From: KarimAllah Ahmed <karahmed@amazon.de> To: linux-kernel@vger.kernel.org Cc: "KarimAllah Ahmed" <karahmed@amazon.de>, "Andi Kleen" <ak@linux.intel.com>, "Andrea Arcangeli" <aarcange@redhat.com>, "Andy Lutomirski" <luto@kernel.org>, "Arjan van de Ven" <arjan@linux.intel.com>, "Ashok Raj" <ashok.raj@intel.com>, "Asit Mallick" <asit.k.mallick@intel.com>, "Borislav Petkov" <bp@suse.de>, "Dan Williams" <dan.j.williams@intel.com>, "Dave Hansen" <dave.hansen@intel.com>, "David Woodhouse" <dwmw@amazon.co.uk>, "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>, "H . Peter Anvin" <hpa@zytor.com>, "Ingo Molnar" <mingo@redhat.com>, "Janakarajan Natarajan" <Janakarajan.Natarajan@amd.com>, "Joerg Roedel" <joro@8bytes.org>, "Jun Nakajima" <jun.nakajima@intel.com>, "Laura Abbott" <labbott@redhat.com>, "Linus Torvalds" <torvalds@linux-foundation.org>, "Masami Hiramatsu" <mhiramat@kernel.org>, "Paolo Bonzini" <pbonzini@redhat.com>, "Peter Zijlstra" <peterz@infradead.org>, "Radim Krčmář" <rkrcmar@redhat.com>, "Thomas Gleixner" <tglx@linutronix.de>, "Tim Chen" <tim.c.chen@linux.intel.com>, "Tom Lendacky" <thomas.lendacky@amd.com>, kvm@vger.kernel.org, x86@kernel.org, "Arjan Van De Ven" <arjan.van.de.ven@intel.com> Subject: [RFC 02/10] x86/kvm: Add IBPB support Date: Sat, 20 Jan 2018 20:22:53 +0100 [thread overview] Message-ID: <1516476182-5153-3-git-send-email-karahmed@amazon.de> (raw) In-Reply-To: <1516476182-5153-1-git-send-email-karahmed@amazon.de> From: Ashok Raj <ashok.raj@intel.com> Add MSR passthrough for MSR_IA32_PRED_CMD and place branch predictor barriers on switching between VMs to avoid inter VM specte-v2 attacks. [peterz: rebase and changelog rewrite] [dwmw2: fixes] [karahmed: - vmx: expose PRED_CMD whenever it is available - svm: only pass through IBPB if it is available] Cc: Asit Mallick <asit.k.mallick@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Arjan Van De Ven <arjan.van.de.ven@intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Jun Nakajima <jun.nakajima@intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Greg KH <gregkh@linuxfoundation.org> Cc: David Woodhouse <dwmw@amazon.co.uk> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: http://lkml.kernel.org/r/1515720739-43819-6-git-send-email-ashok.raj@intel.com Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: KarimAllah Ahmed <karahmed@amazon.de> --- arch/x86/kvm/svm.c | 14 ++++++++++++++ arch/x86/kvm/vmx.c | 4 ++++ 2 files changed, 18 insertions(+) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 2744b973..cfdb9ab 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -529,6 +529,7 @@ struct svm_cpu_data { struct kvm_ldttss_desc *tss_desc; struct page *save_area; + struct vmcb *current_vmcb; }; static DEFINE_PER_CPU(struct svm_cpu_data *, svm_data); @@ -918,6 +919,9 @@ static void svm_vcpu_init_msrpm(u32 *msrpm) set_msr_interception(msrpm, direct_access_msrs[i].index, 1, 1); } + + if (boot_cpu_has(X86_FEATURE_AMD_PRED_CMD)) + set_msr_interception(msrpm, MSR_IA32_PRED_CMD, 1, 1); } static void add_msr_offset(u32 offset) @@ -1706,11 +1710,17 @@ static void svm_free_vcpu(struct kvm_vcpu *vcpu) __free_pages(virt_to_page(svm->nested.msrpm), MSRPM_ALLOC_ORDER); kvm_vcpu_uninit(vcpu); kmem_cache_free(kvm_vcpu_cache, svm); + /* + * The vmcb page can be recycled, causing a false negative in + * svm_vcpu_load(). So do a full IBPB now. + */ + indirect_branch_prediction_barrier(); } static void svm_vcpu_load(struct kvm_vcpu *vcpu, int cpu) { struct vcpu_svm *svm = to_svm(vcpu); + struct svm_cpu_data *sd = per_cpu(svm_data, cpu); int i; if (unlikely(cpu != vcpu->cpu)) { @@ -1739,6 +1749,10 @@ static void svm_vcpu_load(struct kvm_vcpu *vcpu, int cpu) if (static_cpu_has(X86_FEATURE_RDTSCP)) wrmsrl(MSR_TSC_AUX, svm->tsc_aux); + if (sd->current_vmcb != svm->vmcb) { + sd->current_vmcb = svm->vmcb; + indirect_branch_prediction_barrier(); + } avic_vcpu_load(vcpu, cpu); } diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index d1e25db..3b64de2 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2279,6 +2279,7 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu) if (per_cpu(current_vmcs, cpu) != vmx->loaded_vmcs->vmcs) { per_cpu(current_vmcs, cpu) = vmx->loaded_vmcs->vmcs; vmcs_load(vmx->loaded_vmcs->vmcs); + indirect_branch_prediction_barrier(); } if (!already_loaded) { @@ -6791,6 +6792,9 @@ static __init int hardware_setup(void) kvm_tsc_scaling_ratio_frac_bits = 48; } + if (boot_cpu_has(X86_FEATURE_SPEC_CTRL)) + vmx_disable_intercept_for_msr(MSR_IA32_PRED_CMD, false); + vmx_disable_intercept_for_msr(MSR_FS_BASE, false); vmx_disable_intercept_for_msr(MSR_GS_BASE, false); vmx_disable_intercept_for_msr(MSR_KERNEL_GS_BASE, true); -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: KarimAllah Ahmed <karahmed@amazon.de> To: linux-kernel@vger.kernel.org Cc: KarimAllah Ahmed <karahmed@amazon.de>, Andi Kleen <ak@linux.intel.com>, Andrea Arcangeli <aarcange@redhat.com>, Andy Lutomirski <luto@kernel.org>, Arjan van de Ven <arjan@linux.intel.com>, Ashok Raj <ashok.raj@intel.com>, Asit Mallick <asit.k.mallick@intel.com>, Borislav Petkov <bp@suse.de>, Dan Williams <dan.j.williams@intel.com>, Dave Hansen <dave.hansen@intel.com>, David Woodhouse <dwmw@amazon.co.uk>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, "H . Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>, Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>, Joerg Roedel <joro@8bytes.org>, Jun Nakajima <jun.nakajima@intel.com>, Laura Abbott <labbott@redhat.com>, Linus Torvalds <torvalds@linux-foundation.org>, Masami Hiramatsu <m Subject: [RFC 02/10] x86/kvm: Add IBPB support Date: Sat, 20 Jan 2018 20:22:53 +0100 [thread overview] Message-ID: <1516476182-5153-3-git-send-email-karahmed@amazon.de> (raw) In-Reply-To: <1516476182-5153-1-git-send-email-karahmed@amazon.de> From: Ashok Raj <ashok.raj@intel.com> Add MSR passthrough for MSR_IA32_PRED_CMD and place branch predictor barriers on switching between VMs to avoid inter VM specte-v2 attacks. [peterz: rebase and changelog rewrite] [dwmw2: fixes] [karahmed: - vmx: expose PRED_CMD whenever it is available - svm: only pass through IBPB if it is available] Cc: Asit Mallick <asit.k.mallick@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Arjan Van De Ven <arjan.van.de.ven@intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Jun Nakajima <jun.nakajima@intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Greg KH <gregkh@linuxfoundation.org> Cc: David Woodhouse <dwmw@amazon.co.uk> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: http://lkml.kernel.org/r/1515720739-43819-6-git-send-email-ashok.raj@intel.com Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: KarimAllah Ahmed <karahmed@amazon.de> --- arch/x86/kvm/svm.c | 14 ++++++++++++++ arch/x86/kvm/vmx.c | 4 ++++ 2 files changed, 18 insertions(+) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 2744b973..cfdb9ab 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -529,6 +529,7 @@ struct svm_cpu_data { struct kvm_ldttss_desc *tss_desc; struct page *save_area; + struct vmcb *current_vmcb; }; static DEFINE_PER_CPU(struct svm_cpu_data *, svm_data); @@ -918,6 +919,9 @@ static void svm_vcpu_init_msrpm(u32 *msrpm) set_msr_interception(msrpm, direct_access_msrs[i].index, 1, 1); } + + if (boot_cpu_has(X86_FEATURE_AMD_PRED_CMD)) + set_msr_interception(msrpm, MSR_IA32_PRED_CMD, 1, 1); } static void add_msr_offset(u32 offset) @@ -1706,11 +1710,17 @@ static void svm_free_vcpu(struct kvm_vcpu *vcpu) __free_pages(virt_to_page(svm->nested.msrpm), MSRPM_ALLOC_ORDER); kvm_vcpu_uninit(vcpu); kmem_cache_free(kvm_vcpu_cache, svm); + /* + * The vmcb page can be recycled, causing a false negative in + * svm_vcpu_load(). So do a full IBPB now. + */ + indirect_branch_prediction_barrier(); } static void svm_vcpu_load(struct kvm_vcpu *vcpu, int cpu) { struct vcpu_svm *svm = to_svm(vcpu); + struct svm_cpu_data *sd = per_cpu(svm_data, cpu); int i; if (unlikely(cpu != vcpu->cpu)) { @@ -1739,6 +1749,10 @@ static void svm_vcpu_load(struct kvm_vcpu *vcpu, int cpu) if (static_cpu_has(X86_FEATURE_RDTSCP)) wrmsrl(MSR_TSC_AUX, svm->tsc_aux); + if (sd->current_vmcb != svm->vmcb) { + sd->current_vmcb = svm->vmcb; + indirect_branch_prediction_barrier(); + } avic_vcpu_load(vcpu, cpu); } diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index