We have a cross dependency between KVM and VFIO when using
s390 vfio_pci_zdev extensions for PCI passthrough
To be able to keep both subsystem modular we add a registering
hook inside the S390 core code.
This fixes a build problem when VFIO is built-in and KVM is built
as a module.
Reported-by: Randy Dunlap <[email protected]>
Reported-by: kernel test robot <[email protected]>
Reviewed-by: Matthew Rosato <[email protected]>
Reviewed-by: Niklas Schnelle <[email protected]>
Signed-off-by: Pierre Morel <[email protected]>
Fixes: 09340b2fca007 ("KVM: s390: pci: add routines to start/stop interpretive execution")
Cc: <[email protected]>
---
arch/s390/include/asm/kvm_host.h | 17 ++++++-----------
arch/s390/kvm/pci.c | 12 ++++++++----
arch/s390/pci/Makefile | 2 +-
arch/s390/pci/pci_kvm_hook.c | 11 +++++++++++
drivers/vfio/pci/vfio_pci_zdev.c | 8 ++++++--
5 files changed, 32 insertions(+), 18 deletions(-)
create mode 100644 arch/s390/pci/pci_kvm_hook.c
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index f39092e0ceaa..b1e98a9ed152 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -1038,16 +1038,11 @@ static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
#define __KVM_HAVE_ARCH_VM_FREE
void kvm_arch_free_vm(struct kvm *kvm);
-#ifdef CONFIG_VFIO_PCI_ZDEV_KVM
-int kvm_s390_pci_register_kvm(struct zpci_dev *zdev, struct kvm *kvm);
-void kvm_s390_pci_unregister_kvm(struct zpci_dev *zdev);
-#else
-static inline int kvm_s390_pci_register_kvm(struct zpci_dev *dev,
- struct kvm *kvm)
-{
- return -EPERM;
-}
-static inline void kvm_s390_pci_unregister_kvm(struct zpci_dev *dev) {}
-#endif
+struct zpci_kvm_hook {
+ int (*kvm_register)(void *opaque, struct kvm *kvm);
+ void (*kvm_unregister)(void *opaque);
+};
+
+extern struct zpci_kvm_hook zpci_kvm_hook;
#endif
diff --git a/arch/s390/kvm/pci.c b/arch/s390/kvm/pci.c
index 4946fb7757d6..bb8c335d17b9 100644
--- a/arch/s390/kvm/pci.c
+++ b/arch/s390/kvm/pci.c
@@ -431,8 +431,9 @@ static void kvm_s390_pci_dev_release(struct zpci_dev *zdev)
* available, enable them and let userspace indicate whether or not they will
* be used (specify SHM bit to disable).
*/
-int kvm_s390_pci_register_kvm(struct zpci_dev *zdev, struct kvm *kvm)
+static int kvm_s390_pci_register_kvm(void *opaque, struct kvm *kvm)
{
+ struct zpci_dev *zdev = opaque;
int rc;
if (!zdev)
@@ -510,10 +511,10 @@ int kvm_s390_pci_register_kvm(struct zpci_dev *zdev, struct kvm *kvm)
kvm_put_kvm(kvm);
return rc;
}
-EXPORT_SYMBOL_GPL(kvm_s390_pci_register_kvm);
-void kvm_s390_pci_unregister_kvm(struct zpci_dev *zdev)
+static void kvm_s390_pci_unregister_kvm(void *opaque)
{
+ struct zpci_dev *zdev = opaque;
struct kvm *kvm;
if (!zdev)
@@ -566,7 +567,6 @@ void kvm_s390_pci_unregister_kvm(struct zpci_dev *zdev)
kvm_put_kvm(kvm);
}
-EXPORT_SYMBOL_GPL(kvm_s390_pci_unregister_kvm);
void kvm_s390_pci_init_list(struct kvm *kvm)
{
