/* SPDX-License-Identifier: GPL-2.0 */ /* * Type definitions for the Microsoft Hypervisor. */ #ifndef _HV_HVGDK_EXT_H #define _HV_HVGDK_EXT_H #include "hvgdk_mini.h" /* Extended hypercalls */ #define HV_EXT_CALL_QUERY_CAPABILITIES 0x8001 #define HV_EXT_CALL_MEMORY_HEAT_HINT 0x8003 /* Extended hypercalls */ enum { /* HV_EXT_CALL */ HV_EXTCALL_QUERY_CAPABILITIES = 0x8001, HV_EXTCALL_MEMORY_HEAT_HINT = 0x8003, }; /* HV_EXT_OUTPUT_QUERY_CAPABILITIES */ #define HV_EXT_CAPABILITY_MEMORY_COLD_DISCARD_HINT BIT(8) enum { /* HV_EXT_MEMORY_HEAT_HINT_TYPE */ HV_EXTMEM_HEAT_HINT_COLD = 0, HV_EXTMEM_HEAT_HINT_HOT = 1, HV_EXTMEM_HEAT_HINT_COLD_DISCARD = 2, HV_EXTMEM_HEAT_HINT_MAX }; /* * The whole argument should fit in a page to be able to pass to the hypervisor * in one hypercall. */ #define HV_MEMORY_HINT_MAX_GPA_PAGE_RANGES \ ((HV_HYP_PAGE_SIZE - sizeof(struct hv_memory_hint)) / \ sizeof(union hv_gpa_page_range)) /* HvExtCallMemoryHeatHint hypercall */ #define HV_EXT_MEMORY_HEAT_HINT_TYPE_COLD_DISCARD 2 struct hv_memory_hint { /* HV_EXT_INPUT_MEMORY_HEAT_HINT */ u64 heat_type : 2; /* HV_EXTMEM_HEAT_HINT_* */ u64 reserved : 62; union hv_gpa_page_range ranges[]; } __packed; #endif /* _HV_HVGDK_EXT_H */