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8991c54091
freebsd-nq/sys/amd64/vmm/intel/vmcs.h
Eitan Adler 7a22215c53 Fix undefined behavior: (1 << 31) is not defined as 1 is an int and this 
shifts into the sign bit.  Instead use (1U << 31) which gets the
expected result.

This fix is not ideal as it assumes a 32 bit int, but does fix the issue
for most cases.

A similar change was made in OpenBSD.

Discussed with:	-arch, rdivacky
Reviewed by:	cperciva
2013-11-30 22:17:27 +00:00

350 lines
12 KiB
C
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/*-
* Copyright (c) 2011 NetApp, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _VMCS_H_
#define _VMCS_H_
#ifdef _KERNEL
struct vmcs {
uint32_t identifier;
uint32_t abort_code;
char _impl_specific[PAGE_SIZE - sizeof(uint32_t) * 2];
};
CTASSERT(sizeof(struct vmcs) == PAGE_SIZE);
/* MSR save region is composed of an array of 'struct msr_entry' */
struct msr_entry {
uint32_t index;
uint32_t reserved;
uint64_t val;
};
int vmcs_set_msr_save(struct vmcs *vmcs, u_long g_area, u_int g_count);
int vmcs_set_defaults(struct vmcs *vmcs, u_long host_rip, u_long host_rsp,
uint64_t eptp,
uint32_t pinbased_ctls, uint32_t procbased_ctls,
uint32_t procbased_ctls2, uint32_t exit_ctls,
uint32_t entry_ctls, u_long msr_bitmap,
uint16_t vpid);
int vmcs_getreg(struct vmcs *vmcs, int running, int ident, uint64_t *rv);
int vmcs_setreg(struct vmcs *vmcs, int running, int ident, uint64_t val);
int vmcs_getdesc(struct vmcs *vmcs, int ident,
struct seg_desc *desc);
int vmcs_setdesc(struct vmcs *vmcs, int ident,
struct seg_desc *desc);
uint64_t vmcs_read(uint32_t encoding);
#define vmexit_instruction_length() vmcs_read(VMCS_EXIT_INSTRUCTION_LENGTH)
#define vmcs_guest_rip() vmcs_read(VMCS_GUEST_RIP)
#define vmcs_instruction_error() vmcs_read(VMCS_INSTRUCTION_ERROR)
#define vmcs_exit_reason() (vmcs_read(VMCS_EXIT_REASON) & 0xffff)
#define vmcs_exit_qualification() vmcs_read(VMCS_EXIT_QUALIFICATION)
#define vmcs_guest_cr3() vmcs_read(VMCS_GUEST_CR3)
#define vmcs_gpa() vmcs_read(VMCS_GUEST_PHYSICAL_ADDRESS)
#define vmcs_gla() vmcs_read(VMCS_GUEST_LINEAR_ADDRESS)
#define vmcs_idt_vectoring_info() vmcs_read(VMCS_IDT_VECTORING_INFO)
#define vmcs_idt_vectoring_err() vmcs_read(VMCS_IDT_VECTORING_ERROR)
#endif /* _KERNEL */
#define VMCS_INITIAL 0xffffffffffffffff
#define VMCS_IDENT(encoding) ((encoding) | 0x80000000)
/*
* VMCS field encodings from Appendix H, Intel Architecture Manual Vol3B.
