diff options
Diffstat (limited to 'arch/x86/include/asm/mshyperv.h')
| -rw-r--r-- | arch/x86/include/asm/mshyperv.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h index 3feb4e36851e..6a9e00c4730b 100644 --- a/arch/x86/include/asm/mshyperv.h +++ b/arch/x86/include/asm/mshyperv.h @@ -51,6 +51,7 @@ extern union hv_ghcb * __percpu *hv_ghcb_pg; extern bool hv_isolation_type_en_snp(void); bool hv_isolation_type_tdx(void); +u64 hv_tdx_hypercall(u64 control, u64 param1, u64 param2); /* * DEFAULT INIT GPAT and SEGMENT LIMIT value in struct VMSA @@ -63,6 +64,10 @@ 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. + */ static inline u64 hv_do_hypercall(u64 control, void *input, void *output) { u64 input_address = input ? virt_to_phys(input) : 0; @@ -70,6 +75,9 @@ static inline u64 hv_do_hypercall(u64 control, void *input, void *output) u64 hv_status; #ifdef CONFIG_X86_64 + if (hv_isolation_type_tdx()) + return hv_tdx_hypercall(control, input_address, output_address); + if (hv_isolation_type_en_snp()) { __asm__ __volatile__("mov %4, %%r8\n" "vmmcall" @@ -123,6 +131,9 @@ static inline u64 _hv_do_fast_hypercall8(u64 control, u64 input1) u64 hv_status; #ifdef CONFIG_X86_64 + if (hv_isolation_type_tdx()) + return hv_tdx_hypercall(control, input1, 0); + if (hv_isolation_type_en_snp()) { __asm__ __volatile__( "vmmcall" @@ -174,6 +185,9 @@ 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()) + return hv_tdx_hypercall(control, input1, input2); + if (hv_isolation_type_en_snp()) { __asm__ __volatile__("mov %4, %%r8\n" "vmmcall" |