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| author | K. Y. Srinivasan <kys@microsoft.com> | 2017-01-19 19:51:47 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-20 14:48:03 +0100 |
| commit | 8de8af7e0873c4fdac2205327dff922819e16657 (patch) | |
| tree | 346c075860fb77b4006ac6d88258a432387b1cf9 /arch/x86/include/asm/mshyperv.h | |
| parent | Drivers: hv: vmbus: Consolidate all Hyper-V specific clocksource code (diff) | |
| download | linux-8de8af7e0873c4fdac2205327dff922819e16657.tar.xz linux-8de8af7e0873c4fdac2205327dff922819e16657.zip | |
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/include/asm/mshyperv.h')
| -rw-r--r-- | arch/x86/include/asm/mshyperv.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h index adfe8cc9f7e3..54729e3cba47 100644 --- a/arch/x86/include/asm/mshyperv.h +++ b/arch/x86/include/asm/mshyperv.h @@ -5,6 +5,25 @@ #include <linux/interrupt.h> #include <asm/hyperv.h> +/* + * The below CPUID leaves are present if VersionAndFeatures.HypervisorPresent + * is set by CPUID(HVCPUID_VERSION_FEATURES). + */ +enum hv_cpuid_function { + HVCPUID_VERSION_FEATURES = 0x00000001, + HVCPUID_VENDOR_MAXFUNCTION = 0x40000000, + HVCPUID_INTERFACE = 0x40000001, + + /* + * The remaining functions depend on the value of + * HVCPUID_INTERFACE + */ + HVCPUID_VERSION = 0x40000002, + HVCPUID_FEATURES = 0x40000003, + HVCPUID_ENLIGHTENMENT_INFO = 0x40000004, + HVCPUID_IMPLEMENTATION_LIMITS = 0x40000005, +}; + struct ms_hyperv_info { u32 features; u32 misc_features; |