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4b9819a506
Use static calls to invoke nested virtualization ops, as many of the calls are in relatively hot paths when L2 is active, e.g. checking for events, and because there's no reason not use static calls these days. Opportunistically use a RET0 static call for get_evmcs_version() instead of manually checking for a non-NULL vendor hook. Link: https://patch.msgid.link/20260630202828.440724-3-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#if !defined(KVM_X86_NESTED_OP) || \
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!defined(KVM_X86_NESTED_OP_OPTIONAL) || \
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!defined(KVM_X86_NESTED_OP_OPTIONAL_RET0)
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#error Missing one or more KVM_X86_NESTED_OP #defines
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#else
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/*
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* KVM_X86_NESTED_OP() and KVM_X86_NESTED_OP_OPTIONAL() are used to help
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* generate both DECLARE/DEFINE_STATIC_CALL() invocations and
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* "static_call_update()" calls.
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*
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* KVM_X86_NESTED_OP_OPTIONAL() can be used for those functions that can have
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* a NULL definition. KVM_X86_NESTED_OP_OPTIONAL_RET0() can be used likewise
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* to make a definition optional, but in this case the default will
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* be __static_call_return0.
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*/
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KVM_X86_NESTED_OP(leave_nested)
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KVM_X86_NESTED_OP(is_exception_vmexit)
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KVM_X86_NESTED_OP(check_events)
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KVM_X86_NESTED_OP_OPTIONAL_RET0(has_events)
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KVM_X86_NESTED_OP(triple_fault)
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KVM_X86_NESTED_OP(get_state)
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KVM_X86_NESTED_OP(set_state)
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KVM_X86_NESTED_OP(get_nested_state_pages)
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KVM_X86_NESTED_OP_OPTIONAL_RET0(write_log_dirty)
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KVM_X86_NESTED_OP(translate_nested_gpa)
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#ifdef CONFIG_KVM_HYPERV
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KVM_X86_NESTED_OP_OPTIONAL(enable_evmcs)
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KVM_X86_NESTED_OP_OPTIONAL_RET0(get_evmcs_version)
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KVM_X86_NESTED_OP(hv_inject_synthetic_vmexit_post_tlb_flush)
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#endif
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#endif
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#undef KVM_X86_NESTED_OP
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#undef KVM_X86_NESTED_OP_OPTIONAL
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#undef KVM_X86_NESTED_OP_OPTIONAL_RET0
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