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vdpa: add asid parameter to vhost_vdpa_dma_map/unmap

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So the caller can choose which ASID is destined.

No need to update the batch functions as they will always be called from
memory listener updates at the moment. Memory listener updates will
always update ASID 0, as it's the passthrough ASID.

All vhost devices's ASID are 0 at this moment.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221215113144.322011-10-eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Eugenio Pérez 2022-12-15 12:31:41 +01:00 • committed by Michael S. Tsirkin
parent 273e0003f0
commit cd831ed5c4
4 changed files with 41 additions and 19 deletions
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14
include/hw/virtio/vhost-vdpa.h
View file

@ -19,6 +19,12 @@
#include "hw/virtio/virtio.h"
#include "standard-headers/linux/vhost_types.h"
/*
* ASID dedicated to map guest's addresses. If SVQ is disabled it maps GPA to
* qemu's IOVA. If SVQ is enabled it maps also the SVQ vring here
*/
#define VHOST_VDPA_GUEST_PA_ASID 0
typedef struct VhostVDPAHostNotifier {
MemoryRegion mr;
void *addr;
@ -29,6 +35,7 @@ typedef struct vhost_vdpa {
int index;
uint32_t msg_type;
bool iotlb_batch_begin_sent;
uint32_t address_space_id;
MemoryListener listener;
struct vhost_vdpa_iova_range iova_range;
uint64_t acked_features;
@ -42,8 +49,9 @@ typedef struct vhost_vdpa {
VhostVDPAHostNotifier notifier[VIRTIO_QUEUE_MAX];
} VhostVDPA;
int vhost_vdpa_dma_map(struct vhost_vdpa *v, hwaddr iova, hwaddr size,
void *vaddr, bool readonly);
int vhost_vdpa_dma_unmap(struct vhost_vdpa *v, hwaddr iova, hwaddr size);
int vhost_vdpa_dma_map(struct vhost_vdpa *v, uint32_t asid, hwaddr iova,
hwaddr size, void *vaddr, bool readonly);
int vhost_vdpa_dma_unmap(struct vhost_vdpa *v, uint32_t asid, hwaddr iova,
hwaddr size);
#endif