[RFC PATCH 05/12] include: hyperv: hvgdk_mini.h: Add VTL-specific structures and bits

[Thara Gopinath <tgopinath@linux.microsoft.com>]

Add the definitions needed by the upcoming VSM / VTL1 bring-up code:

  - HV_ACCESS_VSM and HV_ACCESS_VP_REGS partition privilege bits
  - HVCALL_ENABLE_PARTITION_VTL and
    HVCALL_MODIFY_VTL_PROTECTION_MASK hypercall IDs
  - hv_input_enable_partition_vtl input structure and its flags union
  - hv_register_vsm_{partition_status,vp_status} register layout unions
  - HV_REGISTER_VSM_PARTITION_STATUS and
    HV_REGISTER_VSM_VP_SECURE_CONFIG_VTL0 register names

Definitions taken from the Hyper-V TLFS.

Signed-off-by: Thara Gopinath <tgopinath@linux.microsoft.com>
---
 include/hyperv/hvgdk_mini.h | 46 +++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/include/hyperv/hvgdk_mini.h b/include/hyperv/hvgdk_mini.h
index 6a4e8b9d570fd..a50af532fc7f9 100644
--- a/include/hyperv/hvgdk_mini.h
+++ b/include/hyperv/hvgdk_mini.h
@@ -303,6 +303,8 @@ union hv_hypervisor_version_info {
 #define HV_ACCESS_STATS					BIT(8)
 #define HV_DEBUGGING					BIT(11)
 #define HV_CPU_MANAGEMENT				BIT(12)
+#define HV_ACCESS_VSM					BIT(16)
+#define HV_ACCESS_VP_REGS				BIT(17)
 #define HV_ENABLE_EXTENDED_HYPERCALLS			BIT(20)
 #define HV_ISOLATION					BIT(22)
 
@@ -438,6 +440,8 @@ union hv_vp_assist_msr_contents {	 /* HV_REGISTER_VP_ASSIST_PAGE */
 #define HVCALL_GET_LOGICAL_PROCESSOR_RUN_TIME		0x0004
 #define HVCALL_NOTIFY_LONG_SPIN_WAIT			0x0008
 #define HVCALL_SEND_IPI					0x000b
+#define HVCALL_MODIFY_VTL_PROTECTION_MASK		0x000c
+#define HVCALL_ENABLE_PARTITION_VTL			0x000d
 #define HVCALL_ENABLE_VP_VTL				0x000f
 #define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX		0x0013
 #define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX		0x0014
@@ -878,6 +882,46 @@ struct hv_init_vp_context {
 	u64 msr_cr_pat;
 } __packed;
 
+union hv_enable_partition_vtl_flags {
+	u8 as_uint8;
+	struct {
+		u8 enable_mbec:1;
+		u8 enable_supervisor_shadow_stack:1;
+		u8 enable_hardware_hvpt:1;
+		u8 reserved:5;
+	};
+} __packed;
+
+struct hv_input_enable_partition_vtl {
+	u64					partition_id;
+	union hv_input_vtl			target_vtl;
+	union hv_enable_partition_vtl_flags	flags;
+	u16					rsvd_z16;
+	u32					rsvd_z32;
+} __packed;
+
+union hv_register_vsm_partition_status {
+	u64 as_uint64;
+	struct {
+		u64 enabled_vtl_set : 16;
+		u64 max_vtl : 4;
+		u64 mbec_enabled_vtl_set: 16;
+		u64 supervisor_shadow_stack_enabled_vtl_set : 4;
+		u64 reserved : 24;
+	};
+} __packed;
+
+union hv_register_vsm_vp_status {
+	u64 as_uint64;
+	struct {
+		u64 active_vtl : 4;
+		u64 active_mbec_enabled : 1;
+		u64 reserved_z0 : 11;
+		u64 enabled_vtl_set : 16;
+		u64 reserved_z1 : 32;
+	};
+} __packed;
+
 struct hv_enable_vp_vtl {
 	u64				partition_id;
 	u32				vp_index;
@@ -1061,8 +1105,10 @@ enum hv_register_name {
 
 	/* Synthetic VSM registers */
 	HV_REGISTER_VSM_CODE_PAGE_OFFSETS	= 0x000D0002,
+	HV_REGISTER_VSM_PARTITION_STATUS	= 0x000D0004,
 	HV_REGISTER_VSM_CAPABILITIES		= 0x000D0006,
 	HV_REGISTER_VSM_PARTITION_CONFIG	= 0x000D0007,
+	HV_REGISTER_VSM_VP_SECURE_CONFIG_VTL0	= 0x000D0010,
 
 #if defined(CONFIG_X86)
 	/* X64 Debug Registers */
-- 
2.34.1