diff options
Diffstat (limited to 'arch/x86/include/asm/mshyperv.h')
| -rw-r--r-- | arch/x86/include/asm/mshyperv.h | 224 |
1 files changed, 96 insertions, 128 deletions
diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h index 390c4d13956d..eef4c3a5ba28 100644 --- a/arch/x86/include/asm/mshyperv.h +++ b/arch/x86/include/asm/mshyperv.h @@ -6,10 +6,12 @@ #include <linux/nmi.h> #include <linux/msi.h> #include <linux/io.h> -#include <asm/hyperv-tlfs.h> +#include <linux/static_call.h> #include <asm/nospec-branch.h> #include <asm/paravirt.h> -#include <asm/mshyperv.h> +#include <asm/msr.h> +#include <hyperv/hvhdk.h> +#include <asm/fpu/types.h> /* * Hyper-V always provides a single IO-APIC at this MMIO address. @@ -39,19 +41,21 @@ static inline unsigned char hv_get_nmi_reason(void) return 0; } -#if IS_ENABLED(CONFIG_HYPERV) -extern int hyperv_init_cpuhp; -extern bool hyperv_paravisor_present; +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 u64 hv_current_partition_id; - extern union hv_ghcb * __percpu *hv_ghcb_pg; bool hv_isolation_type_snp(void); bool hv_isolation_type_tdx(void); -u64 hv_tdx_hypercall(u64 control, u64 param1, u64 param2); + +#ifdef CONFIG_X86_64 +DECLARE_STATIC_CALL(hv_hypercall, hv_std_hypercall); +#endif /* * DEFAULT INIT GPAT and SEGMENT LIMIT value in struct VMSA @@ -60,10 +64,6 @@ u64 hv_tdx_hypercall(u64 control, u64 param1, u64 param2); #define HV_AP_INIT_GPAT_DEFAULT 0x0007040600070406ULL #define HV_AP_SEGMENT_LIMIT 0xffffffff -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); - /* * If the hypercall involves no input or output parameters, the hypervisor * ignores the corresponding GPA pointer. @@ -72,37 +72,15 @@ 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_isolation_type_tdx() && !hyperv_paravisor_present) - return hv_tdx_hypercall(control, input_address, output_address); - - if (hv_isolation_type_snp() && !hyperv_paravisor_present) { - __asm__ __volatile__("mov %4, %%r8\n" - "vmmcall" - : "=a" (hv_status), ASM_CALL_CONSTRAINT, - "+c" (control), "+d" (input_address) - : "r" (output_address) - : "cc", "memory", "r8", "r9", "r10", "r11"); - return hv_status; - } - - 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"); + 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; @@ -115,54 +93,30 @@ static inline u64 hv_do_hypercall(u64 control, void *input, void *output) "D"(output_address_hi), "S"(output_address_lo), THUNK_TARGET(hv_hypercall_pg) : "cc", "memory"); -#endif /* !x86_64 */ return hv_status; -} - -/* Hypercall to the L0 hypervisor */ -static inline u64 hv_do_nested_hypercall(u64 control, void *input, void *output) -{ - return hv_do_hypercall(control | HV_HYPERCALL_NESTED, input, output); +#endif /* !x86_64 */ } /* Fast hypercall with 8 bytes of input and no output */ static inline u64 _hv_do_fast_hypercall8(u64 control, u64 input1) { - u64 hv_status; - #ifdef CONFIG_X86_64 - if (hv_isolation_type_tdx() && !hyperv_paravisor_present) - return hv_tdx_hypercall(control, input1, 0); - - if (hv_isolation_type_snp() && !hyperv_paravisor_present) { - __asm__ __volatile__( - "vmmcall" - : "=a" (hv_status), ASM_CALL_CONSTRAINT, - "+c" (control), "+d" (input1) - :: "cc", "r8", "r9", "r10", "r11"); - } else { - __asm__ __volatile__(CALL_NOSPEC - : "=a" (hv_status), ASM_CALL_CONSTRAINT, - "+c" (control), "+d" (input1) - : THUNK_TARGET(hv_hypercall_pg) - : "cc", "r8", "r9", "r10", "r11"); - } + return static_call_mod(hv_hypercall)(control, input1, 0); #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"); - } + 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 - return hv_status; } static inline u64 hv_do_fast_hypercall8(u16 code, u64 input1) @@ -172,55 +126,27 @@ static inline u64 hv_do_fast_hypercall8(u16 code, u64 input1) return _hv_do_fast_hypercall8(control, input1); } -static inline u64 hv_do_fast_nested_hypercall8(u16 code, u64 input1) -{ - u64 control = (u64)code | HV_HYPERCALL_FAST_BIT | HV_HYPERCALL_NESTED; - - 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) { - u64 hv_status; - #ifdef CONFIG_X86_64 - if (hv_isolation_type_tdx() && !hyperv_paravisor_present) - return hv_tdx_hypercall(control, input1, input2); - - if (hv_isolation_type_snp() && !hyperv_paravisor_present) { - __asm__ __volatile__("mov %4, %%r8\n" - "vmmcall" - : "=a" (hv_status), ASM_CALL_CONSTRAINT, - "+c" (control), "+d" (input1) - : "r" (input2) - : "cc", "r8", "r9", "r10", "r11"); - } else { - __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"); - } + 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); - - __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 + 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) @@ -230,13 +156,6 @@ static inline u64 hv_do_fast_hypercall16(u16 code, u64 input1, u64 input2) return _hv_do_fast_hypercall16(control, input1, input2); } -static inline u64 hv_do_fast_nested_hypercall16(u16 code, u64 input1, u64 input2) -{ - u64 control = (u64)code | HV_HYPERCALL_FAST_BIT | HV_HYPERCALL_NESTED; - - 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) @@ -258,6 +177,8 @@ int hyperv_flush_guest_mapping_range(u64 as, int hyperv_fill_flush_guest_mapping_list( struct hv_guest_mapping_flush_list *flush, u64 start_gfn, u64 end_gfn); +void hv_sleep_notifiers_register(void); +void hv_machine_power_off(void); #ifdef CONFIG_X86_64 void hv_apic_init(void); @@ -269,6 +190,8 @@ static inline void hv_apic_init(void) {} 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); @@ -276,11 +199,12 @@ 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 cpu, unsigned long start_ip); +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 cpu, unsigned long start_ip) { return 0; } +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) @@ -312,8 +236,18 @@ void hv_set_non_nested_msr(unsigned int reg, u64 value); static __always_inline u64 hv_raw_get_msr(unsigned int reg) { - return __rdmsr(reg); + return native_rdmsrq(reg); } +int hv_apicid_to_vp_index(u32 apic_id); + +#if IS_ENABLED(CONFIG_MSHV_ROOT) && IS_ENABLED(CONFIG_CRASH_DUMP) +void hv_root_crash_init(void); +void hv_crash_asm32(void); +void hv_crash_asm64(void); +void hv_crash_asm_end(void); +#else /* CONFIG_MSHV_ROOT && CONFIG_CRASH_DUMP */ +static inline void hv_root_crash_init(void) {} +#endif /* CONFIG_MSHV_ROOT && CONFIG_CRASH_DUMP */ #else /* CONFIG_HYPERV */ static inline void hyperv_init(void) {} @@ -335,15 +269,49 @@ 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 */ +struct mshv_vtl_cpu_context { + union { + struct { + u64 rax; + u64 rcx; + u64 rdx; + u64 rbx; + u64 cr2; + u64 rbp; + u64 rsi; + u64 rdi; + u64 r8; + u64 r9; + u64 r10; + u64 r11; + u64 r12; + u64 r13; + u64 r14; + u64 r15; + }; + u64 gp_regs[16]; + }; + + struct fxregs_state fx_state; +}; #ifdef CONFIG_HYPERV_VTL_MODE void __init hv_vtl_init_platform(void); int __init hv_vtl_early_init(void); +void mshv_vtl_return_call(struct mshv_vtl_cpu_context *vtl0); +void mshv_vtl_return_call_init(u64 vtl_return_offset); +void mshv_vtl_return_hypercall(void); +void __mshv_vtl_return_call(struct mshv_vtl_cpu_context *vtl0); #else static inline void __init hv_vtl_init_platform(void) {} static inline int __init hv_vtl_early_init(void) { return 0; } +static inline void mshv_vtl_return_call(struct mshv_vtl_cpu_context *vtl0) {} +static inline void mshv_vtl_return_call_init(u64 vtl_return_offset) {} +static inline void mshv_vtl_return_hypercall(void) {} +static inline void __mshv_vtl_return_call(struct mshv_vtl_cpu_context *vtl0) {} #endif #include <asm-generic/mshyperv.h> |