| 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
| ||
|
Message-Id: <201309240818.r8O8IdF9016374@localhost.localdomain> Date: Tue, 24 Sep 2013 10:18:39 +0200 From: Christophe Leroy <christophe.leroy@....fr> To: Benjamin Herrenschmidt <benh@...nel.crashing.org>, Paul Mackerras <paulus@...ba.org> CC: linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org, Joakim Tjernlund <joakim.tjernlund@...nsmode.se> Subject: [PATCH v4] powerpc 8xx: Fixing issue with CONFIG_PIN_TLB Activating CONFIG_PIN_TLB is supposed to pin the IMMR and the first three 8Mbytes pages. But the setting of MD_CTR to a pinnable entry was missing before the pinning of the third 8Mb page. As the index is decremented module 28 (MD_RSV4D is set) after every DTLB update, the third 8Mbytes page was not pinned. Signed-off-by: Christophe Leroy <christophe.leroy@....fr> diff -ur linux-3.11.org/arch/powerpc/kernel/head_8xx.S linux-3.11/arch/powerpc/kernel/head_8xx.S --- linux-3.11.org/arch/powerpc/kernel/head_8xx.S 2013-09-02 22:46:10.000000000 +0200 +++ linux-3.11/arch/powerpc/kernel/head_8xx.S 2013-09-09 11:28:54.000000000 +0200 @@ -862,6 +862,9 @@ addis r11, r11, 0x0080 /* Add 8M */ mtspr SPRN_MD_RPN, r11 + addi r10, r10, 0x0100 + mtspr SPRN_MD_CTR, r10 + addis r8, r8, 0x0080 /* Add 8M */ mtspr SPRN_MD_EPN, r8 mtspr SPRN_MD_TWC, r9 -- 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/
Powered by blists - more mailing lists