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| author | Anirudh Rayabharam <anrayabh@linux.microsoft.com> | 2022-10-27 11:57:28 +0200 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2022-11-03 16:50:28 +0100 |
| commit | 4ad1aa571214e8d6468a1806794d987b374b5a08 (patch) | |
| tree | 8a6fd76aca1877a23b8f9713f6b282862e380ac0 /include/asm-generic | |
| parent | Drivers: hv: fix repeated words in comments (diff) | |
| download | linux-4ad1aa571214e8d6468a1806794d987b374b5a08.tar.xz linux-4ad1aa571214e8d6468a1806794d987b374b5a08.zip | |
clocksource/drivers/hyperv: add data structure for reference TSC MSR
Add a data structure to represent the reference TSC MSR similar to
other MSRs. This simplifies the code for updating the MSR.
Signed-off-by: Anirudh Rayabharam <anrayabh@linux.microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20221027095729.1676394-2-anrayabh@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/hyperv-tlfs.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/asm-generic/hyperv-tlfs.h b/include/asm-generic/hyperv-tlfs.h index fdce7a4cfc6f..b17c6eeb9afa 100644 --- a/include/asm-generic/hyperv-tlfs.h +++ b/include/asm-generic/hyperv-tlfs.h @@ -102,6 +102,15 @@ struct ms_hyperv_tsc_page { volatile s64 tsc_offset; } __packed; +union hv_reference_tsc_msr { + u64 as_uint64; + struct { + u64 enable:1; + u64 reserved:11; + u64 pfn:52; + } __packed; +}; + /* * The guest OS needs to register the guest ID with the hypervisor. * The guest ID is a 64 bit entity and the structure of this ID is |