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From: Wei Liu <wl@xen.org>
To: Xen Development List <xen-devel@lists.xenproject.org>
Cc: "Wei Liu" <liuwe@microsoft.com>, "Wei Liu" <wl@xen.org>,
	"Paul Durrant" <paul@xen.org>,
	"Andrew Cooper" <andrew.cooper3@citrix.com>,
	"Michael Kelley" <mikelley@microsoft.com>,
	"Jan Beulich" <jbeulich@suse.com>,
	"Roger Pau Monné" <roger.pau@citrix.com>
Subject: [Xen-devel] [PATCH for-next 6/7] x86/hyperv: provide hyperv_guest variable
Date: Fri, 25 Oct 2019 10:16:17 +0100	[thread overview]
Message-ID: <20191025091618.10153-7-liuwe@microsoft.com> (raw)
In-Reply-To: <20191025091618.10153-1-liuwe@microsoft.com>

It will be used to gate Hyper-V related code outside of the guest
directory.

No functional change.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
---
 xen/arch/x86/guest/hyperv/hyperv.c | 3 +++
 xen/include/asm-x86/guest/hyperv.h | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/xen/arch/x86/guest/hyperv/hyperv.c b/xen/arch/x86/guest/hyperv/hyperv.c
index 041166f344..ee649426ce 100644
--- a/xen/arch/x86/guest/hyperv/hyperv.c
+++ b/xen/arch/x86/guest/hyperv/hyperv.c
@@ -24,6 +24,7 @@
 #include <asm/guest/hyperv-tlfs.h>
 
 struct ms_hyperv_info ms_hyperv;
+bool hyperv_guest;
 
 bool __init hyperv_probe(void)
 {
@@ -50,6 +51,8 @@ bool __init hyperv_probe(void)
     ms_hyperv.max_vp_index = cpuid_eax(HYPERV_CPUID_IMPLEMENT_LIMITS);
     ms_hyperv.max_lp_index = cpuid_ebx(HYPERV_CPUID_IMPLEMENT_LIMITS);
 
+    hyperv_guest = true;
+
     return true;
 }
 
diff --git a/xen/include/asm-x86/guest/hyperv.h b/xen/include/asm-x86/guest/hyperv.h
index 0f8800040a..86f5c24ec6 100644
--- a/xen/include/asm-x86/guest/hyperv.h
+++ b/xen/include/asm-x86/guest/hyperv.h
@@ -35,6 +35,8 @@ struct ms_hyperv_info {
 };
 extern struct ms_hyperv_info ms_hyperv;
 
+extern bool hyperv_guest;
+
 extern struct hypervisor_ops hyperv_ops;
 
 bool hyperv_probe(void);
-- 
2.20.1


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  parent reply	other threads:[~2019-10-25  9:17 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-25  9:16 [Xen-devel] [PATCH for-next 0/7] Implement Hyper-V reference TSC based clock source Wei Liu
2019-10-25  9:16 ` [Xen-devel] [PATCH for-next 1/7] x86: import hyperv-tlfs.h from Linux Wei Liu
2019-12-10 15:33   ` Jan Beulich
2019-12-10 15:37     ` Durrant, Paul
2019-12-10 15:43       ` Jan Beulich
2019-12-11 11:14         ` Wei Liu
2019-12-11 11:22           ` Durrant, Paul
2019-12-11 11:28             ` Wei Liu
2019-10-25  9:16 ` [Xen-devel] [PATCH for-next 2/7] x86: fix up hyperv-tlfs.h Wei Liu
2019-12-10 15:35   ` Jan Beulich
2019-12-11 11:42     ` Wei Liu
2019-10-25  9:16 ` [Xen-devel] [PATCH for-next 3/7] x86/hyperv: extract more information from Hyper-V Wei Liu
2019-12-10 16:10   ` Jan Beulich
2019-10-25  9:16 ` [Xen-devel] [PATCH for-next 4/7] x86: add a comment regarding the location of hypervisor_probe Wei Liu
2019-12-10 16:15   ` Jan Beulich
2019-10-25  9:16 ` [Xen-devel] [PATCH for-next 5/7] x86: use running_on_hypervisor to gate hypervisor_setup Wei Liu
2019-12-10 16:17   ` Jan Beulich
2019-12-11 11:34     ` Wei Liu
2019-10-25  9:16 ` Wei Liu [this message]
2019-12-10 16:39   ` [Xen-devel] [PATCH for-next 6/7] x86/hyperv: provide hyperv_guest variable Jan Beulich
2019-10-25  9:16 ` [Xen-devel] [PATCH for-next 7/7] x86: implement Hyper-V clock source Wei Liu
2019-12-10 16:59   ` Jan Beulich
2019-12-18 12:38     ` Wei Liu
2019-12-18 12:51       ` Jan Beulich
2019-12-18 12:56         ` Andrew Cooper
2019-12-18 12:59           ` Wei Liu
2019-12-18 13:28           ` Jan Beulich
2019-12-18 13:18         ` Wei Liu
2019-12-18 13:24           ` Jan Beulich
2019-12-18 13:47             ` Wei Liu

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