@@ -678,6 +678,8 @@ int kvm_s390_pci_init(void)
spin_lock_init(&aift->gait_lock);
mutex_init(&aift->aift_lock);
+ zpci_kvm_hook.kvm_register = kvm_s390_pci_register_kvm;
+ zpci_kvm_hook.kvm_unregister = kvm_s390_pci_unregister_kvm;
return 0;
}
@@ -685,6 +687,8 @@ int kvm_s390_pci_init(void)
void kvm_s390_pci_exit(void)
{
mutex_destroy(&aift->aift_lock);
+ zpci_kvm_hook.kvm_register = NULL;
+ zpci_kvm_hook.kvm_unregister = NULL;
kfree(aift);
}
diff --git a/arch/s390/pci/Makefile b/arch/s390/pci/Makefile
index bf557a1b789c..5ae31ca9dd44 100644
--- a/arch/s390/pci/Makefile
+++ b/arch/s390/pci/Makefile
@@ -5,5 +5,5 @@
obj-$(CONFIG_PCI) += pci.o pci_irq.o pci_dma.o pci_clp.o pci_sysfs.o \
pci_event.o pci_debug.o pci_insn.o pci_mmio.o \
- pci_bus.o
+ pci_bus.o pci_kvm_hook.o
obj-$(CONFIG_PCI_IOV) += pci_iov.o
diff --git a/arch/s390/pci/pci_kvm_hook.c b/arch/s390/pci/pci_kvm_hook.c
new file mode 100644
index 000000000000..ff34baf50a3e
--- /dev/null
+++ b/arch/s390/pci/pci_kvm_hook.c
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * VFIO ZPCI devices support
+ *
+ * Copyright (C) IBM Corp. 2022. All rights reserved.
+ * Author(s): Pierre Morel <[email protected]>
+ */
+#include <linux/kvm_host.h>
+
+struct zpci_kvm_hook zpci_kvm_hook;
+EXPORT_SYMBOL_GPL(zpci_kvm_hook);
diff --git a/drivers/vfio/pci/vfio_pci_zdev.c b/drivers/vfio/pci/vfio_pci_zdev.c
index e163aa9f6144..0cbdcd14f1c8 100644
--- a/drivers/vfio/pci/vfio_pci_zdev.c
+++ b/drivers/vfio/pci/vfio_pci_zdev.c
@@ -151,7 +151,10 @@ int vfio_pci_zdev_open_device(struct vfio_pci_core_device *vdev)
if (!vdev->vdev.kvm)
return 0;
- return kvm_s390_pci_register_kvm(zdev, vdev->vdev.kvm);
+ if (zpci_kvm_hook.kvm_register)
+ return zpci_kvm_hook.kvm_register(zdev, vdev->vdev.kvm);
+
+ return -ENOENT;
}
void vfio_pci_zdev_close_device(struct vfio_pci_core_device *vdev)
@@ -161,5 +164,6 @@ void vfio_pci_zdev_close_device(struct vfio_pci_core_device *vdev)
if (!zdev || !vdev->vdev.kvm)
return;
- kvm_s390_pci_unregister_kvm(zdev);
+ if (zpci_kvm_hook.kvm_unregister)
+ zpci_kvm_hook.kvm_unregister(zdev);
}
--
2.31.1
On 8/19/22 05:29, Pierre Morel wrote:
> We have a cross dependency between KVM and VFIO when using
> s390 vfio_pci_zdev extensions for PCI passthrough
> To be able to keep both subsystem modular we add a registering
> hook inside the S390 core code.
>
> This fixes a build problem when VFIO is built-in and KVM is built
> as a module.
>
> Reported-by: Randy Dunlap <[email protected]>
> Reported-by: kernel test robot <[email protected]>
> Reviewed-by: Matthew Rosato <[email protected]>
> Reviewed-by: Niklas Schnelle <[email protected]>
> Signed-off-by: Pierre Morel <[email protected]>
> Fixes: 09340b2fca007 ("KVM: s390: pci: add routines to start/stop interpretive execution")
> Cc: <[email protected]>
Acked-by: Randy Dunlap <[email protected]> # build-tested
Thanks.
