[PATCH AUTOSEL 4.14 29/33] x86/hyperv: Set pv_info.name to "Hyper-V"
From: Sasha Levin <sashal@kernel.org>
Date: 2019-10-26 13:26:13
Also in:
lkml, stable
Subsystem:
hyper-v/azure core and drivers, the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
"K. Y. Srinivasan", Haiyang Zhang, Wei Liu, Dexuan Cui, Long Li, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
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 <redacted> Signed-off-by: Andrea Parri <parri.andrea@gmail.com> Signed-off-by: Thomas Gleixner <redacted> Reviewed-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Michael Kelley <redacted> Cc: YueHaibing <redacted> 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 */
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2.20.1