hyperv: Switch from hyperv-tlfs.h to hyperv/hvhdk.h

Switch to using hvhdk.h everywhere in the kernel. This header
includes all the new Hyper-V headers in include/hyperv, which form a
superset of the definitions found in hyperv-tlfs.h.

This makes it easier to add new Hyper-V interfaces without being
restricted to those in the TLFS doc (reflected in hyperv-tlfs.h).

To be more consistent with the original Hyper-V code, the names of
some definitions are changed slightly. Update those where needed.

Update comments in mshyperv.h files to point to include/hyperv for
adding new definitions.

Signed-off-by: Nuno Das Neves <[e-mail]>
Reviewed-by: Michael Kelley <[e-mail]>
Reviewed-by: Easwar Hariharan <[e-mail]>
Signed-off-by: Roman Kisel <[e-mail]>
Reviewed-by: Easwar Hariharan <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Wei Liu <[e-mail]>

arch/arm64/hyperv/hv_core.c

···
 #include <linux/arm-smccc.h>
 #include <linux/module.h>
 #include <asm-generic/bug.h>
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 #include <asm/mshyperv.h>
 
 /*

arch/arm64/hyperv/mshyperv.c

···
 	hv_set_vpreg(HV_REGISTER_GUEST_OS_ID, guest_id);
 
 	/* Get the features and hints from Hyper-V */
-	hv_get_vpreg_128(HV_REGISTER_FEATURES, &result);
+	hv_get_vpreg_128(HV_REGISTER_PRIVILEGES_AND_FEATURES_INFO, &result);
 	ms_hyperv.features = result.as32.a;
 	ms_hyperv.priv_high = result.as32.b;
 	ms_hyperv.misc_features = result.as32.c;
 
-	hv_get_vpreg_128(HV_REGISTER_ENLIGHTENMENTS, &result);
+	hv_get_vpreg_128(HV_REGISTER_FEATURES_INFO, &result);
 	ms_hyperv.hints = result.as32.a;
 
 	pr_info("Hyper-V: privilege flags low 0x%x, high 0x%x, hints 0x%x, misc 0x%x\n",

arch/arm64/include/asm/mshyperv.h

···
  * the ARM64 architecture.  See include/asm-generic/mshyperv.h for
  * definitions are that architecture independent.
  *
- * Definitions that are specified in the Hyper-V Top Level Functional
- * Spec (TLFS) should not go in this file, but should instead go in
- * hyperv-tlfs.h.
+ * Definitions that are derived from Hyper-V code or headers should not go in
+ * this file, but should instead go in the relevant files in include/hyperv.
  *
  * Copyright (C) 2021, Microsoft, Inc.
  *
···
 
 #include <linux/types.h>
 #include <linux/arm-smccc.h>
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 
 /*
  * Declare calls to get and set Hyper-V VP register values on ARM64, which

arch/x86/hyperv/hv_init.c

···
 #include <asm/sev.h>
 #include <asm/ibt.h>
 #include <asm/hypervisor.h>
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 #include <asm/mshyperv.h>
 #include <asm/idtentry.h>
 #include <asm/set_memory.h>
···
 static u8 __init get_vtl(void)
 {
 	u64 control = HV_HYPERCALL_REP_COMP_1 | HVCALL_GET_VP_REGISTERS;
-	struct hv_get_vp_registers_input *input;
-	struct hv_get_vp_registers_output *output;
+	struct hv_input_get_vp_registers *input;
+	struct hv_output_get_vp_registers *output;
 	unsigned long flags;
 	u64 ret;
 
 	local_irq_save(flags);
 	input = *this_cpu_ptr(hyperv_pcpu_input_arg);
-	output = (struct hv_get_vp_registers_output *)input;
+	output = (struct hv_output_get_vp_registers *)input;
 
