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x86/realmode: Add comment for Global bit usage in trampoline_pgd
authorJoerg Roedel <jroedel@suse.de>
Thu, 2 Dec 2021 15:32:23 +0000 (16:32 +0100)
committerBorislav Petkov <bp@suse.de>
Sat, 4 Dec 2021 12:50:08 +0000 (13:50 +0100)
commit9de4999050b5f2e847c84372c6a1aa1fe32bb269
tree01ad4d85c3fbb7eb34f47c1b63a2feb2ce33fbcd
parente1cd82a339024beda8439fb2e20718363ee989a8
x86/realmode: Add comment for Global bit usage in trampoline_pgd

Document the fact that using the trampoline_pgd will result in the
creation of global TLB entries in the user range of the address
space.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211202153226.22946-2-joro@8bytes.org
arch/x86/mm/init.c