2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2011 NetApp, Inc.
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40 register_t guest_rdi; /* Guest state */
62 register_t host_r15; /* Host state */
75 uint64_t host_debugctl;
81 * The pmap needs to be deactivated in vmx_enter_guest()
82 * so keep a copy of the 'pmap' in each vmxctx.
95 uint64_t nextrip; /* next instruction to be executed by guest */
96 int lastcpu; /* host cpu that this 'vcpu' last ran on */
101 uint32_t reg[PAGE_SIZE / 4];
103 CTASSERT(sizeof(struct apic_page) == PAGE_SIZE);
105 /* Posted Interrupt Descriptor (described in section 29.6 of the Intel SDM) */
111 CTASSERT(sizeof(struct pir_desc) == 64);
113 /* Index into the 'guest_msrs[]' array */
122 GUEST_MSR_NUM /* must be the last enumeration */
125 /* virtual machine softc */
127 struct vmcs vmcs[VM_MAXCPU]; /* one vmcs per virtual cpu */
128 struct apic_page apic_page[VM_MAXCPU]; /* one apic page per vcpu */
129 char msr_bitmap[PAGE_SIZE];
130 struct pir_desc pir_desc[VM_MAXCPU];
131 uint64_t guest_msrs[VM_MAXCPU][GUEST_MSR_NUM];
132 struct vmxctx ctx[VM_MAXCPU];
133 struct vmxcap cap[VM_MAXCPU];
134 struct vmxstate state[VM_MAXCPU];
137 long eptgen[MAXCPU]; /* cached pmap->pm_eptgen */
138 struct vm_mtrr mtrr[VM_MAXCPU];
140 CTASSERT((offsetof(struct vmx, vmcs) & PAGE_MASK) == 0);
141 CTASSERT((offsetof(struct vmx, msr_bitmap) & PAGE_MASK) == 0);
142 CTASSERT((offsetof(struct vmx, pir_desc[0]) & 63) == 0);
144 #define VMX_GUEST_VMEXIT 0
145 #define VMX_VMRESUME_ERROR 1
146 #define VMX_VMLAUNCH_ERROR 2
147 int vmx_enter_guest(struct vmxctx *ctx, struct vmx *vmx, int launched);
148 void vmx_call_isr(uintptr_t entry);
150 u_long vmx_fix_cr0(u_long cr0);
151 u_long vmx_fix_cr4(u_long cr4);
153 int vmx_set_tsc_offset(struct vmx *vmx, int vcpu, uint64_t offset);
155 extern char vmx_exit_guest[];
156 extern char vmx_exit_guest_flush_rsb[];
159 vmx_have_msr_tsc_aux(struct vmx *vmx)
161 int rdpid_rdtscp_bits = ((1 << VM_CAP_RDPID) | (1 << VM_CAP_RDTSCP));
164 * Since the values of these bits are uniform across all vCPUs
165 * (see discussion in vmx_modinit() and initialization of these bits
166 * in vmx_init()), just always use vCPU-zero's capability set and
167 * remove the need to require a vcpuid argument.
169 return ((vmx->cap[0].set & rdpid_rdtscp_bits) != 0);