---

yaml --- r: 324396 b: refs/heads/master c: 1f94ea8 h: refs/heads/master v: v3
git-mirror · Sep 4, 2012 · df33165 · df33165
1 parent e6bb767
commit df33165
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Showing 2 changed files with 3 additions and 24 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 82aceae4f0d42f03d9ad7d1e90389e731153898f
+refs/heads/master: 1f94ea8181a9305a5d5cf635a6a4e9ac8ee3d2c3
diff --git a/trunk/drivers/hv/vmbus_drv.c b/trunk/drivers/hv/vmbus_drv.c
@@ -34,6 +34,7 @@
 #include <linux/completion.h>
 #include <linux/hyperv.h>
 #include <asm/hyperv.h>
+#include <asm/hypervisor.h>
 #include "hyperv_vmbus.h"
 
 
@@ -719,33 +720,11 @@ static struct acpi_driver vmbus_acpi_driver = {
 	},
 };
 
-/*
- * query_hypervisor_presence
- * - Query the cpuid for presence of windows hypervisor
- */
-static int query_hypervisor_presence(void)
-{
-	unsigned int eax;
-	unsigned int ebx;
-	unsigned int ecx;
-	unsigned int edx;
-	unsigned int op;
-
-	eax = 0;
-	ebx = 0;
-	ecx = 0;
-	edx = 0;
-	op = HVCPUID_VERSION_FEATURES;
-	cpuid(op, &eax, &ebx, &ecx, &edx);
-
-	return ecx & HV_PRESENT_BIT;
-}
-
 static int __init hv_acpi_init(void)
 {
 	int ret, t;
 
-	if (!query_hypervisor_presence())
+	if (x86_hyper != &x86_hyper_ms_hyperv)
 		return -ENODEV;
 
 	init_completion(&probe_event);