Re: [PATCH v4 0/9] KVM: TDX: Enable VM-DoS Prevention Features for TDX

[Sean Christopherson <seanjc@google.com>]

On Wed, 19 Aug 2026 17:48:54 +0800, Xiaoyao Li wrote:
> This is v4 of the series to enable the Notify VM Exit and Bus Lock VM
> exit for TDX, which fixes the KVM CAP issue related with them and allow
> userspace to actually enable the features.
> 
> Compared to v3, this v4 adds 5 more patches.  The first 8 patches target
> for stable kernels while only the patch 9 doesn't have to.  Patch 1 is a
> single patch to enable Notify VM exit for TDX.  Except patch 6, patch
> 2-7 are mandatory for enabling Bus Lock VM exit for TDX in patch 8.
> 
> [...]

Applied to kvm-x86 vmx, thanks!

[1/9] KVM: TDX: Enable Notify VM exit
      https://github.com/kvm-x86/linux/commit/d93395058c19
[2/9] KVM: TDX: Check if there is valid exit infos based on vp_enter_ret
      https://github.com/kvm-x86/linux/commit/0966c881ea13
[3/9] KVM: TDX: Set bits 31:16 to 0 for the synthesized Exit Reason
      https://github.com/kvm-x86/linux/commit/b43c520b198a
[4/9] KVM: TDX: Don't assume exit_reason[31:16] is all-0 in tdx_to_vmx_exit_reason()
      https://github.com/kvm-x86/linux/commit/bc335ce04408
[5/9] KVM: TDX: Update exit_reason on wait_for_sept_zap return
      https://github.com/kvm-x86/linux/commit/e5f1d62c59ae
[6/9] KVM: VMX: Preserve negative return value in vmx_handle_exit() with bus lock detected
      https://github.com/kvm-x86/linux/commit/cef48693da1e
[7/9] KVM: VMX: Make handle_bus_lock_vmexit() a shared helper
      https://github.com/kvm-x86/linux/commit/326fa2c9b4d3
[8/9] KVM: TDX: Enable Bus Lock VM exit
      https://github.com/kvm-x86/linux/commit/63d196e2e204
[9/9] KVM: VMX: Consolidate the exit handler for VMX and TDX
      https://github.com/kvm-x86/linux/commit/213bbf18f07a

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https://github.com/kvm-x86/linux/tree/next