X-Git-Url: http://wien.tomnetworks.com/gitweb/?p=seabios.git;a=blobdiff_plain;f=src%2Futil.c;h=53ef84ded96dfb230c3162b4bafded88fa3394cf;hp=ed73d632f11e619d1e83fbba7d7c581f82adc481;hb=9eb210023718c65a1300cb0b768ba478b0a2b211;hpb=e216ce8fb5470a375756574d65723cbf764a2919

diff --git a/src/util.c b/src/util.c
index ed73d63..53ef84d 100644
--- a/src/util.c
+++ b/src/util.c
@@ -8,6 +8,22 @@
 #include "bregs.h" // struct bregs
 #include "config.h" // BUILD_STACK_ADDR
 
+void
+cpuid(u32 index, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
+{
+    // Check for cpu id
+    u32 origflags = save_flags();
+    restore_flags(origflags ^ F_ID);
+    u32 newflags = save_flags();
+    restore_flags(origflags);
+
+    if (((origflags ^ newflags) & F_ID) != F_ID)
+        // no cpuid
+        *eax = *ebx = *ecx = *edx = 0;
+    else
+        __cpuid(index, eax, ebx, ecx, edx);
+}
+
 
 /****************************************************************
  * 16bit calls