437 lines
14 KiB
C
437 lines
14 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, version 2, as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright IBM Corp. 2008
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*
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* Authors: Hollis Blanchard <hollisb@us.ibm.com>
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*/
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#ifndef __POWERPC_KVM_PPC_H__
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#define __POWERPC_KVM_PPC_H__
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/* This file exists just so we can dereference kvm_vcpu, avoiding nested header
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* dependencies. */
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#include <linux/mutex.h>
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#include <linux/timer.h>
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#include <linux/types.h>
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#include <linux/kvm_types.h>
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#include <linux/kvm_host.h>
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#include <linux/bug.h>
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#ifdef CONFIG_PPC_BOOK3S
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#include <asm/kvm_book3s.h>
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#else
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#include <asm/kvm_booke.h>
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#endif
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#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
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#include <asm/paca.h>
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#endif
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enum emulation_result {
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EMULATE_DONE, /* no further processing */
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EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */
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EMULATE_DO_DCR, /* kvm_run filled with DCR request */
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EMULATE_FAIL, /* can't emulate this instruction */
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EMULATE_AGAIN, /* something went wrong. go again */
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EMULATE_EXIT_USER, /* emulation requires exit to user-space */
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};
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extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
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extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
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extern void kvmppc_handler_highmem(void);
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extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
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extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
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unsigned int rt, unsigned int bytes,
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int is_bigendian);
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extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
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unsigned int rt, unsigned int bytes,
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int is_bigendian);
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extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
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u64 val, unsigned int bytes, int is_bigendian);
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extern int kvmppc_emulate_instruction(struct kvm_run *run,
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struct kvm_vcpu *vcpu);
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extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
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extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu);
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extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb);
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extern void kvmppc_decrementer_func(unsigned long data);
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extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu);
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extern int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu);
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extern void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu);
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/* Core-specific hooks */
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extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
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unsigned int gtlb_idx);
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extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
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extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
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extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu);
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extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu);
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extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
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extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
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extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
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gva_t eaddr);
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extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu);
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extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu);
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extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,
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unsigned int id);
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extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
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extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
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extern int kvmppc_core_check_processor_compat(void);
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extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
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struct kvm_translation *tr);
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extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
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extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu);
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extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu);
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extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);
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extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags);
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extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
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extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu);
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extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
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struct kvm_interrupt *irq);
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extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu);
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extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu);
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extern int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
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unsigned int op, int *advance);
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extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn,
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ulong val);
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extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn,
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ulong *val);
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extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu);
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extern int kvmppc_booke_init(void);
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extern void kvmppc_booke_exit(void);
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extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
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extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu);
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extern void kvmppc_map_magic(struct kvm_vcpu *vcpu);
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extern long kvmppc_alloc_hpt(struct kvm *kvm, u32 *htab_orderp);
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extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, u32 *htab_orderp);
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extern void kvmppc_free_hpt(struct kvm *kvm);
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extern long kvmppc_prepare_vrma(struct kvm *kvm,
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struct kvm_userspace_memory_region *mem);
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extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu,
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struct kvm_memory_slot *memslot, unsigned long porder);
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extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu);
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extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
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struct kvm_create_spapr_tce *args);
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extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
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unsigned long ioba, unsigned long tce);
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extern long kvm_vm_ioctl_allocate_rma(struct kvm *kvm,
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struct kvm_allocate_rma *rma);
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extern struct kvm_rma_info *kvm_alloc_rma(void);
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extern void kvm_release_rma(struct kvm_rma_info *ri);
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extern struct page *kvm_alloc_hpt(unsigned long nr_pages);
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extern void kvm_release_hpt(struct page *page, unsigned long nr_pages);
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extern int kvmppc_core_init_vm(struct kvm *kvm);
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extern void kvmppc_core_destroy_vm(struct kvm *kvm);
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extern void kvmppc_core_free_memslot(struct kvm_memory_slot *free,
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struct kvm_memory_slot *dont);
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extern int kvmppc_core_create_memslot(struct kvm_memory_slot *slot,
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unsigned long npages);
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extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
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struct kvm_memory_slot *memslot,
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struct kvm_userspace_memory_region *mem);
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extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
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struct kvm_userspace_memory_region *mem,
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const struct kvm_memory_slot *old);
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extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm,
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struct kvm_ppc_smmu_info *info);
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extern void kvmppc_core_flush_memslot(struct kvm *kvm,
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struct kvm_memory_slot *memslot);
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extern int kvmppc_bookehv_init(void);
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extern void kvmppc_bookehv_exit(void);
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extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu);
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extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *);
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int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq);
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extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp);
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extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu);
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extern void kvmppc_rtas_tokens_free(struct kvm *kvm);
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extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server,
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u32 priority);
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extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server,
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u32 *priority);
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extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq);
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extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq);
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/*
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* Cuts out inst bits with ordering according to spec.
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* That means the leftmost bit is zero. All given bits are included.
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*/
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static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
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{
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u32 r;
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u32 mask;
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BUG_ON(msb > lsb);
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mask = (1 << (lsb - msb + 1)) - 1;
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r = (inst >> (63 - lsb)) & mask;
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return r;
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}
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/*
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* Replaces inst bits with ordering according to spec.
