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| author |   Vitaly Kuznetsov <vkuznets@redhat.com> | 2020-10-14 16:33:46 +0200 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2020-10-31 10:27:58 -0400 |
| commit | 064eedf2c50f692088e1418c553084bf9c1432f8 (patch) | |
| tree | 67e91cd83bf7e66d5ec00c4268f550b898aca30f /arch/x86/kvm/vmx/vmx.c | |
| parent | KVM: selftests: test behavior of unmapped L2 APIC-access address (diff) | |
| download | linux-dev-064eedf2c50f692088e1418c553084bf9c1432f8.tar.xz linux-dev-064eedf2c50f692088e1418c553084bf9c1432f8.zip | |
KVM: VMX: eVMCS: make evmcs_sanitize_exec_ctrls() work again
It was noticed that evmcs_sanitize_exec_ctrls() is not being executed
nowadays despite the code checking 'enable_evmcs' static key looking
correct. Turns out, static key magic doesn't work in '__init' section
(and it is unclear when things changed) but setup_vmcs_config() is called
only once per CPU so we don't really need it to. Switch to checking
'enlightened_vmcs' instead, it is supposed to be in sync with
'enable_evmcs'.
Opportunistically make evmcs_sanitize_exec_ctrls '__init' and drop unneeded
extra newline from it.
Reported-by: Yang Weijiang <weijiang.yang@intel.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20201014143346.2430936-1-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index d14c94d0aff1..61d1cecb6f12 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -2560,8 +2560,10 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf, vmcs_conf->vmexit_ctrl = _vmexit_control; vmcs_conf->vmentry_ctrl = _vmentry_control; - if (static_branch_unlikely(&enable_evmcs)) +#if IS_ENABLED(CONFIG_HYPERV) + if (enlightened_vmcs) evmcs_sanitize_exec_ctrls(vmcs_conf); +#endif return 0; } |