From: Michael Kelley <mikelley@microsoft.com>
To: "virtualization@lists.linux-foundation.org"
<virtualization@lists.linux-foundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"daniel.lezcano@linaro.org" <daniel.lezcano@linaro.org>,
"jgross@suse.com" <jgross@suse.com>,
"akataria@vmware.com" <akataria@vmware.com>,
"olaf@aepfle.de" <olaf@aepfle.de>,
"apw@canonical.com" <apw@canonical.com>,
vkuznets <vkuznets@redhat.com>,
"jasowang@redhat.com" <jasowang@redhat.com>,
"marcelo.cerri@canonical.com" <marcelo.cerri@canonical.com>,
KY Srinivasan <kys@microsoft.com>
Cc: Michael Kelley <mikelley@microsoft.com>
Subject: [PATCH 1/2] include/linux/hypervisor.h: Add test for running on Hyper-V
Date: Thu, 1 Nov 2018 17:32:04 +0000 [thread overview]
Message-ID: <1541093480-10539-1-git-send-email-mikelley@microsoft.com> (raw)
Add a test for running on Hyper-V on x86/x64.
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
---
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
reply other threads:[~2018-11-01 17:32 UTC|newest]
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