xen: rename dom0_op to platform_op

The dom0_op hypercall has been renamed to platform_op since Xen 3.2,
which is ancient, and modern upstream Linux kernels cannot run as dom0
and it anymore anyway.

Signed-off-by: Stefano Stabellini <[e-mail]>
Reviewed-by: Boris Ostrovsky <[e-mail]>

arch/x86/include/asm/xen/hypercall.h

···
 }
 
 static inline int
-HYPERVISOR_dom0_op(struct xen_platform_op *platform_op)
+HYPERVISOR_platform_op(struct xen_platform_op *op)
 {
-	platform_op->interface_version = XENPF_INTERFACE_VERSION;
-	return _hypercall1(int, dom0_op, platform_op);
+	op->interface_version = XENPF_INTERFACE_VERSION;
+	return _hypercall1(int, platform_op, op);
 }
 
 static inline int

arch/x86/xen/apic.c

···
 	if (reg != APIC_ID)
 		return 0;
 
-	ret = HYPERVISOR_dom0_op(&op);
+	ret = HYPERVISOR_platform_op(&op);
 	if (ret)
 		return 0;
 

arch/x86/xen/enlighten.c

···
 
 	set_xen_guest_handle(op.u.set_pminfo.pdc, buf);
 
-	if ((HYPERVISOR_dom0_op(&op) == 0) &&
+	if ((HYPERVISOR_platform_op(&op) == 0) &&
 	    (buf[2] & (ACPI_PDC_C_C1_FFH | ACPI_PDC_C_C2C3_FFH))) {
 		cpuid_leaf5_ecx_val = cx;
 		cpuid_leaf5_edx_val = dx;
···
 		info->params.length = sizeof(info->params);
 		set_xen_guest_handle(op.u.firmware_info.u.disk_info.edd_params,
 				     &info->params);
-		ret = HYPERVISOR_dom0_op(&op);
+		ret = HYPERVISOR_platform_op(&op);
 		if (ret)
 			break;
 
···
 	op.u.firmware_info.type = XEN_FW_DISK_MBR_SIGNATURE;
 	for (nr = 0; nr < EDD_MBR_SIG_MAX; nr++) {
 		op.u.firmware_info.index = nr;
-		ret = HYPERVISOR_dom0_op(&op);
+		ret = HYPERVISOR_platform_op(&op);
 		if (ret)
 			break;
 		mbr_signature[nr] = op.u.firmware_info.u.disk_mbr_signature.mbr_signature;
···
 		xen_start_info->console.domU.mfn = 0;
 		xen_start_info->console.domU.evtchn = 0;
 
-		if (HYPERVISOR_dom0_op(&op) == 0)
+		if (HYPERVISOR_platform_op(&op) == 0)
 			boot_params.kbd_status = op.u.firmware_info.u.kbd_shift_flags;
 
 		/* Make sure ACS will be enabled */

arch/x86/xen/time.c

···
 	op.u.settime.nsecs = now.tv_nsec;
 	op.u.settime.system_time = xen_clocksource_read();
 
-	(void)HYPERVISOR_dom0_op(&op);
+	(void)HYPERVISOR_platform_op(&op);
 
 	/*
 	 * Move the next drift compensation time 11 minutes

drivers/xen/acpi.c

···
 		 bits, val_a, val_b))
 		return -1;
 
-	HYPERVISOR_dom0_op(&op);
+	HYPERVISOR_platform_op(&op);
 	return 1;
 }
 

drivers/xen/efi.c

···
 {
 	struct xen_platform_op op = INIT_EFI_OP(get_time);
 
-	if (HYPERVISOR_dom0_op(&op) < 0)
+	if (HYPERVISOR_platform_op(&op) < 0)
 		return EFI_UNSUPPORTED;
 
 	if (tm) {
···
 	BUILD_BUG_ON(sizeof(*tm) != sizeof(efi_data(op).u.set_time));
 	memcpy(&efi_data(op).u.set_time, tm, sizeof(*tm));
 
-	if (HYPERVISOR_dom0_op(&op) < 0)
+	if (HYPERVISOR_platform_op(&op) < 0)
 		return EFI_UNSUPPORTED;
 
 	return efi_data(op).status;
···
 {
 	struct xen_platform_op op = INIT_EFI_OP(get_wakeup_time);
 
-	if (HYPERVISOR_dom0_op(&op) < 0)
+	if (HYPERVISOR_platform_op(&op) < 0)
 		return EFI_UNSUPPORTED;
 
 	if (tm) {
···
 	else
 		efi_data(op).misc |= XEN_EFI_SET_WAKEUP_TIME_ENABLE_ONLY;
 
