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authorMichael Kelley <mikelley@microsoft.com>2021-03-03 00:38:15 +0300
committerWei Liu <wei.liu@kernel.org>2021-03-08 20:32:59 +0300
commitf3c5e63c3690fc64e5a7a2b3e4f9f5ff1fa25584 (patch)
treee0d4a0756b05766589c2aeaab81fca6608df2d6f /arch/x86/hyperv
parent5e4e6ddf8d74068fd6bb7922dabcfa2c0f506c39 (diff)
downloadlinux-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.c2
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;