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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,
Subject: Re: [PATCH v13 00/11] Introduce support for guest CET feature
Date: Wed, 15 Jul 2020 08:40:09 +0800
Message-ID: <20200715004009.GA1271@local-michael-cet-test> (raw)
In-Reply-To: <20200713181326.GC29725@linux.intel.com>

On Mon, Jul 13, 2020 at 11:13:26AM -0700, Sean Christopherson wrote:
> On Wed, Jul 01, 2020 at 04:04:00PM +0800, Yang Weijiang wrote:
> > Control-flow Enforcement Technology (CET) provides protection against
> > Return/Jump-Oriented Programming (ROP/JOP) attack. There're two CET
> > sub-features: Shadow Stack (SHSTK) and Indirect Branch Tracking (IBT).
> > SHSTK is to prevent ROP programming and IBT is to prevent JOP programming.
> > 
> > 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.
> > 
> > CET kernel patches are here:
> > https://lkml.kernel.org/r/20200429220732.31602-1-yu-cheng.yu@intel.com
> > 
> > v13:
> > - Added CET definitions as a separate patch to facilitate KVM test.
> > - Disabled CET support in KVM if unrestricted_guest is turned off since
> >   in this case CET related instructions/infrastructure cannot be emulated
> >   well.
> This needs to be rebased, I can't get it to apply on any kvm branch nor on
> any 5.8 rc.  And when you send series, especially large series that touch
> lots of code, please explicitly state what commit the series is based on to
> make it easy for reviewers to apply the patches, even if the series needs a
> rebase.
Sorry for the inconvenience, I'll rebase and resend this series.

      reply index

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-01  8:04 Yang Weijiang
2020-07-01  8:04 ` [PATCH v13 01/11] KVM: x86: Include CET definitions for KVM test purpose Yang Weijiang
2020-07-01  8:04 ` [PATCH v13 02/11] KVM: VMX: Introduce CET VMCS fields and flags Yang Weijiang
2020-07-01  8:04 ` [PATCH v13 03/11] KVM: VMX: Set guest CET MSRs per KVM and host configuration Yang Weijiang
2020-07-02 15:13   ` Xiaoyao Li
2020-07-03 15:02     ` Yang Weijiang
2020-07-01  8:04 ` [PATCH v13 04/11] KVM: VMX: Configure CET settings upon guest CR0/4 changing Yang Weijiang
2020-07-01  8:04 ` [PATCH v13 05/11] KVM: x86: Refresh CPUID once guest changes XSS bits Yang Weijiang
2020-07-01  8:04 ` [PATCH v13 06/11] KVM: x86: Load guest fpu state when access MSRs managed by XSAVES Yang Weijiang
2020-07-01  8:04 ` [PATCH v13 07/11] KVM: x86: Add userspace access interface for CET MSRs Yang Weijiang
2020-07-01  8:04 ` [PATCH v13 08/11] KVM: VMX: Enable CET support for nested VM Yang Weijiang
2020-07-01  8:04 ` [PATCH v13 09/11] KVM: VMX: Add VMCS dump and sanity check for CET states Yang Weijiang
2020-07-01  8:04 ` [PATCH v13 10/11] KVM: x86: Add #CP support in guest exception dispatch Yang Weijiang
2020-07-01  8:04 ` [PATCH v13 11/11] KVM: x86: Enable CET virtualization and advertise CET to userspace Yang Weijiang
2020-07-13 18:13 ` [PATCH v13 00/11] Introduce support for guest CET feature Sean Christopherson
2020-07-15  0:40   ` Yang Weijiang [this message]

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