Commit 69c88a6a authored by Anirudh Rayabharam (Microsoft)'s avatar Anirudh Rayabharam (Microsoft) Committed by Wei Liu
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mshv: add definitions for arm64 gpa intercepts 



Add definitions required for handling GPA intercepts on arm64.

Signed-off-by: default avatarAnirudh Rayabharam (Microsoft) <anirudh@anirudhrb.com>
Reviewed-by: default avatarStanislav Kinsburskii <skinsburskii@linux.microsoft.com>
Signed-off-by: default avatarWei Liu <wei.liu@kernel.org>
parent d2999c0f

include/hyperv/hvhdk.h

+47 −0
Original line number Diff line number Diff line
@@ -800,6 +800,53 @@ struct hv_x64_memory_intercept_message { 
	u8 instruction_bytes[16];

} __packed;



#if IS_ENABLED(CONFIG_ARM64)

union hv_arm64_vp_execution_state {

	u16 as_uint16;

	struct {

		u16 cpl:2; /* Exception Level (EL) */

		u16 debug_active:1;

		u16 interruption_pending:1;

		u16 vtl:4;

		u16 virtualization_fault_active:1;

		u16 reserved:7;

	} __packed;

};



struct hv_arm64_intercept_message_header {

	u32 vp_index;

	u8 instruction_length;

	u8 intercept_access_type;

	union hv_arm64_vp_execution_state execution_state;

	u64 pc;

	u64 cpsr;

} __packed;



union hv_arm64_memory_access_info {

	u8 as_uint8;

	struct {

		u8 gva_valid:1;

		u8 gva_gpa_valid:1;

		u8 hypercall_output_pending:1;

		u8 reserved:5;

	} __packed;

};



struct hv_arm64_memory_intercept_message {

	struct hv_arm64_intercept_message_header header;

	u32 cache_type; /* enum hv_cache_type */

	u8 instruction_byte_count;

	union hv_arm64_memory_access_info memory_access_info;

	u16 reserved1;

	u8 instruction_bytes[4];

	u32 reserved2;

	u64 guest_virtual_address;

	u64 guest_physical_address;

	u64 syndrome;

} __packed;



#endif /* CONFIG_ARM64 */



/*

 * Dispatch state for the VP communicated by the hypervisor to the

 * VP-dispatching thread in the root on return from HVCALL_DISPATCH_VP.