mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
295 lines
8.5 KiB
295 lines
8.5 KiB
/* 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 <linux/msi.h> |
|
#include <asm/io.h> |
|
#include <asm/hyperv-tlfs.h> |
|
#include <asm/nospec-branch.h> |
|
#include <asm/paravirt.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 + (2*timer), tick) |
|
#define hv_init_timer_config(timer, val) \ |
|
wrmsrl(HV_X64_MSR_STIMER0_CONFIG + (2*timer), 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_recommend_using_aeoi() \ |
|
(!(ms_hyperv.hints & HV_DEPRECATING_AEOI_RECOMMENDED)) |
|
|
|
#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).vdso_clock_mode = VDSO_CLOCKMODE_HVCLOCK) |
|
#define hv_enable_vdso_clocksource() \ |
|
vclocks_set_used(VDSO_CLOCKMODE_HVCLOCK); |
|
#define hv_get_raw_timer() rdtsc_ordered() |
|
#define hv_get_vector() HYPERVISOR_CALLBACK_VECTOR |
|
|
|
/* |
|
* Reference to pv_ops must be inline so objtool |
|
* detection of noinstr violations can work correctly. |
|
*/ |
|
static __always_inline void hv_setup_sched_clock(void *sched_clock) |
|
{ |
|
#ifdef CONFIG_PARAVIRT |
|
pv_ops.time.sched_clock = sched_clock; |
|
#endif |
|
} |
|
|
|
void hyperv_vector_handler(struct pt_regs *regs); |
|
|
|
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 int hyperv_init_cpuhp; |
|
|
|
extern void *hv_hypercall_pg; |
|
extern void __percpu **hyperv_pcpu_input_arg; |
|
extern void __percpu **hyperv_pcpu_output_arg; |
|
|
|
extern u64 hv_current_partition_id; |
|
|
|
int hv_call_deposit_pages(int node, u64 partition_id, u32 num_pages); |
|
int hv_call_add_logical_proc(int node, u32 lp_index, u32 acpi_id); |
|
int hv_call_create_vp(int node, u64 partition_id, u32 vp_index, u32 flags); |
|
|
|
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_alloc_hyperv_zeroed_page(void); |
|
void hv_free_hyperv_page(unsigned long addr); |
|
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); |
|
|
|
extern bool hv_root_partition; |
|
|
|
#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 |
|
|
|
static inline void hv_set_msi_entry_from_desc(union hv_msi_entry *msi_entry, |
|
struct msi_desc *msi_desc) |
|
{ |
|
msi_entry->address.as_uint32 = msi_desc->msg.address_lo; |
|
msi_entry->data.as_uint32 = msi_desc->msg.data; |
|
} |
|
|
|
struct irq_domain *hv_create_pci_msi_domain(void); |
|
|
|
int hv_map_ioapic_interrupt(int ioapic_id, bool level, int vcpu, int vector, |
|
struct hv_interrupt_entry *entry); |
|
int hv_unmap_ioapic_interrupt(int ioapic_id, struct hv_interrupt_entry *entry); |
|
|
|
#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
|
|
|