From: Borislav Petkov <bp@alien8.de> To: Ingo Molnar <mingo@kernel.org> Cc: X86-ML <x86@kernel.org>, LKML <linux-kernel@vger.kernel.org> Subject: [PATCH 02/18] x86/mtrr: Fix MTRR lookup to handle an inclusive entry Date: Tue, 26 May 2015 10:28:05 +0200 Message-ID: <1432628901-18044-3-git-send-email-bp@alien8.de> (raw) In-Reply-To: <1432628901-18044-1-git-send-email-bp@alien8.de> From: Toshi Kani <toshi.kani@hp.com> When an MTRR entry is inclusive to a requested range, i.e. the start and end of the request are not within the MTRR entry range but the range contains the MTRR entry entirely: range_start ... [mtrr_start ... mtrr_end] ... range_end __mtrr_type_lookup() ignores such a case because both start_state and end_state are set to zero. This bug can cause the following issues: 1) reserve_memtype() tracks an effective memory type in case a request type is WB (ex. /dev/mem blindly uses WB). Missing to track with its effective type causes a subsequent request to map the same range with the effective type to fail. 2) pud_set_huge() and pmd_set_huge() check if a requested range has any overlap with MTRRs. Missing to detect an overlap may cause a performance penalty or undefined behavior. This patch fixes the bug by adding a new flag, 'inclusive', to detect the inclusive case. This case is then handled in the same way as end_state:1 since the first region is the same. With this fix, __mtrr_type_lookup() handles the inclusive case properly. Signed-off-by: Toshi Kani <toshi.kani@hp.com> Cc: dave.hansen@intel.com Cc: Elliott@hp.com Cc: pebolle@tiscali.nl Cc: Luis R. Rodriguez <mcgrof@suse.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: linux-mm <linux-mm@kvack.org> Cc: x86-ml <x86@kernel.org> Cc: lkml <linux-kernel@vger.kernel.org> Link: http://lkml.kernel.org/r/1431714237-880-3-git-send-email-toshi.kani@hp.com Signed-off-by: Borislav Petkov <bp@suse.de> --- arch/x86/kernel/cpu/mtrr/generic.c | 28 ++++++++++++++++++---------- 1 file changed, 18 insertions(+), 10 deletions(-) diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c index 5b239679cfc9..e202d26f64a2 100644 --- a/arch/x86/kernel/cpu/mtrr/generic.c +++ b/arch/x86/kernel/cpu/mtrr/generic.c @@ -154,7 +154,7 @@ static u8 __mtrr_type_lookup(u64 start, u64 end, u64 *partial_end, int *repeat) prev_match = 0xFF; for (i = 0; i < num_var_ranges; ++i) { - unsigned short start_state, end_state; + unsigned short start_state, end_state, inclusive; if (!(mtrr_state.var_ranges[i].mask_lo & (1 << 11))) continue; @@ -166,19 +166,27 @@ static u8 __mtrr_type_lookup(u64 start, u64 end, u64 *partial_end, int *repeat) start_state = ((start & mask) == (base & mask)); end_state = ((end & mask) == (base & mask)); + inclusive = ((start < base) && (end > base)); - if (start_state != end_state) { + if ((start_state != end_state) || inclusive) { /* * We have start:end spanning across an MTRR. - * We split the region into - * either - * (start:mtrr_end) (mtrr_end:end) - * or - * (start:mtrr_start) (mtrr_start:end) + * We split the region into either + * + * - start_state:1 + * (start:mtrr_end)(mtrr_end:end) + * - end_state:1 + * (start:mtrr_start)(mtrr_start:end) + * - inclusive:1 + * (start:mtrr_start)(mtrr_start:mtrr_end)(mtrr_end:end) + * * depending on kind of overlap. - * Return the type for first region and a pointer to - * the start of second region so that caller will - * lookup again on the second region. + * + * Return the type of the first region and a pointer + * to the start of next region so that caller will be + * advised to lookup again after having adjusted start + * and end. + * * Note: This way we handle multiple overlaps as well. */ if (start_state) -- 1.9.0.258.g00eda23
