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vfio/spapr: Introduce spapr backend and target interface

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Introduce an empty spapr backend which will hold spapr specific
content, currently only prereg_listener and hostwin_list.

Also introduce two spapr specific callbacks add/del_window into
VFIOIOMMUOps. Instantiate a spapr ops with a helper setup_spapr_ops
and assign it to bcontainer->ops.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Zhenzhong Duan 2023-11-02 15:12:42 +08:00 committed by Cédric Le Goater
parent 1eb31f13b2
commit 9b7d38bf5a
2 changed files with 20 additions and 0 deletions
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14
hw/vfio/spapr.c
View File

@ -24,6 +24,10 @@
#include "qapi/error.h" #include "qapi/error.h"
#include "trace.h" #include "trace.h"
typedef struct VFIOSpaprContainer {
VFIOContainer container;
} VFIOSpaprContainer;
static bool vfio_prereg_listener_skipped_section(MemoryRegionSection *section) static bool vfio_prereg_listener_skipped_section(MemoryRegionSection *section)
{ {
if (memory_region_is_iommu(section->mr)) { if (memory_region_is_iommu(section->mr)) {
@ -421,6 +425,14 @@ void vfio_container_del_section_window(VFIOContainer *container,
} }
} }
static VFIOIOMMUOps vfio_iommu_spapr_ops;
static void setup_spapr_ops(VFIOContainerBase *bcontainer)
{
vfio_iommu_spapr_ops = *bcontainer->ops;
bcontainer->ops = &vfio_iommu_spapr_ops;
}
int vfio_spapr_container_init(VFIOContainer *container, Error **errp) int vfio_spapr_container_init(VFIOContainer *container, Error **errp)
{ {
VFIOContainerBase *bcontainer = &container->bcontainer; VFIOContainerBase *bcontainer = &container->bcontainer;
@ -486,6 +498,8 @@ int vfio_spapr_container_init(VFIOContainer *container, Error **errp)
0x1000); 0x1000);
} }
setup_spapr_ops(bcontainer);
return 0; return 0;
listener_unregister_exit: listener_unregister_exit:

6
include/hw/vfio/vfio-container-base.h
View File

@ -101,5 +101,11 @@ struct VFIOIOMMUOps {
int (*set_dirty_page_tracking)(VFIOContainerBase *bcontainer, bool start); int (*set_dirty_page_tracking)(VFIOContainerBase *bcontainer, bool start);
int (*query_dirty_bitmap)(VFIOContainerBase *bcontainer, VFIOBitmap *vbmap, int (*query_dirty_bitmap)(VFIOContainerBase *bcontainer, VFIOBitmap *vbmap,
hwaddr iova, hwaddr size); hwaddr iova, hwaddr size);
/* SPAPR specific */
int (*add_window)(VFIOContainerBase *bcontainer,
MemoryRegionSection *section,
Error **errp);
void (*del_window)(VFIOContainerBase *bcontainer,
MemoryRegionSection *section);
}; };
#endif /* HW_VFIO_VFIO_CONTAINER_BASE_H */ #endif /* HW_VFIO_VFIO_CONTAINER_BASE_H */