*/
#define VMCS_INVALID_ENCODING 0xffffffff
/* 16-bit control fields */
#define VMCS_VPID 0x00000000
/* 16-bit guest-state fields */
#define VMCS_GUEST_ES_SELECTOR 0x00000800
#define VMCS_GUEST_CS_SELECTOR 0x00000802
#define VMCS_GUEST_SS_SELECTOR 0x00000804
#define VMCS_GUEST_DS_SELECTOR 0x00000806
#define VMCS_GUEST_FS_SELECTOR 0x00000808
#define VMCS_GUEST_GS_SELECTOR 0x0000080A
#define VMCS_GUEST_LDTR_SELECTOR 0x0000080C
#define VMCS_GUEST_TR_SELECTOR 0x0000080E
/* 16-bit host-state fields */
#define VMCS_HOST_ES_SELECTOR 0x00000C00
#define VMCS_HOST_CS_SELECTOR 0x00000C02
#define VMCS_HOST_SS_SELECTOR 0x00000C04
#define VMCS_HOST_DS_SELECTOR 0x00000C06
#define VMCS_HOST_FS_SELECTOR 0x00000C08
#define VMCS_HOST_GS_SELECTOR 0x00000C0A
#define VMCS_HOST_TR_SELECTOR 0x00000C0C
/* 64-bit control fields */
#define VMCS_IO_BITMAP_A 0x00002000
#define VMCS_IO_BITMAP_B 0x00002002
#define VMCS_MSR_BITMAP 0x00002004
#define VMCS_EXIT_MSR_STORE 0x00002006
#define VMCS_EXIT_MSR_LOAD 0x00002008
#define VMCS_ENTRY_MSR_LOAD 0x0000200A
#define VMCS_EXECUTIVE_VMCS 0x0000200C
#define VMCS_TSC_OFFSET 0x00002010
#define VMCS_VIRTUAL_APIC 0x00002012
#define VMCS_APIC_ACCESS 0x00002014
#define VMCS_EPTP 0x0000201A
/* 64-bit read-only fields */
#define VMCS_GUEST_PHYSICAL_ADDRESS 0x00002400
/* 64-bit guest-state fields */
#define VMCS_LINK_POINTER 0x00002800
#define VMCS_GUEST_IA32_DEBUGCTL 0x00002802
#define VMCS_GUEST_IA32_PAT 0x00002804
#define VMCS_GUEST_IA32_EFER 0x00002806
#define VMCS_GUEST_IA32_PERF_GLOBAL_CTRL 0x00002808
#define VMCS_GUEST_PDPTE0 0x0000280A
#define VMCS_GUEST_PDPTE1 0x0000280C
#define VMCS_GUEST_PDPTE2 0x0000280E
#define VMCS_GUEST_PDPTE3 0x00002810
/* 64-bit host-state fields */
#define VMCS_HOST_IA32_PAT 0x00002C00
#define VMCS_HOST_IA32_EFER 0x00002C02
#define VMCS_HOST_IA32_PERF_GLOBAL_CTRL 0x00002C04
/* 32-bit control fields */
#define VMCS_PIN_BASED_CTLS 0x00004000
#define VMCS_PRI_PROC_BASED_CTLS 0x00004002
#define VMCS_EXCEPTION_BITMAP 0x00004004
#define VMCS_PF_ERROR_MASK 0x00004006
#define VMCS_PF_ERROR_MATCH 0x00004008
#define VMCS_CR3_TARGET_COUNT 0x0000400A
#define VMCS_EXIT_CTLS 0x0000400C
#define VMCS_EXIT_MSR_STORE_COUNT 0x0000400E
#define VMCS_EXIT_MSR_LOAD_COUNT 0x00004010
#define VMCS_ENTRY_CTLS 0x00004012
#define VMCS_ENTRY_MSR_LOAD_COUNT 0x00004014
#define VMCS_ENTRY_INTR_INFO 0x00004016
#define VMCS_ENTRY_EXCEPTION_ERROR 0x00004018
#define VMCS_ENTRY_INST_LENGTH 0x0000401A
#define VMCS_TPR_THRESHOLD 0x0000401C
#define VMCS_SEC_PROC_BASED_CTLS 0x0000401E
#define VMCS_PLE_GAP 0x00004020
#define VMCS_PLE_WINDOW 0x00004022
/* 32-bit read-only data fields */
#define VMCS_INSTRUCTION_ERROR 0x00004400
#define VMCS_EXIT_REASON 0x00004402
#define VMCS_EXIT_INTERRUPTION_INFO 0x00004404
#define VMCS_EXIT_INTERRUPTION_ERROR 0x00004406
#define VMCS_IDT_VECTORING_INFO 0x00004408
#define VMCS_IDT_VECTORING_ERROR 0x0000440A
#define VMCS_EXIT_INSTRUCTION_LENGTH 0x0000440C
