!?[:0]const u16 {
|
||||
var len = self.buffer.len;
|
||||
switch (self.services._getNextVariableName(
|
||||
&len,
|
||||
@ptrCast(self.buffer.ptr),
|
||||
&self.guid,
|
||||
)) {
|
||||
.success => return self.buffer[0 .. len - 1 :0],
|
||||
.not_found => return null,
|
||||
.buffer_too_small => return error.BufferTooSmall,
|
||||
.device_error => return error.DeviceError,
|
||||
.unsupported => return error.Unsupported,
|
||||
else => |status| return uefi.unexpectedStatus(status),
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
pub const signature: u64 = 0x56524553544e5552;
|
||||
};
|
||||
|
|
|
|||
|
|
@ -772,12 +772,12 @@ pub fn exit(status: u8) noreturn {
|
|||
if (native_os == .uefi) {
|
||||
const uefi = std.os.uefi;
|
||||
// exit() is only available if exitBootServices() has not been called yet.
|
||||
// This call to exit should not fail, so we don't care about its return value.
|
||||
// This call to exit should not fail, so we catch-ignore errors.
|
||||
if (uefi.system_table.boot_services) |bs| {
|
||||
_ = bs.exit(uefi.handle, @enumFromInt(status), 0, null);
|
||||
bs.exit(uefi.handle, @enumFromInt(status), null) catch {};
|
||||
}
|
||||
// If we can't exit, reboot the system instead.
|
||||
uefi.system_table.runtime_services.resetSystem(.reset_cold, @enumFromInt(status), 0, null);
|
||||
uefi.system_table.runtime_services.resetSystem(.cold, @enumFromInt(status), null);
|
||||
}
|
||||
system.exit(status);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -56,9 +56,7 @@ pub fn nanoTimestamp() i128 {
|
|||
return ns;
|
||||
},
|
||||
.uefi => {
|
||||
var value: std.os.uefi.Time = undefined;
|
||||
const status = std.os.uefi.system_table.runtime_services.getTime(&value, null);
|
||||
assert(status == .success);
|
||||
const value, _ = std.os.uefi.system_table.runtime_services.getTime() catch return 0;
|
||||
return value.toEpoch();
|
||||
},
|
||||
else => {
|
||||
|
|
@ -141,9 +139,7 @@ pub const Instant = struct {
|
|||
return .{ .timestamp = ns };
|
||||
},
|
||||
.uefi => {
|
||||
var value: std.os.uefi.Time = undefined;
|
||||
const status = std.os.uefi.system_table.runtime_services.getTime(&value, null);
|
||||
if (status != .success) return error.Unsupported;
|
||||
const value, _ = std.os.uefi.system_table.runtime_services.getTime() catch return error.Unsupported;
|
||||
return .{ .timestamp = value.toEpoch() };
|
||||
},
|
||||
// On darwin, use UPTIME_RAW instead of MONOTONIC as it ticks while
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue