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    SubjectRe: [PATCH Part1 RFC v4 03/36] x86/sev: Add support for hypervisor feature VMGEXIT
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    On 8/10/21 6:22 AM, Borislav Petkov wrote:
    >
    > SVM_VMGEXIT_HV_FEATURES
    >

    Noted.

    >>
    >> +/* Bitmap of SEV features supported by the hypervisor */
    >> +u64 sev_hv_features __section(".data..ro_after_init") = 0;
    >
    > __ro_after_init

    Noted.

    >
    >> diff --git a/arch/x86/kernel/sev.c b/arch/x86/kernel/sev.c
    >> index 66b7f63ad041..540b81ac54c9 100644
    >> --- a/arch/x86/kernel/sev.c
    >> +++ b/arch/x86/kernel/sev.c
    >> @@ -96,6 +96,9 @@ struct ghcb_state {
    >> static DEFINE_PER_CPU(struct sev_es_runtime_data*, runtime_data);
    >> DEFINE_STATIC_KEY_FALSE(sev_es_enable_key);
    >>
    >> +/* Bitmap of SEV features supported by the hypervisor */
    >> +EXPORT_SYMBOL(sev_hv_features);
    >
    > Why is this exported and why not a _GPL export?
    >

    I was thinking that some driver may need it in future, but nothing in my
    series needs it yet. I will drop it and we can revisit it later.

    -Brijesh

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