next prev parent reply index Thread overview: 400+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-05-26 8:28 [PATCH 00/18] tip queue 2015-05-26 Borislav Petkov 2015-05-26 8:28 ` [PATCH 01/18] x86/kconfig: Simplify conditions for HAVE_ARCH_HUGE_VMAP Borislav Petkov 2015-05-27 14:17 ` [tip:x86/mm] x86/mm/kconfig: " tip-bot for Toshi Kani 2015-05-26 8:28 ` Borislav Petkov [this message] 2015-05-27 14:18 ` [tip:x86/mm] x86/mm/mtrr: Fix MTRR lookup to handle an inclusive entry tip-bot for Toshi Kani 2015-05-26 8:28 ` [PATCH 03/18] x86/mtrr: Fix MTRR state checks in mtrr_type_lookup() Borislav Petkov 2015-05-27 14:18 ` [tip:x86/mm] x86/mm/mtrr: " tip-bot for Toshi Kani 2015-05-26 8:28 ` [PATCH 04/18] x86/mtrr: Use symbolic define as a retval for disabled MTRRs Borislav Petkov 2015-05-27 14:18 ` [tip:x86/mm] x86/mm/mtrr: " tip-bot for Toshi Kani 2015-05-26 8:28 ` [PATCH 05/18] x86/mtrr: Clean up mtrr_type_lookup() Borislav Petkov 2015-05-27 14:19 ` [tip:x86/mm] x86/mm/mtrr: " tip-bot for Toshi Kani 2015-07-31 13:18 ` Peter Zijlstra 2015-07-31 14:44 ` Borislav Petkov 2015-07-31 15:08 ` Peter Zijlstra 2015-07-31 15:27 ` Borislav Petkov 2015-08-01 14:28 ` Luis R. Rodriguez 2015-08-01 16:33 ` Borislav Petkov 2015-08-01 16:39 ` Linus Torvalds 2015-08-01 16:49 ` Borislav Petkov 2015-08-01 17:03 ` Linus Torvalds 2015-05-26 8:28 ` [PATCH 06/18] x86/process: Drop repeated word from comment Borislav Petkov 2015-05-27 14:16 ` [tip:sched/core] sched/x86: Drop repeated word from mwait_idle() comment tip-bot for Huang Rui 2015-05-26 8:28 ` [PATCH 07/18] x86/mm: Enhance MTRR checks in kernel mapping helpers Borislav Petkov 2015-05-27 14:19 ` [tip:x86/mm] x86/mm/mtrr: " tip-bot for Toshi Kani 2015-05-26 8:28 ` [PATCH 08/18] x86/mm/pat: Convert to pr_* usage Borislav Petkov 2015-05-27 14:19 ` [tip:x86/mm] x86/mm/pat: Convert to pr_*() usage tip-bot for Luis R. Rodriguez 2015-05-26 8:28 ` [PATCH 09/18] x86: Document Write Combining MTRR type effects on PAT / non-PAT pages Borislav Petkov 2015-05-27 14:19 ` [tip:x86/mm] x86/mm/mtrr, pat: " tip-bot for Luis R. Rodriguez 2015-05-26 8:28 ` [PATCH 10/18] x86/mtrr: Avoid ifdeffery with phys_wc_to_mtrr_index() Borislav Petkov 2015-05-27 14:20 ` [tip:x86/mm] x86/mm/mtrr: Avoid #ifdeffery " tip-bot for Luis R. Rodriguez 2015-05-26 8:28 ` [PATCH 11/18] x86/mtrr: Generalize runtime disabling of MTRRs Borislav Petkov 2015-05-27 14:20 ` [tip:x86/mm] x86/mm/mtrr: " tip-bot for Luis R. Rodriguez 2015-05-26 8:28 ` [PATCH 12/18] x86/mm/pat: Wrap pat_enabled Borislav Petkov 2015-05-27 14:20 ` [tip:x86/mm] x86/mm/pat: Wrap pat_enabled into a function API tip-bot for Luis R. Rodriguez 2015-05-26 8:28 ` [PATCH 13/18] x86/mm/pat: Export pat_enabled() Borislav Petkov 2015-05-27 14:21 ` [tip:x86/mm] " tip-bot for Luis R. Rodriguez 2015-05-26 8:28 ` [PATCH 14/18] x86/cpu: Strip any /proc/cpuinfo model name field whitespace Borislav Petkov 2015-05-27 14:16 ` [tip:x86/cpu] x86/cpu: Strip any /proc/ cpuinfo " tip-bot for Prarit Bhargava 2015-05-27 17:07 ` Joe Perches 2015-05-27 19:06 ` Borislav Petkov 2015-05-27 19:16 ` Joe Perches 2015-05-28 11:27 ` Prarit