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Subject: Re: [RFC 07/19] KVM: s390: introduce AP matrix configuration
 interface
To:     Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc:     linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
        kvm@vger.kernel.org, freude@de.ibm.com, heiko.carstens@de.ibm.com,
        borntraeger@de.ibm.com, cohuck@redhat.com, kwankhede@nvidia.com,
        bjsdjshi@linux.vnet.ibm.com, pbonzini@redhat.com,
        alex.williamson@redhat.com, pmorel@linux.vnet.ibm.com,
        alifm@linux.vnet.ibm.com, mjrosato@linux.vnet.ibm.com,
        qemu-s390x@nongnu.org, jjherne@linux.vnet.ibm.com,
        thuth@redhat.com, pasic@linux.vnet.ibm.com
References: <1507916344-3896-1-git-send-email-akrowiak@linux.vnet.ibm.com>
 <1507916344-3896-8-git-send-email-akrowiak@linux.vnet.ibm.com>
 <20171016111030.1a955866@mschwideX1>
From:   Tony Krowiak <akrowiak@linux.vnet.ibm.com>
Date:   Mon, 16 Oct 2017 12:26:47 -0400
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On 10/16/2017 05:10 AM, Martin Schwidefsky wrote:
> On Fri, 13 Oct 2017 13:38:52 -0400
> Tony Krowiak <akrowiak@linux.vnet.ibm.com> wrote:
>
>> This patch introduces a new compilation unit that will contain
>> all of the data structures and logic for configuring AP adapters,
>> usage domains and control domains for a KVM guest.
>>
>> Signed-off-by: Tony Krowiak <akrowiak@linux.vnet.ibm.com>
>> ---
>>   MAINTAINERS                       |    2 ++
>>   arch/s390/include/asm/ap-config.h |   12 ++++++++++++
>>   arch/s390/kvm/Makefile            |    2 +-
>>   arch/s390/kvm/ap-config.c         |    9 +++++++++
>>   4 files changed, 24 insertions(+), 1 deletions(-)
>>   create mode 100644 arch/s390/include/asm/ap-config.h
>>   create mode 100644 arch/s390/kvm/ap-config.c
>>
>> diff --git a/MAINTAINERS b/MAINTAINERS
>> index 0c8855a..4de0904 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -11721,6 +11721,8 @@ F:	drivers/s390/crypto/ap_matrix_bus.c
>>   F:	drivers/s390/crypto/vfio_ap_matrix_drv.c
>>   F:	drivers/s390/crypto/vfio_ap_matrix_private.h
>>   F:	drivers/s390/crypto/vfio_ap_matrix_ops.c
>> +F:	arch/s390/include/asm/kvm/ap-config.h
>> +F:	arch/s390/kvm/ap-config.c
>>
>>   S390 ZFCP DRIVER
>>   M:	Steffen Maier <maier@linux.vnet.ibm.com>
>> diff --git a/arch/s390/include/asm/ap-config.h b/arch/s390/include/asm/ap-config.h
>> new file mode 100644
>> index 0000000..8491b5f
>> --- /dev/null
>> +++ b/arch/s390/include/asm/ap-config.h
>> @@ -0,0 +1,12 @@
>> +/*
>> + * Adjunct Processor (AP) configuration management for KVM guests
>> + *
>> + * Copyright IBM Corp. 2017
>> + *
>> + * Author(s): Tony Krowiak <akrowia@linux.vnet.ibm.com>
>> + */
>> +
>> +#ifndef _ASM_KVM_AP_CONFIG_H_
>> +#define _ASM_KVM_AP_CONFIG_H_
>> +
>> +#endif /* _ASM_KVM_AP_CONFIG_H_ */
>> diff --git a/arch/s390/kvm/Makefile b/arch/s390/kvm/Makefile
>> index 09a9e6d..0397b9c 100644
>> --- a/arch/s390/kvm/Makefile
>> +++ b/arch/s390/kvm/Makefile
>> @@ -12,6 +12,6 @@ common-objs = $(KVM)/kvm_main.o $(KVM)/eventfd.o  $(KVM)/async_pf.o $(KVM)/irqch
>>   ccflags-y := -Ivirt/kvm -Iarch/s390/kvm
>>
>>   kvm-objs := $(common-objs) kvm-s390.o intercept.o interrupt.o priv.o sigp.o
>> -kvm-objs += diag.o gaccess.o guestdbg.o sthyi.o vsie.o
>> +kvm-objs += diag.o gaccess.o guestdbg.o sthyi.o vsie.o ap-config.o
>>
>>   obj-$(CONFIG_KVM) += kvm.o
>> diff --git a/arch/s390/kvm/ap-config.c b/arch/s390/kvm/ap-config.c
>> new file mode 100644
>> index 0000000..84fdf43
>> --- /dev/null
>> +++ b/arch/s390/kvm/ap-config.c
>> @@ -0,0 +1,9 @@
>> +/*
>> + * Adjunct Processor (AP) configuration management for KVM guests
>> + *
>> + * Copyright IBM Corp. 2017
>> + *
>> + * Author(s): Tony Krowiak <akrowia@linux.vnet.ibm.com>
>> + */
>> +
>> +#include <asm/ap-config.h>
> Another patch that introduces empty files. Please don't do that. Merge
> patch #7 with patch #16. With the dependency in patch #8 on the ap-config.h
> header the new place for the combined patch would be prior to patch #8.
Sounds reasonable, will do.
>


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