linux-next: manual merge of the kvm tree with the tip tree

Commit Message

Stephen Rothwell Oct. 21, 2021, 2:39 a.m. UTC

Hi all,

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

  arch/x86/kvm/x86.c

between commit:

  126fe0401883 ("x86/fpu: Cleanup xstate xcomp_bv initialization")

from the tip tree and commits:

  5ebbc470d7f3 ("KVM: x86: Remove defunct setting of CR0.ET for guests during vCPU create")
  e8f65b9bb483 ("KVM: x86: Remove defunct setting of XCR0 for guest during vCPU create")
  583d369b36a9 ("KVM: x86: Fold fx_init() into kvm_arch_vcpu_create()")

from the kvm 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.

Comments

Borislav Petkov Oct. 21, 2021, 3:32 p.m. UTC | #1

On Thu, Oct 21, 2021 at 01:39:31PM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> Today's linux-next merge of the kvm tree got a conflict in:
> 
>   arch/x86/kvm/x86.c
> 
> between commit:
> 
>   126fe0401883 ("x86/fpu: Cleanup xstate xcomp_bv initialization")
> 
> from the tip tree and commits:
> 
>   5ebbc470d7f3 ("KVM: x86: Remove defunct setting of CR0.ET for guests during vCPU create")
>   e8f65b9bb483 ("KVM: x86: Remove defunct setting of XCR0 for guest during vCPU create")
>   583d369b36a9 ("KVM: x86: Fold fx_init() into kvm_arch_vcpu_create()")
> 
> from the kvm 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/x86/kvm/x86.c
> index 04350680b649,3ea4f6ef2474..000000000000
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@@ -10615,10 -10687,10 +10590,9 @@@ int kvm_arch_vcpu_create(struct kvm_vcp
>   		pr_err("kvm: failed to allocate vcpu's fpu\n");
>   		goto free_user_fpu;
>   	}
>  -	fpstate_init(&vcpu->arch.guest_fpu->state);
>  -	if (boot_cpu_has(X86_FEATURE_XSAVES))
>  -		vcpu->arch.guest_fpu->state.xsave.header.xcomp_bv =
>  -			host_xcr0 | XSTATE_COMPACTION_ENABLED;
>  +
>  +	fpu_init_fpstate_user(vcpu->arch.user_fpu);
>  +	fpu_init_fpstate_user(vcpu->arch.guest_fpu);
> - 	fx_init(vcpu);
>   
>   	vcpu->arch.maxphyaddr = cpuid_query_maxphyaddr(vcpu);
>   	vcpu->arch.reserved_gpa_bits = kvm_vcpu_reserved_gpa_bits_raw(vcpu);

LGTM too, thx Stephen!

Patch

diff --cc arch/x86/kvm/x86.c
index 04350680b649,3ea4f6ef2474..000000000000
--- a/arch/x86/kvm/x86.c