d1e25db..3b64de2 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2279,6 +2279,7 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu) if (per_cpu(current_vmcs, cpu) != vmx->loaded_vmcs->vmcs) { per_cpu(current_vmcs, cpu) = vmx->loaded_vmcs->vmcs; vmcs_load(vmx->loaded_vmcs->vmcs); + indirect_branch_prediction_barrier(); } if (!already_loaded) { @@ -6791,6 +6792,9 @@ static __init int hardware_setup(void) kvm_tsc_scaling_ratio_frac_bits = 48; } + if (boot_cpu_has(X86_FEATURE_SPEC_CTRL)) + vmx_disable_intercept_for_msr(MSR_IA32_PRED_CMD, false); + vmx_disable_intercept_for_msr(MSR_FS_BASE, false); vmx_disable_intercept_for_msr(MSR_GS_BASE, false); vmx_disable_intercept_for_msr(MSR_KERNEL_GS_BASE, true); -- 2.7.4
next prev parent reply other threads:[~2018-01-20 19:22 UTC|newest] Thread overview: 268+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-01-20 19:22 [RFC 00/10] Speculation Control feature support KarimAllah Ahmed 2018-01-20 19:22 ` KarimAllah Ahmed 2018-01-20 19:22 ` [RFC 01/10] x86/speculation: Add basic support for IBPB KarimAllah Ahmed 2018-01-20 19:22 ` KarimAllah Ahmed 2018-01-20 19:22 ` KarimAllah Ahmed [this message] 2018-01-20 19:22 ` [RFC 02/10] x86/kvm: Add IBPB support KarimAllah Ahmed 2018-01-20 20:18 ` Woodhouse, David 2018-01-20 20:18 ` Woodhouse, David 2018-01-22 18:56 ` Jim Mattson 2018-01-22 18:56 ` Jim Mattson 2018-01-22 19:31 ` Jim Mattson 2018-01-22 19:31 ` Jim Mattson 2018-01-20 19:22 ` [RFC 03/10] x86/speculation: Use Indirect Branch Prediction Barrier in context switch KarimAllah Ahmed 2018-01-20 19:22 ` KarimAllah Ahmed 2018-01-20 19:22 ` [RFC 04/10] x86/mm: Only flush indirect branches when switching into non dumpable process KarimAllah Ahmed 2018-01-20 19:22 ` KarimAllah Ahmed 2018-01-20 21:06 ` Woodhouse, David 2018-01-20 21:06 ` Woodhouse, David 2018-01-22 18:29 ` Tim Chen 2018-01-22 18:29 ` Tim Chen 2018-01-21 11:22 ` Peter Zijlstra 2018-01-21 11:22 ` Peter Zijlstra 2018-01-21 12:04 ` David Woodhouse 2018-01-21 12:04 ` David Woodhouse 2018-01-21 14:07 ` H.J. Lu 2018-01-21 14:07 ` H.J. Lu 2018-01-22 10:19 ` Peter Zijlstra 2018-01-22 10:19 ` Peter Zijlstra 2018-01-22 10:23 ` David Woodhouse 2018-01-22 10:23 ` David Woodhouse 2018-01-21 16:21 ` Ingo Molnar 2018-01-21 16:21 ` Ingo Molnar 2018-01-21 16:25 ` Arjan van de Ven 2018-01-21 16:25 ` Arjan van de Ven 2018-01-21 22:20 ` Woodhouse, David 2018-01-21 22:20 ` Woodhouse, David 2018-01-29 6:35 ` Jon Masters 2018-01-29 6:35 ` Jon Masters 2018-01-29 14:07 ` Peter Zijlstra 2018-01-29 14:07 ` Peter Zijlstra 2018-01-20 19:22 ` [RFC 05/10] x86/speculation: Add basic IBRS support infrastructure KarimAllah Ahmed 2018-01-20 19:22 ` KarimAllah Ahmed 2018-01-21 14:31 ` Thomas Gleixner 2018-01-21 14:31 ` Thomas Gleixner 2018-01-21 14:56 ` Borislav