From: Reinette Chatre <reinette.chatre@intel.com>
To: Sean Christopherson <seanjc@google.com>
Cc: <isaku.yamahata@intel.com>, <pbonzini@redhat.com>,
<erdemaktas@google.com>, <vkuznets@redhat.com>,
<vannapurve@google.com>, <jmattson@google.com>,
<mlevitsk@redhat.com>, <xiaoyao.li@intel.com>,
<chao.gao@intel.com>, <rick.p.edgecombe@intel.com>,
<yuan.yao@intel.com>, <kvm@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH V9 0/2] KVM: x86: Make bus clock frequency for vAPIC timer configurable
Date: Wed, 10 Jul 2024 10:14:44 -0700 [thread overview]
Message-ID: <c622488e-78e4-4f50-b487-52cdd6490e35@intel.com> (raw)
In-Reply-To: <Zo6r3if6rTERxnwl@google.com>
On 7/10/24 8:42 AM, Sean Christopherson wrote:
> On Fri, Jun 28, 2024, Reinette Chatre wrote:
>> Now that the x86 udelay() utility no longer use cpu_relax(), should ARM
>> and RISC-V's udelay() be modified to match in this regard? I can prepare
>> (unable to test) changes for you to consider on your return.
>
> I don't think so? IIUC, arm64's "yield", used by cpu_relax() doesn't trigger the
> "on spin" exists. Such exist are only triggered by "wfet" and friends.
ah, I see, thank you very much Sean.
Reinette
prev parent reply other threads:[~2024-07-10 17:14 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-12 18:16 Reinette Chatre
2024-06-12 18:16 ` [PATCH V9 1/2] KVM: selftests: Add x86_64 guest udelay() utility Reinette Chatre
2024-06-28 22:46 ` Sean Christopherson
2024-06-12 18:16 ` [PATCH V9 2/2] KVM: selftests: Add test for configure of x86 APIC bus frequency Reinette Chatre
2024-06-28 22:50 ` Sean Christopherson
2024-06-29 0:39 ` VMX Preemption Timer appears to be buggy on SKX, CLX, and ICX Sean Christopherson
2024-07-03 20:14 ` Reinette Chatre
2024-07-03 21:37 ` Reinette Chatre
2024-07-08 5:55 ` Yuan Yao
2026-05-13 1:31 ` Chao Gao
2026-05-14 21:09 ` Sean Christopherson
2026-05-15 6:34 ` Chao Gao
2026-06-04 5:09 ` Jim Mattson
2026-06-04 19:58 ` Sean Christopherson
2026-06-04 21:59 ` Jim Mattson
2026-06-05 2:56 ` Chao Gao
2026-06-05 5:34 ` Jim Mattson
2026-06-05 5:56 ` Chao Gao
2026-06-12 22:51 ` Jim Mattson
2026-06-13 3:03 ` Xiaoyao Li
2024-06-28 22:55 ` [PATCH V9 0/2] KVM: x86: Make bus clock frequency for vAPIC timer configurable Sean Christopherson
2024-06-29 0:10 ` Reinette Chatre
2024-07-10 15:42 ` Sean Christopherson
2024-07-10 17:14 ` Reinette Chatre [this message]
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