From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, David Woodhouse <dwmw@amazon.co.uk>,
Thomas Gleixner <tglx@linutronix.de>,
Borislav Petkov <bp@suse.de>,
gnomes@lxorguk.ukuu.org.uk, ak@linux.intel.com,
ashok.raj@intel.com, dave.hansen@intel.com, karahmed@amazon.de,
arjan@linux.intel.com, torvalds@linux-foundation.org,
peterz@infradead.org, bp@alien8.de, pbonzini@redhat.com,
tim.c.chen@linux.intel.com, gregkh@linux-foundation.org
Subject: [PATCH 4.15 05/60] x86/cpufeatures: Add Intel feature bits for Speculation Control
Date: Mon, 5 Feb 2018 10:22:38 -0800 [thread overview]
Message-ID: <20180205182214.137394985@linuxfoundation.org> (raw)
In-Reply-To: <20180205182213.902626065@linuxfoundation.org>
4.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: David Woodhouse dwmw@amazon.co.uk
commit fc67dd70adb711a45d2ef34e12d1a8be75edde61
Add three feature bits exposed by new microcode on Intel CPUs for
speculation control.
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Borislav Petkov <bp@suse.de>
Cc: gnomes@lxorguk.ukuu.org.uk
Cc: ak@linux.intel.com
Cc: ashok.raj@intel.com
Cc: dave.hansen@intel.com
Cc: karahmed@amazon.de
Cc: arjan@linux.intel.com
Cc: torvalds@linux-foundation.org
Cc: peterz@infradead.org
Cc: bp@alien8.de
Cc: pbonzini@redhat.com
Cc: tim.c.chen@linux.intel.com
Cc: gregkh@linux-foundation.org
Link: https://lkml.kernel.org/r/1516896855-7642-3-git-send-email-dwmw@amazon.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/include/asm/cpufeatures.h | 3 +++
1 file changed, 3 insertions(+)
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -320,6 +320,9 @@
/* Intel-defined CPU features, CPUID level 0x00000007:0 (EDX), word 18 */
#define X86_FEATURE_AVX512_4VNNIW (18*32+ 2) /* AVX-512 Neural Network Instructions */
#define X86_FEATURE_AVX512_4FMAPS (18*32+ 3) /* AVX-512 Multiply Accumulation Single precision */
+#define X86_FEATURE_SPEC_CTRL (18*32+26) /* Speculation Control (IBRS + IBPB) */
+#define X86_FEATURE_STIBP (18*32+27) /* Single Thread Indirect Branch Predictors */
+#define X86_FEATURE_ARCH_CAPABILITIES (18*32+29) /* IA32_ARCH_CAPABILITIES MSR (Intel) */
/*
* BUG word(s)
next prev parent reply other threads:[~2018-02-05 18:22 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-05 18:22 [PATCH 4.15 00/60] 4.15.2-stable review Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 01/60] KVM: x86: Make indirect calls in emulator speculation safe Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 02/60] KVM: VMX: Make indirect call " Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 03/60] module/retpoline: Warn about missing retpoline in module Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 04/60] x86/cpufeatures: Add CPUID_7_EDX CPUID leaf Greg Kroah-Hartman
2018-02-05 18:22 ` Greg Kroah-Hartman [this message]
2018-02-05 18:22 ` [PATCH 4.15 06/60] x86/cpufeatures: Add AMD feature bits for Speculation Control Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 07/60] x86/msr: Add definitions for new speculation control MSRs Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 08/60] x86/pti: Do not enable PTI on CPUs which are not vulnerable to Meltdown Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 09/60] x86/cpufeature: Blacklist SPEC_CTRL/PRED_CMD on early Spectre v2 microcodes Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 10/60] x86/speculation: Add basic IBPB (Indirect Branch Prediction Barrier) support Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 11/60] x86/alternative: Print unadorned pointers Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 12/60] x86/nospec: Fix header guards names Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 13/60] x86/bugs: Drop one "mitigation" from dmesg Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 14/60] x86/cpu/bugs: Make retpoline module warning conditional Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 15/60] x86/cpufeatures: Clean up Spectre v2 related CPUID flags Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 16/60] x86/retpoline: Simplify vmexit_fill_RSB() Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 17/60] x86/speculation: Simplify indirect_branch_prediction_barrier() Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 18/60] auxdisplay: img-ascii-lcd: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 19/60] iio: adc/accel: Fix up module licenses Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 20/60] pinctrl: pxa: pxa2xx: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 21/60] ASoC: pcm512x: " Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 22/60] KVM: nVMX: Eliminate vmcs02 pool Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 23/60] KVM: VMX: introduce alloc_loaded_vmcs Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 24/60] objtool: Improve retpoline alternative handling Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 25/60] objtool: Add support for alternatives at the end of a section Greg Kroah-Hartman
