Contributors: 29
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Vitaly Kuznetsov |
318 |
26.09% |
15 |
18.52% |
| Lan Tianyu |
292 |
23.95% |
7 |
8.64% |
| Dexuan Cui |
91 |
7.47% |
6 |
7.41% |
| K. Y. Srinivasan |
68 |
5.58% |
8 |
9.88% |
| Jinank Jain |
63 |
5.17% |
2 |
2.47% |
| Peter Zijlstra |
57 |
4.68% |
2 |
2.47% |
| Saurabh Sengar |
53 |
4.35% |
3 |
3.70% |
| Michael Kelley |
47 |
3.86% |
6 |
7.41% |
| Wei Liu |
46 |
3.77% |
2 |
2.47% |
| Nuno Das Neves |
39 |
3.20% |
3 |
3.70% |
| Roman Kisel |
31 |
2.54% |
2 |
2.47% |
| Thomas Gleixner |
29 |
2.38% |
4 |
4.94% |
| Hank Janssen |
23 |
1.89% |
1 |
1.23% |
| Yi Sun |
11 |
0.90% |
1 |
1.23% |
| Stanislav Kinsburskii |
10 |
0.82% |
1 |
1.23% |
| Haiyang Zhang |
7 |
0.57% |
1 |
1.23% |
| Greg Kroah-Hartman |
7 |
0.57% |
3 |
3.70% |
| H. Peter Anvin |
4 |
0.33% |
1 |
1.23% |
| Jake Oshins |
4 |
0.33% |
2 |
2.47% |
| Dave Jones |
3 |
0.25% |
2 |
2.47% |
| Gleb Natapov |
3 |
0.25% |
1 |
1.23% |
| David Woodhouse |
3 |
0.25% |
1 |
1.23% |
| Ingo Molnar |
2 |
0.16% |
1 |
1.23% |
| Sunil Muthuswamy |
2 |
0.16% |
1 |
1.23% |
| Stefano Stabellini |
2 |
0.16% |
1 |
1.23% |
| Guilherme G. Piccoli |
1 |
0.08% |
1 |
1.23% |
| ZhiHu |
1 |
0.08% |
1 |
1.23% |
| Xin Li (Intel) |
1 |
0.08% |
1 |
1.23% |
| Nathan Chancellor |
1 |
0.08% |
1 |
1.23% |
| Total |
1219 |
|
81 |
|
/* 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 <linux/io.h>
#include <linux/static_call.h>
#include <asm/nospec-branch.h>
#include <asm/paravirt.h>
#include <asm/msr.h>
#include <hyperv/hvhdk.h>
/*
* Hyper-V always provides a single IO-APIC at this MMIO address.
* Ideally, the value should be looked up in ACPI tables, but it
* is needed for mapping the IO-APIC early in boot on Confidential
* VMs, before ACPI functions can be used.
*/
#define HV_IOAPIC_BASE_ADDRESS 0xfec00000
#define HV_VTL_NORMAL 0x0
#define HV_VTL_SECURE 0x1
#define HV_VTL_MGMT 0x2
union hv_ghcb;
DECLARE_STATIC_KEY_FALSE(isolation_type_snp);
DECLARE_STATIC_KEY_FALSE(isolation_type_tdx);
typedef int (*hyperv_fill_flush_list_func)(
struct hv_guest_mapping_flush_list *flush,
void *data);
void hyperv_vector_handler(struct pt_regs *regs);
static inline unsigned char hv_get_nmi_reason(void)
{
return 0;
}
extern u64 hv_tdx_hypercall(u64 control, u64 param1, u64 param2);
extern u64 hv_snp_hypercall(u64 control, u64 param1, u64 param2);
extern u64 hv_std_hypercall(u64 control, u64 param1, u64 param2);
#if IS_ENABLED(CONFIG_HYPERV)
extern void *hv_hypercall_pg;
extern union hv_ghcb * __percpu *hv_ghcb_pg;
bool hv_isolation_type_snp(void);
bool hv_isolation_type_tdx(void);
#ifdef CONFIG_X86_64
DECLARE_STATIC_CALL(hv_hypercall, hv_std_hypercall);
#endif
/*
* DEFAULT INIT GPAT and SEGMENT LIMIT value in struct VMSA
* to start AP in enlightened SEV guest.
*/
#define HV_AP_INIT_GPAT_DEFAULT 0x0007040600070406ULL
#define HV_AP_SEGMENT_LIMIT 0xffffffff
/*
* If the hypercall involves no input or output parameters, the hypervisor
* ignores the corresponding GPA pointer.
