[PATCH 1/2] include/linux/hypervisor.h: Add test for running on Hyper-V

From: Michael Kelley
Date: Thu Nov 01 2018 - 13:32:12 EST


Add a test for running on Hyper-V on x86/x64.

Signed-off-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>
---
include/linux/hypervisor.h | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/include/linux/hypervisor.h b/include/linux/hypervisor.h
index fc08b43..1281f62 100644
--- a/include/linux/hypervisor.h
+++ b/include/linux/hypervisor.h
@@ -9,6 +9,7 @@

#ifdef CONFIG_X86

+#include <asm/hypervisor.h>
#include <asm/jailhouse_para.h>
#include <asm/x86_init.h>

@@ -17,6 +18,11 @@ static inline void hypervisor_pin_vcpu(int cpu)
x86_platform.hyper.pin_vcpu(cpu);
}

+static inline bool hypervisor_is_mshyperv(void)
+{
+ return hypervisor_is_type(X86_HYPER_MS_HYPERV);
+}
+
#else /* !CONFIG_X86 */

#include <linux/of.h>
@@ -30,6 +36,11 @@ static inline bool jailhouse_paravirt(void)
return of_find_compatible_node(NULL, NULL, "jailhouse,cell");
}

+static inline bool hypervisor_is_mshyperv(void)
+{
+ return false;
+}
+
#endif /* !CONFIG_X86 */

#endif /* __LINUX_HYPEVISOR_H */
--
1.8.3.1