1004 lines
35 KiB
C
Executable file
1004 lines
35 KiB
C
Executable file
/*
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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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/*
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* KVMPPC_INST_SW_BREAKPOINT is debug Instruction
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* for supporting software breakpoint.
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*/
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#define KVMPPC_INST_SW_BREAKPOINT 0x00dddd00
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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_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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enum instruction_fetch_type {
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INST_GENERIC,
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INST_SC, /* system call */
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};
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enum xlate_instdata {
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XLATE_INST, /* translate instruction address */
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XLATE_DATA /* translate data address */
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};
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enum xlate_readwrite {
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XLATE_READ, /* check for read permissions */
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XLATE_WRITE /* check for write permissions */
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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_default_endian);
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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_default_endian);
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extern int kvmppc_handle_vsx_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_default_endian, int mmio_sign_extend);
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extern int kvmppc_handle_vmx_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
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unsigned int rt, unsigned int bytes, int is_default_endian);
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extern int kvmppc_handle_vmx_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
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unsigned int rs, unsigned int bytes, int is_default_endian);
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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,
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int is_default_endian);
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extern int kvmppc_handle_vsx_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
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int rs, unsigned int bytes,
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int is_default_endian);
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extern int kvmppc_load_last_inst(struct kvm_vcpu *vcpu,
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enum instruction_fetch_type type, u32 *inst);
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extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
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bool data);
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extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
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bool data);
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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_loadstore(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(struct kvm_vcpu *vcpu);
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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 int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr,
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enum xlate_instdata xlid, enum xlate_readwrite xlrw,
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struct kvmppc_pte *pte);
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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_fpunavail(struct kvm_vcpu *vcpu);
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extern void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu);
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extern void kvmppc_core_queue_vsx_unavail(struct kvm_vcpu *vcpu);
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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_queue_dtlb_miss(struct kvm_vcpu *vcpu, ulong dear_flags,
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ulong esr_flags);
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extern void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu,
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ulong dear_flags,
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ulong esr_flags);
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extern void kvmppc_core_queue_itlb_miss(struct kvm_vcpu *vcpu);
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extern void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu,
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ulong esr_flags);
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extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu);
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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 int kvmppc_allocate_hpt(struct kvm_hpt_info *info, u32 order);
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extern void kvmppc_set_hpt(struct kvm *kvm, struct kvm_hpt_info *info);
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extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, int order);
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extern void kvmppc_free_hpt(struct kvm_hpt_info *info);
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extern void kvmppc_rmap_reset(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_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
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struct iommu_group *grp);
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extern void kvm_spapr_tce_release_iommu_group(struct kvm *kvm,
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struct iommu_group *grp);
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extern int kvmppc_switch_mmu_to_hpt(struct kvm *kvm);
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extern int kvmppc_switch_mmu_to_radix(struct kvm *kvm);
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extern void kvmppc_setup_partition_table(struct kvm *kvm);
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extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
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struct kvm_create_spapr_tce_64 *args);
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extern struct kvmppc_spapr_tce_table *kvmppc_find_table(
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struct kvm *kvm, unsigned long liobn);
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#define kvmppc_ioba_validate(stt, ioba, npages) \
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(iommu_tce_check_ioba((stt)->page_shift, (stt)->offset, \
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(stt)->size, (ioba), (npages)) ? \
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H_PARAMETER : H_SUCCESS)
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extern long kvmppc_tce_validate(struct kvmppc_spapr_tce_table *tt,
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unsigned long tce);
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extern long kvmppc_gpa_to_ua(struct kvm *kvm, unsigned long gpa,
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unsigned long *ua, unsigned long **prmap);
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extern void kvmppc_tce_put(struct kvmppc_spapr_tce_table *tt,
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unsigned long idx, unsigned long tce);
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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 kvmppc_h_put_tce_indirect(struct kvm_vcpu *vcpu,
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unsigned long liobn, unsigned long ioba,
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unsigned long tce_list, unsigned long npages);
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extern long kvmppc_h_stuff_tce(struct kvm_vcpu *vcpu,
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unsigned long liobn, unsigned long ioba,
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unsigned long tce_value, unsigned long npages);
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extern long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
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unsigned long ioba);
