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2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d 
 kernel/arch/x86/include/asm/vmx.h
....@@ -1,25 +1,12 @@
1
+/* SPDX-License-Identifier: GPL-2.0-only */
12 /*
23  * vmx.h: VMX Architecture related definitions
34  * Copyright (c) 2004, Intel Corporation.
4
- *
5
- * This program is free software; you can redistribute it and/or modify it
6
- * under the terms and conditions of the GNU General Public License,
7
- * version 2, as published by the Free Software Foundation.
8
- *
9
- * This program is distributed in the hope it will be useful, but WITHOUT
10
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12
- * more details.
13
- *
14
- * You should have received a copy of the GNU General Public License along with
15
- * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
16
- * Place - Suite 330, Boston, MA 02111-1307 USA.
175  *
186  * A few random additions are:
197  * Copyright (C) 2006 Qumranet
208  *    Avi Kivity <avi@qumranet.com>
219  *    Yaniv Kamay <yaniv@qumranet.com>
22
- *
2310  */
2411 #ifndef VMX_H
2512 #define VMX_H
....@@ -28,63 +15,70 @@
2815 #include <linux/bitops.h>
2916 #include <linux/types.h>
3017 #include <uapi/asm/vmx.h>
18
+#include <asm/vmxfeatures.h>
19
+
20
+#define VMCS_CONTROL_BIT(x)	BIT(VMX_FEATURE_##x & 0x1f)
3121 
3222 /*
3323  * Definitions of Primary Processor-Based VM-Execution Controls.
3424  */
35
-#define CPU_BASED_VIRTUAL_INTR_PENDING          0x00000004
36
-#define CPU_BASED_USE_TSC_OFFSETING             0x00000008
37
-#define CPU_BASED_HLT_EXITING                   0x00000080
38
-#define CPU_BASED_INVLPG_EXITING                0x00000200
39
-#define CPU_BASED_MWAIT_EXITING                 0x00000400
40
-#define CPU_BASED_RDPMC_EXITING                 0x00000800
41
-#define CPU_BASED_RDTSC_EXITING                 0x00001000
42
-#define CPU_BASED_CR3_LOAD_EXITING		0x00008000
43
-#define CPU_BASED_CR3_STORE_EXITING		0x00010000
44
-#define CPU_BASED_CR8_LOAD_EXITING              0x00080000
45
-#define CPU_BASED_CR8_STORE_EXITING             0x00100000
46
-#define CPU_BASED_TPR_SHADOW                    0x00200000
47
-#define CPU_BASED_VIRTUAL_NMI_PENDING		0x00400000
48
-#define CPU_BASED_MOV_DR_EXITING                0x00800000
49
-#define CPU_BASED_UNCOND_IO_EXITING             0x01000000
50
-#define CPU_BASED_USE_IO_BITMAPS                0x02000000
51
-#define CPU_BASED_MONITOR_TRAP_FLAG             0x08000000
52
-#define CPU_BASED_USE_MSR_BITMAPS               0x10000000
53
-#define CPU_BASED_MONITOR_EXITING               0x20000000
54
-#define CPU_BASED_PAUSE_EXITING                 0x40000000
55
-#define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS   0x80000000
25
+#define CPU_BASED_INTR_WINDOW_EXITING           VMCS_CONTROL_BIT(INTR_WINDOW_EXITING)
26
+#define CPU_BASED_USE_TSC_OFFSETTING            VMCS_CONTROL_BIT(USE_TSC_OFFSETTING)
27
+#define CPU_BASED_HLT_EXITING                   VMCS_CONTROL_BIT(HLT_EXITING)
28
+#define CPU_BASED_INVLPG_EXITING                VMCS_CONTROL_BIT(INVLPG_EXITING)
29
+#define CPU_BASED_MWAIT_EXITING                 VMCS_CONTROL_BIT(MWAIT_EXITING)
30
+#define CPU_BASED_RDPMC_EXITING                 VMCS_CONTROL_BIT(RDPMC_EXITING)
31
+#define CPU_BASED_RDTSC_EXITING                 VMCS_CONTROL_BIT(RDTSC_EXITING)
32
+#define CPU_BASED_CR3_LOAD_EXITING		VMCS_CONTROL_BIT(CR3_LOAD_EXITING)
33
+#define CPU_BASED_CR3_STORE_EXITING		VMCS_CONTROL_BIT(CR3_STORE_EXITING)
34
+#define CPU_BASED_CR8_LOAD_EXITING              VMCS_CONTROL_BIT(CR8_LOAD_EXITING)
35
+#define CPU_BASED_CR8_STORE_EXITING             VMCS_CONTROL_BIT(CR8_STORE_EXITING)
36
+#define CPU_BASED_TPR_SHADOW                    VMCS_CONTROL_BIT(VIRTUAL_TPR)
37
+#define CPU_BASED_NMI_WINDOW_EXITING		VMCS_CONTROL_BIT(NMI_WINDOW_EXITING)
38
+#define CPU_BASED_MOV_DR_EXITING                VMCS_CONTROL_BIT(MOV_DR_EXITING)
39
+#define CPU_BASED_UNCOND_IO_EXITING             VMCS_CONTROL_BIT(UNCOND_IO_EXITING)
40
+#define CPU_BASED_USE_IO_BITMAPS                VMCS_CONTROL_BIT(USE_IO_BITMAPS)
41
+#define CPU_BASED_MONITOR_TRAP_FLAG             VMCS_CONTROL_BIT(MONITOR_TRAP_FLAG)
42
+#define CPU_BASED_USE_MSR_BITMAPS               VMCS_CONTROL_BIT(USE_MSR_BITMAPS)
43
+#define CPU_BASED_MONITOR_EXITING               VMCS_CONTROL_BIT(MONITOR_EXITING)
44
+#define CPU_BASED_PAUSE_EXITING                 VMCS_CONTROL_BIT(PAUSE_EXITING)
45
+#define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS   VMCS_CONTROL_BIT(SEC_CONTROLS)
5646 
5747 #define CPU_BASED_ALWAYSON_WITHOUT_TRUE_MSR	0x0401e172
5848 
5949 /*
6050  * Definitions of Secondary Processor-Based VM-Execution Controls.
6151  */
62
-#define SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES 0x00000001
63
-#define SECONDARY_EXEC_ENABLE_EPT               0x00000002
64
-#define SECONDARY_EXEC_DESC			0x00000004
65
-#define SECONDARY_EXEC_RDTSCP			0x00000008
66
-#define SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE   0x00000010
67
-#define SECONDARY_EXEC_ENABLE_VPID              0x00000020
68
-#define SECONDARY_EXEC_WBINVD_EXITING		0x00000040
69
-#define SECONDARY_EXEC_UNRESTRICTED_GUEST	0x00000080
70
-#define SECONDARY_EXEC_APIC_REGISTER_VIRT       0x00000100
71
-#define SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY    0x00000200
72
-#define SECONDARY_EXEC_PAUSE_LOOP_EXITING	0x00000400
73
-#define SECONDARY_EXEC_RDRAND_EXITING		0x00000800