> ---
> arch/s390/include/asm/kvm_host.h | 17 ++++++-----------
> arch/s390/kvm/pci.c | 12 ++++++++----
> arch/s390/pci/Makefile | 2 +-
> arch/s390/pci/pci_kvm_hook.c | 11 +++++++++++
> drivers/vfio/pci/vfio_pci_zdev.c | 8 ++++++--
> 5 files changed, 32 insertions(+), 18 deletions(-)
> create mode 100644 arch/s390/pci/pci_kvm_hook.c
>
> diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
> index f39092e0ceaa..b1e98a9ed152 100644
> --- a/arch/s390/include/asm/kvm_host.h
> +++ b/arch/s390/include/asm/kvm_host.h
> @@ -1038,16 +1038,11 @@ static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
> #define __KVM_HAVE_ARCH_VM_FREE
> void kvm_arch_free_vm(struct kvm *kvm);
>
> -#ifdef CONFIG_VFIO_PCI_ZDEV_KVM
> -int kvm_s390_pci_register_kvm(struct zpci_dev *zdev, struct kvm *kvm);
> -void kvm_s390_pci_unregister_kvm(struct zpci_dev *zdev);
> -#else
> -static inline int kvm_s390_pci_register_kvm(struct zpci_dev *dev,
> - struct kvm *kvm)
> -{
> - return -EPERM;
> -}
> -static inline void kvm_s390_pci_unregister_kvm(struct zpci_dev *dev) {}
> -#endif
> +struct zpci_kvm_hook {
> + int (*kvm_register)(void *opaque, struct kvm *kvm);
> + void (*kvm_unregister)(void *opaque);
> +};
> +
> +extern struct zpci_kvm_hook zpci_kvm_hook;
>
> #endif
> diff --git a/arch/s390/kvm/pci.c b/arch/s390/kvm/pci.c
> index 4946fb7757d6..bb8c335d17b9 100644
> --- a/arch/s390/kvm/pci.c
> +++ b/arch/s390/kvm/pci.c
> @@ -431,8 +431,9 @@ static void kvm_s390_pci_dev_release(struct zpci_dev *zdev)
> * available, enable them and let userspace indicate whether or not they will
> * be used (specify SHM bit to disable).
> */
> -int kvm_s390_pci_register_kvm(struct zpci_dev *zdev, struct kvm *kvm)
> +static int kvm_s390_pci_register_kvm(void *opaque, struct kvm *kvm)
> {
> + struct zpci_dev *zdev = opaque;
> int rc;
>
> if (!zdev)
> @@ -510,10 +511,10 @@ int kvm_s390_pci_register_kvm(struct zpci_dev *zdev, struct kvm *kvm)
> kvm_put_kvm(kvm);
> return rc;
> }
> -EXPORT_SYMBOL_GPL(kvm_s390_pci_register_kvm);
>
> -void kvm_s390_pci_unregister_kvm(struct zpci_dev *zdev)
> +static void kvm_s390_pci_unregister_kvm(void *opaque)
> {
> + struct zpci_dev *zdev = opaque;
> struct kvm *kvm;
>
> if (!zdev)
> @@ -566,7 +567,6 @@ void kvm_s390_pci_unregister_kvm(struct zpci_dev *zdev)
>
> kvm_put_kvm(kvm);
> }
> -EXPORT_SYMBOL_GPL(kvm_s390_pci_unregister_kvm);
>
> void kvm_s390_pci_init_list(struct kvm *kvm)
> {
> @@ -678,6 +678,8 @@ int kvm_s390_pci_init(void)
>
> spin_lock_init(&aift->gait_lock);
> mutex_init(&aift->aift_lock);
> + zpci_kvm_hook.kvm_register = kvm_s390_pci_register_kvm;
> + zpci_kvm_hook.kvm_unregister = kvm_s390_pci_unregister_kvm;
>
> return 0;
> }
> @@ -685,6 +687,8 @@ int kvm_s390_pci_init(void)
> void kvm_s390_pci_exit(void)
> {
> mutex_destroy(&aift->aift_lock);
> + zpci_kvm_hook.kvm_register = NULL;
> + zpci_kvm_hook.kvm_unregister = NULL;
>
> kfree(aift);
> }
> diff --git a/arch/s390/pci/Makefile b/arch/s390/pci/Makefile
> index bf557a1b789c..5ae31ca9dd44 100644
> --- a/arch/s390/pci/Makefile
> +++ b/arch/s390/pci/Makefile
> @@ -5,5 +5,5 @@
>
> obj-$(CONFIG_PCI) += pci.o pci_irq.o pci_dma.o pci_clp.o pci_sysfs.o \
> pci_event.o pci_debug.o pci_insn.o pci_mmio.o \
> - pci_bus.o
> + pci_bus.o pci_kvm_hook.o
> obj-$(CONFIG_PCI_IOV) += pci_iov.o
> diff --git a/arch/s390/pci/pci_kvm_hook.c b/arch/s390/pci/pci_kvm_hook.c
> new file mode 100644
> index 000000000000..ff34baf50a3e
> --- /dev/null
> +++ b/arch/s390/pci/pci_kvm_hook.c
> @@ -0,0 +1,11 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * VFIO ZPCI devices support
> + *
> + * Copyright (C) IBM Corp. 2022. All rights reserved.
