tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef SHADOW_FIELD_RO
2#define SHADOW_FIELD_RO(x)
3#endif
4#ifndef SHADOW_FIELD_RW
5#define SHADOW_FIELD_RW(x)
6#endif
7
8/*
9 * We do NOT shadow fields that are modified when L0
10 * traps and emulates any vmx instruction (e.g. VMPTRLD,
11 * VMXON...) executed by L1.
12 * For example, VM_INSTRUCTION_ERROR is read
13 * by L1 if a vmx instruction fails (part of the error path).
14 * Note the code assumes this logic. If for some reason
15 * we start shadowing these fields then we need to
16 * force a shadow sync when L0 emulates vmx instructions
17 * (e.g. force a sync if VM_INSTRUCTION_ERROR is modified
18 * by nested_vmx_failValid)
19 *
20 * When adding or removing fields here, note that shadowed
21 * fields must always be synced by prepare_vmcs02, not just
22 * prepare_vmcs02_full.
23 */
24
25/*
26 * Keeping the fields ordered by size is an attempt at improving
27 * branch prediction in vmcs_read_any and vmcs_write_any.
28 */
29
30/* 16-bits */
31SHADOW_FIELD_RW(GUEST_CS_SELECTOR)
32SHADOW_FIELD_RW(GUEST_INTR_STATUS)
33SHADOW_FIELD_RW(GUEST_PML_INDEX)
34SHADOW_FIELD_RW(HOST_FS_SELECTOR)
35SHADOW_FIELD_RW(HOST_GS_SELECTOR)
36
37/* 32-bits */
38SHADOW_FIELD_RO(VM_EXIT_REASON)
39SHADOW_FIELD_RO(VM_EXIT_INTR_INFO)
40SHADOW_FIELD_RO(VM_EXIT_INSTRUCTION_LEN)
41SHADOW_FIELD_RO(IDT_VECTORING_INFO_FIELD)
42SHADOW_FIELD_RO(IDT_VECTORING_ERROR_CODE)
43SHADOW_FIELD_RO(VM_EXIT_INTR_ERROR_CODE)
44SHADOW_FIELD_RW(CPU_BASED_VM_EXEC_CONTROL)
45SHADOW_FIELD_RW(EXCEPTION_BITMAP)
46SHADOW_FIELD_RW(VM_ENTRY_EXCEPTION_ERROR_CODE)
47SHADOW_FIELD_RW(VM_ENTRY_INTR_INFO_FIELD)
48SHADOW_FIELD_RW(VM_ENTRY_INSTRUCTION_LEN)
49SHADOW_FIELD_RW(TPR_THRESHOLD)
50SHADOW_FIELD_RW(GUEST_CS_LIMIT)
51SHADOW_FIELD_RW(GUEST_CS_AR_BYTES)
52SHADOW_FIELD_RW(GUEST_INTERRUPTIBILITY_INFO)
53SHADOW_FIELD_RW(VMX_PREEMPTION_TIMER_VALUE)
54
55/* Natural width */
56SHADOW_FIELD_RO(EXIT_QUALIFICATION)
57SHADOW_FIELD_RO(GUEST_LINEAR_ADDRESS)
58SHADOW_FIELD_RW(GUEST_RIP)
59SHADOW_FIELD_RW(GUEST_RSP)
60SHADOW_FIELD_RW(GUEST_CR0)
61SHADOW_FIELD_RW(GUEST_CR3)
62SHADOW_FIELD_RW(GUEST_CR4)
63SHADOW_FIELD_RW(GUEST_RFLAGS)
64SHADOW_FIELD_RW(GUEST_CS_BASE)
65SHADOW_FIELD_RW(GUEST_ES_BASE)
66SHADOW_FIELD_RW(CR0_GUEST_HOST_MASK)
67SHADOW_FIELD_RW(CR0_READ_SHADOW)
68SHADOW_FIELD_RW(CR4_READ_SHADOW)
69SHADOW_FIELD_RW(HOST_FS_BASE)
70SHADOW_FIELD_RW(HOST_GS_BASE)
71
72/* 64-bit */
73SHADOW_FIELD_RO(GUEST_PHYSICAL_ADDRESS)
74SHADOW_FIELD_RO(GUEST_PHYSICAL_ADDRESS_HIGH)
75
76#undef SHADOW_FIELD_RO
77#undef SHADOW_FIELD_RW