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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 05/18] x86/mtrr: Clean up mtrr_type_lookup()
Date: Tue, 26 May 2015 10:28:08 +0200
Message-ID: <1432628901-18044-6-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>

MTRRs contain fixed and variable entries. mtrr_type_lookup() may
repeatedly call __mtrr_type_lookup() to handle a request that overlaps
with variable entries.

However, __mtrr_type_lookup() also handles the fixed entries, which
do not have to be repeated. Therefore, this patch creates separate
functions, mtrr_type_lookup_fixed() and mtrr_type_lookup_variable(), to
handle the fixed and variable ranges respectively.

The patch also updates the function headers to clarify the return values
and output argument. It updates comments to clarify that the repeating
is necessary to handle overlaps with the default type, since overlaps
with multiple entries alone can be handled without such repeating.

There is no functional change in this patch.

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/1431714237-880-6-git-send-email-toshi.kani@hp.com
Signed-off-by: Borislav Petkov <bp@suse.de>
---
 arch/x86/kernel/cpu/mtrr/generic.c | 138 +++++++++++++++++++++++--------------
 1 file changed, 86 insertions(+), 52 deletions(-)

diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index 7b1491c6232d..e51100c49eea 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -102,55 +102,68 @@ static int check_type_overlap(u8 *prev, u8 *curr)
 	return 0;
 }
 
-/*
- * Error/Semi-error returns:
- * MTRR_TYPE_INVALID - when MTRR is not enabled
- * *repeat == 1 implies [start:end] spanned across MTRR range and type returned
- *		corresponds only to [start:*partial_end].
- *		Caller has to lookup again for [*partial_end:end].
+/**
+ * mtrr_type_lookup_fixed - look up memory type in MTRR fixed entries
+ *
+ * Return the MTRR fixed memory type of 'start'.
+ *
+ * MTRR fixed entries are divided into the following ways:
+ *  0x00000 - 0x7FFFF : This range is divided into eight 64KB sub-ranges
+ *  0x80000 - 0xBFFFF : This range is divided into sixteen 16KB sub-ranges
+ *  0xC0000 - 0xFFFFF : This range is divided into sixty-four 4KB sub-ranges
+ *
+ * Return Values:
+ * MTRR_TYPE_(type)  - Matched memory type
+ * MTRR_TYPE_INVALID - Unmatched
+ */
+static u8 mtrr_type_lookup_fixed(u64 start, u64 end)
+{
+	int idx;
+
+	if (start >= 0x100000)
+		return MTRR_TYPE_INVALID;
+
+	/* 0x0 - 0x7FFFF */
+	if (start < 0x80000) {
+		idx = 0;
+		idx += (start >> 16);
+		return mtrr_state.fixed_ranges[idx];
+	/* 0x80000 - 0xBFFFF */
+	} else if (start < 0xC0000) {
+		idx = 1 * 8;
+		idx += ((start - 0x80000) >> 14);
+		return mtrr_state.fixed_ranges[idx];
+	}
+
+	/* 0xC0000 - 0xFFFFF */
+	idx = 3 * 8;
+	idx += ((start - 0xC0000) >> 12);
+	return mtrr_state.fixed_ranges[idx];
+}
+
+/**
+ * mtrr_type_lookup_variable - look up memory type in MTRR variable entries
+ *
+ * Return Value:
+ * MTRR_TYPE_(type) - Matched memory type or default memory type (unmatched)
+ *
+ * Output Argument:
+ * repeat - Set to 1 when [start:end] spanned across MTRR range and type
+ *	    returned corresponds only to [start:*partial_end].  Caller has
+ *	    to lookup again for [*partial_end:end].
  */
-static u8 __mtrr_type_lookup(u64 start, u64 end, u64 *partial_end, int *repeat)
+static u8 mtrr_type_lookup_variable(u64 start, u64 end, u64 *partial_end,
+				    int *repeat)
 {
 	int i;
 	u64 base, mask;
 	u8 prev_match, curr_match;
 
 	*repeat = 0;
-	if (!mtrr_state_set)
-		return MTRR_TYPE_INVALID;
-
-	if (!(mtrr_state.enabled & MTRR_STATE_MTRR_ENABLED))
-		return MTRR_TYPE_INVALID;
 
-	/* Make end inclusive end, instead of exclusive */
+	/* Make end inclusive instead of exclusive */
 	end--;
 