#define VMCS_EXIT_INSTRUCTION_INFO 0x0000440E
/* 32-bit guest-state fields */
#define VMCS_GUEST_ES_LIMIT 0x00004800
#define VMCS_GUEST_CS_LIMIT 0x00004802
#define VMCS_GUEST_SS_LIMIT 0x00004804
#define VMCS_GUEST_DS_LIMIT 0x00004806
#define VMCS_GUEST_FS_LIMIT 0x00004808
#define VMCS_GUEST_GS_LIMIT 0x0000480A
#define VMCS_GUEST_LDTR_LIMIT 0x0000480C
#define VMCS_GUEST_TR_LIMIT 0x0000480E
#define VMCS_GUEST_GDTR_LIMIT 0x00004810
#define VMCS_GUEST_IDTR_LIMIT 0x00004812
#define VMCS_GUEST_ES_ACCESS_RIGHTS 0x00004814
#define VMCS_GUEST_CS_ACCESS_RIGHTS 0x00004816
#define VMCS_GUEST_SS_ACCESS_RIGHTS 0x00004818
#define VMCS_GUEST_DS_ACCESS_RIGHTS 0x0000481A
#define VMCS_GUEST_FS_ACCESS_RIGHTS 0x0000481C
#define VMCS_GUEST_GS_ACCESS_RIGHTS 0x0000481E
#define VMCS_GUEST_LDTR_ACCESS_RIGHTS 0x00004820
#define VMCS_GUEST_TR_ACCESS_RIGHTS 0x00004822
#define VMCS_GUEST_INTERRUPTIBILITY 0x00004824
#define VMCS_GUEST_ACTIVITY 0x00004826
#define VMCS_GUEST_SMBASE 0x00004828
#define VMCS_GUEST_IA32_SYSENTER_CS 0x0000482A
#define VMCS_PREEMPTION_TIMER_VALUE 0x0000482E
/* 32-bit host state fields */
#define VMCS_HOST_IA32_SYSENTER_CS 0x00004C00
/* Natural Width control fields */
#define VMCS_CR0_MASK 0x00006000
#define VMCS_CR4_MASK 0x00006002
#define VMCS_CR0_SHADOW 0x00006004
#define VMCS_CR4_SHADOW 0x00006006
#define VMCS_CR3_TARGET0 0x00006008
#define VMCS_CR3_TARGET1 0x0000600A
#define VMCS_CR3_TARGET2 0x0000600C
#define VMCS_CR3_TARGET3 0x0000600E
/* Natural Width read-only fields */
#define VMCS_EXIT_QUALIFICATION 0x00006400
#define VMCS_IO_RCX 0x00006402
#define VMCS_IO_RSI 0x00006404
#define VMCS_IO_RDI 0x00006406
#define VMCS_IO_RIP 0x00006408
#define VMCS_GUEST_LINEAR_ADDRESS 0x0000640A
/* Natural Width guest-state fields */
#define VMCS_GUEST_CR0 0x00006800
#define VMCS_GUEST_CR3 0x00006802
#define VMCS_GUEST_CR4 0x00006804
#define VMCS_GUEST_ES_BASE 0x00006806
#define VMCS_GUEST_CS_BASE 0x00006808
#define VMCS_GUEST_SS_BASE 0x0000680A
#define VMCS_GUEST_DS_BASE 0x0000680C
#define VMCS_GUEST_FS_BASE 0x0000680E
#define VMCS_GUEST_GS_BASE 0x00006810
#define VMCS_GUEST_LDTR_BASE 0x00006812
#define VMCS_GUEST_TR_BASE 0x00006814
#define VMCS_GUEST_GDTR_BASE 0x00006816
#define VMCS_GUEST_IDTR_BASE 0x00006818
#define VMCS_GUEST_DR7 0x0000681A
#define VMCS_GUEST_RSP 0x0000681C
#define VMCS_GUEST_RIP 0x0000681E
#define VMCS_GUEST_RFLAGS 0x00006820
#define VMCS_GUEST_PENDING_DBG_EXCEPTIONS 0x00006822
#define VMCS_GUEST_IA32_SYSENTER_ESP 0x00006824
#define VMCS_GUEST_IA32_SYSENTER_EIP 0x00006826
/* Natural Width host-state fields */
#define VMCS_HOST_CR0 0x00006C00
#define VMCS_HOST_CR3 0x00006C02
#define VMCS_HOST_CR4 0x00006C04
#define VMCS_HOST_FS_BASE 0x00006C06
#define VMCS_HOST_GS_BASE 0x00006C08
#define VMCS_HOST_TR_BASE 0x00006C0A
#define VMCS_HOST_GDTR_BASE 0x00006C0C
#define VMCS_HOST_IDTR_BASE 0x00006C0E
#define VMCS_HOST_IA32_SYSENTER_ESP 0x00006C10
