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From: Chao Gao <chao.gao@intel.com>
To: Xiaoyao Li <xiaoyao.li@intel.com>
Cc: <kvm@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<x86@kernel.org>, <seanjc@google.com>, <pbonzini@redhat.com>,
	<dave.hansen@intel.com>, <rick.p.edgecombe@intel.com>,
	<mlevitsk@redhat.com>, <john.allen@amd.com>,
	<weijiang.yang@intel.com>, <minipli@grsecurity.net>,
	<xin@zytor.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
	"Thomas Gleixner" <tglx@linutronix.de>
Subject: Re: [PATCH v11 00/23] Enable CET Virtualization
Date: Mon, 7 Jul 2025 09:32:37 +0800	[thread overview]
Message-ID: <aGsjtapc5igIjng+@intel.com> (raw)
In-Reply-To: <88443d81-78ac-45ad-b359-b328b9db5829@intel.com>

On Mon, Jul 07, 2025 at 12:51:14AM +0800, Xiaoyao Li wrote:
>Hi Chao,
>
>On 7/4/2025 4:49 PM, Chao Gao wrote:
>> Tests:
>> ======================
>> This series passed basic CET user shadow stack test and kernel IBT test in L1
>> and L2 guest.
>> The patch series_has_ impact to existing vmx test cases in KVM-unit-tests,the
>> failures have been fixed here[1].
>> One new selftest app[2] is introduced for testing CET MSRs accessibilities.
>> 
>> Note, this series hasn't been tested on AMD platform yet.
>> 
>> To run user SHSTK test and kernel IBT test in guest, an CET capable platform
>> is required, e.g., Sapphire Rapids server, and follow below steps to build
>> the binaries:
>> 
>> 1. Host kernel: Apply this series to mainline kernel (>= v6.6) and build.
>> 
>> 2. Guest kernel: Pull kernel (>= v6.6), opt-in CONFIG_X86_KERNEL_IBT
>> and CONFIG_X86_USER_SHADOW_STACK options. Build with CET enabled gcc versions
>> (>= 8.5.0).
>> 
>> 3. Apply CET QEMU patches[3] before build mainline QEMU.
>
>You forgot to provide the links of [1][2][3].

Oops, thanks for catching this.

Here are the links:

[1]: KVM-unit-tests fixup:
https://lore.kernel.org/all/20230913235006.74172-1-weijiang.yang@intel.com/
[2]: Selftest for CET MSRs:
https://lore.kernel.org/all/20230914064201.85605-1-weijiang.yang@intel.com/
[3]: QEMU patch:
https://lore.kernel.org/all/20230720111445.99509-1-weijiang.yang@intel.com/

Please note that [1] has already been merged. And [3] is an older version of
CET for QEMU; I plan to post a new version for QEMU after the KVM series is
merged.