-	memset(input, 0, struct_size(input, element, 1));
-	input->header.partitionid = HV_PARTITION_ID_SELF;
-	input->header.vpindex = HV_VP_INDEX_SELF;
-	input->header.inputvtl = 0;
-	input->element[0].name0 = HV_X64_REGISTER_VSM_VP_STATUS;
+	memset(input, 0, struct_size(input, names, 1));
+	input->partition_id = HV_PARTITION_ID_SELF;
+	input->vp_index = HV_VP_INDEX_SELF;
+	input->input_vtl.as_uint8 = 0;
+	input->names[0] = HV_REGISTER_VSM_VP_STATUS;
 
 	ret = hv_do_hypercall(control, input, output);
 	if (hv_result_success(ret)) {
-		ret = output->as64.low & HV_X64_VTL_MASK;
+		ret = output->values[0].reg8 & HV_X64_VTL_MASK;
 	} else {
 		pr_err("Failed to get VTL(error: %lld) exiting...\n", ret);
 		BUG();

arch/x86/hyperv/hv_proc.c

···
 		input->partition_id = partition_id;
 		input->vp_index = vp_index;
 		input->flags = flags;
-		input->subnode_type = HvSubnodeAny;
+		input->subnode_type = HV_SUBNODE_ANY;
 		input->proximity_domain_info = hv_numa_node_to_pxm_info(node);
 		status = hv_do_hypercall(HVCALL_CREATE_VP, input, NULL);
 		local_irq_restore(irq_flags);

arch/x86/hyperv/nested.c

···
 
 
 #include <linux/types.h>
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 #include <asm/mshyperv.h>
 #include <asm/tlbflush.h>
 

arch/x86/include/asm/kvm_host.h

···
 #include <asm/asm.h>
 #include <asm/kvm_page_track.h>
 #include <asm/kvm_vcpu_regs.h>
-#include <asm/hyperv-tlfs.h>
 #include <asm/reboot.h>
+#include <hyperv/hvhdk.h>
 
 #define __KVM_HAVE_ARCH_VCPU_DEBUGFS
 

arch/x86/include/asm/mshyperv.h

···
 #include <linux/nmi.h>
 #include <linux/msi.h>
 #include <linux/io.h>
-#include <asm/hyperv-tlfs.h>
 #include <asm/nospec-branch.h>
 #include <asm/paravirt.h>
+#include <hyperv/hvhdk.h>
 
 /*
  * Hyper-V always provides a single IO-APIC at this MMIO address.

arch/x86/include/asm/svm.h

···
 #include <uapi/asm/svm.h>
 #include <uapi/asm/kvm.h>
 
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 
 /*
  * 32-bit intercept words in the VMCB Control Area, starting

arch/x86/kernel/cpu/mshyperv.c

···
 #include <linux/random.h>
 #include <asm/processor.h>
 #include <asm/hypervisor.h>
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 #include <asm/mshyperv.h>
 #include <asm/desc.h>
 #include <asm/idtentry.h>

arch/x86/kvm/vmx/hyperv_evmcs.h

···
 #ifndef __KVM_X86_VMX_HYPERV_EVMCS_H
 #define __KVM_X86_VMX_HYPERV_EVMCS_H
 
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 
 #include "capabilities.h"
 #include "vmcs12.h"

arch/x86/kvm/vmx/vmx_onhyperv.h

···
 #ifndef __ARCH_X86_KVM_VMX_ONHYPERV_H__
 #define __ARCH_X86_KVM_VMX_ONHYPERV_H__
 
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 #include <asm/mshyperv.h>
 
 #include <linux/jump_label.h>

drivers/clocksource/hyperv_timer.c

···
 #include <linux/acpi.h>
 #include <linux/hyperv.h>
 #include <clocksource/hyperv_timer.h>
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 #include <asm/mshyperv.h>
 
 static struct clock_event_device __percpu *hv_clock_event;

drivers/hv/hv_balloon.c

···
 #include <linux/sizes.h>
 
 #include <linux/hyperv.h>
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 
 #include <asm/mshyperv.h>
 
