linux-kernel - linux-next: manual merge of the kvm-arm tree with the kvm tree

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Message-ID: <20211217151902.2ae43d1f@canb.auug.org.au>
Date:   Fri, 17 Dec 2021 15:19:02 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Christoffer Dall <cdall@...columbia.edu>,
        Marc Zyngier <maz@...nel.org>,
        Paolo Bonzini <pbonzini@...hat.com>, KVM <kvm@...r.kernel.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Quentin Perret <qperret@...gle.com>
Subject: linux-next: manual merge of the kvm-arm tree with the kvm tree

Hi all,

Today's linux-next merge of the kvm-arm tree got a conflict in:

  arch/arm64/kvm/arm.c

between commit:

  27592ae8dbe4 ("KVM: Move wiping of the kvm->vcpus array to common code")

from the kvm tree and commit:

  52b28657ebd7 ("KVM: arm64: pkvm: Unshare guest structs during teardown")

from the kvm-arm tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc arch/arm64/kvm/arm.c
index 7385bbdfdc42,6057f3c5aafe..000000000000
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@@ -179,7 -181,15 +179,9 @@@ void kvm_arch_destroy_vm(struct kvm *kv
  
  	kvm_vgic_destroy(kvm);
  
 -	for (i = 0; i < KVM_MAX_VCPUS; ++i) {
 -		if (kvm->vcpus[i]) {
 -			kvm_vcpu_destroy(kvm->vcpus[i]);
 -			kvm->vcpus[i] = NULL;
 -		}
 -	}
 -	atomic_set(&kvm->online_vcpus, 0);
 +	kvm_destroy_vcpus(kvm);
+ 
+ 	kvm_unshare_hyp(kvm, kvm + 1);
  }
  
  int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)

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