74
-#define SECONDARY_EXEC_ENABLE_INVPCID		0x00001000
75
-#define SECONDARY_EXEC_ENABLE_VMFUNC            0x00002000
76
-#define SECONDARY_EXEC_SHADOW_VMCS              0x00004000
77
-#define SECONDARY_EXEC_ENCLS_EXITING		0x00008000
78
-#define SECONDARY_EXEC_RDSEED_EXITING		0x00010000
79
-#define SECONDARY_EXEC_ENABLE_PML               0x00020000
80
-#define SECONDARY_EXEC_XSAVES			0x00100000
81
-#define SECONDARY_EXEC_TSC_SCALING              0x02000000
52
+#define SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES VMCS_CONTROL_BIT(VIRT_APIC_ACCESSES)
53
+#define SECONDARY_EXEC_ENABLE_EPT               VMCS_CONTROL_BIT(EPT)
54
+#define SECONDARY_EXEC_DESC			VMCS_CONTROL_BIT(DESC_EXITING)
55
+#define SECONDARY_EXEC_ENABLE_RDTSCP		VMCS_CONTROL_BIT(RDTSCP)
56
+#define SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE   VMCS_CONTROL_BIT(VIRTUAL_X2APIC)
57
+#define SECONDARY_EXEC_ENABLE_VPID              VMCS_CONTROL_BIT(VPID)
58
+#define SECONDARY_EXEC_WBINVD_EXITING		VMCS_CONTROL_BIT(WBINVD_EXITING)
59
+#define SECONDARY_EXEC_UNRESTRICTED_GUEST	VMCS_CONTROL_BIT(UNRESTRICTED_GUEST)
60
+#define SECONDARY_EXEC_APIC_REGISTER_VIRT       VMCS_CONTROL_BIT(APIC_REGISTER_VIRT)
61
+#define SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY    VMCS_CONTROL_BIT(VIRT_INTR_DELIVERY)
62
+#define SECONDARY_EXEC_PAUSE_LOOP_EXITING	VMCS_CONTROL_BIT(PAUSE_LOOP_EXITING)
63
+#define SECONDARY_EXEC_RDRAND_EXITING		VMCS_CONTROL_BIT(RDRAND_EXITING)
64
+#define SECONDARY_EXEC_ENABLE_INVPCID		VMCS_CONTROL_BIT(INVPCID)
65
+#define SECONDARY_EXEC_ENABLE_VMFUNC            VMCS_CONTROL_BIT(VMFUNC)
66
+#define SECONDARY_EXEC_SHADOW_VMCS              VMCS_CONTROL_BIT(SHADOW_VMCS)
67
+#define SECONDARY_EXEC_ENCLS_EXITING		VMCS_CONTROL_BIT(ENCLS_EXITING)
68
+#define SECONDARY_EXEC_RDSEED_EXITING		VMCS_CONTROL_BIT(RDSEED_EXITING)
69
+#define SECONDARY_EXEC_ENABLE_PML               VMCS_CONTROL_BIT(PAGE_MOD_LOGGING)
70
+#define SECONDARY_EXEC_PT_CONCEAL_VMX		VMCS_CONTROL_BIT(PT_CONCEAL_VMX)
71
+#define SECONDARY_EXEC_XSAVES			VMCS_CONTROL_BIT(XSAVES)
72
+#define SECONDARY_EXEC_MODE_BASED_EPT_EXEC	VMCS_CONTROL_BIT(MODE_BASED_EPT_EXEC)
73
+#define SECONDARY_EXEC_PT_USE_GPA		VMCS_CONTROL_BIT(PT_USE_GPA)
74
+#define SECONDARY_EXEC_TSC_SCALING              VMCS_CONTROL_BIT(TSC_SCALING)
75
+#define SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE	VMCS_CONTROL_BIT(USR_WAIT_PAUSE)
8276 
83
-#define PIN_BASED_EXT_INTR_MASK                 0x00000001
84
-#define PIN_BASED_NMI_EXITING                   0x00000008
85
-#define PIN_BASED_VIRTUAL_NMIS                  0x00000020
86
-#define PIN_BASED_VMX_PREEMPTION_TIMER          0x00000040
87