  reply	other threads:[~2025-07-07  1:32 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-04  8:49 [PATCH v11 00/23] Enable CET Virtualization Chao Gao
2025-07-04  8:49 ` [PATCH v11 01/23] KVM: x86: Rename kvm_{g,s}et_msr()* to show that they emulate guest accesses Chao Gao
2025-07-24 11:37   ` Huang, Kai
2025-07-24 13:31     ` Sean Christopherson
2025-07-28 22:31   ` Xin Li
2025-07-29  0:45     ` Chao Gao
2025-07-29 18:19       ` Sean Christopherson
2025-07-04  8:49 ` [PATCH v11 02/23] KVM: x86: Add kvm_msr_{read,write}() helpers Chao Gao
2025-07-04  8:49 ` [PATCH v11 03/23] KVM: x86: Manually clear MPX state only on INIT Chao Gao
2025-07-04  8:49 ` [PATCH v11 04/23] KVM: x86: Zero XSTATE components on INIT by iterating over supported features Chao Gao
2025-07-04  8:49 ` [PATCH v11 05/23] KVM: x86: Introduce KVM_{G,S}ET_ONE_REG uAPIs support Chao Gao
2025-07-04  8:49 ` [PATCH v11 06/23] KVM: x86: Report XSS as to-be-saved if there are supported features Chao Gao
2025-07-04  8:49 ` [PATCH v11 07/23] KVM: x86: Refresh CPUID on write to guest MSR_IA32_XSS Chao Gao
2025-07-04  8:49 ` [PATCH v11 08/23] KVM: x86: Initialize kvm_caps.supported_xss Chao Gao
2025-07-04  8:49 ` [PATCH v11 09/23] KVM: x86: Load guest FPU state when access XSAVE-managed MSRs Chao Gao
2025-07-04  8:49 ` [PATCH v11 10/23] KVM: x86: Add fault checks for guest CR4.CET setting Chao Gao
2025-07-04  8:49 ` [PATCH v11 11/23] KVM: x86: Report KVM supported CET MSRs as to-be-saved Chao Gao
2025-07-04  8:49 ` [PATCH v11 12/23] KVM: VMX: Introduce CET VMCS fields and control bits Chao Gao
2025-07-28 22:53   ` Xin Li
2025-07-29  1:30     ` Chao Gao
2025-07-29  2:17       ` Xin Li
2025-07-04  8:49 ` [PATCH v11 13/23] KVM: x86: Enable guest SSP read/write interface with new uAPIs Chao Gao
2025-07-04  8:49 ` [PATCH v11 14/23] KVM: VMX: Emulate read and write to CET MSRs Chao Gao
2025-07-04  8:49 ` [PATCH v11 15/23] KVM: x86: Save and reload SSP to/from SMRAM Chao Gao
2025-07-04  8:49 ` [PATCH v11 16/23] KVM: VMX: Set up interception for CET MSRs Chao Gao
2025-07-04  8:49 ` [PATCH v11 17/23] KVM: VMX: Set host constant supervisor states to VMCS fields Chao Gao
2025-07-04  8:49 ` [PATCH v11 18/23] KVM: x86: Don't emulate instructions guarded by CET Chao Gao
2025-07-04  8:49 ` [PATCH v11 19/23] KVM: x86: Enable CET virtualization for VMX and advertise to userspace Chao Gao
2025-07-21 15:51   ` Mathias Krause
2025-07-21 17:45     ` Sean Christopherson
2025-07-22  5:49       ` Mathias Krause
2025-07-22 14:13         ` Sean Christopherson
2025-07-22 21:25         ` [PATCH v2] KVM: VMX: Make CR4.CET a guest owned bit Mathias Krause
2025-07-23  6:24           ` Chao Gao
2025-08-06 20:58   ` [PATCH v11 19/23] KVM: x86: Enable CET virtualization for VMX and advertise to userspace John Allen
2025-08-06 22:47     ` Sean Christopherson
2025-07-04  8:49 ` [PATCH v11 20/23] KVM: nVMX: Virtualize NO_HW_ERROR_CODE_CC for L1 event injection to L2 Chao Gao
2025-07-04  8:49 ` [PATCH v11 21/23] KVM: nVMX: Enable CET support for nested guest Chao Gao
2025-07-28  6:30   ` Xin Li
2025-07-28  8:42     ` Chao Gao
2025-07-04  8:49 ` [PATCH v11 22/23] KVM: nVMX: Add consistency checks for CR0.WP and CR4.CET Chao Gao
2025-07-04  8:49 ` [PATCH v11 23/23] KVM: nVMX: Add consistency checks for CET states Chao Gao
2025-07-06 16:51 ` [PATCH v11 00/23] Enable CET Virtualization Xiaoyao Li
2025-07-07  1:32   ` Chao Gao [this message]
2025-07-16 20:36     ` John Allen
2025-07-17  7:00       ` Mathias Krause
2025-07-17  7:57         ` Chao Gao
2025-07-21 18:08           ` John Allen
2025-07-21 15:35 ` Mathias Krause

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