Bhargava 2015-05-28 11:32 ` Borislav Petkov 2015-05-28 12:58 ` Borislav Petkov 2015-05-28 16:57 ` H. Peter Anvin 2015-05-28 18:33 ` Borislav Petkov 2015-05-28 20:39 ` H. Peter Anvin 2015-05-26 8:28 ` [PATCH 15/18] x86/documentation: Move kernel-stacks doc one level up Borislav Petkov 2015-05-27 14:17 ` [tip:x86/debug] x86/Documentation: " tip-bot for Borislav Petkov 2015-05-26 8:28 ` [PATCH 16/18] x86/documentation: Remove STACKFAULT_STACK bulletpoint Borislav Petkov 2015-05-27 14:17 ` [tip:x86/debug] x86/Documentation: " tip-bot for Borislav Petkov 2015-05-26 8:28 ` [PATCH 17/18] x86/documentation: Adapt Ingo's explanation on printing backtraces Borislav Petkov 2015-05-26 8:28 ` [PATCH 18/18] x86/mce: Fix monarch timeout setting through the mce= cmdline option Borislav Petkov 2015-06-07 17:39 ` [tip:x86/core] " tip-bot for Xie XiuQi -- strict thread matches above, loose matches on Subject: below -- 2015-05-20 11:22 [PATCH] mce: fix fail to set 'monarchtimeout' via boot option Xie XiuQi 2015-05-20 17:43 ` Borislav Petkov 2015-05-21 1:00 ` Xie XiuQi 2015-05-19 15:43 [PATCH] x86, cpuinfo x86_model_id whitespace cleanup Prarit Bhargava 2015-05-19 16:56 ` Borislav Petkov 2015-05-19 17:25 ` Brian Gerst 2015-05-19 18:13 ` Borislav Petkov 2015-05-19 18:44 ` Andy Lutomirski 2015-05-19 19:22 ` Borislav Petkov 2015-05-19 20:16 ` Andy Lutomirski 2015-05-19 20:26 ` Joe Perches 2015-05-19 20:28 ` Joe Perches 2015-05-19 20:31 ` Borislav Petkov 2015-05-19 22:17 ` Prarit Bhargava 2015-05-27 17:18 ` H. Peter Anvin 2015-05-20 6:34 ` Ingo Molnar 2015-05-20 10:15 ` Prarit Bhargava 2015-06-02 8:42 ` [tip:x86/cpu] x86/cpu: Trim model ID whitespace tip-bot for Borislav Petkov 2015-05-19 8:01 [RFC PATCH 0/4] x86, mwaitt: introduce AMD mwaitt support Huang Rui 2015-05-19 8:01 ` [RFC PATCH 1/4] x86, mwaitt: add monitorx and mwaitx instruction Huang Rui 2015-05-19 11:29 ` Borislav Petkov 2015-05-21 8:54 ` Huang Rui 2015-05-21 9:35 ` Borislav Petkov 2015-05-19 8:01 ` [RFC PATCH 2/4] x86, mwaitt: introduce mwaitx idle with a configurable timer Huang Rui 2015-05-19 11:31 ` Borislav Petkov 2015-05-20 8:55 ` Ingo Molnar 2015-05-20 9:12 ` Borislav Petkov 2015-05-20 10:22 ` Ingo Molnar 2015-05-20 10:50 ` Borislav Petkov 2015-05-20 11:11 ` Ingo Molnar 2015-05-20 11:21 ` Borislav Petkov 2015-05-20 11:41 ` Ingo Molnar 2015-05-20 13:20 ` Thomas Gleixner 2015-05-20 14:51 ` Ingo Molnar 2015-05-20 15:55 ` One Thousand Gnomes 2015-05-20 16:07 ` Borislav Petkov 2015-05-20 19:12 ` Thomas Gleixner 2015-05-20 20:15 ` Borislav Petkov 2015-05-21 14:56 ` Huang Rui 2015-05-21 16:02 ` Borislav Petkov 2015-05-21 16:45 ` Andy Lutomirski 2015-05-21 17:08 ` Borislav Petkov 2015-05-21 17:12 ` Andy Lutomirski 2015-05-21 19:30 ` Thomas Gleixner 2015-05-21 14:32 ` Huang Rui 2015-05-25 2:42 ` Huang Rui 2015-05-25 10:43 ` Ingo Molnar 2015-05-21 14:15 ` Huang Rui 2015-05-21 13:26 ` Huang Rui 2015-05-21 1:34 ` Andy Lutomirski 2015-05-21 5:48 ` Andy Lutomirski 2015-05-27 1:01 ` Andy Lutomirski 2015-05-27 11:30 ` Borislav Petkov 2015-05-21 9:41 ` Thomas Gleixner 2015-05-19 8:01 ` [RFC PATCH 3/4] x86, mwaitt: add document to describe mwaitx Huang Rui 2015-05-19 8:01 ` [RFC PATCH 4/4] x86, mwait: fix redundant comment Huang Rui 2015-05-19 9:40 ` Borislav Petkov 2015-05-19 8:57 ` [RFC PATCH 0/4] x86, mwaitt: introduce AMD mwaitt support Borislav Petkov 2015-05-19 9:44 ` Huang Rui 2015-05-18 16:34 [PATCH v4 