[PATCH] x86/hyperv: Set pv_info.name to "Hyper-V"
From: Andrea Parri <parri.andrea@gmail.com>
Date: 2019-10-15 09:30:23
Also in:
lkml
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
Michael reported that the x86/hyperv initialization code printed 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"; with this addition, the dmesg read: [ 0.000138] Booting paravirtualized kernel on Hyper-V Reported-by: Michael Kelley <redacted> Signed-off-by: Andrea Parri <parri.andrea@gmail.com> --- arch/x86/kernel/cpu/mshyperv.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index 105844d542e5..c7d1801fa88b 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c@@ -154,6 +154,8 @@ static uint32_t __init ms_hyperv_platform(void) if (!boot_cpu_has(X86_FEATURE_HYPERVISOR)) return 0; + pv_info.name = "Hyper-V"; + cpuid(HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS, &eax, &hyp_signature[0], &hyp_signature[1], &hyp_signature[2]);
--
2.17.1