1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __KVM_X86_SGX_H
 3#define __KVM_X86_SGX_H
 4
 5#include <linux/kvm_host.h>
 6
 7#include "capabilities.h"
 8#include "vmx_ops.h"
 9
10#ifdef CONFIG_X86_SGX_KVM
11extern bool __read_mostly enable_sgx;
12
13int handle_encls(struct kvm_vcpu *vcpu);
14
15void setup_default_sgx_lepubkeyhash(void);
16void vcpu_setup_sgx_lepubkeyhash(struct kvm_vcpu *vcpu);
17
18void vmx_write_encls_bitmap(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12);
19#else
20#define enable_sgx 0
21
22static inline void setup_default_sgx_lepubkeyhash(void) { }
23static inline void vcpu_setup_sgx_lepubkeyhash(struct kvm_vcpu *vcpu) { }
24
25static inline void vmx_write_encls_bitmap(struct kvm_vcpu *vcpu,
26					  struct vmcs12 *vmcs12)
27{
28	/* Nothing to do if hardware doesn't support SGX */
29	if (cpu_has_vmx_encls_vmexit())
30		vmcs_write64(ENCLS_EXITING_BITMAP, -1ull);
31}
32#endif
33
34#endif /* __KVM_X86_SGX_H */