* [PATCH AUTOSEL 4.14 29/33] x86/hyperv: Set pv_info.name to "Hyper-V"
[not found] <20191026132110.4026-1-sashal@kernel.org>
@ 2019-10-26 13:21 ` Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2019-10-26 13:21 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Andrea Parri, Michael Kelley, Thomas Gleixner, Wei Liu,
YueHaibing, Sasha Levin, linux-hyperv
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 c0201b11e9e2a..4e7adccf812d4 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -171,6 +171,10 @@ 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
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