EFI allocate runtime services regions from EFI_VA_START, -4G, down to -64G, EFI_VA_END. The mechanism was introduced in commit d2f7cbe7b26a7 ("x86/efi: Runtime services virtual mapping").
Clean it up to avoid confusion. Signed-off-by: Baoquan He <b...@redhat.com> Cc: Matt Fleming <m...@codeblueprint.co.uk> Cc: Ard Biesheuvel <ard.biesheu...@linaro.org> Cc: Thomas Gleixner <t...@linutronix.de> Cc: Ingo Molnar <mi...@redhat.com> Cc: "H. Peter Anvin" <h...@zytor.com> Cc: Borislav Petkov <b...@alien8.de> Cc: x...@kernel.org Cc: linux-...@vger.kernel.org --- arch/x86/platform/efi/efi_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index a4695da..6cbf9e0 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -47,7 +47,7 @@ #include <asm/pgalloc.h> /* - * We allocate runtime services regions bottom-up, starting from -4G, i.e. + * We allocate runtime services regions top-down, starting from -4G, i.e. * 0xffff_ffff_0000_0000 and limit EFI VA mapping space to 64G. */ static u64 efi_va = EFI_VA_START; -- 2.5.5