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Файловый менеджер - Редактировать - /usr/src/linux-headers-5.4.0-200/arch/x86/include/asm/mshyperv.h

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/* SPDX-License-Identifier: GPL-2.0 / #ifndef _ASM_X86_MSHYPER_H #define _ASM_X86_MSHYPER_H #include <linux/types.h> #include <linux/nmi.h> #include <asm/io.h> #include <asm/hyperv-tlfs.h> #include <asm/nospec-branch.h> typedef int (hyperv_fill_flush_list_func)( struct hv_guest_mapping_flush_list flush, void data); #define hv_init_timer(timer, tick) \ wrmsrl(HV_X64_MSR_STIMER0_COUNT + (2timer), tick) #define hv_init_timer_config(timer, val) \ wrmsrl(HV_X64_MSR_STIMER0_CONFIG + (2timer), val) #define hv_get_simp(val) rdmsrl(HV_X64_MSR_SIMP, val) #define hv_set_simp(val) wrmsrl(HV_X64_MSR_SIMP, val) #define hv_get_siefp(val) rdmsrl(HV_X64_MSR_SIEFP, val) #define hv_set_siefp(val) wrmsrl(HV_X64_MSR_SIEFP, val) #define hv_get_synic_state(val) rdmsrl(HV_X64_MSR_SCONTROL, val) #define hv_set_synic_state(val) wrmsrl(HV_X64_MSR_SCONTROL, val) #define hv_get_vp_index(index) rdmsrl(HV_X64_MSR_VP_INDEX, index) #define hv_signal_eom() wrmsrl(HV_X64_MSR_EOM, 0) #define hv_get_synint_state(int_num, val) \ rdmsrl(HV_X64_MSR_SINT0 + int_num, val) #define hv_set_synint_state(int_num, val) \ wrmsrl(HV_X64_MSR_SINT0 + int_num, val) #define hv_get_crash_ctl(val) \ rdmsrl(HV_X64_MSR_CRASH_CTL, val) #define hv_get_time_ref_count(val) \ rdmsrl(HV_X64_MSR_TIME_REF_COUNT, val) #define hv_get_reference_tsc(val) \ rdmsrl(HV_X64_MSR_REFERENCE_TSC, val) #define hv_set_reference_tsc(val) \ wrmsrl(HV_X64_MSR_REFERENCE_TSC, val) #define hv_set_clocksource_vdso(val) \ ((val).archdata.vclock_mode = VCLOCK_HVCLOCK) #define hv_get_raw_timer() rdtsc_ordered() void hyperv_callback_vector(void); void hyperv_reenlightenment_vector(void); #ifdef CONFIG_TRACING #define trace_hyperv_callback_vector hyperv_callback_vector #endif void hyperv_vector_handler(struct pt_regs regs); / * Routines for stimer0 Direct Mode handling. * On x86/x64, there are no percpu actions to take. / void hv_stimer0_vector_handler(struct pt_regs regs); void hv_stimer0_callback_vector(void); static inline void hv_enable_stimer0_percpu_irq(int irq) {} static inline void hv_disable_stimer0_percpu_irq(int irq) {} #if IS_ENABLED(CONFIG_HYPERV) extern void hv_hypercall_pg; extern void __percpu hyperv_pcpu_input_arg; static inline u64 hv_do_hypercall(u64 control, void input, void output) { u64 input_address = input ? virt_to_phys(input) : 0; u64 output_address = output ? virt_to_phys(output) : 0; u64 hv_status; #ifdef CONFIG_X86_64 if (!hv_hypercall_pg) return U64_MAX; __asm__ __volatile__("mov %4, %%r8\n" CALL_NOSPEC : "=a" (hv_status), ASM_CALL_CONSTRAINT, "+c" (control), "+d" (input_address) : "r" (output_address), THUNK_TARGET(hv_hypercall_pg) : "cc", "memory", "r8", "r9", "r10", "r11"); #else u32 input_address_hi = upper_32_bits(input_address); u32 input_address_lo = lower_32_bits(input_address); u32 output_address_hi = upper_32_bits(output_address); u32 output_address_lo = lower_32_bits(output_address); if (!hv_hypercall_pg) return U64_MAX; __asm__ __volatile__(CALL_NOSPEC : "=A" (hv_status), "+c" (input_address_lo), ASM_CALL_CONSTRAINT : "A" (control), "b" (input_address_hi), "D"(output_address_hi), "S"(output_address_lo), THUNK_TARGET(hv_hypercall_pg) : "cc", "memory"); #endif / !x86_64 / return hv_status; } / Fast hypercall with 8 bytes of input and no output / static inline u64 hv_do_fast_hypercall8(u16 code, u64 input1) { u64 hv_status, control = (u64)code \| HV_HYPERCALL_FAST_BIT; #ifdef CONFIG_X86_64 { __asm__ __volatile__(CALL_NOSPEC : "=a" (hv_status), ASM_CALL_CONSTRAINT, "+c" (control), "+d" (input1) : THUNK_TARGET(hv_hypercall_pg) : "cc", "r8", "r9", "r10", "r11"); } #else { u32 input1_hi = upper_32_bits(input1); u32 input1_lo = lower_32_bits(input1); __asm__ __volatile__ (CALL_NOSPEC : "=A"(hv_status), "+c"(input1_lo), ASM_CALL_CONSTRAINT : "A" (control), "b" (input1_hi), THUNK_TARGET(hv_hypercall_pg) : "cc", "edi", "esi"); } #endif return hv_status; } / Fast hypercall with 16 bytes of input / static inline u64 hv_do_fast_hypercall16(u16 code, u64 input1, u64 input2) { u64 hv_status, control = (u64)code \| HV_HYPERCALL_FAST_BIT; #ifdef CONFIG_X86_64 { __asm__ __volatile__("mov %4, %%r8\n" CALL_NOSPEC : "=a" (hv_status), ASM_CALL_CONSTRAINT, "+c" (control), "+d" (input1) : "r" (input2), THUNK_TARGET(hv_hypercall_pg) : "cc", "r8", "r9", "r10", "r11"); } #else { u32 input1_hi = upper_32_bits(input1); u32 input1_lo = lower_32_bits(input1); u32 input2_hi = upper_32_bits(input2); u32 input2_lo = lower_32_bits(input2); __asm__ __volatile__ (CALL_NOSPEC : "=A"(hv_status), "+c"(input1_lo), ASM_CALL_CONSTRAINT : "A" (control), "b" (input1_hi), "D"(input2_hi), "S"(input2_lo), THUNK_TARGET(hv_hypercall_pg) : "cc"); } #endif return hv_status; } / * Rep hypercalls. Callers of this functions are supposed to ensure that * rep_count and varhead_size comply with Hyper-V hypercall definition. / static inline u64 hv_do_rep_hypercall(u16 code, u16 rep_count, u16 varhead_size, void input, void output) { u64 control = code; u64 status; u16 rep_comp; control \|= (u64)varhead_size << HV_HYPERCALL_VARHEAD_OFFSET; control \|= (u64)rep_count << HV_HYPERCALL_REP_COMP_OFFSET; do { status = hv_do_hypercall(control, input, output); if ((status & HV_HYPERCALL_RESULT_MASK) != HV_STATUS_SUCCESS) return status; / Bits 32-43 of status have 'Reps completed' data. / rep_comp = (status & HV_HYPERCALL_REP_COMP_MASK) >> HV_HYPERCALL_REP_COMP_OFFSET; control &= ~HV_HYPERCALL_REP_START_MASK; control \|= (u64)rep_comp << HV_HYPERCALL_REP_START_OFFSET; touch_nmi_watchdog(); } while (rep_comp < rep_count); return status; } extern struct hv_vp_assist_page hv_vp_assist_page; static inline struct hv_vp_assist_page hv_get_vp_assist_page(unsigned int cpu) { if (!hv_vp_assist_page) return NULL; return hv_vp_assist_page[cpu]; } void __init hyperv_init(void); void hyperv_setup_mmu_ops(void); void hv_alloc_hyperv_page(void); void hv_free_hyperv_page(unsigned long addr); void hyperv_reenlightenment_intr(struct pt_regs regs); void set_hv_tscchange_cb(void (cb)(void)); void clear_hv_tscchange_cb(void); void hyperv_stop_tsc_emulation(void); int hyperv_flush_guest_mapping(u64 as); int hyperv_flush_guest_mapping_range(u64 as, hyperv_fill_flush_list_func fill_func, void data); int hyperv_fill_flush_guest_mapping_list( struct hv_guest_mapping_flush_list flush, u64 start_gfn, u64 end_gfn); #ifdef CONFIG_X86_64 void hv_apic_init(void); void __init hv_init_spinlocks(void); bool hv_vcpu_is_preempted(int vcpu); #else static inline void hv_apic_init(void) {} #endif #else / CONFIG_HYPERV / static inline void hyperv_init(void) {} static inline void hyperv_setup_mmu_ops(void) {} static inline void hv_alloc_hyperv_page(void) { return NULL; } static inline void hv_free_hyperv_page(unsigned long addr) {} static inline void set_hv_tscchange_cb(void (cb)(void)) {} static inline void clear_hv_tscchange_cb(void) {} static inline void hyperv_stop_tsc_emulation(void) {}; static inline struct hv_vp_assist_page hv_get_vp_assist_page(unsigned int cpu) { return NULL; } static inline int hyperv_flush_guest_mapping(u64 as) { return -1; } static inline int hyperv_flush_guest_mapping_range(u64 as, hyperv_fill_flush_list_func fill_func, void data) { return -1; } #endif / CONFIG_HYPERV */ #include <asm-generic/mshyperv.h> #endif

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