#define VMCS_HOST_IA32_SYSENTER_EIP 0x00006C12
#define VMCS_HOST_RSP 0x00006C14
#define VMCS_HOST_RIP 0x00006c16
/*
* VM instruction error numbers
*/
#define VMRESUME_WITH_NON_LAUNCHED_VMCS 5
/*
* VMCS exit reasons
*/
#define EXIT_REASON_EXCEPTION 0
#define EXIT_REASON_EXT_INTR 1
#define EXIT_REASON_TRIPLE_FAULT 2
#define EXIT_REASON_INIT 3
#define EXIT_REASON_SIPI 4
#define EXIT_REASON_IO_SMI 5
#define EXIT_REASON_SMI 6
#define EXIT_REASON_INTR_WINDOW 7
#define EXIT_REASON_NMI_WINDOW 8
#define EXIT_REASON_TASK_SWITCH 9
#define EXIT_REASON_CPUID 10
#define EXIT_REASON_GETSEC 11
#define EXIT_REASON_HLT 12
#define EXIT_REASON_INVD 13
#define EXIT_REASON_INVLPG 14
#define EXIT_REASON_RDPMC 15
#define EXIT_REASON_RDTSC 16
#define EXIT_REASON_RSM 17
#define EXIT_REASON_VMCALL 18
#define EXIT_REASON_VMCLEAR 19
#define EXIT_REASON_VMLAUNCH 20
#define EXIT_REASON_VMPTRLD 21
#define EXIT_REASON_VMPTRST 22
#define EXIT_REASON_VMREAD 23
#define EXIT_REASON_VMRESUME 24
#define EXIT_REASON_VMWRITE 25
#define EXIT_REASON_VMXOFF 26
#define EXIT_REASON_VMXON 27
#define EXIT_REASON_CR_ACCESS 28
#define EXIT_REASON_DR_ACCESS 29
#define EXIT_REASON_INOUT 30
#define EXIT_REASON_RDMSR 31
#define EXIT_REASON_WRMSR 32
#define EXIT_REASON_INVAL_VMCS 33
#define EXIT_REASON_INVAL_MSR 34
#define EXIT_REASON_MWAIT 36
#define EXIT_REASON_MTF 37
#define EXIT_REASON_MONITOR 39
#define EXIT_REASON_PAUSE 40
#define EXIT_REASON_MCE 41
#define EXIT_REASON_TPR 43
#define EXIT_REASON_APIC 44
#define EXIT_REASON_GDTR_IDTR 46
#define EXIT_REASON_LDTR_TR 47
#define EXIT_REASON_EPT_FAULT 48
#define EXIT_REASON_EPT_MISCONFIG 49
#define EXIT_REASON_INVEPT 50
#define EXIT_REASON_RDTSCP 51
#define EXIT_REASON_VMX_PREEMPT 52
#define EXIT_REASON_INVVPID 53
#define EXIT_REASON_WBINVD 54
#define EXIT_REASON_XSETBV 55
/*
* VMCS interrupt information fields
*/
#define VMCS_INTERRUPTION_INFO_VALID (1U << 31)
#define VMCS_INTERRUPTION_INFO_HW_INTR (0 << 8)
#define VMCS_INTERRUPTION_INFO_NMI (2 << 8)
/*
* VMCS IDT-Vectoring information fields
*/
#define VMCS_IDT_VEC_VALID (1U << 31)
#define VMCS_IDT_VEC_ERRCODE_VALID (1 << 11)
/*
* VMCS Guest interruptibility field
*/
#define VMCS_INTERRUPTIBILITY_STI_BLOCKING (1 << 0)
#define VMCS_INTERRUPTIBILITY_MOVSS_BLOCKING (1 << 1)
#define VMCS_INTERRUPTIBILITY_SMI_BLOCKING (1 << 2)
#define VMCS_INTERRUPTIBILITY_NMI_BLOCKING (1 << 3)
/*
* Exit qualification for EXIT_REASON_INVAL_VMCS
*/
#define EXIT_QUAL_NMI_WHILE_STI_BLOCKING 3
/*
* Exit qualification for EPT violation
*/
#define EPT_VIOLATION_DATA_READ (1UL << 0)
#define EPT_VIOLATION_DATA_WRITE (1UL << 1)
#define EPT_VIOLATION_INST_FETCH (1UL << 2)
#define EPT_VIOLATION_GPA_READABLE (1UL << 3)
#define EPT_VIOLATION_GPA_WRITEABLE (1UL << 4)
#define EPT_VIOLATION_GPA_EXECUTABLE (1UL << 5)
#define EPT_VIOLATION_GLA_VALID (1UL << 7)
#define EPT_VIOLATION_XLAT_VALID (1UL << 8)
#endif
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