Randy,
I need to provide the correction patch rapidly.
Without answer I will propose the patch.
Regards,
Pierre
On 8/16/22 09:55, Pierre Morel wrote:
On 8/16/22 08:04, Randy Dunlap wrote:
Hi--
On 8/15/22 02:43, Pierre Morel wrote:
Thank you Randy for this good catch.
However forcing KVM to be include statically in the kernel when using
VFIO_PCI extensions is not a good solution for us I think.
I suggest we better do something like:
----
diff --git a/arch/s390/include/asm/kvm_host.h
b/arch/s390/include/asm/kvm_host.h
index 6287a843e8bc..1733339cc4eb 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -1038,7 +1038,7 @@ 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
+#if defined(CONFIG_VFIO_PCI_ZDEV_KVM) ||
defined(CONFIG_VFIO_PCI_ZDEV_KVM_MODULE)
This all looks good except for the line above.
It should be:
#if IS_ENABLED(CONFIG_VFIO_PCI_ZDEV_KVM)
Thanks.
Yes, better, thanks.
How do we do? Should I repost it with reported-by you or do you want to
post it?
Pierre
int kvm_s390_pci_register_kvm(struct zpci_dev *zdev, struct kvm *kvm);
void kvm_s390_pci_unregister_kvm(struct zpci_dev *zdev);
#else
diff --git a/drivers/vfio/pci/Kconfig b/drivers/vfio/pci/Kconfig
index f9d0c908e738..bbc375b028ef 100644
--- a/drivers/vfio/pci/Kconfig
+++ b/drivers/vfio/pci/Kconfig
@@ -45,9 +45,9 @@ config VFIO_PCI_IGD
endif
config VFIO_PCI_ZDEV_KVM
- bool "VFIO PCI extensions for s390x KVM passthrough"
+ def_tristate y
+ prompt "VFIO PCI extensions for s390x KVM passthrough"
depends on S390 && KVM
- default y
help
Support s390x-specific extensions to enable support for
enhancements
to KVM passthrough capabilities, such as interpretive
execution of
----
What do you think? It seems to me it solves the problem, what do you
think?
Regards,
Pierre
--
Pierre Morel
IBM Lab Boeblingen
