[PATCH 1/1] x86/hyperv: Output host build info as normal Windows version number

From: Michael Kelley
Date: Tue Mar 08 2022 - 14:23:03 EST


Hyper-V provides host version number information that is output in
text form by a Linux guest when it boots. For whatever reason, the
formatting has historically been non-standard. Change it to output
in normal Windows version format for better readability.

Similar code for ARM64 guests already outputs in normal Windows
version format.

Signed-off-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>
---
arch/x86/kernel/cpu/mshyperv.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index 5a99f99..6c4b6c6 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -309,10 +309,10 @@ static void __init ms_hyperv_init_platform(void)
hv_host_info_ecx = cpuid_ecx(HYPERV_CPUID_VERSION);
hv_host_info_edx = cpuid_edx(HYPERV_CPUID_VERSION);

- pr_info("Hyper-V Host Build:%d-%d.%d-%d-%d.%d\n",
- hv_host_info_eax, hv_host_info_ebx >> 16,
- hv_host_info_ebx & 0xFFFF, hv_host_info_ecx,
- hv_host_info_edx >> 24, hv_host_info_edx & 0xFFFFFF);
+ pr_info("Hyper-V: Host Build %d.%d.%d.%d-%d-%d\n",
+ hv_host_info_ebx >> 16, hv_host_info_ebx & 0xFFFF,
+ hv_host_info_eax, hv_host_info_edx & 0xFFFFFF,
+ hv_host_info_ecx, hv_host_info_edx >> 24);
}

if (ms_hyperv.features & HV_ACCESS_FREQUENCY_MSRS &&
--
1.8.3.1