diff --git a/std/os/uefi/tables.zig b/std/os/uefi/tables.zig
index 901591dea4..fbb9abe7f6 100644
--- a/std/os/uefi/tables.zig
+++ b/std/os/uefi/tables.zig
@@ -1,6 +1,7 @@
 pub const BootServices = @import("tables/boot_services.zig").BootServices;
 pub const ConfigurationTable = @import("tables/configuration_table.zig").ConfigurationTable;
 pub const global_variable align(8) = @import("tables/runtime_services.zig").global_variable;
+pub const MemoryDescriptor = @import("tables/boot_services.zig").MemoryDescriptor;
 pub const ResetType = @import("tables/runtime_services.zig").ResetType;
 pub const RuntimeServices = @import("tables/runtime_services.zig").RuntimeServices;
 pub const SystemTable = @import("tables/system_table.zig").SystemTable;
diff --git a/std/os/uefi/tables/boot_services.zig b/std/os/uefi/tables/boot_services.zig
index ae548137c3..55b0de3478 100644
--- a/std/os/uefi/tables/boot_services.zig
+++ b/std/os/uefi/tables/boot_services.zig
@@ -20,7 +20,7 @@ pub const BootServices = extern struct {
     restoreTpl: usize, // TODO
     allocatePages: usize, // TODO
     freePages: usize, // TODO
-    getMemoryMap: usize, // TODO
+    getMemoryMap: extern fn (*usize, [*]MemoryDescriptor, *usize, *usize, *u32) usize,
     allocatePool: usize, // TODO
     freePool: usize, // TODO
     createEvent: extern fn (u32, usize, ?extern fn (Event, ?*const c_void) void, ?*const c_void, *Event) usize,
@@ -81,3 +81,45 @@ pub const TimerDelay = extern enum(u32) {
     TimerPeriodic,
     TimerRelative,
 };
+
+pub const MemoryDescriptor = extern struct {
+    type: extern enum(u32) {
+        ReservedMemoryType,
+        LoaderCode,
+        LoaderData,
+        BootServicesCode,
+        BootServicesData,
+        RuntimeServicesCode,
+        RuntimeServicesData,
+        ConventionalMemory,
+        UnusableMemory,
+        ACPIReclaimMemory,
+        ACPIMemoryNVS,
+        MemoryMappedIO,
+        MemoryMappedIOPortSpace,
+        PalCode,
+        PersistentMemory,
+        MaxMemoryType,
+    },
+    physical_start: u64,
+    virtual_start: u64,
+    number_of_pages: usize,
+    attribute: packed struct {
+        uc: bool,
+        wc: bool,
+        wt: bool,
+        wb: bool,
+        uce: bool,
+        _pad1: u7,
+        wp: bool,
+        rp: bool,
+        xp: bool,
+        nv: bool,
+        more_reliable: bool,
+        ro: bool,
+        sp: bool,
+        cpu_crypto: bool,
+        _pad2: u43,
+        memory_runtime: bool,
+    },
+};