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Re: [Xen-devel] [PATCH v3] x86/HVM: Fix teardown ordering in hvm_vcpu_destroy()



On 10/01/17 14:03, Suravee Suthikulpanit wrote:
> The order of destroy function calls in hvm_vcpu_destroy() should be
> the reverse of init calls in hvm_vcpu_initialise().
>
> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>
> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
> Cc: Jan Beulich <jbeulich@xxxxxxxx>
> Cc: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>

Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> and queued.

> ---
> Note: I separate this out from the previously sent AMD SVM AVIC patch
> series since this is a standalone fix.
>
>  xen/arch/x86/hvm/hvm.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c
> index 25dc759..d465596 100644
> --- a/xen/arch/x86/hvm/hvm.c
> +++ b/xen/arch/x86/hvm/hvm.c
> @@ -1610,13 +1610,13 @@ void hvm_vcpu_destroy(struct vcpu *v)
>  
>      free_compat_arg_xlat(v);
>  
> -    tasklet_kill(&v->arch.hvm_vcpu.assert_evtchn_irq_tasklet);
> -    hvm_vcpu_cacheattr_destroy(v);
> +    hvm_funcs.vcpu_destroy(v);
>  
>      if ( is_hvm_vcpu(v) )
>          vlapic_destroy(v);
>  
> -    hvm_funcs.vcpu_destroy(v);
> +    tasklet_kill(&v->arch.hvm_vcpu.assert_evtchn_irq_tasklet);
> +    hvm_vcpu_cacheattr_destroy(v);
>  }
>  
>  void hvm_vcpu_down(struct vcpu *v)


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