Re: [PATCH 6.12.y] KVM: x86: Free vCPUs before freeing VM state

[Sasha Levin <sashal@kernel.org>]

[ Sasha's backport helper bot ]

Hi,

✅ All tests passed successfully. No issues detected.
No action required from the submitter.

The upstream commit SHA1 provided is correct: 17bcd714426386fda741a4bccd96a2870179344b

WARNING: Author mismatch between patch and upstream commit:
Backport author: Kevin Cheng <chengkev@google.com>
Commit author: Sean Christopherson <seanjc@google.com>

Status in newer kernel trees:
6.15.y | Present (exact SHA1)

Note: The patch differs from the upstream commit:
---
1:  17bcd7144263 ! 1:  c2bfc381d88f KVM: x86: Free vCPUs before freeing VM state
    @@ Metadata
      ## Commit message ##
         KVM: x86: Free vCPUs before freeing VM state
     
    +    [ Upstream commit 17bcd714426386fda741a4bccd96a2870179344b ]
    +
         Free vCPUs before freeing any VM state, as both SVM and VMX may access
         VM state when "freeing" a vCPU that is currently "in" L2, i.e. that needs
         to be kicked out of nested guest mode.
    @@ Commit message
         Cc: Kai Huang <kai.huang@intel.com>
         Cc: Isaku Yamahata <isaku.yamahata@intel.com>
         Signed-off-by: Sean Christopherson <seanjc@google.com>
    -    Message-ID: <20250224235542.2562848-2-seanjc@google.com>
    -    Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
    +    Signed-off-by: Kevin Cheng <chengkev@google.com>
     
      ## arch/x86/kvm/x86.c ##
     @@ arch/x86/kvm/x86.c: void kvm_arch_destroy_vm(struct kvm *kvm)

---

Results of testing on various branches:

| Branch                    | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| origin/linux-6.12.y       | Success     | Success    |