Commit 7333cefe authored by Eric Auger's avatar Eric Auger Committed by Christoffer Dall

KVM: arm64: vgic-its: Interpret MAPD ITT_addr field

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: default avatarEric Auger <eric.auger@redhat.com>
Reviewed-by: default avatarChristoffer Dall <cdall@linaro.org>
Reviewed-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent 0d44cdb6
......@@ -104,6 +104,7 @@ struct its_device {
/* the head for the list of ITTEs */
struct list_head itt_head;
u32 num_eventid_bits;
gpa_t itt_addr;
u32 device_id;
};
......@@ -602,6 +603,7 @@ 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, 44) << 8)
#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)
......@@ -873,6 +875,7 @@ 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 num_eventid_bits = its_cmd_get_size(its_cmd);
gpa_t itt_addr = its_cmd_get_ittaddr(its_cmd);
struct its_device *device;
if (!vgic_its_check_id(its, its->baser_device_table, device_id))
......@@ -904,6 +907,7 @@ static int vgic_its_cmd_handle_mapd(struct kvm *kvm, struct vgic_its *its,
device->device_id = device_id;
device->num_eventid_bits = num_eventid_bits;
device->itt_addr = itt_addr;
INIT_LIST_HEAD(&device->itt_head);
......
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