0/3] Compile-time stack frame pointer validation Josh Poimboeuf 2015-05-18 16:34 ` [PATCH v4 1/3] x86, stackvalidate: " Josh Poimboeuf 2015-05-18 16:34 ` [PATCH v4 2/3] x86: Make push/pop CFI macros arch-independent Josh Poimboeuf 2015-05-18 16:34 ` [PATCH v4 3/3] x86, stackvalidate: Add asm frame pointer setup macros Josh Poimboeuf 2015-05-20 10:33 ` [PATCH v4 0/3] Compile-time stack frame pointer validation Ingo Molnar 2015-05-20 14:13 ` Josh Poimboeuf 2015-05-20 14:48 ` Ingo Molnar 2015-05-20 15:51 ` Josh Poimboeuf 2015-05-20 16:09 ` Josh Poimboeuf 2015-05-20 16:03 ` Andy Lutomirski 2015-05-20 16:25 ` Josh Poimboeuf 2015-05-20 16:39 ` Andy Lutomirski 2015-05-20 16:52 ` Borislav Petkov 2015-05-21 10:16 ` Ingo Molnar 2015-05-21 10:47 ` Borislav Petkov 2015-05-21 11:11 ` Ingo Molnar 2015-05-21 15:49 ` [PATCH 1/3] x86/documentation: Move kernel-stacks doc one level up Borislav Petkov 2015-05-21 15:49 ` [PATCH 2/3] x86/documentation: Remove STACKFAULT_STACK bulletpoint Borislav Petkov 2015-05-21 15:49 ` [PATCH 3/3] x86/documentation: Adapt Ingo's explanation on printing backtraces Borislav Petkov 2015-05-27 14:17 ` [tip:x86/debug] x86/Documentation: Adapt Ingo' s " tip-bot for Borislav Petkov 2015-05-20 16:59 ` [PATCH v4 0/3] Compile-time stack frame pointer validation Linus Torvalds 2015-05-20 17:20 ` Josh Poimboeuf 2015-05-21 10:27 ` Ingo Molnar 2015-05-21 7:52 ` Ingo Molnar 2015-05-21 12:12 ` Ingo Molnar 2015-05-26 23:06 ` Andi Kleen 2015-05-20 17:27 ` Peter Zijlstra 2015-05-20 19:10 ` Jiri Kosina 2015-05-21 20:54 ` Josh Poimboeuf 2015-05-21 21:53 ` Andy Lutomirski 2015-05-22 14:53 ` Josh Poimboeuf 2015-05-21 22:01 ` Borislav Petkov 2015-05-22 14:32 ` Josh Poimboeuf 2015-05-22 21:18 ` Jiri Kosina 2015-05-22 22:22 ` Josh Poimboeuf 2015-05-23 8:37 ` Borislav Petkov 2015-05-15 18:23 [PATCH v5 0/6] mtrr, mm, x86: Enhance MTRR checks for huge I/O mapping Toshi Kani 2015-05-15 18:23 ` [PATCH v5 1/6] mm, x86: Simplify conditions of HAVE_ARCH_HUGE_VMAP Toshi Kani 2015-05-17 8:30 ` Borislav Petkov 2015-05-15 18:23 ` [PATCH v5 2/6] mtrr, x86: Fix MTRR lookup to handle inclusive entry Toshi Kani 2015-05-15 18:23 ` [PATCH v5 3/6] mtrr, x86: Fix MTRR state checks in mtrr_type_lookup() Toshi Kani 2015-05-15 18:23 ` [PATCH v5 4/6] mtrr, x86: Define MTRR_TYPE_INVALID for mtrr_type_lookup() Toshi Kani 2015-05-15 18:23 ` [PATCH v5 5/6] mtrr, x86: Clean up mtrr_type_lookup() Toshi Kani 2015-05-15 18:23 ` [PATCH v5 6/6] mtrr, mm, x86: Enhance MTRR checks for KVA huge page mapping Toshi Kani 2015-05-18 13:33 ` Borislav Petkov 2015-05-18 17:22 ` Toshi Kani 2015-05-18 19:01 ` Borislav Petkov 2015-05-18 19:31 ` Toshi Kani 2015-05-18 20:01 ` Borislav Petkov 2015-05-18 20:21 ` Toshi Kani 2015-05-18 20:51 ` Borislav Petkov 2015-05-18 21:53 ` Toshi Kani 2015-05-19 11:44 ` Borislav Petkov 2015-05-19 13:23 ` Borislav Petkov 2015-05-19 13:47 ` Toshi Kani 2015-05-20 11:55 ` Ingo Molnar 2015-05-20 14:34 ` Toshi Kani 2015-05-20 15:01 ` Ingo Molnar 2015-05-20 15:02 ` Toshi Kani 2015-05-20 16:04 ` Borislav Petkov 2015-05-20 15:46 ` Toshi Kani 2015-05-11 8:15 [0/8] tip queue 2015-05-11 Borislav Petkov 2015-05-11 8:15 ` [PATCH] x86/alternatives: Switch AMD F15h and later to the P6 NOPs Borislav Petkov 2015-05-11 12:44 ` [tip:x86/asm] " tip-bot for Borislav Petkov 2015-05-11 8:15 ` [PATCH] x86/cpu/microcode: Zap changelog Borislav Petkov 2015-05-11 12:45 ` [tip:x86/microcode] " tip-bot