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KVM: s390/pci: enable zPCI for interpretive execution

Browse source 
Add the necessary code in s390 base, pci and KVM to enable interpretion
 of PCI pasthru.
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Merge tag 'kvm-s390-pci-5.20' into kernelorgnext

KVM: s390/pci: enable zPCI for interpretive execution

Add the necessary code in s390 base, pci and KVM to enable interpretion
of PCI pasthru.
This commit is contained in:
Christian Borntraeger 2022-07-11 11:28:57 +02:00
commit d41b5e0176
32 changed files with 1278 additions and 56 deletions
Download patch file Download diff file Expand all files Collapse all files

3
include/linux/sched/user.h
View file

@ -24,7 +24,8 @@ struct user_struct {
kuid_t uid;
#if defined(CONFIG_PERF_EVENTS) || defined(CONFIG_BPF_SYSCALL) || \
defined(CONFIG_NET) || defined(CONFIG_IO_URING)
defined(CONFIG_NET) || defined(CONFIG_IO_URING) || \
defined(CONFIG_VFIO_PCI_ZDEV_KVM)
atomic_long_t locked_vm;
#endif
#ifdef CONFIG_WATCH_QUEUE

12
include/linux/vfio_pci_core.h
View file

@ -206,15 +206,25 @@ static inline int vfio_pci_igd_init(struct vfio_pci_core_device *vdev)
}
#endif
#ifdef CONFIG_S390
#ifdef CONFIG_VFIO_PCI_ZDEV_KVM
extern int vfio_pci_info_zdev_add_caps(struct vfio_pci_core_device *vdev,
struct vfio_info_cap *caps);
int vfio_pci_zdev_open_device(struct vfio_pci_core_device *vdev);
void vfio_pci_zdev_close_device(struct vfio_pci_core_device *vdev);
#else
static inline int vfio_pci_info_zdev_add_caps(struct vfio_pci_core_device *vdev,
struct vfio_info_cap *caps)
{
return -ENODEV;
}
static inline int vfio_pci_zdev_open_device(struct vfio_pci_core_device *vdev)
{
return 0;
}
static inline void vfio_pci_zdev_close_device(struct vfio_pci_core_device *vdev)
{}
#endif
/* Will be exported for vfio pci drivers usage */