-	/* Look in fixed ranges. Just return the type as per start */
-	if ((start < 0x100000) &&
-	    (mtrr_state.have_fixed) &&
-	    (mtrr_state.enabled & MTRR_STATE_MTRR_FIXED_ENABLED)) {
-		int idx;
-
-		if (start < 0x80000) {
-			idx = 0;
-			idx += (start >> 16);
-			return mtrr_state.fixed_ranges[idx];
-		} else if (start < 0xC0000) {
-			idx = 1 * 8;
-			idx += ((start - 0x80000) >> 14);
-			return mtrr_state.fixed_ranges[idx];
-		} else {
-			idx = 3 * 8;
-			idx += ((start - 0xC0000) >> 12);
-			return mtrr_state.fixed_ranges[idx];
-		}
-	}
-
-	/*
-	 * Look in variable ranges
-	 * Look of multiple ranges matching this address and pick type
-	 * as per MTRR precedence
-	 */
 	prev_match = MTRR_TYPE_INVALID;
 	for (i = 0; i < num_var_ranges; ++i) {
 		unsigned short start_state, end_state, inclusive;
@@ -186,7 +199,8 @@ static u8 __mtrr_type_lookup(u64 start, u64 end, u64 *partial_end, int *repeat)
 			 * advised to lookup again after having adjusted start
 			 * and end.
 			 *
-			 * Note: This way we handle multiple overlaps as well.
+			 * Note: This way we handle overlaps with multiple
+			 * entries and the default type properly.
 			 */
 			if (start_state)
 				*partial_end = base + get_mtrr_size(mask);
@@ -215,21 +229,18 @@ static u8 __mtrr_type_lookup(u64 start, u64 end, u64 *partial_end, int *repeat)
 			return curr_match;
 	}
 
-	if (mtrr_tom2) {
-		if (start >= (1ULL<<32) && (end < mtrr_tom2))
-			return MTRR_TYPE_WRBACK;
-	}
-
 	if (prev_match != MTRR_TYPE_INVALID)
 		return prev_match;
 
 	return mtrr_state.def_type;
 }
 
-/*
- * Returns the effective MTRR type for the region
- * Error return:
- * MTRR_TYPE_INVALID - when MTRR is not enabled
+/**
+ * mtrr_type_lookup - look up memory type in MTRR
+ *
+ * Return Values:
+ * MTRR_TYPE_(type)  - The effective MTRR type for the region
+ * MTRR_TYPE_INVALID - MTRR is disabled
  */
 u8 mtrr_type_lookup(u64 start, u64 end)
 {
@@ -237,22 +248,45 @@ u8 mtrr_type_lookup(u64 start, u64 end)
 	int repeat;
 	u64 partial_end;
 
-	type = __mtrr_type_lookup(start, end, &partial_end, &repeat);
+	if (!mtrr_state_set)
+		return MTRR_TYPE_INVALID;
+
+	if (!(mtrr_state.enabled & MTRR_STATE_MTRR_ENABLED))
+		return MTRR_TYPE_INVALID;
+
+	/*
+	 * Look up the fixed ranges first, which take priority over
+	 * the variable ranges.
+	 */
+	if ((start < 0x100000) &&
+	    (mtrr_state.have_fixed) &&
+	    (mtrr_state.enabled & MTRR_STATE_MTRR_FIXED_ENABLED))
+		return mtrr_type_lookup_fixed(start, end);
+
+	/*
+	 * Look up the variable ranges.  Look of multiple ranges matching
+	 * this address and pick type as per MTRR precedence.
+	 */
+	type = mtrr_type_lookup_variable(start, end, &partial_end, &repeat);
 
 	/*
 	 * Common path is with repeat = 0.
 	 * However, we can have cases where [start:end] spans across some
-	 * MTRR range. Do repeated lookups for that case here.
+	 * MTRR ranges and/or the default type.  Do repeated lookups for
+	 * that case here.
 	 */
 	while (repeat) {
 		prev_type = type;
 		start = partial_end;
-		type = __mtrr_type_lookup(start, end, &partial_end, &repeat);
+		type = mtrr_type_lookup_variable(start, end, &partial_end, &repeat);
 
 		if (check_type_overlap(&prev_type, &type))
 			return type;
 	}
 
+	if (mtrr_tom2 && (start >= (1ULL<<32)) && (end < mtrr_tom2))
+		return MTRR_TYPE_WRBACK;
+
 	return type;
 }
 
-- 
1.9.0.258.g00eda23


  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 ` [PATCH 02/18] x86/mtrr: Fix MTRR lookup to handle an inclusive entry Borislav Petkov
2015-05-27 14:18   ` [tip:x86/mm] x86/mm/mtrr: " 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 ` Borislav Petkov [this message]
2015-05-27 14:19   ` [tip:x86/mm] x86/mm/mtrr: Clean up mtrr_type_lookup() 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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