linux-kernel - Re: [PATCH v1 0/2] KVM: s390: Tracing APCB changes

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Date:   Fri, 5 Oct 2018 10:44:20 +0200
From:   Cornelia Huck <cohuck@...hat.com>
To:     Pierre Morel <pmorel@...ux.ibm.com>
Cc:     borntraeger@...ibm.com, david@...hat.com,
        linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
        kvm@...r.kernel.org, frankja@...ux.ibm.com, akrowiak@...ux.ibm.com,
        pasic@...ux.ibm.com
Subject: Re: [PATCH v1 0/2] KVM: s390: Tracing APCB changes

On Fri,  5 Oct 2018 10:31:08 +0200
Pierre Morel <pmorel@...ux.ibm.com> wrote:

> In the first patch we define kvm_arch_crypto_set_masks,
> a new function to centralize the setup the APCB masks
> inside the CRYCB SIE satelite and add KVM_EVENT() to
> kvm_arch_crypto_set_masks and kvm_arch_crypto_clear_masks.
> 
> In the second patch we replace the vfio_ap_mdev_copy_masks()
> by the new kvm_arch_crypto_set_masks() function.
> 
> 
> Pierre Morel (2):
>   KVM: s390: Tracing APCB changes
>   s390: vfio-ap: setup APCB mask using KVM dedicated function
> 
>  arch/s390/include/asm/kvm_host.h  |  2 ++
>  arch/s390/kvm/kvm-s390.c          | 41 +++++++++++++++++++++++++++++++++++++++
>  drivers/s390/crypto/vfio_ap_ops.c | 33 +++----------------------------
>  3 files changed, 46 insertions(+), 30 deletions(-)
> 

I like this version better: it moves the mask-setting next to the
mask-clearing, and, as a bonus, adds a trace event for clearing as
well :)