linux-kernel - [PATCH V6 10/18] x86: Remove looking for setting of _PAGE_PAT

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1415019724-4317-11-git-send-email-jgross@suse.com>
Date:	Mon,  3 Nov 2014 14:01:56 +0100
From:	Juergen Gross <jgross@...e.com>
To:	hpa@...or.com, x86@...nel.org, tglx@...utronix.de,
	mingo@...hat.com, stefan.bader@...onical.com,
	linux-kernel@...r.kernel.org, xen-devel@...ts.xensource.com,
	konrad.wilk@...cle.com, ville.syrjala@...ux.intel.com,
	david.vrabel@...rix.com, jbeulich@...e.com, toshi.kani@...com,
	plagnioj@...osoft.com, tomi.valkeinen@...com, bhelgaas@...gle.com
Cc:	Juergen Gross <jgross@...e.com>
Subject: [PATCH V6 10/18] x86: Remove looking for setting of _PAGE_PAT_LARGE in pageattr.c

When modifying page attributes via change_page_attr_set_clr() don't
test for setting _PAGE_PAT_LARGE, as this is
- never done
- PAT support for large pages is not included in the kernel up to now

Signed-off-by: Juergen Gross <jgross@...e.com>
---
 arch/x86/mm/pageattr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index ae242a7..87c0d36 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -1307,7 +1307,7 @@ static int __change_page_attr_set_clr(struct cpa_data *cpa, int checkalias)
 static inline int cache_attr(pgprot_t attr)
 {
 	return pgprot_val(attr) &
-		(_PAGE_PAT | _PAGE_PAT_LARGE | _PAGE_PWT | _PAGE_PCD);
+		(_PAGE_PAT | _PAGE_PWT | _PAGE_PCD);
 }
 
 static int change_page_attr_set_clr(unsigned long *addr, int numpages,
-- 
1.8.4.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/