for Borislav Petkov 2015-05-11 8:15 ` [PATCH] x86/kaslr: Fix typo in KASLR_FLAG documentation Borislav Petkov 2015-05-11 12:45 ` [tip:x86/boot] x86/kaslr: Fix typo in the " tip-bot for Miroslav Benes 2015-05-11 8:15 ` [PATCH 1/5] x86/mm: Do not flush last cacheline twice in clflush_cache_range() Borislav Petkov 2015-05-11 12:45 ` [tip:x86/mm] " tip-bot for Ross Zwisler 2015-05-11 8:15 ` [PATCH] x86/vdso: Add arch/x86/include/uapi include path to HOST_EXTRACFLAGS Borislav Petkov 2015-05-11 8:15 ` [PATCH 2/5] x86/mm: Add kerneldoc comments for pcommit_sfence() Borislav Petkov 2015-05-11 12:45 ` [tip:x86/mm] " tip-bot for Ross Zwisler 2015-05-11 8:15 ` [PATCH 3/5] x86/MTRR: Remove wrong address check in __mtrr_type_lookup() Borislav Petkov 2015-05-11 12:46 ` [tip:x86/mm] x86/mm/mtrr: Remove incorrect " tip-bot for Toshi Kani 2015-05-11 8:15 ` [PATCH 4/5] x86/mm: Add ioremap_uc() helper to map memory uncacheable (not UC-) Borislav Petkov 2015-05-11 12:46 ` [tip:x86/mm] " tip-bot for Luis R. Rodriguez 2015-05-06 16:54 tools: Consolidate types.h Oleg Nesterov 2015-05-06 17:17 ` Borislav Petkov 2015-05-06 17:30 ` Oleg Nesterov 2015-05-06 17:37 ` Borislav Petkov 2015-05-07 2:53 ` Andy Lutomirski 2015-05-07 16:58 ` [PATCH 0/1] x86/vdso: add -Iarch/x86/include/uapi into HOST_EXTRACFLAGS Oleg Nesterov 2015-05-07 16:58 ` [PATCH 1/1] " Oleg Nesterov 2015-05-07 19:46 ` Andy Lutomirski 2015-05-07 21:55 ` Borislav Petkov 2015-05-11 12:44 ` [tip:x86/urgent] x86/vdso: Fix 'make bzImage' on older distros tip-bot for Oleg Nesterov 2015-04-30 20:25 [PATCH v5 0/6] x86: address drivers that do not work with PAT Luis R. Rodriguez 2015-04-30 20:25 ` [PATCH v5 1/6] x86/mm/pat: use pr_info() and friends Luis R. Rodriguez 2015-05-04 14:58 ` Borislav Petkov 2015-05-07 3:36 ` Elliott, Robert (Server Storage) 2015-05-14 15:55 ` Luis R. Rodriguez 2015-04-30 20:25 ` [PATCH v5 2/6] x86/mm/pat: redefine pat_enabled Luis R. Rodriguez 2015-05-04 15:22 ` Borislav Petkov 2015-05-05 0:42 ` Luis R. Rodriguez 2015-04-30 20:25 ` [PATCH v5 3/6] arch/x86/mm/pat: export pat_enabled() Luis R. Rodriguez 2015-05-04 15:29 ` Borislav Petkov 2015-04-30 20:25 ` [PATCH v5 4/6] ivtv: use arch_phys_wc_add() and require PAT disabled Luis R. Rodriguez 2015-04-30 20:25 ` [PATCH v5 5/6] IB/ipath: add counting for MTRR Luis R. Rodriguez 2015-04-30 20:25 ` [PATCH v5 6/6] IB/ipath: use arch_phys_wc_add() and require PAT disabled Luis R. Rodriguez 2015-04-29 21:44 [PATCH v4 0/6] x86: document and address MTRR corner cases Luis R. Rodriguez 2015-04-29 21:44 ` [PATCH v4 1/6] x86: add ioremap_uc() - force strong UC, PCD=1, PWT=1 Luis R. Rodriguez 2015-04-30 10:18 ` Borislav Petkov 2015-04-29 21:44 ` [PATCH v4 2/6] x86: document WC MTRR effects on PAT / non-PAT pages Luis R. Rodriguez 2015-04-30 22:01 ` Randy Dunlap 2015-05-05 0:45 ` Luis R. Rodriguez 2015-05-05 7:22 ` Borislav Petkov 2015-05-05 7:46 ` Luis R. Rodriguez 2015-05-05 7:53 ` Borislav Petkov 2015-05-05 7:31 ` Luis R. Rodriguez 2015-05-04 12:23 ` Borislav Petkov 2015-05-05 7:35 ` Luis R. Rodriguez 2015-04-29 21:44 ` [PATCH v4 3/6] video: fbdev: atyfb: move framebuffer length fudging to helper Luis R. Rodriguez 2015-04-29 21:44 ` [PATCH v4 4/6] video: fbdev: atyfb: clarify ioremap() base and length used Luis R. Rodriguez 2015-04-29 21:44 ` [PATCH v4 5/6] video: fbdev: atyfb: replace MTRR UC hole with strong UC Luis R. Rodriguez 2015-04-29 