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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* nestedsvm.h: Nested Virtualization
* Copyright (c) 2011, Advanced Micro Devices, Inc
*
*/
#ifndef __ASM_X86_HVM_SVM_NESTEDSVM_H__
#define __ASM_X86_HVM_SVM_NESTEDSVM_H__
#include <xen/types.h>
struct nestedsvm {
bool ns_gif;
uint64_t ns_msr_hsavepa; /* MSR HSAVE_PA value */
/* l1 guest physical address of virtual vmcb used by prior VMRUN.
* Needed for VMCB Cleanbit emulation.
*/
uint64_t ns_ovvmcb_pa;
/* virtual tscratio holding the value l1 guest writes to the
* MSR_AMD64_TSC_RATIO MSR.
*/
uint64_t ns_tscratio;
/* Cached real intercepts of the l2 guest */
uint32_t ns_cr_intercepts;
uint32_t ns_dr_intercepts;
uint32_t ns_exception_intercepts;
uint32_t ns_general1_intercepts;
uint32_t ns_general2_intercepts;
/* Cached real MSR permission bitmaps of the l2 guest */
unsigned long *ns_cached_msrpm;
/* Merged MSR permission bitmap */
unsigned long *ns_merged_msrpm;
/* guest physical address of virtual io permission map */
paddr_t ns_iomap_pa, ns_oiomap_pa;
/* Shadow io permission map */
unsigned long *ns_iomap;
uint64_t ns_cr0; /* Cached guest_cr[0] of l1 guest while l2 guest runs.
* Needed to handle FPU context switching */
/* Cache guest cr3/host cr3 the guest sets up for the l2 guest.
* Used by Shadow-on-Shadow and Nested-on-Nested.
* ns_vmcb_guestcr3: in l2 guest physical address space and points to
* the l2 guest page table
* ns_vmcb_hostcr3: in l1 guest physical address space and points to
* the l1 guest nested page table
*/
uint64_t ns_vmcb_guestcr3, ns_vmcb_hostcr3;
uint32_t ns_guest_asid;
bool ns_hap_enabled;
/* Only meaningful when vmexit_pending flag is set */
struct {
uint64_t exitcode; /* native exitcode to inject into l1 guest */
uint64_t exitinfo1; /* additional information to the exitcode */
uint64_t exitinfo2; /* additional information to the exitcode */
} ns_vmexit;
union {
uint32_t bytes;
struct {
uint32_t rflagsif: 1;
uint32_t vintrmask: 1;
uint32_t reserved: 30;
} fields;
} ns_hostflags;
};
#endif /* ASM_X86_HVM_SVM_NESTEDSVM_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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