diff --git a/drivers/virt/gunyah/rsc_mgr.h b/drivers/virt/gunyah/rsc_mgr.h index 68d08d3cff02..99c2db18579c 100644 --- a/drivers/virt/gunyah/rsc_mgr.h +++ b/drivers/virt/gunyah/rsc_mgr.h @@ -108,6 +108,18 @@ int gunyah_rm_get_hyp_resources(struct gunyah_rm *rm, u16 vmid, int gunyah_rm_get_vmid(struct gunyah_rm *rm, u16 *vmid); +int gunyah_rm_vm_set_demand_paging(struct gunyah_rm *rm, u16 vmid, u32 count, + struct gunyah_rm_mem_entry *mem_entries); + +enum gunyah_rm_range_id { + GUNYAH_RM_RANGE_ID_IMAGE = 0, + GUNYAH_RM_RANGE_ID_FIRMWARE = 1, +}; + +int gunyah_rm_vm_set_address_layout(struct gunyah_rm *rm, u16 vmid, + enum gunyah_rm_range_id range_id, + u64 base_address, u64 size); + struct gunyah_resource * gunyah_rm_alloc_resource(struct gunyah_rm *rm, struct gunyah_rm_hyp_resource *hyp_resource); diff --git a/drivers/virt/gunyah/rsc_mgr_rpc.c b/drivers/virt/gunyah/rsc_mgr_rpc.c index 99e5a3f1a5bb..dfffcf02ddae 100644 --- a/drivers/virt/gunyah/rsc_mgr_rpc.c +++ b/drivers/virt/gunyah/rsc_mgr_rpc.c @@ -24,6 +24,8 @@ #define GUNYAH_RM_RPC_VM_INIT 0x5600000B #define GUNYAH_RM_RPC_VM_GET_HYP_RESOURCES 0x56000020 #define GUNYAH_RM_RPC_VM_GET_VMID 0x56000024 +#define GUNYAH_RM_RPC_VM_SET_DEMAND_PAGING 0x56000033 +#define GUNYAH_RM_RPC_VM_SET_ADDRESS_LAYOUT 0x56000034 /* clang-format on */ struct gunyah_rm_vm_common_vmid_req { @@ -103,6 +105,23 @@ struct gunyah_rm_vm_config_image_req { __le64 dtb_size; } __packed; +/* Call: VM_SET_DEMAND_PAGING */ +struct gunyah_rm_vm_set_demand_paging_req { + __le16 vmid; + __le16 _padding; + __le32 range_count; + DECLARE_FLEX_ARRAY(struct gunyah_rm_mem_entry, ranges); +} __packed; + +/* Call: VM_SET_ADDRESS_LAYOUT */ +struct gunyah_rm_vm_set_address_layout_req { + __le16 vmid; + __le16 _padding; + __le32 range_id; + __le64 range_base; + __le64 range_size; +} __packed; + /* * Several RM calls take only a VMID as a parameter and give only standard * response back. Deduplicate boilerplate code by using this common call. @@ -494,3 +513,57 @@ int gunyah_rm_get_vmid(struct gunyah_rm *rm, u16 *vmid) return ret; } EXPORT_SYMBOL_GPL(gunyah_rm_get_vmid); + +/** + * gunyah_rm_vm_set_demand_paging() - Enable demand paging of memory regions + * @rm: Handle to a Gunyah resource manager + * @vmid: VMID of the other VM + * @count: Number of demand paged memory regions + * @entries: Array of the regions + */ +int gunyah_rm_vm_set_demand_paging(struct gunyah_rm *rm, u16 vmid, u32 count, + struct gunyah_rm_mem_entry *entries) +{ + struct gunyah_rm_vm_set_demand_paging_req *req __free(kfree) = NULL; + size_t req_size; + + req_size = struct_size(req, ranges, count); + if (req_size == SIZE_MAX) + return -EINVAL; + + req = kzalloc(req_size, GFP_KERNEL); + if (!req) + return -ENOMEM; + + req->vmid = cpu_to_le16(vmid); + req->range_count = cpu_to_le32(count); + memcpy(req->ranges, entries, sizeof(*entries) * count); + + return gunyah_rm_call(rm, GUNYAH_RM_RPC_VM_SET_DEMAND_PAGING, req, + req_size, NULL, NULL); +} +ALLOW_ERROR_INJECTION(gunyah_rm_vm_set_demand_paging, ERRNO); + +/** + * gunyah_rm_vm_set_address_layout() - Set the start address of images + * @rm: Handle to a Gunyah resource manager + * @vmid: VMID of the other VM + * @range_id: Which image to set + * @base_address: Base address + * @size: Size + */ +int gunyah_rm_vm_set_address_layout(struct gunyah_rm *rm, u16 vmid, + enum gunyah_rm_range_id range_id, + u64 base_address, u64 size) +{ + struct gunyah_rm_vm_set_address_layout_req req = { + .vmid = cpu_to_le16(vmid), + .range_id = cpu_to_le32(range_id), + .range_base = cpu_to_le64(base_address), + .range_size = cpu_to_le64(size), + }; + + return gunyah_rm_call(rm, GUNYAH_RM_RPC_VM_SET_ADDRESS_LAYOUT, &req, + sizeof(req), NULL, NULL); +} +ALLOW_ERROR_INJECTION(gunyah_rm_vm_set_address_layout, ERRNO);