Petkov 2018-01-21 14:56 ` Borislav Petkov 2018-01-22 9:51 ` Peter Zijlstra 2018-01-22 9:51 ` Peter Zijlstra 2018-01-22 12:06 ` Borislav Petkov 2018-01-22 12:06 ` Borislav Petkov 2018-01-22 13:30 ` Greg Kroah-Hartman 2018-01-22 13:30 ` Greg Kroah-Hartman 2018-01-22 13:36 ` Woodhouse, David 2018-01-22 13:37 ` Woodhouse, David 2018-01-21 15:25 ` David Woodhouse 2018-01-21 15:25 ` David Woodhouse 2018-01-23 20:58 ` David Woodhouse 2018-01-23 20:58 ` David Woodhouse 2018-01-23 22:43 ` Johannes Erdfelt 2018-01-24 8:47 ` Peter Zijlstra 2018-01-24 8:47 ` Peter Zijlstra 2018-01-24 9:02 ` David Woodhouse 2018-01-24 9:02 ` David Woodhouse 2018-01-24 9:10 ` Greg Kroah-Hartman 2018-01-24 9:10 ` Greg Kroah-Hartman 2018-01-24 15:09 ` Arjan van de Ven 2018-01-24 15:09 ` Arjan van de Ven 2018-01-24 15:18 ` David Woodhouse 2018-01-24 15:18 ` David Woodhouse 2018-01-24 9:34 ` Peter Zijlstra 2018-01-24 9:34 ` Peter Zijlstra 2018-01-24 10:49 ` Henrique de Moraes Holschuh 2018-01-24 10:49 ` Henrique de Moraes Holschuh 2018-01-24 12:30 ` David Woodhouse 2018-01-24 12:30 ` David Woodhouse 2018-01-24 12:14 ` David Woodhouse 2018-01-24 12:14 ` David Woodhouse 2018-01-24 12:29 ` Peter Zijlstra 2018-01-24 12:29 ` Peter Zijlstra 2018-01-24 12:58 ` David Woodhouse 2018-01-24 12:58 ` David Woodhouse 2018-01-29 20:14 ` [RFC,05/10] " Eduardo Habkost 2018-01-29 20:14 ` Eduardo Habkost 2018-01-29 20:17 ` David Woodhouse 2018-01-29 20:17 ` David Woodhouse 2018-01-29 20:42 ` Eduardo Habkost 2018-01-29 20:42 ` Eduardo Habkost 2018-01-29 20:44 ` Arjan van de Ven 2018-01-29 20:44 ` Arjan van de Ven 2018-01-29 21:02 ` David Woodhouse 2018-01-29 21:02 ` David Woodhouse 2018-01-29 21:37 ` Jim Mattson 2018-01-29 21:37 ` Jim Mattson 2018-01-29 21:50 ` Eduardo Habkost 2018-01-29 21:50 ` Eduardo Habkost 2018-01-29 22:12 ` Jim Mattson 2018-01-29 22:12 ` Jim Mattson 2018-01-30 1:22 ` Eduardo Habkost 2018-01-30 1:22 ` Eduardo Habkost 2018-01-29 22:25 ` Andi Kleen 2018-01-29 22:25 ` Andi Kleen 2018-01-30 1:37 ` Eduardo Habkost 2018-01-30 1:37 ` Eduardo Habkost 2018-01-29 21:37 ` Andi Kleen 2018-01-29 21:37 ` Andi Kleen 2018-01-29 21:44 ` Eduardo Habkost 2018-01-29 21:44 ` Eduardo Habkost 2018-01-29 22:10 ` Konrad Rzeszutek Wilk 2018-01-29 22:10 ` Konrad Rzeszutek Wilk 2018-01-30 1:12 ` Eduardo Habkost 2018-01-30 1:12 ` Eduardo Habkost 2018-01-30 0:23 ` Linus Torvalds 2018-01-30 0:23 ` Linus Torvalds 2018-01-30 1:03 ` Jim Mattson 2018-01-30 1:03 ` Jim Mattson 2018-01-30 3:13 ` Andi Kleen 2018-01-30 3:13 ` Andi Kleen 2018-01-31 15:03 ` Paolo Bonzini 2018-01-31 15:03 ` Paolo Bonzini 2018-01-31 15:07 ` Dr. David Alan Gilbert 2018-01-31 15:07 ` Dr. David Alan Gilbert 2018-01-30 1:32 ` Arjan van de Ven 2018-01-30 1:32 ` Arjan van de Ven 2018-01-30 3:32 ` Linus Torvalds 