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UEFI: Querying memory map size with no allocation

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This makes possible to query the memory map size from EFI firmware
without making any allocation beforehand. This makes possible to be
precise about the size of the allocation which will own a copy of
the memory map from the UEFI application.
This commit is contained in:
David Gonzalez Martin 2022-10-20 17:26:57 -05:00 committed by Veikka Tuominen
parent 972c39e2c0
commit 680d3cd1fc
1 changed files with 1 additions and 1 deletions
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2
lib/std/os/uefi/tables/boot_services.zig
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@ -34,7 +34,7 @@ pub const BootServices = extern struct {
freePages: std.meta.FnPtr(fn (memory: [*]align(4096) u8, pages: usize) callconv(.C) Status),
/// Returns the current memory map.
getMemoryMap: std.meta.FnPtr(fn (mmap_size: *usize, mmap: [*]MemoryDescriptor, mapKey: *usize, descriptor_size: *usize, descriptor_version: *u32) callconv(.C) Status),
getMemoryMap: std.meta.FnPtr(fn (mmap_size: *usize, mmap: ?[*]MemoryDescriptor, mapKey: *usize, descriptor_size: *usize, descriptor_version: *u32) callconv(.C) Status),
/// Allocates pool memory.
allocatePool: std.meta.FnPtr(fn (pool_type: MemoryType, size: usize, buffer: *[*]align(8) u8) callconv(.C) Status),