config ACPI_PRMT
bool "Platform Runtime Mechanism Support"
- depends on EFI && (X86_64 || ARM64)
+ depends on EFI_RUNTIME_WRAPPERS && (X86_64 || ARM64)
default y
help
Platform Runtime Mechanism (PRM) is a firmware interface exposing a
context.static_data_buffer = handler->static_data_buffer_addr;
context.mmio_ranges = module->mmio_info;
- status = efi_call_virt_pointer(handler, handler_addr,
- handler->acpi_param_buffer_addr,
- &context);
+ status = efi_call_acpi_prm_handler(handler->handler_addr,
+ handler->acpi_param_buffer_addr,
+ &context);
if (status == EFI_SUCCESS) {
buffer->prm_status = PRM_HANDLER_SUCCESS;
} else {
u64 *max_size;
int *reset_type;
} QUERY_CAPSULE_CAPS;
+
+ struct {
+ efi_status_t (__efiapi *acpi_prm_handler)(u64, void *);
+ u64 param_buffer_addr;
+ void *context;
+ } ACPI_PRM_HANDLER;
};
struct efi_runtime_work efi_rts_work;
args->QUERY_CAPSULE_CAPS.max_size,
args->QUERY_CAPSULE_CAPS.reset_type);
break;
+ case EFI_ACPI_PRM_HANDLER:
+#ifdef CONFIG_ACPI_PRMT
+ status = arch_efi_call_virt(args, ACPI_PRM_HANDLER.acpi_prm_handler,
+ args->ACPI_PRM_HANDLER.param_buffer_addr,
+ args->ACPI_PRM_HANDLER.context);
+ break;
+#endif
default:
/*
* Ideally, we should never reach here because a caller of this
efi.update_capsule = virt_efi_update_capsule;
efi.query_capsule_caps = virt_efi_query_capsule_caps;
}
+
+#ifdef CONFIG_ACPI_PRMT
+
+efi_status_t
+efi_call_acpi_prm_handler(efi_status_t (__efiapi *handler_addr)(u64, void *),
+ u64 param_buffer_addr, void *context)
+{
+ efi_status_t status;
+
+ if (down_interruptible(&efi_runtime_lock))
+ return EFI_ABORTED;
+ status = efi_queue_work(ACPI_PRM_HANDLER, handler_addr,
+ param_buffer_addr, context);
+ up(&efi_runtime_lock);
+ return status;
+}
+
+#endif
extern unsigned long rci2_table_phys;
+efi_status_t
+efi_call_acpi_prm_handler(efi_status_t (__efiapi *handler_addr)(u64, void *),
+ u64 param_buffer_addr, void *context);
+
/*
* efi_runtime_service() function identifiers.
* "NONE" is used by efi_recover_from_page_fault() to check if the page
EFI_RESET_SYSTEM,
EFI_UPDATE_CAPSULE,
EFI_QUERY_CAPSULE_CAPS,
+ EFI_ACPI_PRM_HANDLER,
};
union efi_rts_args;