tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1#ifndef __LINUX_KVM_S390_H
2#define __LINUX_KVM_S390_H
3/*
4 * KVM s390 specific structures and definitions
5 *
6 * Copyright IBM Corp. 2008
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License (version 2 only)
10 * as published by the Free Software Foundation.
11 *
12 * Author(s): Carsten Otte <cotte@de.ibm.com>
13 * Christian Borntraeger <borntraeger@de.ibm.com>
14 */
15#include <linux/types.h>
16
17#define __KVM_S390
18
19/* Device control API: s390-specific devices */
20#define KVM_DEV_FLIC_GET_ALL_IRQS 1
21#define KVM_DEV_FLIC_ENQUEUE 2
22#define KVM_DEV_FLIC_CLEAR_IRQS 3
23#define KVM_DEV_FLIC_APF_ENABLE 4
24#define KVM_DEV_FLIC_APF_DISABLE_WAIT 5
25#define KVM_DEV_FLIC_ADAPTER_REGISTER 6
26#define KVM_DEV_FLIC_ADAPTER_MODIFY 7
27/*
28 * We can have up to 4*64k pending subchannels + 8 adapter interrupts,
29 * as well as up to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.
30 * There are also sclp and machine checks. This gives us
31 * sizeof(kvm_s390_irq)*(4*65536+8+64*64+1+1) = 72 * 266250 = 19170000
32 * Lets round up to 8192 pages.
33 */
34#define KVM_S390_MAX_FLOAT_IRQS 266250
35#define KVM_S390_FLIC_MAX_BUFFER 0x2000000
36
37struct kvm_s390_io_adapter {
38 __u32 id;
39 __u8 isc;
40 __u8 maskable;
41 __u8 swap;
42 __u8 pad;
43};
44
45#define KVM_S390_IO_ADAPTER_MASK 1
46#define KVM_S390_IO_ADAPTER_MAP 2
47#define KVM_S390_IO_ADAPTER_UNMAP 3
48
49struct kvm_s390_io_adapter_req {
50 __u32 id;
51 __u8 type;
52 __u8 mask;
53 __u16 pad0;
54 __u64 addr;
55};
56
57/* for KVM_GET_REGS and KVM_SET_REGS */
58struct kvm_regs {
59 /* general purpose regs for s390 */
60 __u64 gprs[16];
61};
62
63/* for KVM_GET_SREGS and KVM_SET_SREGS */
64struct kvm_sregs {
65 __u32 acrs[16];
66 __u64 crs[16];
67};
68
69/* for KVM_GET_FPU and KVM_SET_FPU */
70struct kvm_fpu {
71 __u32 fpc;
72 __u64 fprs[16];
73};
74
75struct kvm_debug_exit_arch {
76};
77
78/* for KVM_SET_GUEST_DEBUG */
79struct kvm_guest_debug_arch {
80};
81
82#define KVM_SYNC_PREFIX (1UL << 0)
83#define KVM_SYNC_GPRS (1UL << 1)
84#define KVM_SYNC_ACRS (1UL << 2)
85#define KVM_SYNC_CRS (1UL << 3)
86/* definition of registers in kvm_run */
87struct kvm_sync_regs {
88 __u64 prefix; /* prefix register */
89 __u64 gprs[16]; /* general purpose registers */
90 __u32 acrs[16]; /* access registers */
91 __u64 crs[16]; /* control registers */
92};
93
94#define KVM_REG_S390_TODPR (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)
95#define KVM_REG_S390_EPOCHDIFF (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2)
96#define KVM_REG_S390_CPU_TIMER (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3)
97#define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4)
98#define KVM_REG_S390_PFTOKEN (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5)
99#define KVM_REG_S390_PFCOMPARE (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6)
100#define KVM_REG_S390_PFSELECT (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7)
101#define KVM_REG_S390_PP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8)
102#define KVM_REG_S390_GBEA (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9)
103#endif