tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License, version 2, as
4 * published by the Free Software Foundation.
5 *
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 * GNU General Public License for more details.
10 *
11 * You should have received a copy of the GNU General Public License
12 * along with this program; if not, write to the Free Software
13 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
14 *
15 * Copyright SUSE Linux Products GmbH 2009
16 *
17 * Authors: Alexander Graf <agraf@suse.de>
18 */
19
20#ifndef __ASM_KVM_BOOK3S_ASM_H__
21#define __ASM_KVM_BOOK3S_ASM_H__
22
23#ifdef __ASSEMBLY__
24
25#ifdef CONFIG_KVM_BOOK3S_HANDLER
26
27#include <asm/kvm_asm.h>
28
29.macro DO_KVM intno
30 .if (\intno == BOOK3S_INTERRUPT_SYSTEM_RESET) || \
31 (\intno == BOOK3S_INTERRUPT_MACHINE_CHECK) || \
32 (\intno == BOOK3S_INTERRUPT_DATA_STORAGE) || \
33 (\intno == BOOK3S_INTERRUPT_INST_STORAGE) || \
34 (\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \
35 (\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \
36 (\intno == BOOK3S_INTERRUPT_EXTERNAL) || \
37 (\intno == BOOK3S_INTERRUPT_EXTERNAL_HV) || \
38 (\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \
39 (\intno == BOOK3S_INTERRUPT_PROGRAM) || \
40 (\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \
41 (\intno == BOOK3S_INTERRUPT_DECREMENTER) || \
42 (\intno == BOOK3S_INTERRUPT_SYSCALL) || \
43 (\intno == BOOK3S_INTERRUPT_TRACE) || \
44 (\intno == BOOK3S_INTERRUPT_PERFMON) || \
45 (\intno == BOOK3S_INTERRUPT_ALTIVEC) || \
46 (\intno == BOOK3S_INTERRUPT_VSX)
47
48 b kvmppc_trampoline_\intno
49kvmppc_resume_\intno:
50
51 .endif
52.endm
53
54#else
55
56.macro DO_KVM intno
57.endm
58
59#endif /* CONFIG_KVM_BOOK3S_HANDLER */
60
61#else /*__ASSEMBLY__ */
62
63/*
64 * This struct goes in the PACA on 64-bit processors. It is used
65 * to store host state that needs to be saved when we enter a guest
66 * and restored when we exit, but isn't specific to any particular
67 * guest or vcpu. It also has some scratch fields used by the guest
68 * exit code.
69 */
70struct kvmppc_host_state {
71 ulong host_r1;
72 ulong host_r2;
73 ulong host_msr;
74 ulong vmhandler;
75 ulong scratch0;
76 ulong scratch1;
77 u8 in_guest;
78 u8 restore_hid5;
79 u8 napping;
80
81#ifdef CONFIG_KVM_BOOK3S_64_HV
82 struct kvm_vcpu *kvm_vcpu;
83 struct kvmppc_vcore *kvm_vcore;
84 unsigned long xics_phys;
85 u64 dabr;
86 u64 host_mmcr[3];
87 u32 host_pmc[8];
88 u64 host_purr;
89 u64 host_spurr;
90 u64 host_dscr;
91 u64 dec_expires;
92#endif
93};
94
95struct kvmppc_book3s_shadow_vcpu {
96 ulong gpr[14];
97 u32 cr;
98 u32 xer;
99
100 u32 fault_dsisr;
101 u32 last_inst;
102 ulong ctr;
103 ulong lr;
104 ulong pc;
105 ulong shadow_srr1;
106 ulong fault_dar;
107
108#ifdef CONFIG_PPC_BOOK3S_32
109 u32 sr[16]; /* Guest SRs */
110
111 struct kvmppc_host_state hstate;
112#endif
113
114#ifdef CONFIG_PPC_BOOK3S_64
115 u8 slb_max; /* highest used guest slb entry */
116 struct {
117 u64 esid;
118 u64 vsid;
119 } slb[64]; /* guest SLB */
120#endif
121};
122
123#endif /*__ASSEMBLY__ */
124
125#endif /* __ASM_KVM_BOOK3S_ASM_H__ */