-	if (HYPERVISOR_dom0_op(&op) < 0)
+	if (HYPERVISOR_platform_op(&op) < 0)
 		return EFI_UNSUPPORTED;
 
 	return efi_data(op).status;
···
 	efi_data(op).u.get_variable.size = *data_size;
 	set_xen_guest_handle(efi_data(op).u.get_variable.data, data);
 
-	if (HYPERVISOR_dom0_op(&op) < 0)
+	if (HYPERVISOR_platform_op(&op) < 0)
 		return EFI_UNSUPPORTED;
 
 	*data_size = efi_data(op).u.get_variable.size;
···
 	memcpy(&efi_data(op).u.get_next_variable_name.vendor_guid, vendor,
 	       sizeof(*vendor));
 
-	if (HYPERVISOR_dom0_op(&op) < 0)
+	if (HYPERVISOR_platform_op(&op) < 0)
 		return EFI_UNSUPPORTED;
 
 	*name_size = efi_data(op).u.get_next_variable_name.size;
···
 	efi_data(op).u.set_variable.size = data_size;
 	set_xen_guest_handle(efi_data(op).u.set_variable.data, data);
 
-	if (HYPERVISOR_dom0_op(&op) < 0)
+	if (HYPERVISOR_platform_op(&op) < 0)
 		return EFI_UNSUPPORTED;
 
 	return efi_data(op).status;
···
 
 	efi_data(op).u.query_variable_info.attr = attr;
 
-	if (HYPERVISOR_dom0_op(&op) < 0)
+	if (HYPERVISOR_platform_op(&op) < 0)
 		return EFI_UNSUPPORTED;
 
 	*storage_space = efi_data(op).u.query_variable_info.max_store_size;
···
 {
 	struct xen_platform_op op = INIT_EFI_OP(get_next_high_monotonic_count);
 
-	if (HYPERVISOR_dom0_op(&op) < 0)
+	if (HYPERVISOR_platform_op(&op) < 0)
 		return EFI_UNSUPPORTED;
 
 	*count = efi_data(op).misc;
···
 	efi_data(op).u.update_capsule.capsule_count = count;
 	efi_data(op).u.update_capsule.sg_list = sg_list;
 
-	if (HYPERVISOR_dom0_op(&op) < 0)
+	if (HYPERVISOR_platform_op(&op) < 0)
 		return EFI_UNSUPPORTED;
 
 	return efi_data(op).status;
···
 					capsules);
 	efi_data(op).u.query_capsule_capabilities.capsule_count = count;
 
-	if (HYPERVISOR_dom0_op(&op) < 0)
+	if (HYPERVISOR_platform_op(&op) < 0)
 		return EFI_UNSUPPORTED;
 
 	*max_size = efi_data(op).u.query_capsule_capabilities.max_capsule_size;
···
 	};
 	union xenpf_efi_info *info = &op.u.firmware_info.u.efi_info;
 
-	if (!xen_initial_domain() || HYPERVISOR_dom0_op(&op) < 0)
+	if (!xen_initial_domain() || HYPERVISOR_platform_op(&op) < 0)
 		return NULL;
 
 	/* Here we know that Xen runs on EFI platform. */
···
 	info->vendor.bufsz = sizeof(vendor);
 	set_xen_guest_handle(info->vendor.name, vendor);
 
-	if (HYPERVISOR_dom0_op(&op) == 0) {
+	if (HYPERVISOR_platform_op(&op) == 0) {
 		efi_systab_xen.fw_vendor = __pa_symbol(vendor);
 		efi_systab_xen.fw_revision = info->vendor.revision;
 	} else
···
 	op.u.firmware_info.type = XEN_FW_EFI_INFO;
 	op.u.firmware_info.index = XEN_FW_EFI_VERSION;
 
-	if (HYPERVISOR_dom0_op(&op) == 0)
+	if (HYPERVISOR_platform_op(&op) == 0)
 		efi_systab_xen.hdr.revision = info->version;
 
 	op.cmd = XENPF_firmware_info;
 	op.u.firmware_info.type = XEN_FW_EFI_INFO;
 	op.u.firmware_info.index = XEN_FW_EFI_RT_VERSION;
 
-	if (HYPERVISOR_dom0_op(&op) == 0)
+	if (HYPERVISOR_platform_op(&op) == 0)
 		efi.runtime_version = info->version;
 
 	return &efi_systab_xen;

drivers/xen/pcpu.c

···
 		.u.cpu_ol.cpuid		= cpu_id,
 	};
 
