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From: Yang Weijiang <weijiang.yang@intel.com>
To: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Yang Weijiang <weijiang.yang@intel.com>,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	pbonzini@redhat.com, jmattson@google.com,
	yu.c.zhang@linux.intel.com
Subject: Re: [PATCH v12 00/10] Introduce support for guest CET feature
Date: Thu, 11 Jun 2020 09:29:13 +0800	[thread overview]
Message-ID: <20200611012913.GA15497@local-michael-cet-test> (raw)
In-Reply-To: <20200610165635.GB18790@linux.intel.com>

On Wed, Jun 10, 2020 at 09:56:36AM -0700, Sean Christopherson wrote:
> On Wed, May 06, 2020 at 04:20:59PM +0800, Yang Weijiang wrote:
> > Several parts in KVM have been updated to provide VM CET support, including:
> > CPUID/XSAVES config, MSR pass-through, user space MSR access interface, 
> > vmentry/vmexit config, nested VM etc. These patches have dependency on CET
> > kernel patches for xsaves support and CET definitions, e.g., MSR and related
> > feature flags.
> 
> Other than the MSR and cpufeatures flags definitions, is there any direct
> dependency on kernel CET support?  I.e. if/when XSAVES support is merged,
> is there anything beyond the architectural definitions that are required to
> merge KVM CET virtualization?
No, KVM CET patches only depend on kernel CET related definitions and XSAVES 
support now. But to make guest CET work, we need CET patches for QEMU. 

  reply	other threads:[~2020-06-11  1:28 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-06  8:20 [PATCH v12 00/10] Introduce support for guest CET feature Yang Weijiang
2020-05-06  8:21 ` [PATCH v12 01/10] KVM: VMX: Introduce CET VMCS fields and flags Yang Weijiang
2020-05-06  8:21 ` [PATCH v12 02/10] KVM: VMX: Set guest CET MSRs per KVM and host configuration Yang Weijiang
2020-05-07  5:54   ` kbuild test robot
2020-05-06  8:21 ` [PATCH v12 03/10] KVM: VMX: Configure CET settings upon guest CR0/4 changing Yang Weijiang
2020-05-06  8:21 ` [PATCH v12 04/10] KVM: x86: Refresh CPUID once guest changes XSS bits Yang Weijiang
2020-05-06  8:21 ` [PATCH v12 05/10] KVM: x86: Load guest fpu state when access MSRs managed by XSAVES Yang Weijiang
2020-05-06  8:21 ` [PATCH v12 06/10] KVM: x86: Add userspace access interface for CET MSRs Yang Weijiang
2020-05-07  5:09   ` kbuild test robot
2020-05-06  8:21 ` [PATCH v12 07/10] KVM: VMX: Enable CET support for nested VM Yang Weijiang
2020-05-06  8:21 ` [PATCH v12 08/10] KVM: VMX: Add VMCS dump and sanity check for CET states Yang Weijiang
2020-05-06  8:21 ` [PATCH v12 09/10] KVM: x86: Add #CP support in guest exception dispatch Yang Weijiang
2020-05-06  8:21 ` [PATCH v12 10/10] KVM: x86: Enable CET virtualization and advertise CET to userspace Yang Weijiang
2020-05-20  5:18   ` Sean Christopherson
2020-05-06  8:21 ` [kvm-unit-tests PATCH v2] x86: Add test cases for user-mode CET validation Yang Weijiang
2020-05-18  8:42 ` [PATCH v12 00/10] Introduce support for guest CET feature Yang Weijiang
2020-05-19  6:06   ` Sean Christopherson
2020-06-10 16:56 ` Sean Christopherson
2020-06-11  1:29   ` Yang Weijiang [this message]
2020-06-23 18:39     ` Sean Christopherson
2020-06-24  5:56       ` Yang Weijiang

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