> + * Author(s): Pierre Morel <[email protected]>
> + */
> +#include <linux/kvm_host.h>
> +
> +struct zpci_kvm_hook zpci_kvm_hook;
> +EXPORT_SYMBOL_GPL(zpci_kvm_hook);
> diff --git a/drivers/vfio/pci/vfio_pci_zdev.c b/drivers/vfio/pci/vfio_pci_zdev.c
> index e163aa9f6144..0cbdcd14f1c8 100644
> --- a/drivers/vfio/pci/vfio_pci_zdev.c
> +++ b/drivers/vfio/pci/vfio_pci_zdev.c
> @@ -151,7 +151,10 @@ int vfio_pci_zdev_open_device(struct vfio_pci_core_device *vdev)
> if (!vdev->vdev.kvm)
> return 0;
>
> - return kvm_s390_pci_register_kvm(zdev, vdev->vdev.kvm);
> + if (zpci_kvm_hook.kvm_register)
> + return zpci_kvm_hook.kvm_register(zdev, vdev->vdev.kvm);
> +
> + return -ENOENT;
> }
>
> void vfio_pci_zdev_close_device(struct vfio_pci_core_device *vdev)
> @@ -161,5 +164,6 @@ void vfio_pci_zdev_close_device(struct vfio_pci_core_device *vdev)
> if (!zdev || !vdev->vdev.kvm)
> return;
>
> - kvm_s390_pci_unregister_kvm(zdev);
> + if (zpci_kvm_hook.kvm_unregister)
> + zpci_kvm_hook.kvm_unregister(zdev);
> }
--
~Randy
On 8/19/22 23:10, Randy Dunlap wrote:
>
>
> On 8/19/22 05:29, Pierre Morel wrote:
>> We have a cross dependency between KVM and VFIO when using
>> s390 vfio_pci_zdev extensions for PCI passthrough
>> To be able to keep both subsystem modular we add a registering
>> hook inside the S390 core code.
>>
>> This fixes a build problem when VFIO is built-in and KVM is built
>> as a module.
>>
>> Reported-by: Randy Dunlap <[email protected]>
>> Reported-by: kernel test robot <[email protected]>
>> Reviewed-by: Matthew Rosato <[email protected]>
>> Reviewed-by: Niklas Schnelle <[email protected]>
>> Signed-off-by: Pierre Morel <[email protected]>
>> Fixes: 09340b2fca007 ("KVM: s390: pci: add routines to start/stop interpretive execution")
>> Cc: <[email protected]>
>
> Acked-by: Randy Dunlap <[email protected]> # build-tested
>
> Thanks.