-#define PIN_BASED_POSTED_INTR                   0x00000080
77
+#define PIN_BASED_EXT_INTR_MASK                 VMCS_CONTROL_BIT(INTR_EXITING)
78
+#define PIN_BASED_NMI_EXITING                   VMCS_CONTROL_BIT(NMI_EXITING)
79
+#define PIN_BASED_VIRTUAL_NMIS                  VMCS_CONTROL_BIT(VIRTUAL_NMIS)
80
+#define PIN_BASED_VMX_PREEMPTION_TIMER          VMCS_CONTROL_BIT(PREEMPTION_TIMER)
81
+#define PIN_BASED_POSTED_INTR                   VMCS_CONTROL_BIT(POSTED_INTR)
8882 
8983 #define PIN_BASED_ALWAYSON_WITHOUT_TRUE_MSR	0x00000016
9084 
....@@ -98,6 +92,8 @@
9892 #define VM_EXIT_LOAD_IA32_EFER                  0x00200000
9993 #define VM_EXIT_SAVE_VMX_PREEMPTION_TIMER       0x00400000
10094 #define VM_EXIT_CLEAR_BNDCFGS                   0x00800000
95
+#define VM_EXIT_PT_CONCEAL_PIP			0x01000000
96
+#define VM_EXIT_CLEAR_IA32_RTIT_CTL		0x02000000
10197 
10298 #define VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR	0x00036dff
10399 
....@@ -109,6 +105,8 @@
109105 #define VM_ENTRY_LOAD_IA32_PAT			0x00004000
110106 #define VM_ENTRY_LOAD_IA32_EFER                 0x00008000
111107 #define VM_ENTRY_LOAD_BNDCFGS                   0x00010000
108
+#define VM_ENTRY_PT_CONCEAL_PIP			0x00020000
109
+#define VM_ENTRY_LOAD_IA32_RTIT_CTL		0x00040000
112110 
113111 #define VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR	0x000011ff
114112 
....@@ -116,9 +114,12 @@
116114 #define VMX_MISC_SAVE_EFER_LMA			0x00000020
117115 #define VMX_MISC_ACTIVITY_HLT			0x00000040
118116 #define VMX_MISC_ZERO_LEN_INS			0x40000000
117
+#define VMX_MISC_MSR_LIST_MULTIPLIER		512
119118 
120119 /* VMFUNC functions */
121
-#define VMX_VMFUNC_EPTP_SWITCHING               0x00000001
120
+#define VMFUNC_CONTROL_BIT(x)	BIT((VMX_FEATURE_##x & 0x1f) - 28)
121
+
122
+#define VMX_VMFUNC_EPTP_SWITCHING               VMFUNC_CONTROL_BIT(EPTP_SWITCHING)
122123 #define VMFUNC_EPTP_ENTRIES  512
123124 
124125 static inline u32 vmx_basic_vmcs_revision_id(u64 vmx_basic)
....@@ -240,6 +241,8 @@
240241 	GUEST_PDPTR3_HIGH               = 0x00002811,
241242 	GUEST_BNDCFGS                   = 0x00002812,
242243 	GUEST_BNDCFGS_HIGH              = 0x00002813,
244
+	GUEST_IA32_RTIT_CTL		= 0x00002814,
245
+	GUEST_IA32_RTIT_CTL_HIGH	= 0x00002815,
243246 	HOST_IA32_PAT			= 0x00002c00,
244247 	HOST_IA32_PAT_HIGH		= 0x00002c01,
245248 	HOST_IA32_EFER			= 0x00002c02,
....@@ -497,24 +500,23 @@
497500 						 VMX_EPT_EXECUTABLE_MASK)
498501 #define VMX_EPT_MT_MASK				(7ull << VMX_EPT_MT_EPTE_SHIFT)
499502 
503
+static inline u8 vmx_eptp_page_walk_level(u64 eptp)
504
+{
505
+	u64 encoded_level = eptp & VMX_EPTP_PWL_MASK;
506
+
507
+	if (encoded_level == VMX_EPTP_PWL_5)
508
+		return 5;
509
+
510
+	/* @eptp must be pre-validated by the caller. */
