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x86/hyperv: Add VTL specific structs and hypercalls 

Add structs and hypercalls required to enable VTL support on x86.

Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Stanislav Kinsburskii <stanislav.kinsburskii@gmail.com>
Link: https://lore.kernel.org/r/1681192532-15460-3-git-send-email-ssengar@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
This commit is contained in:
Saurabh Sengar 2023-04-10 22:55:29 -07:00 committed by Wei Liu
parent d21a19e1c2
commit c26e0527aa
2 changed files with 79 additions and 0 deletions
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75
arch/x86/include/asm/hyperv-tlfs.h
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@ -716,6 +716,81 @@ union hv_msi_entry {
} __packed;
};
struct hv_x64_segment_register {
u64 base;
u32 limit;
u16 selector;
union {
struct {
u16 segment_type : 4;
u16 non_system_segment : 1;
u16 descriptor_privilege_level : 2;
u16 present : 1;
u16 reserved : 4;
u16 available : 1;
u16 _long : 1;
u16 _default : 1;
u16 granularity : 1;
} __packed;
u16 attributes;
};
} __packed;
struct hv_x64_table_register {
u16 pad[3];
u16 limit;
u64 base;
} __packed;
struct hv_init_vp_context {
u64 rip;
u64 rsp;
u64 rflags;
struct hv_x64_segment_register cs;
struct hv_x64_segment_register ds;
struct hv_x64_segment_register es;
struct hv_x64_segment_register fs;
struct hv_x64_segment_register gs;
struct hv_x64_segment_register ss;
struct hv_x64_segment_register tr;
struct hv_x64_segment_register ldtr;
struct hv_x64_table_register idtr;
struct hv_x64_table_register gdtr;
u64 efer;
u64 cr0;
u64 cr3;
u64 cr4;
u64 msr_cr_pat;
} __packed;
union hv_input_vtl {
u8 as_uint8;
struct {
u8 target_vtl: 4;
u8 use_target_vtl: 1;
u8 reserved_z: 3;
};
} __packed;
struct hv_enable_vp_vtl {
u64 partition_id;
u32 vp_index;
union hv_input_vtl target_vtl;
u8 mbz0;
u16 mbz1;
struct hv_init_vp_context vp_context;
} __packed;
struct hv_get_vp_from_apic_id_in {
u64 partition_id;
union hv_input_vtl target_vtl;
u8 res[7];
u32 apic_ids[];
} __packed;
#include <asm-generic/hyperv-tlfs.h>
#endif

4
include/asm-generic/hyperv-tlfs.h
View File

@ -146,6 +146,7 @@ union hv_reference_tsc_msr {
/* Declare the various hypercall operations. */
#define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE 0x0002
#define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST 0x0003
#define HVCALL_ENABLE_VP_VTL 0x000f
#define HVCALL_NOTIFY_LONG_SPIN_WAIT 0x0008
#define HVCALL_SEND_IPI 0x000b
#define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX 0x0013
@ -165,6 +166,8 @@ union hv_reference_tsc_msr {
#define HVCALL_MAP_DEVICE_INTERRUPT 0x007c
#define HVCALL_UNMAP_DEVICE_INTERRUPT 0x007d
#define HVCALL_RETARGET_INTERRUPT 0x007e
#define HVCALL_START_VP 0x0099
#define HVCALL_GET_VP_ID_FROM_APIC_ID 0x009a
#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE 0x00af
#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_LIST 0x00b0
#define HVCALL_MODIFY_SPARSE_GPA_PAGE_HOST_VISIBILITY 0x00db
@ -220,6 +223,7 @@ enum HV_GENERIC_SET_FORMAT {
#define HV_STATUS_INVALID_PORT_ID 17
#define HV_STATUS_INVALID_CONNECTION_ID 18
#define HV_STATUS_INSUFFICIENT_BUFFERS 19
#define HV_STATUS_VTL_ALREADY_ENABLED 134
/*
* The Hyper-V TimeRefCount register and the TSC