21:44 ` [PATCH v4 6/6] video: fbdev: atyfb: use arch_phys_wc_add() and ioremap_wc() Luis R. Rodriguez 2015-05-20 19:53 ` Luis R. Rodriguez 2015-05-20 20:57 ` Luis R. Rodriguez 2015-06-03 23:50 ` [PATCH v4 0/6] x86: document and address MTRR corner cases Luis R. Rodriguez 2015-06-08 23:43 ` Luis R. Rodriguez 2015-06-16 19:31 ` Luis R. Rodriguez 2015-06-19 22:22 ` Luis R. Rodriguez 2015-06-25 1:24 ` Luis R. Rodriguez 2015-06-25 6:59 ` Ingo Molnar 2015-06-25 16:41 ` Luis R. Rodriguez 2015-04-28 22:46 [PATCH v2] x86: Add kerneldoc for pcommit_sfence() Ross Zwisler 2015-04-29 14:23 ` Borislav Petkov 2015-04-28 22:13 [PATCH] x86: improve algorithm in clflush_cache_range Ross Zwisler 2015-04-29 10:28 ` Borislav Petkov 2015-04-22 17:12 [PATCH v4] mtrr: avoid ifdef'ery with phys_wc_to_mtrr_index() Luis R. Rodriguez 2015-04-14 11:35 [PATCH] x86/kaslr: Fix typo in documentation Miroslav Benes 2015-04-14 11:37 ` Borislav Petkov 2015-03-24 22:08 [PATCH v4 0/7] mtrr, mm, x86: Enhance MTRR checks for huge I/O mapping Toshi Kani 2015-03-24 22:08 ` [PATCH v4 1/7] mm, x86: Document return values of mapping funcs Toshi Kani 2015-05-05 11:19 ` Borislav Petkov 2015-05-05 13:46 ` Toshi Kani 2015-05-05 14:19 ` Borislav Petkov 2015-05-05 14:14 ` Toshi Kani 2015-03-24 22:08 ` [PATCH v4 2/7] mtrr, x86: Fix MTRR lookup to handle inclusive entry Toshi Kani 2015-05-05 17:11 ` Borislav Petkov 2015-05-05 17:32 ` Toshi Kani 2015-05-05 18:39 ` Borislav Petkov 2015-05-05 19:31 ` Toshi Kani 2015-05-05 20:09 ` Borislav Petkov 2015-05-05 20:06 ` Toshi Kani 2015-03-24 22:08 ` [PATCH v4 3/7] mtrr, x86: Remove a wrong address check in __mtrr_type_lookup() Toshi Kani 2015-05-06 10:46 ` Borislav Petkov 2015-03-24 22:08 ` [PATCH v4 4/7] mtrr, x86: Fix MTRR state checks in mtrr_type_lookup() Toshi Kani 2015-05-06 11:47 ` Borislav Petkov 2015-05-06 15:23 ` Toshi Kani 2015-05-06 22:39 ` Borislav Petkov 2015-05-06 23:08 ` Toshi Kani 2015-03-24 22:08 ` [PATCH v4 5/7] mtrr, x86: Define MTRR_TYPE_INVALID for mtrr_type_lookup() Toshi Kani 2015-03-24 22:08 ` [PATCH v4 6/7] mtrr, x86: Clean up mtrr_type_lookup() Toshi Kani 2015-05-06 13:41 ` Borislav Petkov 2015-05-06 16:00 ` Toshi Kani 2015-05-06 22:49 ` Borislav Petkov 2015-05-06 23:42 ` Toshi Kani 2015-05-07 7:52 ` Borislav Petkov 2015-05-07 13:45 ` Toshi Kani 2015-03-24 22:08 ` [PATCH v4 7/7] mtrr, mm, x86: Enhance MTRR checks for KVA huge page mapping Toshi Kani 2015-05-09 9:08 ` Borislav Petkov 2015-05-11 19:25 ` Toshi Kani 2015-05-11 20:18 ` Borislav Petkov 2015-05-11 20:38 ` Toshi Kani 2015-05-11 21:42 ` Borislav Petkov 2015-05-11 22:09 ` Toshi Kani 2015-05-12 7:28 ` Borislav Petkov 2015-05-12 14:30 ` Toshi Kani 2015-05-12 16:31 ` Borislav Petkov 2015-05-12 16:57 ` Toshi Kani 2015-03-24 22:43 ` [PATCH v4 0/7] mtrr, mm, x86: Enhance MTRR checks for huge I/O mapping Andrew Morton 2015-04-03 6:33 ` Ingo Molnar 2015-04-03 15:22 ` Toshi Kani 2015-04-27 14:31 ` Toshi Kani 2015-03-20 23:17 [PATCH v1 00/47] mtrr/x86/drivers: bury MTRR Luis R. Rodriguez 2015-03-20 23:17 ` [PATCH v1 01/47] x86: mtrr: annotate mtrr_type_lookup() is only implemented on generic_mtrr_ops Luis R. Rodriguez 2015-03-20 23:17 ` [PATCH v1 02/47] x86: mtrr: generalize run time disabling of MTRR Luis R. Rodriguez 2015-03-25 19:59 ` Konrad Rzeszutek Wilk 2015-03-26 4:38 ` Juergen Gross 2015-03-26 23:35 ` Luis R. Rodriguez 2015-04-02 20:13 ` Bjorn Helgaas 2015-04-02 20:20 ` Luis R. Rodriguez 2015-04-02 20:28 ` Bjorn Helgaas 2015-04-02 21:02 ` Luis R. Rodriguez 2015-04-02 22:09 ` Bjorn Helgaas 2015-04-02 22:12 ` [Xen-devel] " Luis R. Rodriguez 2015-03-27 20:40 ` Toshi Kani 2015-03-27 23:56 ` Luis R. Rodriguez 2015-04-02 21:49 ` Luis R. Rodriguez 2015-04-02 23:52 ` Toshi Kani 2015-04-03 1:08 ` Luis R. Rodriguez 2015-03-20 23:17 ` [PATCH v1 03/47] devres: add devm_ioremap_wc() Luis R. Rodriguez 2015-03-20 23:49 ` Andy Lutomirski 2015-03-25 19:50 ` Luis R. Rodriguez 2015-03-20 23:17 ` [PATCH v1 04/47] pci: add pci_ioremap_wc_bar() Luis R. Rodriguez 2015-03-20 23:50 ` Andy Lutomirski 2015-03-25 20:06 ` Luis R. Rodriguez 2015-03-25 20:03 ` [Xen-devel] " Konrad Rzeszutek Wilk 2015-03-25 20:39 ` Luis R. Rodriguez 2015-03-20 23:17 ` [PATCH v1 05/47] pci: add pci_iomap_wc() variants Luis R. Rodriguez 2015-03-23 17:20 ` Bjorn Helgaas 2015-03-26 3:00 ` Luis R. Rodriguez 2015-04-21 17:52 ` Luis R. Rodriguez 2015-04-21 18:46 ` Michael S. Tsirkin 2015-03-27 19:18 ` Toshi Kani 2015-04-21 19:25 ` Michael S. Tsirkin 2015-04-21 19:27 ` Luis R. Rodriguez 2015-03-25 20:07 ` Konrad Rzeszutek Wilk 2015-03-27 18:40 ` Luis R. Rodriguez 2015-03-20 23:17 ` [PATCH v1 06/47] mtrr: add __arch_phys_wc_add() Luis R. Rodriguez 2015-03-20 23:48 ` Andy Lutomirski 2015-03-27 19:53 ` Luis R. Rodriguez 2015-03-27 19:58 ` Andy Lutomirski 2015-03-27 20:30 ` Luis R. Rodriguez 2015-03-27 21:23 ` Andy Lutomirski 2015-03-27 23:04 ` Luis R. Rodriguez 2015-03-27 23:10 ` Andy Lutomirski 2015-03-27 23:33 ` Luis R. Rodriguez 2015-04-02 20:21 ` Bjorn Helgaas 2015-04-02 20:55 ` Luis R. Rodriguez 2015-04-02 22:35 ` Bjorn Helgaas 2015-04-02 22:54 ` Luis R. Rodriguez 2015-03-20 23:17 ` [PATCH v1 07/47] video: fbdev: atyfb: move framebuffer length fudging to helper Luis R. Rodriguez 2015-03-20 23:17 ` [PATCH v1 08/47] video: fbdev: atyfb: clarify ioremap() base and length used Luis R. Rodriguez 2015-03-20 23:17 ` [PATCH v1 09/47] vidoe: fbdev: atyfb: remove and fix MTRR MMIO "hole" work around Luis R. Rodriguez 2015-03-20 23:52 ` Andy Lutomirski 2015-03-27 20:12 ` Luis R. Rodriguez 2015-03-27 21:21 ` Andy Lutomirski 2015-03-27 23:31 ` Luis R. Rodriguez 2015-03-21 9:15 ` Ville Syrjälä 2015-03-27 8:37 ` Ville Syrjälä 2015-03-27 19:38 ` Luis R. Rodriguez 2015-03-27 19:38 ` Luis R. Rodriguez 2015-03-27 19:43 ` Andy Lutomirski 2015-03-27 19:57 ` Luis R. Rodriguez 2015-03-27 21:56 ` Ville Syrjälä 2015-03-27 22:02 ` Andy Lutomirski 2015-03-28 0:28 ` Luis R. Rodriguez 2015-03-28 12:23 ` Ville Syrjälä 2015-04-01 23:52 ` Luis R. Rodriguez 2015-04-02 0:04 ` Andy Lutomirski 2015-04-02 19:45 ` Luis R. Rodriguez 2015-04-02 19:50 ` Andy Lutomirski 2015-03-28 0:21 ` Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 10/47] video: fbdev: atyfb: use arch_phys_wc_add() and ioremap_wc() Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 11/47] IB/qib: add acounting for MTRR Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 12/47] IB/qib: use arch_phys_wc_add() Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 13/47] IB/ipath: add counting for MTRR Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 14/47] IB/ipath: use __arch_phys_wc_add() Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 15/47] [media] media: ivtv: " Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 16/47] fusion: " Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 17/47] video: fbdev: vesafb: only