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From: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	thgarnie-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
	keescook-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org,
	tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org,
	mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
	hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org,
	x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org,
	dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
Subject: [PATCH v2 1/2] x86/efi/64: Clean up code comment about efi region
Date: Wed, 8 Mar 2017 18:45:57 +0800	[thread overview]
Message-ID: <20170308104557.GE6570@x1> (raw)
In-Reply-To: <1488959258-4731-1-git-send-email-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>

EFI allocates runtime services regions starting from EFI_VA_START, -4G,
decrement to EFI_VA_END. So remove the bottom-up term to avoid confusion.

Signed-off-by: Baoquan He <bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---

 arch/x86/platform/efi/efi_64.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index a4695da..e941b29 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -47,8 +47,9 @@
 #include <asm/pgalloc.h>
 
 /*
- * We allocate runtime services regions bottom-up, starting from -4G, i.e.
- * 0xffff_ffff_0000_0000 and limit EFI VA mapping space to 64G.
+ * We allocate runtime services regions starting from -4G, i.e.
+ * 0xffff_ffff_0000_0000 and decrement as we go. The EFI VA mapping space
+ * is limited to 64G.
  */
 static u64 efi_va = EFI_VA_START;
 
-- 
2.5.5

      parent reply	other threads:[~2017-03-08 10:45 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-08  7:47 [PATCH 1/2] x86/efi: Correct a tiny mistake in code comment Baoquan He
2017-03-08  8:18 ` Dave Young
     [not found]   ` <20170308081812.GA12600-0VdLhd/A9Pl+NNSt+8eSiB/sF2h8X+2i0E9HWUfgJXw@public.gmane.org>
2017-03-08  8:45     ` Baoquan He
2017-03-08  8:54       ` Borislav Petkov
2017-03-08  9:08         ` Baoquan He
2017-03-09  1:38       ` Dave Young
2017-03-08  9:00   ` Bhupesh Sharma
     [not found]     ` <CACi5LpOjxiiCEvdOHGxHj_c+G-W3HKHr8EgOURpZ-cb5XqQnNQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-03-08  9:09       ` Baoquan He
2017-03-08  9:35         ` Borislav Petkov
     [not found]           ` <20170308093555.yrhygjxx4mu562lp-fF5Pk5pvG8Y@public.gmane.org>
2017-03-08 10:17             ` Baoquan He
2017-03-08 10:50               ` Borislav Petkov
     [not found]                 ` <20170308105047.pggc6hai3gplsbg2-fF5Pk5pvG8Y@public.gmane.org>
2017-03-09  0:48                   ` Dave Young
2017-03-08 20:05             ` Bhupesh Sharma
2017-03-08  9:45       ` Baoquan He
     [not found] ` <1488959258-4731-1-git-send-email-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-03-08  7:47   ` [PATCH 2/2] x86/mm/KASLR: Correct the upper boundary of KALSR mm regions if adjacent to EFI Baoquan He
     [not found]     ` <1488959258-4731-2-git-send-email-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-03-08  8:18       ` Dave Young
     [not found]         ` <20170308081857.GB12600-0VdLhd/A9Pl+NNSt+8eSiB/sF2h8X+2i0E9HWUfgJXw@public.gmane.org>
2017-03-08  8:35           ` Bhupesh Sharma
2017-03-08 15:32             ` Thomas Garnier
2017-03-15  6:13       ` Baoquan He
2017-03-15  6:31         ` Baoquan He
2017-03-08 10:45   ` Baoquan He [this message]

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