linux-kernel - [RFC 07/19] KVM: s390: introduce AP matrix configuration interface

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Message-Id: <1507916344-3896-8-git-send-email-akrowiak@linux.vnet.ibm.com>
Date:   Fri, 13 Oct 2017 13:38:52 -0400
From:   Tony Krowiak <akrowiak@...ux.vnet.ibm.com>
To:     linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Cc:     freude@...ibm.com, schwidefsky@...ibm.com,
        heiko.carstens@...ibm.com, borntraeger@...ibm.com,
        cohuck@...hat.com, kwankhede@...dia.com,
        bjsdjshi@...ux.vnet.ibm.com, pbonzini@...hat.com,
        alex.williamson@...hat.com, pmorel@...ux.vnet.ibm.com,
        alifm@...ux.vnet.ibm.com, mjrosato@...ux.vnet.ibm.com,
        qemu-s390x@...gnu.org, jjherne@...ux.vnet.ibm.com,
        thuth@...hat.com, pasic@...ux.vnet.ibm.com,
        Tony Krowiak <akrowiak@...ux.vnet.ibm.com>
Subject: [RFC 07/19] KVM: s390: introduce AP matrix configuration interface

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@...ux.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@...ux.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@...ux.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@...ux.vnet.ibm.com>
+ */
+
+#include <asm/ap-config.h>
-- 
1.7.1