2018-02-05 18:22 ` [PATCH 4.15 26/60] objtool: Warn on stripped section symbol Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 27/60] x86/mm: Fix overlap of i386 CPU_ENTRY_AREA with FIX_BTMAP Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 28/60] x86/spectre: Check CONFIG_RETPOLINE in command line parser Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 29/60] x86/entry/64: Remove the SYSCALL64 fast path Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 30/60] x86/entry/64: Push extra regs right away Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 31/60] x86/asm: Move status from thread_struct to thread_info Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 32/60] Documentation: Document array_index_nospec Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 33/60] array_index_nospec: Sanitize speculative array de-references Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 34/60] x86: Implement array_index_mask_nospec Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 35/60] x86: Introduce barrier_nospec Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 36/60] x86: Introduce __uaccess_begin_nospec() and uaccess_try_nospec Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 37/60] x86/usercopy: Replace open coded stac/clac with __uaccess_{begin, end} Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 38/60] x86/uaccess: Use __uaccess_begin_nospec() and uaccess_try_nospec Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 39/60] x86/get_user: Use pointer masking to limit speculation Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 40/60] x86/syscall: Sanitize syscall table de-references under speculation Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 41/60] vfs, fdtable: Prevent bounds-check bypass via speculative execution Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 42/60] nl80211: Sanitize array index in parse_txq_params Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 43/60] x86/spectre: Report get_user mitigation for spectre_v1 Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 44/60] x86/spectre: Fix spelling mistake: "vunerable"-> "vulnerable" Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 45/60] x86/cpuid: Fix up "virtual" IBRS/IBPB/STIBP feature bits on Intel Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 46/60] x86/speculation: Use Indirect Branch Prediction Barrier in context switch Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 47/60] x86/paravirt: Remove noreplace-paravirt cmdline option Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 48/60] KVM: VMX: make MSR bitmaps per-VCPU Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 49/60] x86/kvm: Update spectre-v1 mitigation Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 50/60] x86/retpoline: Avoid retpolines for built-in __init functions Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 51/60] x86/spectre: Simplify spectre_v2 command line parsing Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 52/60] x86/pti: Mark constant arrays as __initconst Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 53/60] x86/speculation: Fix typo IBRS_ATT, which should be IBRS_ALL Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 54/60] KVM/x86: Update the reverse_cpuid list to include CPUID_7_EDX Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 55/60] KVM/x86: Add IBPB support Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 56/60] KVM/VMX: Emulate MSR_IA32_ARCH_CAPABILITIES Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 57/60] KVM/VMX: Allow direct access to MSR_IA32_SPEC_CTRL Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 58/60] KVM/SVM: " Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 59/60] serial: core: mark port as initialized after successful IRQ change Greg Kroah-Hartman
2018-02-05 18:23 ` [PATCH 4.15 60/60] fpga: region: release of_parse_phandle nodes after use Greg Kroah-Hartman
2018-02-05 22:14 ` [PATCH 4.15 00/60] 4.15.2-stable review Shuah Khan
2018-02-06 10:33 ` Greg Kroah-Hartman
2018-02-05 23:58 ` Dan Rue
2018-02-06 10:33 ` Greg Kroah-Hartman
2018-02-06 0:36 ` kernelci.org bot
2018-02-06 14:30 ` Guenter Roeck
2018-02-06 14:32 ` Guenter Roeck
2018-02-06 17:00 ` Greg Kroah-Hartman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180205182214.137394985@linuxfoundation.org \
--to=gregkh@linuxfoundation.org \
--cc=ak@linux.intel.com \
--cc=arjan@linux.intel.com \
--cc=ashok.raj@intel.com \
--cc=bp@alien8.de \
--cc=bp@suse.de \
--cc=dave.hansen@intel.com \
--cc=dwmw@amazon.co.uk \
--cc=gnomes@lxorguk.ukuu.org.uk \
--cc=gregkh@linux-foundation.org \
--cc=karahmed@amazon.de \
--cc=linux-kernel@vger.kernel.org \
--cc=pbonzini@redhat.com \
--cc=peterz@infradead.org \
--cc=stable@vger.kernel.org \
--cc=tglx@linutronix.de \
--cc=tim.c.chen@linux.intel.com \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome