From: jeremy.linton@arm.com (Jeremy Linton)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/7] arm64: Default kernel pages should be contiguous
Date: Wed, 7 Oct 2015 12:00:22 -0500 [thread overview]
Message-ID: <1444237225-13802-5-git-send-email-jeremy.linton@arm.com> (raw)
In-Reply-To: <1444237225-13802-1-git-send-email-jeremy.linton@arm.com>
The default page attributes for a PMD being broken should have the CONT bit
set. Create a new definition for an early boot range of PTE's that are
contiguous.
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
---
arch/arm64/include/asm/pgtable.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index cc19ec1..a1bcd64 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -72,6 +72,8 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
#define PAGE_KERNEL __pgprot(_PAGE_DEFAULT | PTE_PXN | PTE_UXN | PTE_DIRTY | PTE_WRITE)
#define PAGE_KERNEL_EXEC __pgprot(_PAGE_DEFAULT | PTE_UXN | PTE_DIRTY | PTE_WRITE)
+#define PAGE_KERNEL_EXEC_CONT __pgprot(_PAGE_DEFAULT | PTE_UXN | PTE_DIRTY | \
+ PTE_WRITE | PTE_CONT)
#define PAGE_HYP __pgprot(_PAGE_DEFAULT | PTE_HYP)
#define PAGE_HYP_DEVICE __pgprot(PROT_DEVICE_nGnRE | PTE_HYP)
--
2.4.3
next prev parent reply other threads:[~2015-10-07 17:00 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-07 17:00 [PATCHv3 0/7] arm64: Use contiguous PTE bit for the kernel linear mapping Jeremy Linton
2015-10-07 17:00 ` [PATCH 1/7] arm64: Add contiguous page flag shifts and constants Jeremy Linton
2015-10-07 17:00 ` [PATCH 2/7] arm64: PTE/PMD contiguous bit definition Jeremy Linton
2015-10-07 17:00 ` [PATCH 3/7] arm64: Macros to check/set/unset the contiguous bit Jeremy Linton
2015-10-07 17:00 ` Jeremy Linton [this message]
2015-10-07 17:00 ` [PATCH 5/7] arm64: Make the kernel page dump utility aware of the CONT bit Jeremy Linton
2015-10-07 17:00 ` [PATCH 6/7] arm64: Add a kernel Kconfig option to enable contiguous PTE marking Jeremy Linton
2015-10-07 17:00 ` [PATCH 7/7] arm64: Mark kernel page ranges contiguous Jeremy Linton
2015-10-09 12:50 ` [PATCHv3 0/7] arm64: Use contiguous PTE bit for the kernel linear mapping Catalin Marinas
2015-10-09 15:00 ` Jeremy Linton
2015-11-17 15:37 ` Jeremy Linton
2015-11-18 11:01 ` Will Deacon
2015-11-18 14:10 ` Jeremy Linton
-- strict thread matches above, loose matches on Subject: below --
2015-10-02 20:47 [PATCHv2 " Jeremy Linton
2015-10-02 20:47 ` [PATCH 4/7] arm64: Default kernel pages should be contiguous Jeremy Linton
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1444237225-13802-5-git-send-email-jeremy.linton@arm.com \
--to=jeremy.linton@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).