@@ -84,6 +84,8 @@ int gunyah_rm_vm_configure(struct gunyah_rm *rm, u16 vmid,
u32 mem_handle, u64 image_offset, u64 image_size,
u64 dtb_offset, u64 dtb_size);
int gunyah_rm_vm_init(struct gunyah_rm *rm, u16 vmid);
+int gunyah_rm_vm_set_boot_context(struct gunyah_rm *rm, u16 vmid, u8 reg_set,
+ u8 reg_index, u64 value);
struct gunyah_rm_hyp_resource {
u8 type;
@@ -20,6 +20,7 @@
#define GUNYAH_RM_RPC_VM_RESET 0x56000006
#define GUNYAH_RM_RPC_VM_CONFIG_IMAGE 0x56000009
#define GUNYAH_RM_RPC_VM_INIT 0x5600000B
+#define GUNYAH_RM_RPC_VM_SET_BOOT_CONTEXT 0x5600000C
#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
@@ -102,6 +103,15 @@ struct gunyah_rm_vm_config_image_req {
__le64 dtb_size;
} __packed;
+/* Call: VM_SET_BOOT_CONTEXT */
+struct gunyah_rm_vm_set_boot_context_req {
+ __le16 vmid;
+ u8 reg_set;
+ u8 reg_index;
+ __le32 _padding;
+ __le64 value;
+} __packed;
+
/* Call: VM_SET_DEMAND_PAGING */
struct gunyah_rm_vm_set_demand_paging_req {
__le16 vmid;
@@ -435,6 +445,28 @@ int gunyah_rm_vm_init(struct gunyah_rm *rm, u16 vmid)
return gunyah_rm_common_vmid_call(rm, GUNYAH_RM_RPC_VM_INIT, vmid);
}
+/**
+ * gunyah_rm_vm_set_boot_context() - set the initial boot context of the primary vCPU
+ * @rm: Handle to a Gunyah resource manager
+ * @vmid: VM identifier
+ * @reg_set: See &enum gunyah_vm_boot_context_reg
+ * @reg_index: Which register to set; must be 0 for REG_SET_PC
+ * @value: Value to set in the register
+ */
+int gunyah_rm_vm_set_boot_context(struct gunyah_rm *rm, u16 vmid, u8 reg_set,
+ u8 reg_index, u64 value)
+{
+ struct gunyah_rm_vm_set_boot_context_req req_payload = {
+ .vmid = cpu_to_le16(vmid),
+ .reg_set = reg_set,
+ .reg_index = reg_index,
+ .value = cpu_to_le64(value),
+ };
+
+ return gunyah_rm_call(rm, GUNYAH_RM_RPC_VM_SET_BOOT_CONTEXT,
+ &req_payload, sizeof(req_payload), NULL, NULL);
+}
+
/**
* gunyah_rm_get_hyp_resources() - Retrieve hypervisor resources (capabilities) associated with a VM
* @rm: Handle to a Gunyah resource manager
The initial context of a the primary vCPU can be initialized by performing RM RPC calls. Signed-off-by: Elliot Berman <quic_eberman@quicinc.com> --- drivers/virt/gunyah/rsc_mgr.h | 2 ++ drivers/virt/gunyah/rsc_mgr_rpc.c | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 34 insertions(+)