linux-kernel - Re: [PATCH v4 00/28] KVM: x86/mmu: TDX post-populate cleanups

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Message-ID: <7d6960714392c013e8f3529da08694a04ca91177.camel@intel.com>
Date: Thu, 30 Oct 2025 23:19:41 +0000
From: "Huang, Kai" <kai.huang@...el.com>
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Subject: Re: [PATCH v4 00/28] KVM: x86/mmu: TDX post-populate cleanups

On Thu, 2025-10-30 at 13:09 -0700, Sean Christopherson wrote:
> Non-x86 folks, as with v3, patches 1 and 2 are likely the only thing of
> interest here.  They make kvm_arch_vcpu_async_ioctl() mandatory and then
> rename it to kvm_arch_vcpu_unlocked_ioctl().
> 
> As for the x86 side...
> 
> Clean up the TDX post-populate paths (and many tangentially related paths) to
> address locking issues between gmem and TDX's post-populate hook[*], and
> within KVM itself (KVM doesn't ensure full mutual exclusivity between paths
> that for all intents and purposes the TDX-Module requires to be serialized).

I pulled this series to local, applied to kvm-x86/next and sanity tested
that booting/destroying two TDs worked fine, so:

Tested-by: Kai Huang <kai.huang@...el.com>