511
+	WARN_ON_ONCE(encoded_level != VMX_EPTP_PWL_4);
512
+	return 4;
513
+}
514
+
500515 /* The mask to use to trigger an EPT Misconfiguration in order to track MMIO */
501516 #define VMX_EPT_MISCONFIG_WX_VALUE		(VMX_EPT_WRITABLE_MASK |       \
502517 						 VMX_EPT_EXECUTABLE_MASK)
503518 
504519 #define VMX_EPT_IDENTITY_PAGETABLE_ADDR		0xfffbc000ul
505
-
506
-
507
-#define ASM_VMX_VMCLEAR_RAX       ".byte 0x66, 0x0f, 0xc7, 0x30"
508
-#define ASM_VMX_VMLAUNCH          ".byte 0x0f, 0x01, 0xc2"
509
-#define ASM_VMX_VMRESUME          ".byte 0x0f, 0x01, 0xc3"
510
-#define ASM_VMX_VMPTRLD_RAX       ".byte 0x0f, 0xc7, 0x30"
511
-#define ASM_VMX_VMREAD_RDX_RAX    ".byte 0x0f, 0x78, 0xd0"
512
-#define ASM_VMX_VMWRITE_RAX_RDX   ".byte 0x0f, 0x79, 0xd0"
513
-#define ASM_VMX_VMWRITE_RSP_RDX   ".byte 0x0f, 0x79, 0xd4"
514
-#define ASM_VMX_VMXOFF            ".byte 0x0f, 0x01, 0xc4"
515
-#define ASM_VMX_VMXON_RAX         ".byte 0xf3, 0x0f, 0xc7, 0x30"
516
-#define ASM_VMX_INVEPT		  ".byte 0x66, 0x0f, 0x38, 0x80, 0x08"
517
-#define ASM_VMX_INVVPID		  ".byte 0x66, 0x0f, 0x38, 0x81, 0x08"
518520 
519521 struct vmx_msr_entry {
520522 	u32 index;
....@@ -525,10 +527,12 @@
525527 /*
526528  * Exit Qualifications for entry failure during or after loading guest state
527529  */
528
-#define ENTRY_FAIL_DEFAULT		0
529
-#define ENTRY_FAIL_PDPTE		2
530
-#define ENTRY_FAIL_NMI			3
531
-#define ENTRY_FAIL_VMCS_LINK_PTR	4
530
+enum vm_entry_failure_code {
531
+	ENTRY_FAIL_DEFAULT		= 0,
532
+	ENTRY_FAIL_PDPTE		= 2,
533
+	ENTRY_FAIL_NMI			= 3,
534
+	ENTRY_FAIL_VMCS_LINK_PTR	= 4,
535
+};
532536 
533537 /*
534538  * Exit Qualifications for EPT Violations
....@@ -579,6 +583,20 @@
579583 	VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID = 28,
580584 };
581585 
586
+/*
587
+ * VM-instruction errors that can be encountered on VM-Enter, used to trace
588
+ * nested VM-Enter failures reported by hardware.  Errors unique to VM-Enter
589
+ * from a SMI Transfer Monitor are not included as things have gone seriously
590
+ * sideways if we get one of those...
591
+ */
592
+#define VMX_VMENTER_INSTRUCTION_ERRORS \
593
+	{ VMXERR_VMLAUNCH_NONCLEAR_VMCS,		"VMLAUNCH_NONCLEAR_VMCS" }, \
594
+	{ VMXERR_VMRESUME_NONLAUNCHED_VMCS,		"VMRESUME_NONLAUNCHED_VMCS" }, \
595
+	{ VMXERR_VMRESUME_AFTER_VMXOFF,			"VMRESUME_AFTER_VMXOFF" }, \
596
+	{ VMXERR_ENTRY_INVALID_CONTROL_FIELD,		"VMENTRY_INVALID_CONTROL_FIELD" }, \
597
+	{ VMXERR_ENTRY_INVALID_HOST_STATE_FIELD,	"VMENTRY_INVALID_HOST_STATE_FIELD" }, \
598
+	{ VMXERR_ENTRY_EVENTS_BLOCKED_BY_MOV_SS,	"VMENTRY_EVENTS_BLOCKED_BY_MOV_SS" }
599
+
582600 enum vmx_l1d_flush_state {
583601 	VMENTER_L1D_FLUSH_AUTO,
584602 	VMENTER_L1D_FLUSH_NEVER,