From: "Liu, Jingqi" <jingqi.liu@intel.com>
To: Chao Gao <chao.gao@intel.com>, <kvm@vger.kernel.org>
Cc: Jiaan Lu <jiaan.lu@intel.com>, Zhang Chen <chen.zhang@intel.com>,
"Sean Christopherson" <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>, <x86@kernel.org>,
"H. Peter Anvin" <hpa@zytor.com>, <linux-kernel@vger.kernel.org>
Subject: Re: [RFC PATCH v2 08/11] KVM: VMX: Advertise MITI_ENUM_RETPOLINE_S_SUPPORT
Date: Mon, 22 May 2023 17:43:21 +0800 [thread overview]
Message-ID: <00679dfd-5131-d951-f554-94c66c7c357e@intel.com> (raw)
In-Reply-To: <20230414062545.270178-9-chao.gao@intel.com>
On 4/14/2023 2:25 PM, Chao Gao wrote:
> Allow guest to query if the underying VMM understands Retpoline and
> report the statue of Retpoline in suprevisor mode i.e. CPL < 3 via
s/statue/status
> MSR_VIRTUAL_MITIGATION_ENUM/CTRL.
>
> Disable RRSBA behavior by setting RRSBA_DIS_S for guest if guest is
> using retpoline and the processor has the behavior.
>
> Signed-off-by: Zhang Chen <chen.zhang@intel.com>
> Signed-off-by: Chao Gao <chao.gao@intel.com>
> Tested-by: Jiaan Lu <jiaan.lu@intel.com>
> ---
Thanks,
Jingqi
next prev parent reply other threads:[~2023-05-22 9:43 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-14 6:25 [RFC PATCH v2 00/11] Intel IA32_SPEC_CTRL Virtualization Chao Gao
2023-04-14 6:25 ` [RFC PATCH v2 01/11] x86/msr-index: Add bit definitions for BHI_DIS_S and BHI_NO Chao Gao
2023-04-14 9:52 ` Binbin Wu
2023-04-14 6:25 ` [RFC PATCH v2 02/11] KVM: x86: Advertise CPUID.7.2.EDX and RRSBA_CTRL support Chao Gao
2023-04-16 7:04 ` Binbin Wu
2023-04-16 13:25 ` Chao Gao
2023-05-15 6:53 ` Xiaoyao Li
2023-05-16 2:04 ` Chao Gao
2023-05-16 2:22 ` Xiaoyao Li
2023-05-16 3:01 ` Chao Gao
2023-05-16 7:03 ` Xiaoyao Li
2023-05-16 9:09 ` Chao Gao
2023-05-18 9:50 ` Xiaoyao Li
2023-05-19 9:43 ` Chao Gao
2023-04-14 6:25 ` [RFC PATCH v2 03/11] KVM: x86: Advertise BHI_CTRL support Chao Gao
2023-05-15 7:14 ` Xiaoyao Li
2023-04-14 6:25 ` [RFC PATCH v2 04/11] KVM: VMX: Add IA32_SPEC_CTRL virtualization support Chao Gao
2023-04-17 3:17 ` Binbin Wu
2023-04-18 2:07 ` Chao Gao
2023-04-17 6:48 ` Chenyi Qiang
2023-04-17 7:31 ` Chao Gao
2023-05-16 7:16 ` Xiaoyao Li
2023-05-16 9:20 ` Chao Gao
2023-04-14 6:25 ` [RFC PATCH v2 05/11] x86/bugs: Use Virtual MSRs to request hardware mitigations Chao Gao
2023-04-17 13:43 ` Binbin Wu
2023-04-18 2:01 ` Chao Gao
2023-04-14 6:25 ` [RFC PATCH v2 06/11] KVM: x86: Advertise ARCH_CAP_VIRTUAL_ENUM support Chao Gao
2023-05-18 10:14 ` Xiaoyao Li
2023-05-19 9:57 ` Chao Gao
2023-05-22 1:02 ` Xiaoyao Li
2023-04-14 6:25 ` [RFC PATCH v2 07/11] KVM: VMX: Advertise MITIGATION_CTRL support Chao Gao
2023-04-14 6:25 ` [RFC PATCH v2 08/11] KVM: VMX: Advertise MITI_ENUM_RETPOLINE_S_SUPPORT Chao Gao
2023-05-18 10:25 ` Xiaoyao Li
2023-05-19 10:26 ` Chao Gao
2023-05-22 9:43 ` Liu, Jingqi [this message]
2023-04-14 6:25 ` [RFC PATCH v2 09/11] KVM: VMX: Advertise MITI_CTRL_BHB_CLEAR_SEQ_S_SUPPORT Chao Gao
2023-05-22 9:41 ` Liu, Jingqi
2023-04-14 6:25 ` [RFC PATCH v2 10/11] KVM: selftests: Add tests for virtual enumeration/mitigation MSRs Chao Gao
2023-05-22 9:39 ` Liu, Jingqi
2023-04-14 6:25 ` [RFC PATCH v2 11/11] KVM: selftests: Add tests for IA32_SPEC_CTRL MSR Chao Gao
2023-04-14 9:51 ` [RFC PATCH v2 00/11] Intel IA32_SPEC_CTRL Virtualization Binbin Wu
2023-04-14 22:10 ` Pawan Gupta
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=00679dfd-5131-d951-f554-94c66c7c357e@intel.com \
--to=jingqi.liu@intel.com \
--cc=bp@alien8.de \
--cc=chao.gao@intel.com \
--cc=chen.zhang@intel.com \
--cc=dave.hansen@linux.intel.com \
--cc=hpa@zytor.com \
--cc=jiaan.lu@intel.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=pbonzini@redhat.com \
--cc=seanjc@google.com \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox