--- /dev/null
+#; -*- fundamental -*-
+
+
+.text
+.align 4
+
+.globl v3_svm_launch
+.globl v3_stgi
+.globl v3_clgi
+
+#define SVM_ERROR .dword 0xffffffff
+#define SVM_SUCCESS .dword 0x00000000
+
+#define vmrun .byte 0x0f,0x01,0xd8
+#define vmload .byte 0x0F,0x01,0xDA
+#define vmsave .byte 0x0F,0x01,0xDB
+#define stgi .byte 0x0F,0x01,0xDC
+#define clgi .byte 0x0F,0x01,0xDD
+
+
+#ifdef __V3_32BIT__
+
+#define Save_SVM_Registers(location) \
+ pushl %eax; \
+ movl location, %eax; \
+ movl %edi, (%eax); \
+ movl %esi, 8(%eax); \
+ movl %ebp, 16(%eax); \
+ movl $0, 24(%eax); \
+ movl %ebx, 32(%eax); \
+ movl %edx, 40(%eax); \
+ movl %ecx, 48(%eax); \
+ pushl %ebx; \
+ movl 8(%esp), %ebx; \
+ movl %ebx, 56(%eax); \
+ popl %ebx; \
+ popl %eax;
+
+
+#define Restore_SVM_Registers(location) \
+ pushl %eax; \
+ movl location, %eax; \
+ movl (%eax), %edi; \
+ movl 8(%eax), %esi; \
+ movl 16(%eax), %ebp; \
+ movl 32(%eax), %ebx; \
+ movl 40(%eax), %edx; \
+ movl 48(%eax), %ecx; \
+ popl %eax;
+
+
+v3_svm_launch:
+ push %ebp;
+ movl %esp, %ebp;
+ pushf;
+ push %fs;
+ push %gs;
+ pusha;
+
+ pushl 12(%ebp);
+ pushl 8(%ebp);
+
+ Restore_SVM_Registers(8(%esp));
+ popl %eax;
+
+ vmload;
+ vmrun;
+ vmsave;
+
+ Save_SVM_Registers(4(%esp));
+
+ addl $4, %esp;
+
+ popa;
+ pop %gs;
+ pop %fs;
+ popf;
+ pop %ebp;
+ ret
+
+
+
+#elif __V3_64BIT__
+
+#define Save_SVM_Registers(location) \
+ push %rax; \
+ mov location, %rax; \
+ mov %rdi, (%rax); \
+ mov %rsi, 8(%rax); \
+ mov %rbp, 16(%rax); \
+ movq $0, 24(%rax); \
+ mov %rbx, 32(%rax); \
+ mov %rdx, 40(%rax); \
+ mov %rcx, 48(%rax); \
+ push %rbx; \
+ mov 16(%rsp), %rbx; \
+ mov %rbx, 56(%rax); \
+ pop %rbx; \
+ pop %rax;
+
+
+#define Restore_SVM_Registers(location) \
+ push %rax; \
+ mov location, %rax; \
+ mov (%rax), %rdi; \
+ mov 8(%rax), %rsi; \
+ mov 16(%rax), %rbp; \
+ mov 32(%rax), %rbx; \
+ mov 40(%rax), %rdx; \
+ mov 48(%rax), %rcx; \
+ pop %rax;
+
+
+
+
+#define PUSHA \
+ pushq %rbp; \
+ pushq %rbx; \
+ pushq %r12; \
+ pushq %r13; \
+ pushq %r14; \
+ pushq %r15;
+
+
+#define POPA \
+ popq %r15; \
+ popq %r14; \
+ popq %r13; \
+ popq %r12; \
+ popq %rbx; \
+ popq %rbp;
+
+// VMCB => RDI
+// vm_regs => RSI
+
+v3_svm_launch:
+ pushf;
+ push %fs;
+ push %gs;
+ PUSHA
+
+
+
+
+
+ pushq %rsi
+
+ movq %rdi, %rax
+ Restore_SVM_Registers(%rsi);
+
+
+
+
+ vmload;
+ vmrun;
+ vmsave;
+
+
+ Save_SVM_Registers(8(%rsp));
+
+ addq $8, %rsp
+
+
+
+
+
+ POPA
+ pop %gs;
+ pop %fs;
+ popf;
+ ret
+
+
+#endif
+
+
+v3_stgi:
+ stgi;
+ ret;
+
+v3_clgi:
+ clgi;
+ ret;
+
+
