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From: Jim Mattson <jmattson@google.com>
To: Liran Alon <liran.alon@oracle.com>
Cc: "Paolo Bonzini" <pbonzini@redhat.com>,
	"Sean Christopherson" <sean.j.christopherson@intel.com>,
	"Borislav Petkov" <bp@alien8.de>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Ingo Molnar" <mingo@redhat.com>,
	"the arch/x86 maintainers" <x86@kernel.org>,
	"H. Peter Anvin" <hpa@zytor.com>,
	"Peter Zijlstra" <peterz@infradead.org>,
	"Arnaldo Carvalho de Melo" <acme@kernel.org>,
	"Mark Rutland" <mark.rutland@arm.com>,
	"Alexander Shishkin" <alexander.shishkin@linux.intel.com>,
	"Jiri Olsa" <jolsa@redhat.com>,
	"Namhyung Kim" <namhyung@kernel.org>,
	"Radim Krčmář" <rkrcmar@redhat.com>,
	"Vitaly Kuznetsov" <vkuznets@redhat.com>,
	"Wanpeng Li" <wanpengli@tencent.com>,
	"Joerg Roedel" <joro@8bytes.org>,
	"Tony Luck" <tony.luck@intel.com>,
	"Tony W Wang-oc" <TonyWWang-oc@zhaoxin.com>,
	"Len Brown" <lenb@kernel.org>, "Shuah Khan" <shuah@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	"kvm list" <kvm@vger.kernel.org>,
	linux-edac@vger.kernel.org,
	"Linux PM list" <linux-pm@vger.kernel.org>,
	"open list:KERNEL SELFTEST FRAMEWORK"
	<linux-kselftest@vger.kernel.org>,
	"Jarkko Sakkinen" <jarkko.sakkinen@linux.intel.com>
Subject: Re: [PATCH v4 11/19] x86/cpu: Print VMX flags in /proc/cpuinfo using VMX_FEATURES_*
Date: Thu, 12 Dec 2019 09:57:08 -0800	[thread overview]
Message-ID: <CALMp9eRAYj=dKDtnPymkUA_OOMv+9a4WdPNt4hdpFtBgzwNA9w@mail.gmail.com> (raw)
In-Reply-To: <DA429131-7A4C-4B74-A020-6CE7622ED2F8@oracle.com>

On Thu, Dec 12, 2019 at 9:53 AM Liran Alon <liran.alon@oracle.com> wrote:

> Why should CPU VMX features be treated differently than standard CPUID deduced features?

Do we have the right Intel people on the recipient list to answer this
question? Presumably, Intel felt that this information should be
available in supervisor mode only.

Sean?

  reply	other threads:[~2019-12-12 17:57 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-28  1:39 [PATCH v4 00/19] x86/cpu: Clean up handling of VMX features Sean Christopherson
2019-11-28  1:39 ` [PATCH v4 01/19] x86/msr-index: Clean up bit defines for IA32_FEATURE_CONTROL MSR Sean Christopherson
2019-11-28 21:07   ` kbuild test robot
2019-11-30 20:52   ` kbuild test robot
2019-12-02 19:06     ` Sean Christopherson
2019-12-12  9:25       ` Borislav Petkov
2019-12-12 17:48         ` Sean Christopherson
2019-12-12 18:19           ` Borislav Petkov
2019-11-28  1:39 ` [PATCH v4 02/19] selftests: kvm: Replace manual MSR defs with common msr-index.h Sean Christopherson
2019-11-28  1:40 ` [PATCH v4 03/19] tools arch x86: Sync msr-index.h from kernel sources Sean Christopherson
2019-11-28  1:40 ` [PATCH v4 04/19] x86/intel: Initialize IA32_FEAT_CTL MSR at boot Sean Christopherson
2019-11-28  1:40 ` [PATCH v4 05/19] x86/mce: WARN once if IA32_FEAT_CTL MSR is left unlocked Sean Christopherson
2019-11-28  1:40 ` [PATCH v4 06/19] x86/centaur: Use common IA32_FEAT_CTL MSR initialization Sean Christopherson
2019-11-28  1:40 ` [PATCH v4 07/19] x86/zhaoxin: " Sean Christopherson
2019-11-28  1:40 ` [PATCH v4 08/19] x86/cpu: Clear VMX feature flag if VMX is not fully enabled Sean Christopherson
2019-11-28  1:40 ` [PATCH v4 09/19] x86/vmx: Introduce VMX_FEATURES_* Sean Christopherson
2019-11-28  1:40 ` [PATCH v4 10/19] x86/cpu: Detect VMX features on Intel, Centaur and Zhaoxin CPUs Sean Christopherson
2019-12-12 11:38   ` Borislav Petkov
2019-12-12 17:55     ` Sean Christopherson
2019-12-12 18:24       ` Borislav Petkov
2019-11-28  1:40 ` [PATCH v4 11/19] x86/cpu: Print VMX flags in /proc/cpuinfo using VMX_FEATURES_* Sean Christopherson
2019-12-12 12:26   ` Borislav Petkov
2019-12-12 14:13     ` Paolo Bonzini
2019-12-12 15:52       ` Liran Alon
2019-12-12 15:57         ` Paolo Bonzini
2019-12-12 17:43           ` Sean Christopherson
2019-12-12 17:47             ` Paolo Bonzini
2019-12-12 17:52               ` Liran Alon
2019-12-12 17:57                 ` Jim Mattson [this message]
2019-12-12 18:04                   ` Liran Alon
2019-12-12 18:27                     ` Sean Christopherson
2019-12-12 18:32                 ` Borislav Petkov
2019-12-12 17:47             ` Liran Alon
2019-12-12 18:18       ` Sean Christopherson
2019-12-12 18:23         ` Paolo Bonzini
2019-12-21  3:48           ` Sean Christopherson
2019-11-28  1:40 ` [PATCH v4 12/19] x86/cpu: Set synthetic VMX cpufeatures during init_ia32_feat_ctl() Sean Christopherson
2019-11-28  1:40 ` [PATCH v4 13/19] x86/cpufeatures: Add flag to track whether MSR IA32_FEAT_CTL is configured Sean Christopherson
2019-11-28  1:40 ` [PATCH v4 14/19] KVM: VMX: Drop initialization of IA32_FEAT_CTL MSR Sean Christopherson
2019-11-28  1:40 ` [PATCH v4 15/19] KVM: VMX: Use VMX feature flag to query BIOS enabling Sean Christopherson
2019-11-28  1:40 ` [PATCH v4 16/19] KVM: VMX: Check for full VMX support when verifying CPU compatibility Sean Christopherson
2019-11-28  1:40 ` [PATCH v4 17/19] KVM: VMX: Use VMX_FEATURE_* flags to define VMCS control bits Sean Christopherson
2019-11-28  1:40 ` [PATCH v4 18/19] perf/x86: Provide stubs of KVM helpers for non-Intel CPUs Sean Christopherson
2019-11-28  1:40 ` [PATCH v4 19/19] KVM: VMX: Allow KVM_INTEL when building for Centaur and/or Zhaoxin CPUs Sean Christopherson
2019-12-12 14:07 ` [PATCH v4 00/19] x86/cpu: Clean up handling of VMX features Borislav Petkov
2019-12-21  3:44   ` Sean Christopherson

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