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/* SPDX-License-Identifier: GPL-2.0 */
/*
* nestedsvm.h: Nested Virtualization
*
* Copyright (c) 2011, Advanced Micro Devices, Inc
*/
#ifndef __X86_HVM_SVM_NESTEDHVM_PRIV_H__
#define __X86_HVM_SVM_NESTEDHVM_PRIV_H__
#include <xen/mm.h>
#include <xen/types.h>
#include <asm/hvm/vcpu.h>
#include <asm/hvm/hvm.h>
#include <asm/hvm/nestedhvm.h>
#include <asm/msr-index.h>
/* SVM specific intblk types, cannot be an enum because gcc 4.5 complains */
/* GIF cleared */
#define hvm_intblk_svm_gif hvm_intblk_arch
#define vcpu_nestedsvm(v) (vcpu_nestedhvm(v).u.nsvm)
/* True when l1 guest enabled SVM in EFER */
#define nsvm_efer_svm_enabled(v) \
(!!((v)->arch.hvm.guest_efer & EFER_SVME))
int nestedsvm_vmcb_map(struct vcpu *v, uint64_t vmcbaddr);
void nestedsvm_vmexit_defer(struct vcpu *v,
uint64_t exitcode, uint64_t exitinfo1, uint64_t exitinfo2);
enum nestedhvm_vmexits
nestedsvm_vmexit_n2n1(struct vcpu *v, struct cpu_user_regs *regs);
enum nestedhvm_vmexits
nestedsvm_check_intercepts(struct vcpu *v, struct cpu_user_regs *regs,
uint64_t exitcode);
void svm_nested_features_on_efer_update(struct vcpu *v);
/* Interface methods */
void cf_check nsvm_vcpu_destroy(struct vcpu *v);
int cf_check nsvm_vcpu_initialise(struct vcpu *v);
int cf_check nsvm_vcpu_reset(struct vcpu *v);
int nsvm_vcpu_vmrun(struct vcpu *v, struct cpu_user_regs *regs);
int cf_check nsvm_vcpu_vmexit_event(struct vcpu *v,
const struct x86_event *event);
uint64_t cf_check nsvm_vcpu_hostcr3(struct vcpu *v);
bool cf_check nsvm_vmcb_guest_intercepts_event(
struct vcpu *v, unsigned int vector, int errcode);
bool cf_check nsvm_vmcb_hap_enabled(struct vcpu *v);
enum hvm_intblk cf_check nsvm_intr_blocked(struct vcpu *v);
/* Interrupts, vGIF */
void svm_vmexit_do_clgi(struct cpu_user_regs *regs, struct vcpu *v);
void svm_vmexit_do_stgi(struct cpu_user_regs *regs, struct vcpu *v);
bool nestedsvm_gif_isset(struct vcpu *v);
int cf_check nsvm_hap_walk_L1_p2m(
struct vcpu *v, paddr_t L2_gpa, paddr_t *L1_gpa, unsigned int *page_order,
uint8_t *p2m_acc, struct npfec npfec);
#define NSVM_INTR_NOTHANDLED 3
#define NSVM_INTR_NOTINTERCEPTED 2
#define NSVM_INTR_FORCEVMEXIT 1
#define NSVM_INTR_MASKED 0
int nestedsvm_vcpu_interrupt(struct vcpu *v, const struct hvm_intack intack);
#endif /* __X86_HVM_SVM_NESTEDHVM_PRIV_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/
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