Thanks Randy,
Regards,
Pierre
>
>> ---
>> arch/s390/include/asm/kvm_host.h | 17 ++++++-----------
>> arch/s390/kvm/pci.c | 12 ++++++++----
>> arch/s390/pci/Makefile | 2 +-
>> arch/s390/pci/pci_kvm_hook.c | 11 +++++++++++
>> drivers/vfio/pci/vfio_pci_zdev.c | 8 ++++++--
>> 5 files changed, 32 insertions(+), 18 deletions(-)
>> create mode 100644 arch/s390/pci/pci_kvm_hook.c
>>
>> diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
>> index f39092e0ceaa..b1e98a9ed152 100644
>> --- a/arch/s390/include/asm/kvm_host.h
>> +++ b/arch/s390/include/asm/kvm_host.h
>> @@ -1038,16 +1038,11 @@ static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
>> #define __KVM_HAVE_ARCH_VM_FREE
>> void kvm_arch_free_vm(struct kvm *kvm);
>>
>> -#ifdef CONFIG_VFIO_PCI_ZDEV_KVM
>> -int kvm_s390_pci_register_kvm(struct zpci_dev *zdev, struct kvm *kvm);
>> -void kvm_s390_pci_unregister_kvm(struct zpci_dev *zdev);
>> -#else
>> -static inline int kvm_s390_pci_register_kvm(struct zpci_dev *dev,
>> - struct kvm *kvm)
>> -{
>> - return -EPERM;
>> -}
>> -static inline void kvm_s390_pci_unregister_kvm(struct zpci_dev *dev) {}
>> -#endif
>> +struct zpci_kvm_hook {
>> + int (*kvm_register)(void *opaque, struct kvm *kvm);
>> + void (*kvm_unregister)(void *opaque);
>> +};
>> +
>> +extern struct zpci_kvm_hook zpci_kvm_hook;
>>
>> #endif
>> diff --git a/arch/s390/kvm/pci.c b/arch/s390/kvm/pci.c
>> index 4946fb7757d6..bb8c335d17b9 100644
>> --- a/arch/s390/kvm/pci.c
>> +++ b/arch/s390/kvm/pci.c
>> @@ -431,8 +431,9 @@ static void kvm_s390_pci_dev_release(struct zpci_dev *zdev)
>> * available, enable them and let userspace indicate whether or not they will
>> * be used (specify SHM bit to disable).
>> */
>> -int kvm_s390_pci_register_kvm(struct zpci_dev *zdev, struct kvm *kvm)
>> +static int kvm_s390_pci_register_kvm(void *opaque, struct kvm *kvm)
>> {
>> + struct zpci_dev *zdev = opaque;
>> int rc;
>>
>> if (!zdev)
>> @@ -510,10 +511,10 @@ int kvm_s390_pci_register_kvm(struct zpci_dev *zdev, struct kvm *kvm)
>> kvm_put_kvm(kvm);
>> return rc;
>> }
>> -EXPORT_SYMBOL_GPL(kvm_s390_pci_register_kvm);
>>
>> -void kvm_s390_pci_unregister_kvm(struct zpci_dev *zdev)
>> +static void kvm_s390_pci_unregister_kvm(void *opaque)
>> {
>> + struct zpci_dev *zdev = opaque;
>> struct kvm *kvm;
>>
>> if (!zdev)
>> @@ -566,7 +567,6 @@ void kvm_s390_pci_unregister_kvm(struct zpci_dev *zdev)
>>
>> kvm_put_kvm(kvm);
>> }
>> -EXPORT_SYMBOL_GPL(kvm_s390_pci_unregister_kvm);
>>
>> void kvm_s390_pci_init_list(struct kvm *kvm)
>> {
>> @@ -678,6 +678,8 @@ int kvm_s390_pci_init(void)
>>
>> spin_lock_init(&aift->gait_lock);
>> mutex_init(&aift->aift_lock);
>> + zpci_kvm_hook.kvm_register = kvm_s390_pci_register_kvm;
>> + zpci_kvm_hook.kvm_unregister = kvm_s390_pci_unregister_kvm;
>>
>> return 0;
>> }
>> @@ -685,6 +687,8 @@ int kvm_s390_pci_init(void)
>> void kvm_s390_pci_exit(void)
>> {
>> mutex_destroy(&aift->aift_lock);
>> + zpci_kvm_hook.kvm_register = NULL;
>> + zpci_kvm_hook.kvm_unregister = NULL;
>>
>> kfree(aift);
>> }
>> diff --git a/arch/s390/pci/Makefile b/arch/s390/pci/Makefile
>> index bf557a1b789c..5ae31ca9dd44 100644
>> --- a/arch/s390/pci/Makefile
>> +++ b/arch/s390/pci/Makefile
>> @@ -5,5 +5,5 @@
>>
>> obj-$(CONFIG_PCI) += pci.o pci_irq.o pci_dma.o pci_clp.o pci_sysfs.o \
>> pci_event.o pci_debug.o pci_insn.o pci_mmio.o \
>> - pci_bus.o
>> + pci_bus.o pci_kvm_hook.o
>> obj-$(CONFIG_PCI_IOV) += pci_iov.o
>> diff --git a/arch/s390/pci/pci_kvm_hook.c b/arch/s390/pci/pci_kvm_hook.c
>> new file mode 100644
>> index 000000000000..ff34baf50a3e
>> --- /dev/null
>> +++ b/arch/s390/pci/pci_kvm_hook.c
>> @@ -0,0 +1,11 @@
>> +// SPDX-License-Identifier: GPL-2.0-only
>> +/*
>> + * VFIO ZPCI devices support
>> + *
>> + * Copyright (C) IBM Corp. 2022. All rights reserved.
