It is no longer necessary to locate the kernel as low as possible in physical memory, and so we can switch from efi_low_alloc() [which is a rather nasty concoction on top of GetMemoryMap()] to a new helper called efi_allocate_pages_aligned(), which simply rounds up the size to account for the alignment, and frees the misaligned pages again. So considering that the kernel can live anywhere in the physical address space, as long as its alignment requirements are met, let's switch to efi_allocate_pages_aligned() to allocate the pages. Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
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