···
 		return -ENOSPC;
 	}
 
-	hint->type = HV_EXT_MEMORY_HEAT_HINT_TYPE_COLD_DISCARD;
+	hint->heat_type = HV_EXTMEM_HEAT_HINT_COLD_DISCARD;
 	hint->reserved = 0;
 	for_each_sg(sgl, sg, nents, i) {
 		union hv_gpa_page_range *range;

drivers/hv/hv_common.c

···
 #include <linux/slab.h>
 #include <linux/dma-map-ops.h>
 #include <linux/set_memory.h>
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 #include <asm/mshyperv.h>
 
 /*

drivers/hv/hv_kvp.c

···
 #include <linux/connector.h>
 #include <linux/workqueue.h>
 #include <linux/hyperv.h>
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 
 #include "hyperv_vmbus.h"
 #include "hv_utils_transport.h"

drivers/hv/hv_snapshot.c

···
 #include <linux/connector.h>
 #include <linux/workqueue.h>
 #include <linux/hyperv.h>
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 
 #include "hyperv_vmbus.h"
 #include "hv_utils_transport.h"

drivers/hv/hyperv_vmbus.h

···
 #include <linux/list.h>
 #include <linux/bitops.h>
 #include <asm/sync_bitops.h>
-#include <asm/hyperv-tlfs.h>
 #include <linux/atomic.h>
 #include <linux/hyperv.h>
 #include <linux/interrupt.h>
+#include <hyperv/hvhdk.h>
 
 #include "hv_trace.h"
 

include/asm-generic/mshyperv.h

···
  * independent. See arch/<arch>/include/asm/mshyperv.h for definitions
  * that are specific to architecture <arch>.
  *
- * Definitions that are specified in the Hyper-V Top Level Functional
- * Spec (TLFS) should not go in this file, but should instead go in
- * hyperv-tlfs.h.
+ * Definitions that are derived from Hyper-V code or headers should not go in
+ * this file, but should instead go in the relevant files in include/hyperv.
  *
  * Copyright (C) 2019, Microsoft, Inc.
  *
···
 #include <linux/cpumask.h>
 #include <linux/nmi.h>
 #include <asm/ptrace.h>
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 
 #define VTPM_BASE_ADDRESS 0xfed40000
 

include/clocksource/hyperv_timer.h

···
 
 #include <linux/clocksource.h>
 #include <linux/math64.h>
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 
 #define HV_MAX_MAX_DELTA_TICKS 0xffffffff
 #define HV_MIN_DELTA_TICKS 1

include/linux/hyperv.h

···
 #include <linux/mod_devicetable.h>
 #include <linux/interrupt.h>
 #include <linux/reciprocal_div.h>
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 
 #define MAX_PAGE_BUFFER_COUNT				32
 #define MAX_MULTIPAGE_BUFFER_COUNT			32 /* 128K */

net/vmw_vsock/hyperv_transport.c

···
 #include <linux/hyperv.h>
 #include <net/sock.h>
 #include <net/af_vsock.h>
-#include <asm/hyperv-tlfs.h>
+#include <hyperv/hvhdk.h>
 
 /* Older (VMBUS version 'VERSION_WIN10' or before) Windows hosts have some
  * stricter requirements on the hv_sock ring buffer size of six 4K pages.
- * hyperv-tlfs defines HV_HYP_PAGE_SIZE as 4K. Newer hosts don't have this
- * limitation; but, keep the defaults the same for compat.
+ * HV_HYP_PAGE_SIZE is defined as 4K. Newer hosts don't have this limitation;
+ * but, keep the defaults the same for compat.
  */
 #define RINGBUFFER_HVS_RCV_SIZE (HV_HYP_PAGE_SIZE * 6)
 #define RINGBUFFER_HVS_SND_SIZE (HV_HYP_PAGE_SIZE * 6)