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
WARNING: multiple messages have this Message-ID (diff)
From: Baoquan He <bhe@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: linux-efi@vger.kernel.org, thgarnie@google.com,
keescook@chromium.org, tglx@linutronix.de, mingo@redhat.com,
hpa@zytor.com, x86@kernel.org, akpm@linux-foundation.org,
dyoung@redhat.com
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@redhat.com>
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@redhat.com>
---
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
next prev parent reply other threads:[~2017-03-08 10:45 UTC|newest]
Thread overview: 35+ 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 7:47 ` 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 8:45 ` 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 9:09 ` Baoquan He
2017-03-08 9:35 ` Borislav Petkov
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 10:17 ` Baoquan He
2017-03-08 10:50 ` Borislav Petkov
[not found] ` <20170308105047.pggc6hai3gplsbg2-fF5Pk5pvG8Y@public.gmane.org>
2017-03-09 0:48 ` Dave Young
2017-03-09 0:48 ` Dave Young
2017-03-08 20:05 ` Bhupesh Sharma
2017-03-08 20:05 ` Bhupesh Sharma
2017-03-08 9:45 ` Baoquan He
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
2017-03-08 7:47 ` Baoquan He
[not found] ` <1488959258-4731-2-git-send-email-bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-03-08 8:18 ` Dave Young
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 8:35 ` Bhupesh Sharma
2017-03-08 15:32 ` Thomas Garnier
2017-03-15 6:13 ` Baoquan He
2017-03-15 6:13 ` Baoquan He
2017-03-15 6:31 ` Baoquan He
2017-03-15 6:31 ` Baoquan He
2017-03-08 10:45 ` Baoquan He [this message]
2017-03-08 10:45 ` [PATCH v2 1/2] x86/efi/64: Clean up code comment about efi region Baoquan He
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