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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Andrea Parri <parri.andrea@gmail.com>,
	Michael Kelley <mikelley@microsoft.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Wei Liu <wei.liu@kernel.org>, YueHaibing <yuehaibing@huawei.com>,
	Sasha Levin <sashal@kernel.org>,
	linux-hyperv@vger.kernel.org
Subject: [PATCH AUTOSEL 5.3 89/99] x86/hyperv: Set pv_info.name to "Hyper-V"
Date: Sat, 26 Oct 2019 09:15:50 -0400	[thread overview]
Message-ID: <20191026131600.2507-89-sashal@kernel.org> (raw)
In-Reply-To: <20191026131600.2507-1-sashal@kernel.org>

From: Andrea Parri <parri.andrea@gmail.com>

[ Upstream commit f7c0f50f1857c1cf013466fcea4dc98d116bf456 ]

Michael reported that the x86/hyperv initialization code prints the
following dmesg when running in a VM on Hyper-V:

  [    0.000738] Booting paravirtualized kernel on bare hardware

Let the x86/hyperv initialization code set pv_info.name to "Hyper-V" so
dmesg reports correctly:

  [    0.000172] Booting paravirtualized kernel on Hyper-V

[ tglx: Folded build fix provided by Yue ]

Reported-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Andrea Parri <parri.andrea@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Wei Liu <wei.liu@kernel.org>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Cc: YueHaibing <yuehaibing@huawei.com>
Link: https://lkml.kernel.org/r/20191015103502.13156-1-parri.andrea@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/cpu/mshyperv.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index 062f77279ce3b..b3f164bf8eefa 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -215,6 +215,10 @@ static void __init ms_hyperv_init_platform(void)
 	int hv_host_info_ecx;
 	int hv_host_info_edx;
 
+#ifdef CONFIG_PARAVIRT
+	pv_info.name = "Hyper-V";
+#endif
+
 	/*
 	 * Extract the features and hints
 	 */
-- 
2.20.1


           reply	other threads:[~2019-10-26 13:32 UTC|newest]

Thread overview: expand[flat|nested]  mbox.gz  Atom feed
 [parent not found: <20191026131600.2507-1-sashal@kernel.org>]

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