*/
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;
#ifdef CONFIG_X86_64
return static_call_mod(hv_hypercall)(control, input_address, output_address);
#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);
u64 hv_status;
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");
return hv_status;
#endif /* !x86_64 */
}
/* Fast hypercall with 8 bytes of input and no output */
static inline u64 _hv_do_fast_hypercall8(u64 control, u64 input1)
{
#ifdef CONFIG_X86_64
return static_call_mod(hv_hypercall)(control, input1, 0);
#else
u32 input1_hi = upper_32_bits(input1);
u32 input1_lo = lower_32_bits(input1);
u64 hv_status;
__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");
return hv_status;
#endif
}
static inline u64 hv_do_fast_hypercall8(u16 code, u64 input1)
{
u64 control = (u64)code | HV_HYPERCALL_FAST_BIT;
return _hv_do_fast_hypercall8(control, input1);
}
/* Fast hypercall with 16 bytes of input */
static inline u64 _hv_do_fast_hypercall16(u64 control, u64 input1, u64 input2)
{
#ifdef CONFIG_X86_64
return static_call_mod(hv_hypercall)(control, input1, input2);
#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);
u64 hv_status;
__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");
return hv_status;
#endif
}
static inline u64 hv_do_fast_hypercall16(u16 code, u64 input1, u64 input2)
{
u64 control = (u64)code | HV_HYPERCALL_FAST_BIT;
return _hv_do_fast_hypercall16(control, input1, input2);
}
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 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
struct irq_domain *hv_create_pci_msi_domain(void);
int hv_map_msi_interrupt(struct irq_data *data,
struct hv_interrupt_entry *out_entry);
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);
#ifdef CONFIG_AMD_MEM_ENCRYPT
bool hv_ghcb_negotiate_protocol(void);
void __noreturn hv_ghcb_terminate(unsigned int set, unsigned int reason);
int hv_snp_boot_ap(u32 apic_id, unsigned long start_ip, unsigned int cpu);
#else
static inline bool hv_ghcb_negotiate_protocol(void) { return false; }
static inline void hv_ghcb_terminate(unsigned int set, unsigned int reason) {}
static inline int hv_snp_boot_ap(u32 apic_id, unsigned long start_ip,
unsigned int cpu) { return 0; }
#endif
#if defined(CONFIG_AMD_MEM_ENCRYPT) || defined(CONFIG_INTEL_TDX_GUEST)
void hv_vtom_init(void);
void hv_ivm_msr_write(u64 msr, u64 value);
void hv_ivm_msr_read(u64 msr, u64 *value);
#else
static inline void hv_vtom_init(void) {}
static inline void hv_ivm_msr_write(u64 msr, u64 value) {}
static inline void hv_ivm_msr_read(u64 msr, u64 *value) {}
#endif
static inline bool hv_is_synic_msr(unsigned int reg)
{
return (reg >= HV_X64_MSR_SCONTROL) &&
(reg <= HV_X64_MSR_SINT15);
}
static inline bool hv_is_sint_msr(unsigned int reg)
{
return (reg >= HV_X64_MSR_SINT0) &&
(reg <= HV_X64_MSR_SINT15);
}
u64 hv_get_msr(unsigned int reg);
void hv_set_msr(unsigned int reg, u64 value);
u64 hv_get_non_nested_msr(unsigned int reg);
void hv_set_non_nested_msr(unsigned int reg, u64 value);
static __always_inline u64 hv_raw_get_msr(unsigned int reg)
{
return native_rdmsrq(reg);
}
int hv_apicid_to_vp_index(u32 apic_id);
#else /* CONFIG_HYPERV */
static inline void hyperv_init(void) {}
static inline void hyperv_setup_mmu_ops(void) {}
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;
}
static inline void hv_set_msr(unsigned int reg, u64 value) { }
static inline u64 hv_get_msr(unsigned int reg) { return 0; }
static inline void hv_set_non_nested_msr(unsigned int reg, u64 value) { }
static inline u64 hv_get_non_nested_msr(unsigned int reg) { return 0; }
static inline int hv_apicid_to_vp_index(u32 apic_id) { return -EINVAL; }
#endif /* CONFIG_HYPERV */
#ifdef CONFIG_HYPERV_VTL_MODE
void __init hv_vtl_init_platform(void);
int __init hv_vtl_early_init(void);
#else
static inline void __init hv_vtl_init_platform(void) {}
static inline int __init hv_vtl_early_init(void) { return 0; }
#endif
#include <asm-generic/mshyperv.h>
#endif