Up to now the MAPD ITT_addr had been ignored. We will need it for save/restore. Let's record it in the its_device struct.
Signed-off-by: Eric Auger <[email protected]> --- v3 -> v4: - in vgic_its_cmd_handle_mapd, itt_addr directly is shifted - correct ittaddr bitmask to support 48bit GPA --- virt/kvm/arm/vgic/vgic-its.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c index ddd2780..89a0db7 100644 --- a/virt/kvm/arm/vgic/vgic-its.c +++ b/virt/kvm/arm/vgic/vgic-its.c @@ -103,6 +103,7 @@ struct its_device { /* the head for the list of ITTEs */ struct list_head itt_head; u32 nb_eventid_bits; + gpa_t itt_addr; u32 device_id; }; @@ -553,6 +554,7 @@ static u64 its_cmd_mask_field(u64 *its_cmd, int word, int shift, int size) #define its_cmd_get_id(cmd) its_cmd_mask_field(cmd, 1, 0, 32) #define its_cmd_get_physical_id(cmd) its_cmd_mask_field(cmd, 1, 32, 32) #define its_cmd_get_collection(cmd) its_cmd_mask_field(cmd, 2, 0, 16) +#define its_cmd_get_ittaddr(cmd) its_cmd_mask_field(cmd, 2, 8, 47) #define its_cmd_get_target_addr(cmd) its_cmd_mask_field(cmd, 2, 16, 32) #define its_cmd_get_validbit(cmd) its_cmd_mask_field(cmd, 2, 63, 1) @@ -824,6 +826,7 @@ static int vgic_its_cmd_handle_mapd(struct kvm *kvm, struct vgic_its *its, u32 device_id = its_cmd_get_deviceid(its_cmd); bool valid = its_cmd_get_validbit(its_cmd); u8 nb_eventid_bits = its_cmd_get_size(its_cmd) + 1; + gpa_t itt_addr = its_cmd_get_ittaddr(its_cmd) << 8; struct its_device *device; if (!vgic_its_check_id(its, its->baser_device_table, device_id)) @@ -855,6 +858,7 @@ static int vgic_its_cmd_handle_mapd(struct kvm *kvm, struct vgic_its *its, device->device_id = device_id; device->nb_eventid_bits = nb_eventid_bits; + device->itt_addr = itt_addr; INIT_LIST_HEAD(&device->itt_head); -- 2.5.5 _______________________________________________ kvmarm mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
