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
| ||
|
Date: Thu, 7 Feb 2008 20:02:41 +0100 From: Andi Kleen <andi@...stfloor.org> To: mingo@...e.hu, davej@...emonkey.org.uk, tglx@...utronix.de, linux-kernel@...r.kernel.org Subject: [PATCH] Use global TLB flushes in MTRR code [probably stable material too] Use global TLB flushes in MTRR code Obviously kernel mappings should be flushed here too. Signed-off-by: Andi Kleen <ak@...e.de> --- arch/x86/kernel/cpu/mtrr/generic.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) Index: linux/arch/x86/kernel/cpu/mtrr/generic.c =================================================================== --- linux.orig/arch/x86/kernel/cpu/mtrr/generic.c +++ linux/arch/x86/kernel/cpu/mtrr/generic.c @@ -356,7 +356,7 @@ static void prepare_set(void) __acquires } /* Flush all TLBs via a mov %cr3, %reg; mov %reg, %cr3 */ - __flush_tlb(); + __flush_tlb_all(); /* Save MTRR state */ rdmsr(MTRRdefType_MSR, deftype_lo, deftype_hi); @@ -368,7 +368,7 @@ static void prepare_set(void) __acquires static void post_set(void) __releases(set_atomicity_lock) { /* Flush TLBs (no need to flush caches - they are disabled) */ - __flush_tlb(); + __flush_tlb_all(); /* Intel (P6) standard MTRRs */ mtrr_wrmsr(MTRRdefType_MSR, deftype_lo, deftype_hi); -- 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