diff options
| author | K. Y. Srinivasan <kys@microsoft.com> | 2017-01-19 21:51:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-20 16:48:03 +0300 |
| commit | 8de8af7e0873c4fdac2205327dff922819e16657 (patch) | |
| tree | 346c075860fb77b4006ac6d88258a432387b1cf9 /arch/x86/kernel/cpu/mshyperv.c | |
| parent | 63ed4e0c67df332681ebfef6eca6852da28d6300 (diff) | |
| download | linux-8de8af7e0873c4fdac2205327dff922819e16657.tar.xz | |
Drivers: hv: vmbus: Move the extracting of Hypervisor version information
As part of the effort to separate out architecture specific code,
extract hypervisor version information in an architecture specific
file.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/kernel/cpu/mshyperv.c')
| -rw-r--r-- | arch/x86/kernel/cpu/mshyperv.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c index d3705a44971c..b5375b9497b3 100644 --- a/arch/x86/kernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -160,6 +160,11 @@ static int hv_nmi_unknown(unsigned int val, struct pt_regs *regs) static void __init ms_hyperv_init_platform(void) { + int hv_host_info_eax; + int hv_host_info_ebx; + int hv_host_info_ecx; + int hv_host_info_edx; + /* * Extract the features and hints */ @@ -170,6 +175,21 @@ static void __init ms_hyperv_init_platform(void) pr_info("HyperV: features 0x%x, hints 0x%x\n", ms_hyperv.features, ms_hyperv.hints); + /* + * Extract host information. + */ + if (cpuid_eax(HVCPUID_VENDOR_MAXFUNCTION) >= HVCPUID_VERSION) { + hv_host_info_eax = cpuid_eax(HVCPUID_VERSION); + hv_host_info_ebx = cpuid_ebx(HVCPUID_VERSION); + hv_host_info_ecx = cpuid_ecx(HVCPUID_VERSION); + hv_host_info_edx = cpuid_edx(HVCPUID_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); + } + #ifdef CONFIG_X86_LOCAL_APIC if (ms_hyperv.features & HV_X64_MSR_APIC_FREQUENCY_AVAILABLE) { /* |