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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2023-06-06 17:26:30 +0300 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2023-06-06 16:45:14 +0200 |
| commit | 2e9f46ee1599be8a50a5366eb3ef4a4b5acff0b7 (patch) | |
| tree | e6f2675fe8458cc3626738ada70ffd89911a53bc /samples/fprobe | |
| parent | dcdfdd40fa82b6704d2841938e5c8ec3051eb0d6 (diff) | |
| download | linux-stable-2e9f46ee1599be8a50a5366eb3ef4a4b5acff0b7.tar.gz linux-stable-2e9f46ee1599be8a50a5366eb3ef4a4b5acff0b7.tar.bz2 linux-stable-2e9f46ee1599be8a50a5366eb3ef4a4b5acff0b7.zip | |
efi/x86: Get full memory map in allocate_e820()
Currently allocate_e820() is only interested in the size of map and size
of memory descriptor to determine how many e820 entries the kernel
needs.
UEFI Specification version 2.9 introduces a new memory type --
unaccepted memory. To track unaccepted memory, the kernel needs to
allocate a bitmap. The size of the bitmap is dependent on the maximum
physical address present in the system. A full memory map is required to
find the maximum address.
Modify allocate_e820() to get a full memory map.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20230606142637.5171-3-kirill.shutemov@linux.intel.com
Diffstat (limited to 'samples/fprobe')
0 files changed, 0 insertions, 0 deletions