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*/
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static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
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{
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u32 r;
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u32 mask;
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BUG_ON(msb > lsb);
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mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
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r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
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return r;
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}
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union kvmppc_one_reg {
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u32 wval;
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u64 dval;
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vector128 vval;
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u64 vsxval[2];
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struct {
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u64 addr;
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u64 length;
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} vpaval;
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};
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#define one_reg_size(id) \
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(1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
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#define get_reg_val(id, reg) ({ \
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union kvmppc_one_reg __u; \
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switch (one_reg_size(id)) { \
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case 4: __u.wval = (reg); break; \
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case 8: __u.dval = (reg); break; \
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default: BUG(); \
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} \
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__u; \
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})
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#define set_reg_val(id, val) ({ \
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u64 __v; \
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switch (one_reg_size(id)) { \
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case 4: __v = (val).wval; break; \
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case 8: __v = (val).dval; break; \
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default: BUG(); \
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} \
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__v; \
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})
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void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
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int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
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void kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
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int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
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int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
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int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
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int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
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int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
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void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
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struct openpic;
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#ifdef CONFIG_KVM_BOOK3S_64_HV
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extern void kvm_cma_reserve(void) __init;
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static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
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{
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paca[cpu].kvm_hstate.xics_phys = addr;
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}
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static inline u32 kvmppc_get_xics_latch(void)
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{
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u32 xirr = get_paca()->kvm_hstate.saved_xirr;
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get_paca()->kvm_hstate.saved_xirr = 0;
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return xirr;
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}
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static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
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{
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paca[cpu].kvm_hstate.host_ipi = host_ipi;
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}
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extern void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu);
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#else
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static inline void __init kvm_cma_reserve(void)
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{}
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static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
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{}
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static inline u32 kvmppc_get_xics_latch(void)
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{
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return 0;
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}
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static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
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{}
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static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
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{
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kvm_vcpu_kick(vcpu);
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}
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#endif
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#ifdef CONFIG_KVM_XICS
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static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
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{
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return vcpu->arch.irq_type == KVMPPC_IRQ_XICS;
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}
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extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu);
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extern int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu, unsigned long server);
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extern int kvm_vm_ioctl_xics_irq(struct kvm *kvm, struct kvm_irq_level *args);
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extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd);
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extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu);
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extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval);
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extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev,
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struct kvm_vcpu *vcpu, u32 cpu);
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#else
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static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
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{ return 0; }
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static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { }
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static inline int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu,
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unsigned long server)
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{ return -EINVAL; }
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static inline int kvm_vm_ioctl_xics_irq(struct kvm *kvm,
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struct kvm_irq_level *args)
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{ return -ENOTTY; }
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static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd)
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{ return 0; }
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#endif
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static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr)
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{
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#ifdef CONFIG_KVM_BOOKE_HV
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mtspr(SPRN_GEPR, epr);
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#elif defined(CONFIG_BOOKE)
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vcpu->arch.epr = epr;
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#endif
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}
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#ifdef CONFIG_KVM_MPIC
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void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu);
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int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu,
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u32 cpu);
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void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu);
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#else
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static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu)
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{
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}
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static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev,
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struct kvm_vcpu *vcpu, u32 cpu)
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{
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return -EINVAL;
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}
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static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp,
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struct kvm_vcpu *vcpu)
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{
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}
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#endif /* CONFIG_KVM_MPIC */
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int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
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struct kvm_config_tlb *cfg);
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int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
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struct kvm_dirty_tlb *cfg);
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long kvmppc_alloc_lpid(void);
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void kvmppc_claim_lpid(long lpid);
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void kvmppc_free_lpid(long lpid);
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void kvmppc_init_lpid(unsigned long nr_lpids);
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static inline void kvmppc_mmu_flush_icache(pfn_t pfn)
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{
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struct page *page;
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/*
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* We can only access pages that the kernel maps
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* as memory. Bail out for unmapped ones.
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*/
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if (!pfn_valid(pfn))
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return;
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/* Clear i-cache for new pages */
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page = pfn_to_page(pfn);
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if (!test_bit(PG_arch_1, &page->flags)) {
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flush_dcache_icache_page(page);
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set_bit(PG_arch_1, &page->flags);
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}
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}
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/*
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* Please call after prepare_to_enter. This function puts the lazy ee and irq
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* disabled tracking state back to normal mode, without actually enabling
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* interrupts.
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*/
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static inline void kvmppc_fix_ee_before_entry(void)
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{
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trace_hardirqs_on();
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#ifdef CONFIG_PPC64
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/* Only need to enable IRQs by hard enabling them after this */
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local_paca->irq_happened = 0;
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local_paca->soft_enabled = 1;
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#endif
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}
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static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb)
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{
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ulong ea;
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ulong msr_64bit = 0;
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ea = kvmppc_get_gpr(vcpu, rb);
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if (ra)
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ea += kvmppc_get_gpr(vcpu, ra);
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#if defined(CONFIG_PPC_BOOK3E_64)
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msr_64bit = MSR_CM;
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#elif defined(CONFIG_PPC_BOOK3S_64)
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msr_64bit = MSR_SF;
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#endif
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if (!(vcpu->arch.shared->msr & msr_64bit))
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ea = (uint32_t)ea;
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return ea;
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}
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extern void xics_wake_cpu(int cpu);
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#endif /* __POWERPC_KVM_PPC_H__ */
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