Add rdpmc SVM intercept, by Bernhard Kauer.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3791 c046a42c-6fe2-441c-8c8c-71466251a162

target-i386/exec.h

@@ -199,6 +199,7 @@ void helper_sysexit(void);
 void helper_syscall(int next_eip_addend);
 void helper_sysret(int dflag);
 void helper_rdtsc(void);
+void helper_rdpmc(void);
 void helper_rdmsr(void);
 void helper_wrmsr(void);
 void helper_lsl(void);

target-i386/helper.c

@@ -2743,6 +2743,18 @@ void helper_rdtsc(void)
     EDX = (uint32_t)(val >> 32);
 }
 
+void helper_rdpmc(void)
+{
+    if ((env->cr[4] & CR4_PCE_MASK) && ((env->hflags & HF_CPL_MASK) != 0)) {
+        raise_exception(EXCP0D_GPF);
+    }
+
+    if (!svm_check_intercept_param(SVM_EXIT_RDPMC, 0)) {
+        /* currently unimplemented */
+        raise_exception_err(EXCP06_ILLOP, 0);
+    }
+}
+
 #if defined(CONFIG_USER_ONLY)
 void helper_wrmsr(void)
 {

target-i386/op.c

@@ -953,6 +953,11 @@ void OPPROTO op_rdtsc(void)
     helper_rdtsc();
 }
 
+void OPPROTO op_rdpmc(void)
+{
+    helper_rdpmc();
+}
+
 void OPPROTO op_cpuid(void)
 {
     helper_cpuid();

target-i386/translate.c

@@ -5658,6 +5658,10 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
         gen_jmp_im(pc_start - s->cs_base);
         gen_op_rdtsc();
         break;
+    case 0x133: /* rdpmc */
+        gen_jmp_im(pc_start - s->cs_base);
+        gen_op_rdpmc();
+        break;
     case 0x134: /* sysenter */
         if (CODE64(s))
             goto illegal_op;