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 */