diff options
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/vmware.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/x86/include/asm/vmware.h b/arch/x86/include/asm/vmware.h index d83444f03969..c9cf43d5ef23 100644 --- a/arch/x86/include/asm/vmware.h +++ b/arch/x86/include/asm/vmware.h @@ -18,6 +18,12 @@ * arg2 - Hypercall command * arg3 bits [15:0] - Port number, LB and direction flags * + * - Low bandwidth TDX hypercalls (x86_64 only) are similar to LB + * hypercalls. They also have up to 6 input and 6 output on registers + * arguments, with different argument to register mapping: + * %r12 (arg0), %rbx (arg1), %r13 (arg2), %rdx (arg3), + * %rsi (arg4), %rdi (arg5). + * * - High bandwidth (HB) hypercalls are I/O port based only. They have * up to 7 input and 7 output arguments passed and returned using * registers: %eax (arg0), %ebx (arg1), %ecx (arg2), %edx (arg3), @@ -54,6 +60,12 @@ #define VMWARE_CMD_GETHZ 45 #define VMWARE_CMD_GETVCPU_INFO 68 #define VMWARE_CMD_STEALCLOCK 91 +/* + * Hypercall command mask: + * bits [6:0] command, range [0, 127] + * bits [19:16] sub-command, range [0, 15] + */ +#define VMWARE_CMD_MASK 0xf007fU #define CPUID_VMWARE_FEATURES_ECX_VMMCALL BIT(0) #define CPUID_VMWARE_FEATURES_ECX_VMCALL BIT(1) @@ -64,6 +76,15 @@ extern unsigned long vmware_hypercall_slow(unsigned long cmd, u32 *out1, u32 *out2, u32 *out3, u32 *out4, u32 *out5); +#define VMWARE_TDX_VENDOR_LEAF 0x1af7e4909ULL +#define VMWARE_TDX_HCALL_FUNC 1 + +extern unsigned long vmware_tdx_hypercall(unsigned long cmd, + unsigned long in1, unsigned long in3, + unsigned long in4, unsigned long in5, + u32 *out1, u32 *out2, u32 *out3, + u32 *out4, u32 *out5); + /* * The low bandwidth call. The low word of %edx is presumed to have OUT bit * set. The high word of %edx may contain input data from the caller. @@ -79,6 +100,10 @@ unsigned long vmware_hypercall1(unsigned long cmd, unsigned long in1) { unsigned long out0; + if (cpu_feature_enabled(X86_FEATURE_TDX_GUEST)) + return vmware_tdx_hypercall(cmd, in1, 0, 0, 0, + NULL, NULL, NULL, NULL, NULL); + if (unlikely(!alternatives_patched) && !__is_defined(MODULE)) return vmware_hypercall_slow(cmd, in1, 0, 0, 0, NULL, NULL, NULL, NULL, NULL); @@ -100,6 +125,10 @@ unsigned long vmware_hypercall3(unsigned long cmd, unsigned long in1, { unsigned long out0; + if (cpu_feature_enabled(X86_FEATURE_TDX_GUEST)) + return vmware_tdx_hypercall(cmd, in1, 0, 0, 0, + out1, out2, NULL, NULL, NULL); + if (unlikely(!alternatives_patched) && !__is_defined(MODULE)) return vmware_hypercall_slow(cmd, in1, 0, 0, 0, out1, out2, NULL, NULL, NULL); @@ -121,6 +150,10 @@ unsigned long vmware_hypercall4(unsigned long cmd, unsigned long in1, { unsigned long out0; + if (cpu_feature_enabled(X86_FEATURE_TDX_GUEST)) + return vmware_tdx_hypercall(cmd, in1, 0, 0, 0, + out1, out2, out3, NULL, NULL); + if (unlikely(!alternatives_patched) && !__is_defined(MODULE)) return vmware_hypercall_slow(cmd, in1, 0, 0, 0, out1, out2, out3, NULL, NULL); @@ -143,6 +176,10 @@ unsigned long vmware_hypercall5(unsigned long cmd, unsigned long in1, { unsigned long out0; + if (cpu_feature_enabled(X86_FEATURE_TDX_GUEST)) + return vmware_tdx_hypercall(cmd, in1, in3, in4, in5, + NULL, out2, NULL, NULL, NULL); + if (unlikely(!alternatives_patched) && !__is_defined(MODULE)) return vmware_hypercall_slow(cmd, in1, in3, in4, in5, NULL, out2, NULL, NULL, NULL); @@ -167,6 +204,10 @@ unsigned long vmware_hypercall6(unsigned long cmd, unsigned long in1, { unsigned long out0; + if (cpu_feature_enabled(X86_FEATURE_TDX_GUEST)) + return vmware_tdx_hypercall(cmd, in1, in3, 0, 0, + NULL, out2, out3, out4, out5); + if (unlikely(!alternatives_patched) && !__is_defined(MODULE)) return vmware_hypercall_slow(cmd, in1, in3, 0, 0, NULL, out2, out3, out4, out5); @@ -191,6 +232,10 @@ unsigned long vmware_hypercall7(unsigned long cmd, unsigned long in1, { unsigned long out0; + if (cpu_feature_enabled(X86_FEATURE_TDX_GUEST)) + return vmware_tdx_hypercall(cmd, in1, in3, in4, in5, + out1, out2, out3, NULL, NULL); + if (unlikely(!alternatives_patched) && !__is_defined(MODULE)) return vmware_hypercall_slow(cmd, in1, in3, in4, in5, out1, out2, out3, NULL, NULL); |