>> + * Author(s): Pierre Morel <[email protected]>
>> + */
>> +#include <linux/kvm_host.h>
>> +
>> +struct zpci_kvm_hook zpci_kvm_hook;
>> +EXPORT_SYMBOL_GPL(zpci_kvm_hook);
>> diff --git a/drivers/vfio/pci/vfio_pci_zdev.c b/drivers/vfio/pci/vfio_pci_zdev.c
>> index e163aa9f6144..0cbdcd14f1c8 100644
>> --- a/drivers/vfio/pci/vfio_pci_zdev.c
>> +++ b/drivers/vfio/pci/vfio_pci_zdev.c
>> @@ -151,7 +151,10 @@ int vfio_pci_zdev_open_device(struct vfio_pci_core_device *vdev)
>> if (!vdev->vdev.kvm)
>> return 0;
>>
>> - return kvm_s390_pci_register_kvm(zdev, vdev->vdev.kvm);
>> + if (zpci_kvm_hook.kvm_register)
>> + return zpci_kvm_hook.kvm_register(zdev, vdev->vdev.kvm);
>> +
>> + return -ENOENT;
>> }
>>
>> void vfio_pci_zdev_close_device(struct vfio_pci_core_device *vdev)
>> @@ -161,5 +164,6 @@ void vfio_pci_zdev_close_device(struct vfio_pci_core_device *vdev)
>> if (!zdev || !vdev->vdev.kvm)
>> return;
>>
>> - kvm_s390_pci_unregister_kvm(zdev);
>> + if (zpci_kvm_hook.kvm_unregister)
>> + zpci_kvm_hook.kvm_unregister(zdev);
>> }
>
--
Pierre Morel
IBM Lab Boeblingen
On 8/19/22 14:29, Pierre Morel wrote:
> We have a cross dependency between KVM and VFIO when using
> s390 vfio_pci_zdev extensions for PCI passthrough
> To be able to keep both subsystem modular we add a registering
> hook inside the S390 core code.
>
> This fixes a build problem when VFIO is built-in and KVM is built
> as a module.
>
> Reported-by: Randy Dunlap <[email protected]>
> Reported-by: kernel test robot <[email protected]>
> Reviewed-by: Matthew Rosato <[email protected]>
> Reviewed-by: Niklas Schnelle <[email protected]>
> Signed-off-by: Pierre Morel <[email protected]>
> Fixes: 09340b2fca007 ("KVM: s390: pci: add routines to start/stop interpretive execution")
> Cc: <[email protected]>
Acked-by: Janosch Frank <[email protected]>
@Niklas @Matt: Since the patches that introduced the PCI interpretation
went via the KVM tree I'll also move this patch via the KVM tree.
On Tue, 2022-08-23 at 09:25 +0200, Janosch Frank wrote:
> On 8/19/22 14:29, Pierre Morel wrote:
> > We have a cross dependency between KVM and VFIO when using
> > s390 vfio_pci_zdev extensions for PCI passthrough
> > To be able to keep both subsystem modular we add a registering
> > hook inside the S390 core code.
> >
> > This fixes a build problem when VFIO is built-in and KVM is built
> > as a module.
> >
> > Reported-by: Randy Dunlap <[email protected]>
> > Reported-by: kernel test robot <[email protected]>
> > Reviewed-by: Matthew Rosato <[email protected]>
> > Reviewed-by: Niklas Schnelle <[email protected]>
> > Signed-off-by: Pierre Morel <[email protected]>
> > Fixes: 09340b2fca007 ("KVM: s390: pci: add routines to start/stop interpretive execution")
> > Cc: <[email protected]>
>
> Acked-by: Janosch Frank <[email protected]>
>
> @Niklas @Matt: Since the patches that introduced the PCI interpretation
> went via the KVM tree I'll also move this patch via the KVM tree.
Sounds good, thanks.