1*e68bda71SNuno Das Neves /* SPDX-License-Identifier: GPL-2.0 */ 2*e68bda71SNuno Das Neves /* 3*e68bda71SNuno Das Neves * Type definitions for the Microsoft Hypervisor. 4*e68bda71SNuno Das Neves */ 5*e68bda71SNuno Das Neves #ifndef _HV_HVGDK_EXT_H 6*e68bda71SNuno Das Neves #define _HV_HVGDK_EXT_H 7*e68bda71SNuno Das Neves 8*e68bda71SNuno Das Neves #include "hvgdk_mini.h" 9*e68bda71SNuno Das Neves 10*e68bda71SNuno Das Neves /* Extended hypercalls */ 11*e68bda71SNuno Das Neves #define HV_EXT_CALL_QUERY_CAPABILITIES 0x8001 12*e68bda71SNuno Das Neves #define HV_EXT_CALL_MEMORY_HEAT_HINT 0x8003 13*e68bda71SNuno Das Neves 14*e68bda71SNuno Das Neves /* Extended hypercalls */ 15*e68bda71SNuno Das Neves enum { /* HV_EXT_CALL */ 16*e68bda71SNuno Das Neves HV_EXTCALL_QUERY_CAPABILITIES = 0x8001, 17*e68bda71SNuno Das Neves HV_EXTCALL_MEMORY_HEAT_HINT = 0x8003, 18*e68bda71SNuno Das Neves }; 19*e68bda71SNuno Das Neves 20*e68bda71SNuno Das Neves /* HV_EXT_OUTPUT_QUERY_CAPABILITIES */ 21*e68bda71SNuno Das Neves #define HV_EXT_CAPABILITY_MEMORY_COLD_DISCARD_HINT BIT(8) 22*e68bda71SNuno Das Neves 23*e68bda71SNuno Das Neves enum { /* HV_EXT_MEMORY_HEAT_HINT_TYPE */ 24*e68bda71SNuno Das Neves HV_EXTMEM_HEAT_HINT_COLD = 0, 25*e68bda71SNuno Das Neves HV_EXTMEM_HEAT_HINT_HOT = 1, 26*e68bda71SNuno Das Neves HV_EXTMEM_HEAT_HINT_COLD_DISCARD = 2, 27*e68bda71SNuno Das Neves HV_EXTMEM_HEAT_HINT_MAX 28*e68bda71SNuno Das Neves }; 29*e68bda71SNuno Das Neves 30*e68bda71SNuno Das Neves /* 31*e68bda71SNuno Das Neves * The whole argument should fit in a page to be able to pass to the hypervisor 32*e68bda71SNuno Das Neves * in one hypercall. 33*e68bda71SNuno Das Neves */ 34*e68bda71SNuno Das Neves #define HV_MEMORY_HINT_MAX_GPA_PAGE_RANGES \ 35*e68bda71SNuno Das Neves ((HV_HYP_PAGE_SIZE - sizeof(struct hv_memory_hint)) / \ 36*e68bda71SNuno Das Neves sizeof(union hv_gpa_page_range)) 37*e68bda71SNuno Das Neves 38*e68bda71SNuno Das Neves /* HvExtCallMemoryHeatHint hypercall */ 39*e68bda71SNuno Das Neves #define HV_EXT_MEMORY_HEAT_HINT_TYPE_COLD_DISCARD 2 40*e68bda71SNuno Das Neves struct hv_memory_hint { /* HV_EXT_INPUT_MEMORY_HEAT_HINT */ 41*e68bda71SNuno Das Neves u64 heat_type : 2; /* HV_EXTMEM_HEAT_HINT_* */ 42*e68bda71SNuno Das Neves u64 reserved : 62; 43*e68bda71SNuno Das Neves union hv_gpa_page_range ranges[]; 44*e68bda71SNuno Das Neves } __packed; 45*e68bda71SNuno Das Neves 46*e68bda71SNuno Das Neves #endif /* _HV_HVGDK_EXT_H */ 47