support MTRR_TYPE_WRCOMB Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 18/47] vidoe: fbdev: vesafb: add missing mtrr_del() for added MTRR Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 19/47] video: fbdev: vesafb: use arch_phys_wc_add() Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 20/47] mtrr: avoid ifdef'ery with phys_wc_to_mtrr_index() Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 21/47] ethernet: myri10ge: use arch_phys_wc_add() Luis R. Rodriguez 2015-03-21 7:08 ` Hyong-Youb Kim 2015-03-27 20:36 ` Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 22/47] staging: sm750fb: use arch_phys_wc_add() and ioremap_wc() Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 23/47] staging: xgifb: " Luis R. Rodriguez 2015-04-30 17:40 ` Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 24/47] video: fbdev: arkfb: use arch_phys_wc_add() and pci_iomap_wc() Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 25/47] video: fbdev: radeonfb: use arch_phys_wc_add() and ioremap_wc() Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 26/47] video: fbdev: gbefb: add missing mtrr_del() calls Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 27/47] video: fbdev: gbefb: use arch_phys_wc_add() and devm_ioremap_wc() Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 28/47] video: fbdev: intelfb: use arch_phys_wc_add() and ioremap_wc() Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 29/47] video: fbdev: matrox: " Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 30/47] video: fbdev: neofb: " Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 31/47] video: fbdev: s3fb: use arch_phys_wc_add() and pci_iomap_wc() Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 32/47] video: fbdev: nvidia: use arch_phys_wc_add() and ioremap_wc() Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 33/47] video: fbdev: savagefb: " Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 34/47] video: fbdev: sisfb: " Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 35/47] video: fbdev: aty: " Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 36/47] video: fbdev: i810: " Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 37/47] video: fbdev: i740fb: use arch_phys_wc_add() and pci_ioremap_wc_bar() Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 38/47] video: fbdev: kyrofb: " Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 39/47] video: fbdev: pm2fb: use arch_phys_wc_add() and ioremap_wc() Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 40/47] video: fbdev: pm3fb: " Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 41/47] video: fbdev: rivafb: " Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 42/47] video: fbdev: tdfxfb: " Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 43/47] video: fbdev: vt8623fb: use arch_phys_wc_add() and pci_iomap_wc() Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 44/47] video: fbdev: atmel_lcdfb: use ioremap_wc() for framebuffer Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 45/47] video: fbdev: geode gxfb: " Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 46/47] video: fbdev: gxt4500: use pci_ioremap_wc_bar() " Luis R. Rodriguez 2015-03-20 23:18 ` [PATCH v1 47/47] mtrr: bury MTRR - unexport mtrr_add() and mtrr_del() Luis R. Rodriguez 2015-03-21 1:08 ` [PATCH v1 00/47] mtrr/x86/drivers: bury MTRR Andy Lutomirski
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