diff options
| author | Michael Kelley <mikelley@microsoft.com> | 2021-03-03 00:38:15 +0300 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2021-03-08 20:32:59 +0300 |
| commit | f3c5e63c3690fc64e5a7a2b3e4f9f5ff1fa25584 (patch) | |
| tree | e0d4a0756b05766589c2aeaab81fca6608df2d6f /arch/x86/hyperv | |
| parent | 5e4e6ddf8d74068fd6bb7922dabcfa2c0f506c39 (diff) | |
| download | linux-f3c5e63c3690fc64e5a7a2b3e4f9f5ff1fa25584.tar.xz | |
Drivers: hv: Redo Hyper-V synthetic MSR get/set functions
Current code defines a separate get and set macro for each Hyper-V
synthetic MSR used by the VMbus driver. Furthermore, the get macro
can't be converted to a standard function because the second argument
is modified in place, which is somewhat bad form.
Redo this by providing a single get and a single set function that
take a parameter specifying the MSR to be operated on. Fixup usage
of the get function. Calling locations are no more complex than before,
but the code under arch/x86 and the upcoming code under arch/arm64
is significantly simplified.
Also standardize the names of Hyper-V synthetic MSRs that are
architecture neutral. But keep the old x86-specific names as aliases
that can be removed later when all references (particularly in KVM
code) have been cleaned up in a separate patch series.
No functional change.
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/1614721102-2241-4-git-send-email-mikelley@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'arch/x86/hyperv')
| -rw-r--r-- | arch/x86/hyperv/hv_init.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c index 4bdb3443b25e..94d52c5cf255 100644 --- a/arch/x86/hyperv/hv_init.c +++ b/arch/x86/hyperv/hv_init.c @@ -75,7 +75,7 @@ static int hv_cpu_init(unsigned int cpu) *output_arg = page_address(pg + 1); } - hv_get_vp_index(msr_vp_index); + msr_vp_index = hv_get_register(HV_REGISTER_VP_INDEX); hv_vp_index[smp_processor_id()] = msr_vp_index; |