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authorJiri Kosina <jkosina@suse.cz>2022-01-10 09:49:13 +0100
committerJiri Kosina <jkosina@suse.cz>2022-01-10 09:49:13 +0100
commit8a2094d679d921d104d3296528d4fa419702ce1c (patch)
tree5feeb2f8b94eb3632109b778276ccd1007486770 /arch/x86/hyperv/hv_init.c
parent3809fe479861194e310c23ed48b010c7c0f72d22 (diff)
parentb60d3c803d7603432a08aeaf988aff53b3a5ec64 (diff)
Merge branch 'for-5.17/core' into for-linus
- support for USI style pens (Tero Kristo, Mika Westerberg) - quirk for devices that need inverted X/Y axes (Alistair Francis) - small core code cleanups and deduplication (Benjamin Tissoires)
Diffstat (limited to 'arch/x86/hyperv/hv_init.c')
-rw-r--r--arch/x86/hyperv/hv_init.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c
index 24f4a06ac46a..96eb7db31c8e 100644
--- a/arch/x86/hyperv/hv_init.c
+++ b/arch/x86/hyperv/hv_init.c
@@ -177,6 +177,9 @@ void set_hv_tscchange_cb(void (*cb)(void))
return;
}
+ if (!hv_vp_index)
+ return;
+
hv_reenlightenment_cb = cb;
/* Make sure callback is registered before we write to MSRs */
@@ -383,20 +386,13 @@ static void __init hv_get_partition_id(void)
*/
void __init hyperv_init(void)
{
- u64 guest_id, required_msrs;
+ u64 guest_id;
union hv_x64_msr_hypercall_contents hypercall_msr;
int cpuhp;
if (x86_hyper_type != X86_HYPER_MS_HYPERV)
return;
- /* Absolutely required MSRs */
- required_msrs = HV_MSR_HYPERCALL_AVAILABLE |
- HV_MSR_VP_INDEX_AVAILABLE;
-
- if ((ms_hyperv.features & required_msrs) != required_msrs)
- return;
-
if (hv_common_init())
return;