From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Adrian Hunter <adrian.hunter@intel.com>,
David Ahern <dsahern@gmail.com>, Jiri Olsa <jolsa@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Wang Nan <wangnan0@huawei.com>
Subject: [PATCH 27/27] tools headers: Synchronize kernel <-> tooling headers
Date: Wed, 10 Jan 2018 18:28:44 -0300 [thread overview]
Message-ID: <20180110212844.12441-28-acme@kernel.org> (raw)
In-Reply-To: <20180110212844.12441-1-acme@kernel.org>
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Two kernel headers got modified recently due to meltdown/spectre, in:
a89f040fa34e ("x86/cpufeatures: Add X86_BUG_CPU_INSECURE")
which are used by tooling as well:
arch/x86/include/asm/cpufeatures.h
arch/x86/include/asm/disabled-features.h
None of those changes have an effect on tooling, so do a plain copy.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-qqzcs8ri3vks8cypg0puk0ae@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/arch/x86/include/asm/cpufeatures.h | 4 +++-
tools/arch/x86/include/asm/disabled-features.h | 8 +++++++-
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/tools/arch/x86/include/asm/cpufeatures.h b/tools/arch/x86/include/asm/cpufeatures.h
index 800104c8a3ed..21ac898df2d8 100644
--- a/tools/arch/x86/include/asm/cpufeatures.h
+++ b/tools/arch/x86/include/asm/cpufeatures.h
@@ -197,11 +197,12 @@
#define X86_FEATURE_CAT_L3 ( 7*32+ 4) /* Cache Allocation Technology L3 */
#define X86_FEATURE_CAT_L2 ( 7*32+ 5) /* Cache Allocation Technology L2 */
#define X86_FEATURE_CDP_L3 ( 7*32+ 6) /* Code and Data Prioritization L3 */
+#define X86_FEATURE_INVPCID_SINGLE ( 7*32+ 7) /* Effectively INVPCID && CR4.PCIDE=1 */
#define X86_FEATURE_HW_PSTATE ( 7*32+ 8) /* AMD HW-PState */
#define X86_FEATURE_PROC_FEEDBACK ( 7*32+ 9) /* AMD ProcFeedbackInterface */
#define X86_FEATURE_SME ( 7*32+10) /* AMD Secure Memory Encryption */
-
+#define X86_FEATURE_PTI ( 7*32+11) /* Kernel Page Table Isolation enabled */
#define X86_FEATURE_INTEL_PPIN ( 7*32+14) /* Intel Processor Inventory Number */
#define X86_FEATURE_INTEL_PT ( 7*32+15) /* Intel Processor Trace */
#define X86_FEATURE_AVX512_4VNNIW ( 7*32+16) /* AVX-512 Neural Network Instructions */
@@ -340,5 +341,6 @@
#define X86_BUG_SWAPGS_FENCE X86_BUG(11) /* SWAPGS without input dep on GS */
#define X86_BUG_MONITOR X86_BUG(12) /* IPI required to wake up remote CPU */
#define X86_BUG_AMD_E400 X86_BUG(13) /* CPU is among the affected by Erratum 400 */
+#define X86_BUG_CPU_MELTDOWN X86_BUG(14) /* CPU is affected by meltdown attack and needs kernel page table isolation */
#endif /* _ASM_X86_CPUFEATURES_H */
diff --git a/tools/arch/x86/include/asm/disabled-features.h b/tools/arch/x86/include/asm/disabled-features.h
index 14d6d5007314..b027633e7300 100644
--- a/tools/arch/x86/include/asm/disabled-features.h
+++ b/tools/arch/x86/include/asm/disabled-features.h
@@ -50,6 +50,12 @@
# define DISABLE_LA57 (1<<(X86_FEATURE_LA57 & 31))
#endif
+#ifdef CONFIG_PAGE_TABLE_ISOLATION
+# define DISABLE_PTI 0
+#else
+# define DISABLE_PTI (1 << (X86_FEATURE_PTI & 31))
+#endif
+
/*
* Make sure to add features to the correct mask
*/
@@ -60,7 +66,7 @@
#define DISABLED_MASK4 (DISABLE_PCID)
#define DISABLED_MASK5 0
#define DISABLED_MASK6 0
-#define DISABLED_MASK7 0
+#define DISABLED_MASK7 (DISABLE_PTI)
#define DISABLED_MASK8 0
#define DISABLED_MASK9 (DISABLE_MPX)
#define DISABLED_MASK10 0
--
2.14.3
next prev parent reply other threads:[~2018-01-10 21:30 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-10 21:28 [GIT PULL 00/27] perf/core improvements and fixes Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 01/27] perf test bpf: Improve message about expected samples Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 02/27] perf test bpf: Use designated struct field initializers Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 03/27] perf test bpf: Hook on epoll_pwait() Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 04/27] perf tools: Fix compile error with libunwind x86 Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 05/27] perf report: Fix a wrong offset issue when using /proc/kcore Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 06/27] perf report: Fix a no annotate browser displayed issue Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 07/27] perf header: Add infrastructure to record first and last sample time Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 08/27] perf record: Record the first and last sample time in the header Arnaldo Carvalho de Melo
2018-01-11 13:29 ` Paul Clarke
2018-01-11 14:46 ` Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 09/27] perf tools: Create function to parse time percent Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 10/27] perf tools: Create function to perform multiple time range checking Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 11/27] perf report: Support time percent and multiple time ranges Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 12/27] perf script: " Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 13/27] perf tools: Enable LIBBABELTRACE by default Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 14/27] perf tools: Display perf_event_attr::namespaces debug info Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 15/27] perf: Allocate context task_ctx_data for child event Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 16/27] perf: Add sample_id to PERF_RECORD_ITRACE_START event comment Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 17/27] perf: Make perf_callchain function static Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 18/27] perf: Return empty callchain instead of NULL Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 19/27] perf: Update PERF_RECORD_MISC_* comment for perf_event_header::misc bit 13 Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 20/27] perf script: Add support to display sample misc field Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 21/27] perf script: Add support to display lost events Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 22/27] perf tools: Make the tool's warning messages optional Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 23/27] perf report: Add --stats option to display quick data statistics Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 24/27] perf trace: Beautify 'gettid' syscall result Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 25/27] perf report: Add --tasks option to display monitored tasks Arnaldo Carvalho de Melo
2018-01-10 21:28 ` [PATCH 26/27] perf report: Introduce --mmaps Arnaldo Carvalho de Melo
2018-01-10 21:28 ` Arnaldo Carvalho de Melo [this message]
2018-01-11 5:54 ` [GIT PULL 00/27] perf/core improvements and fixes Ingo Molnar
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