2018-01-30 3:32 ` Linus Torvalds 2018-01-30 12:04 ` Eduardo Habkost 2018-01-30 12:04 ` Eduardo Habkost 2018-01-30 13:54 ` Arjan van de Ven 2018-01-30 13:54 ` Arjan van de Ven 2018-01-30 8:22 ` David Woodhouse 2018-01-30 8:22 ` David Woodhouse 2018-01-30 11:35 ` David Woodhouse 2018-01-30 11:35 ` David Woodhouse 2018-01-30 11:56 ` Dr. David Alan Gilbert 2018-01-30 11:56 ` Dr. David Alan Gilbert 2018-01-30 12:11 ` Christian Borntraeger 2018-01-30 12:11 ` Christian Borntraeger 2018-01-30 14:46 ` Christophe de Dinechin 2018-01-30 14:46 ` Christophe de Dinechin 2018-01-30 14:52 ` Christian Borntraeger 2018-01-30 14:52 ` Christian Borntraeger 2018-01-30 14:56 ` Christophe de Dinechin 2018-01-30 14:56 ` Christophe de Dinechin 2018-01-30 15:33 ` Christian Borntraeger 2018-01-30 15:33 ` Christian Borntraeger 2018-01-30 20:46 ` Alan Cox 2018-01-30 20:46 ` Alan Cox 2018-01-31 10:05 ` Christophe de Dinechin 2018-01-31 10:05 ` Christophe de Dinechin 2018-01-31 10:15 ` Thomas Gleixner 2018-01-31 10:15 ` Thomas Gleixner 2018-01-31 11:04 ` Dr. David Alan Gilbert 2018-01-31 11:04 ` Dr. David Alan Gilbert 2018-01-31 11:52 ` Borislav Petkov 2018-01-31 11:52 ` Borislav Petkov 2018-01-31 12:30 ` Dr. David Alan Gilbert 2018-01-31 12:30 ` Dr. David Alan Gilbert 2018-01-31 13:18 ` Borislav Petkov 2018-01-31 13:18 ` Borislav Petkov 2018-01-31 14:04 ` Dr. David Alan Gilbert 2018-01-31 14:04 ` Dr. David Alan Gilbert 2018-01-31 14:44 ` Eduardo Habkost 2018-01-31 14:44 ` Eduardo Habkost 2018-01-31 16:28 ` Borislav Petkov 2018-01-31 16:28 ` Borislav Petkov 2018-01-31 11:07 ` Christophe de Dinechin 2018-01-31 11:07 ` Christophe de Dinechin 2018-01-31 15:00 ` Eduardo Habkost 2018-01-31 15:00 ` Eduardo Habkost 2018-01-31 15:11 ` Arjan van de Ven 2018-01-31 15:11 ` Arjan van de Ven 2018-01-31 10:03 ` [RFC 05/10] " Christophe de Dinechin 2018-01-31 10:03 ` Christophe de Dinechin 2018-01-20 19:22 ` [RFC 06/10] x86/speculation: Add inlines to control Indirect Branch Speculation KarimAllah Ahmed 2018-01-20 19:22 ` KarimAllah Ahmed 2018-01-20 19:22 ` [RFC 07/10] x86: Simplify spectre_v2 command line parsing KarimAllah Ahmed 2018-01-20 19:22 ` KarimAllah Ahmed 2018-01-20 19:22 ` [RFC 08/10] x86/idle: Control Indirect Branch Speculation in idle KarimAllah Ahmed 2018-01-20 19:22 ` KarimAllah Ahmed 2018-01-20 19:23 ` [RFC 09/10] x86/enter: Create macros to restrict/unrestrict Indirect Branch Speculation KarimAllah Ahmed 2018-01-20 19:23 ` KarimAllah Ahmed 2018-01-21 19:14 ` Andy Lutomirski 2018-01-21 19:14 ` Andy Lutomirski 2018-01-23 16:12 ` Tom Lendacky 2018-01-23 16:12 ` Tom Lendacky 2018-01-23 16:20 ` Woodhouse, David 2018-01-23 16:20 ` Woodhouse, David 2018-01-23 22:37 ` Tom Lendacky 2018-01-23 22:37 ` Tom Lendacky 2018-01-23 22:49 ` Andi Kleen 2018-01-23 22:49 ` Andi Kleen 2018-01-23 23:14 ` Woodhouse, David 2018-01-23 23:14 ` Woodhouse, David 2018-01-23 23:22 ` Andi Kleen 2018-01-23 23:22 ` Andi Kleen 2018-01-24 0:47 ` Tim Chen 2018-01-24 0:47 ` Tim Chen 2018-01-24 1:00 ` Andy Lutomirski 2018-01-24 1:00 ` Andy Lutomirski 2018-01-24 1:22 ` David Woodhouse 2018-01-24 1:22 ` David Woodhouse 2018-01-24 1:59 ` Van De Ven, Arjan 2018-01-24 1:59 ` Van De Ven, Arjan 2018-01-24 3:25 ` Andy Lutomirski 2018-01-24 3:25 ` Andy Lutomirski 2018-01-21 19:34 ` Linus Torvalds 2018-01-21 20:28 ` David Woodhouse 2018-01-21 20:28 ` David Woodhouse 2018-01-21 21:35 ` Linus Torvalds 2018-01-21 21:35 ` Linus Torvalds 2018-01-21 22:00 ` David Woodhouse 2018-01-21 22:00 ` David Woodhouse 2018-01-21 22:27 ` Linus Torvalds 2018-01-21 22:27 ` Linus Torvalds 2018-01-22 16:27 ` David Woodhouse 2018-01-22 16:27 ` David Woodhouse 2018-01-23 7:29 ` Ingo Molnar 2018-01-23 7:29 ` Ingo Molnar 2018-01-23 7:53 ` Ingo Molnar 2018-01-23 7:53 ` Ingo Molnar 2018-01-23 9:27 ` Ingo Molnar 2018-01-23 9:27 ` Ingo Molnar 2018-01-23 9:37 ` David Woodhouse 2018-01-23 9:37 ` David Woodhouse 2018-01-23 15:01 ` Dave Hansen 2018-01-23 15:01 ` Dave Hansen 2018-01-23 9:30 ` David Woodhouse 2018-01-23 9:30 ` David Woodhouse 2018-01-23 10:15 ` Ingo Molnar 2018-01-23 10:15 ` Ingo Molnar 2018-01-23 10:27 ` David Woodhouse 2018-01-23 10:27 ` David Woodhouse 2018-01-23 10:44 ` Ingo Molnar 2018-01-23 10:44 ` Ingo Molnar 2018-01-23 10:57 ` David Woodhouse 2018-01-23 10:23 ` Ingo Molnar 2018-01-23 10:23 ` Ingo Molnar 2018-01-23 10:35 ` David Woodhouse 2018-02-04 18:43 ` Thomas Gleixner 2018-02-04 18:43 ` Thomas Gleixner 2018-02-04 20:22 ` David Woodhouse 2018-02-04 20:22 ` David Woodhouse 2018-02-06 9:14 ` David Woodhouse 2018-02-06 9:14 ` David Woodhouse 2018-01-25 16:19 ` Mason 2018-01-25 16:19 ` Mason 2018-01-25 17:16 ` Greg Kroah-Hartman 2018-01-25 17:16 ` Greg Kroah-Hartman 2018-01-29 11:59 ` Mason 2018-01-29 11:59 ` Mason 2018-01-24 0:05 ` Andi Kleen 2018-01-23 20:16 ` Pavel Machek 2018-01-23 20:16 ` Pavel Machek 2018-01-20 19:23 ` [RFC 10/10] x86/enter: Use IBRS on syscall and interrupts KarimAllah Ahmed 2018-01-20 19:23 ` KarimAllah Ahmed 2018-01-21 13:50 ` Konrad Rzeszutek Wilk 2018-01-21 13:50 ` Konrad Rzeszutek Wilk 2018-01-21 14:40 ` KarimAllah Ahmed 2018-01-21 14:40 ` KarimAllah Ahmed 2018-01-21 17:22 ` Dave Hansen 2018-01-21 17:22 ` Dave Hansen 2018-01-21 14:02 ` [RFC 00/10] Speculation Control feature support Konrad Rzeszutek Wilk 2018-01-21 14:02 ` Konrad Rzeszutek Wilk 2018-01-22 21:27 ` David Woodhouse 2018-01-22 21:27 ` David Woodhouse 2018-01-20 20:28 [RFC 02/10] x86/kvm: Add IBPB support Liran Alon 2018-01-20 20:36 ` Woodhouse, David 2018-01-20 20:36 ` Woodhouse, David
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