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extern struct page *kvm_alloc_hpt_cma(unsigned long nr_pages);
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extern void kvm_free_hpt_cma(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 *kvm,
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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 *kvm,
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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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const struct kvm_userspace_memory_region *mem);
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extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
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const struct kvm_userspace_memory_region *mem,
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const struct kvm_memory_slot *old,
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const struct kvm_memory_slot *new);
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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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extern long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm,
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struct kvm_ppc_resize_hpt *rhpt);
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extern long kvm_vm_ioctl_resize_hpt_commit(struct kvm *kvm,
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struct kvm_ppc_resize_hpt *rhpt);
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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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void kvmppc_core_dequeue_debug(struct kvm_vcpu *vcpu);
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void kvmppc_core_queue_debug(struct kvm_vcpu *vcpu);
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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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u32 vsx32val[4];
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u16 vsx16val[8];
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u8 vsx8val[16];
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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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struct kvmppc_ops {
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struct module *owner;
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int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
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int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
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int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id,
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union kvmppc_one_reg *val);
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int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id,
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union kvmppc_one_reg *val);
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void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
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void (*vcpu_put)(struct kvm_vcpu *vcpu);
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void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr);
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int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu);
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struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned int id);
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void (*vcpu_free)(struct kvm_vcpu *vcpu);
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int (*check_requests)(struct kvm_vcpu *vcpu);
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int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log);
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void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot);
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int (*prepare_memory_region)(struct kvm *kvm,
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struct kvm_memory_slot *memslot,
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const struct kvm_userspace_memory_region *mem);
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void (*commit_memory_region)(struct kvm *kvm,
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const struct kvm_userspace_memory_region *mem,
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const struct kvm_memory_slot *old,
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const struct kvm_memory_slot *new);
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int (*unmap_hva_range)(struct kvm *kvm, unsigned long start,
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unsigned long end);
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int (*age_hva)(struct kvm *kvm, unsigned long start, unsigned long end);
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int (*test_age_hva)(struct kvm *kvm, unsigned long hva);
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void (*set_spte_hva)(struct kvm *kvm, unsigned long hva, pte_t pte);
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void (*mmu_destroy)(struct kvm_vcpu *vcpu);
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void (*free_memslot)(struct kvm_memory_slot *free,
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struct kvm_memory_slot *dont);
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int (*create_memslot)(struct kvm_memory_slot *slot,
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unsigned long npages);
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int (*init_vm)(struct kvm *kvm);
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void (*destroy_vm)(struct kvm *kvm);
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int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info);
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int (*emulate_op)(struct kvm_run *run, struct kvm_vcpu *vcpu,
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unsigned int inst, int *advance);
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int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
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int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
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void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu);
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long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl,
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unsigned long arg);
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int (*hcall_implemented)(unsigned long hcall);
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int (*irq_bypass_add_producer)(struct irq_bypass_consumer *,
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struct irq_bypass_producer *);
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void (*irq_bypass_del_producer)(struct irq_bypass_consumer *,
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struct irq_bypass_producer *);
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int (*configure_mmu)(struct kvm *kvm, struct kvm_ppc_mmuv3_cfg *cfg);
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int (*get_rmmu_info)(struct kvm *kvm, struct kvm_ppc_rmmu_info *info);
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int (*set_smt_mode)(struct kvm *kvm, unsigned long mode,
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unsigned long flags);
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void (*giveup_ext)(struct kvm_vcpu *vcpu, ulong msr);
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};
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extern struct kvmppc_ops *kvmppc_hv_ops;
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extern struct kvmppc_ops *kvmppc_pr_ops;
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static inline int kvmppc_get_last_inst(struct kvm_vcpu *vcpu,
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enum instruction_fetch_type type, u32 *inst)
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{
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int ret = EMULATE_DONE;
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u32 fetched_inst;
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/* Load the instruction manually if it failed to do so in the
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* exit path */
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if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
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ret = kvmppc_load_last_inst(vcpu, type, &vcpu->arch.last_inst);
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/* Write fetch_failed unswapped if the fetch failed */
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if (ret == EMULATE_DONE)
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fetched_inst = kvmppc_need_byteswap(vcpu) ?
