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.
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.
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.
15 * Copyright IBM Corp. 2008
17 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
20 #ifndef __POWERPC_KVM_PPC_H__
21 #define __POWERPC_KVM_PPC_H__
23 /* This file exists just so we can dereference kvm_vcpu, avoiding nested header
26 #include <linux/mutex.h>
27 #include <linux/timer.h>
28 #include <linux/types.h>
29 #include <linux/kvm_types.h>
30 #include <linux/kvm_host.h>
33 struct tlbe guest_tlb[PPC44x_TLB_SIZE];
34 struct tlbe shadow_tlb[PPC44x_TLB_SIZE];
37 enum emulation_result {
38 EMULATE_DONE, /* no further processing */
39 EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */
40 EMULATE_DO_DCR, /* kvm_run filled with DCR request */
41 EMULATE_FAIL, /* can't emulate this instruction */
44 extern const unsigned char exception_priority[];
45 extern const unsigned char priority_exception[];
47 extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
48 extern char kvmppc_handlers_start[];
49 extern unsigned long kvmppc_handler_len;
51 extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
52 extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
53 unsigned int rt, unsigned int bytes,
55 extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
56 u32 val, unsigned int bytes, int is_bigendian);
58 extern int kvmppc_emulate_instruction(struct kvm_run *run,
59 struct kvm_vcpu *vcpu);
60 extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
62 extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gfn_t gfn,
64 extern void kvmppc_mmu_invalidate(struct kvm_vcpu *vcpu, gva_t eaddr,
65 gva_t eend, u32 asid);
66 extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
68 /* XXX Book E specific */
69 extern void kvmppc_tlbe_set_modified(struct kvm_vcpu *vcpu, unsigned int i);
71 extern void kvmppc_check_and_deliver_interrupts(struct kvm_vcpu *vcpu);
73 static inline void kvmppc_queue_exception(struct kvm_vcpu *vcpu, int exception)
75 unsigned int priority = exception_priority[exception];
76 set_bit(priority, &vcpu->arch.pending_exceptions);
79 static inline void kvmppc_clear_exception(struct kvm_vcpu *vcpu, int exception)
81 unsigned int priority = exception_priority[exception];
82 clear_bit(priority, &vcpu->arch.pending_exceptions);
85 /* Helper function for "full" MSR writes. No need to call this if only EE is
87 static inline void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr)
89 if ((new_msr & MSR_PR) != (vcpu->arch.msr & MSR_PR))
90 kvmppc_mmu_priv_switch(vcpu, new_msr & MSR_PR);
92 vcpu->arch.msr = new_msr;
94 if (vcpu->arch.msr & MSR_WE)
98 #endif /* __POWERPC_KVM_PPC_H__ */