From: Sean Christopherson <seanjc@google.com>
To: Sean Christopherson <seanjc@google.com>,
pbonzini@redhat.com, Kai Huang <kai.huang@intel.com>
Cc: kvm@vger.kernel.org, thomas.lendacky@amd.com, nikunj@amd.com,
bp@alien8.de, isaku.yamahata@intel.com, xiaoyao.li@intel.com,
rick.p.edgecombe@intel.com, chao.gao@intel.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 0/2] Improve KVM_SET_TSC_KHZ handling for CoCo VMs
Date: Mon, 14 Jul 2025 17:23:28 -0700 [thread overview]
Message-ID: <175253196286.1789819.9618704444430239046.b4-ty@google.com> (raw)
In-Reply-To: <cover.1752444335.git.kai.huang@intel.com>
On Mon, 14 Jul 2025 10:20:18 +1200, Kai Huang wrote:
> This series follows Sean's suggestions [1][2] to:
>
> - Reject vCPU scope KVM_SET_TSC_KHZ ioctl for TSC protected vCPU
> - Reject VM scope KVM_SET_TSC_KHZ ioctl when vCPUs have been created
>
> .. in the discussion of SEV-SNP Secure TSC support series.
>
> [...]
Applied patch 2 to kvm-x86 fixes, with a tweaked changelog to call out that
TDX support hasn't yet been released, i.e. that there is no established ABI
to break.
Applied patch 1 to kvm-x86 misc, with tweaked documentation to not imply that
userspace "must" invoke the ioctl. I think this is the last patch I'll throw
into misc for 6.17? So in theory, if it breaks userspace, I can simply
truncate it from the pull request.
[1/2] KVM: x86: Reject KVM_SET_TSC_KHZ VM ioctl when vCPUs have been created
https://github.com/kvm-x86/linux/commit/dcbe5a466c12
[2/2] KVM: x86: Reject KVM_SET_TSC_KHZ vCPU ioctl for TSC protected guest
https://github.com/kvm-x86/linux/commit/e51cf184d90c
--
https://github.com/kvm-x86/linux/tree/next
next prev parent reply other threads:[~2025-07-15 0:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-13 22:20 Kai Huang
2025-07-13 22:20 ` [PATCH v2 1/2] KVM: x86: Reject KVM_SET_TSC_KHZ VM ioctl when vCPUs have been created Kai Huang
2025-07-14 5:43 ` Nikunj A. Dadhania
2025-07-14 8:44 ` Chao Gao
2025-07-13 22:20 ` [PATCH v2 2/2] KVM: x86: Reject KVM_SET_TSC_KHZ vCPU ioctl for TSC protected guest Kai Huang
2025-07-15 0:23 ` Sean Christopherson [this message]
2025-07-15 0:54 ` [PATCH v2 0/2] Improve KVM_SET_TSC_KHZ handling for CoCo VMs Huang, Kai
2025-07-15 14:07 ` Sean Christopherson
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