diff options
| author | Linus Walleij <[email protected]> | 2021-11-27 00:54:16 +0100 |
|---|---|---|
| committer | Linus Walleij <[email protected]> | 2021-11-27 00:54:16 +0100 |
| commit | 2448eab44034d9603c97ca17760a53d4d6e4b60c (patch) | |
| tree | 7f323cea55258e94e0c7c70b63d02c9effb00c1f /arch/x86/hyperv/hv_init.c | |
| parent | deee705a1c9cce9c7eb699d529f1c0b3c80d339d (diff) | |
| parent | 136057256686de39cc3a07c2e39ef6bc43003ff6 (diff) | |
Merge tag 'v5.16-rc2' into devel
Linux 5.16-rc2 is needed because nonurgent fixes headed
for next are strongly textually dependent on a fix that
was applied for rc2.
Signed-off-by: Linus Walleij <[email protected]>
Diffstat (limited to 'arch/x86/hyperv/hv_init.c')
| -rw-r--r-- | arch/x86/hyperv/hv_init.c | 12 |
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; |