-	return HYPERVISOR_dom0_op(&op);
+	return HYPERVISOR_platform_op(&op);
 }
 
 static int xen_pcpu_up(uint32_t cpu_id)
···
 		.u.cpu_ol.cpuid		= cpu_id,
 	};
 
-	return HYPERVISOR_dom0_op(&op);
+	return HYPERVISOR_platform_op(&op);
 }
 
 static ssize_t show_online(struct device *dev,
···
 		.u.pcpu_info.xen_cpuid = cpu,
 	};
 
-	ret = HYPERVISOR_dom0_op(&op);
+	ret = HYPERVISOR_platform_op(&op);
 	if (ret)
 		return ret;
 
···
 	op.cmd = XENPF_get_cpuinfo;
 	while (cpu_id <= max_id) {
 		op.u.pcpu_info.xen_cpuid = cpu_id;
-		if (HYPERVISOR_dom0_op(&op)) {
+		if (HYPERVISOR_platform_op(&op)) {
 			cpu_id++;
 			continue;
 		}

drivers/xen/xen-acpi-cpuhotplug.c

···
 	op.u.cpu_add.acpi_id = pr->acpi_id;
 	op.u.cpu_add.pxm = pxm;
 
-	cpu_id = HYPERVISOR_dom0_op(&op);
+	cpu_id = HYPERVISOR_platform_op(&op);
 	if (cpu_id < 0)
 		pr_err(PREFIX "Failed to hotadd CPU for acpi_id %d\n",
 				pr->acpi_id);

drivers/xen/xen-acpi-pad.c

···
 	op.u.core_parking.type = XEN_CORE_PARKING_SET;
 	op.u.core_parking.idle_nums = idle_nums;
 
-	return HYPERVISOR_dom0_op(&op);
+	return HYPERVISOR_platform_op(&op);
 }
 
 static int xen_acpi_pad_idle_cpus_num(void)
···
 	op.cmd = XENPF_core_parking;
 	op.u.core_parking.type = XEN_CORE_PARKING_GET;
 
-	return HYPERVISOR_dom0_op(&op)
+	return HYPERVISOR_platform_op(&op)
 	       ?: op.u.core_parking.idle_nums;
 }
 

drivers/xen/xen-acpi-processor.c

···
 	set_xen_guest_handle(op.u.set_pminfo.power.states, dst_cx_states);
 
 	if (!no_hypercall)
-		ret = HYPERVISOR_dom0_op(&op);
+		ret = HYPERVISOR_platform_op(&op);
 
 	if (!ret) {
 		pr_debug("ACPI CPU%u - C-states uploaded.\n", _pr->acpi_id);
···
 	}
 
 	if (!no_hypercall)
-		ret = HYPERVISOR_dom0_op(&op);
+		ret = HYPERVISOR_platform_op(&op);
 
 	if (!ret) {
 		struct acpi_processor_performance *perf;
···
 	info = &op.u.pcpu_info;
 	info->xen_cpuid = 0;
 
-	ret = HYPERVISOR_dom0_op(&op);
+	ret = HYPERVISOR_platform_op(&op);
 	if (ret)
 		return NR_CPUS;
 
···
 	last_cpu = op.u.pcpu_info.max_present;
 	for (i = 0; i <= last_cpu; i++) {
 		info->xen_cpuid = i;
-		ret = HYPERVISOR_dom0_op(&op);
+		ret = HYPERVISOR_platform_op(&op);
 		if (ret)
 			continue;
 		max_acpi_id = max(info->acpi_id, max_acpi_id);

drivers/xen/xenfs/xensyms.c

···
 
 	symnum = symdata->symnum;
 
-	ret = HYPERVISOR_dom0_op(&xs->op);
+	ret = HYPERVISOR_platform_op(&xs->op);
 	if (ret < 0)
 		return ret;
 
···
 		set_xen_guest_handle(symdata->name, xs->name);
 		symdata->symnum--; /* Rewind */
 
-		ret = HYPERVISOR_dom0_op(&xs->op);
+		ret = HYPERVISOR_platform_op(&xs->op);
 		if (ret < 0)
 			return ret;
 	}

include/xen/interface/xen.h

···
 #define __HYPERVISOR_set_callbacks         4
 #define __HYPERVISOR_fpu_taskswitch        5
 #define __HYPERVISOR_sched_op_compat       6
-#define __HYPERVISOR_dom0_op               7
+#define __HYPERVISOR_platform_op           7
 #define __HYPERVISOR_set_debugreg          8
 #define __HYPERVISOR_get_debugreg          9
 #define __HYPERVISOR_update_descriptor    10