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swab32(vcpu->arch.last_inst) :
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vcpu->arch.last_inst;
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else
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fetched_inst = vcpu->arch.last_inst;
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*inst = fetched_inst;
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return ret;
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}
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static inline bool is_kvmppc_hv_enabled(struct kvm *kvm)
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{
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return kvm->arch.kvm_ops == kvmppc_hv_ops;
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}
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extern int kvmppc_hwrng_present(void);
|
|
|
|
/*
|
|
* Cuts out inst bits with ordering according to spec.
|
|
* That means the leftmost bit is zero. All given bits are included.
|
|
*/
|
|
static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
|
|
{
|
|
u32 r;
|
|
u32 mask;
|
|
|
|
BUG_ON(msb > lsb);
|
|
|
|
mask = (1 << (lsb - msb + 1)) - 1;
|
|
r = (inst >> (63 - lsb)) & mask;
|
|
|
|
return r;
|
|
}
|
|
|
|
/*
|
|
* Replaces inst bits with ordering according to spec.
|
|
*/
|
|
static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
|
|
{
|
|
u32 r;
|
|
u32 mask;
|
|
|
|
BUG_ON(msb > lsb);
|
|
|
|
mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
|
|
r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
|
|
|
|
return r;
|
|
}
|
|
|
|
#define one_reg_size(id) \
|
|
(1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
|
|
|
|
#define get_reg_val(id, reg) ({ \
|
|
union kvmppc_one_reg __u; \
|
|
switch (one_reg_size(id)) { \
|
|
case 4: __u.wval = (reg); break; \
|
|
case 8: __u.dval = (reg); break; \
|
|
default: BUG(); \
|
|
} \
|
|
__u; \
|
|
})
|
|
|
|
|
|
#define set_reg_val(id, val) ({ \
|
|
u64 __v; \
|
|
switch (one_reg_size(id)) { \
|
|
case 4: __v = (val).wval; break; \
|
|
case 8: __v = (val).dval; break; \
|
|
default: BUG(); \
|
|
} \
|
|
__v; \
|
|
})
|
|
|
|
int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
|
|
int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
|
|
|
|
int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
|
|
int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
|
|
|
|
int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
|
|
int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
|
|
int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
|
|
int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
|
|
|
|
void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
|
|
|
|
struct openpic;
|
|
|
|
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
|
|
extern void kvm_cma_reserve(void) __init;
|
|
static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
|
|
{
|
|
paca_ptrs[cpu]->kvm_hstate.xics_phys = (void __iomem *)addr;
|
|
}
|
|
|
|
static inline void kvmppc_set_xive_tima(int cpu,
|
|
unsigned long phys_addr,
|
|
void __iomem *virt_addr)
|
|
{
|
|
paca_ptrs[cpu]->kvm_hstate.xive_tima_phys = (void __iomem *)phys_addr;
|
|
paca_ptrs[cpu]->kvm_hstate.xive_tima_virt = virt_addr;
|
|
}
|
|
|
|
static inline u32 kvmppc_get_xics_latch(void)
|
|
{
|
|
u32 xirr;
|
|
|
|
xirr = get_paca()->kvm_hstate.saved_xirr;
|
|
get_paca()->kvm_hstate.saved_xirr = 0;
|
|
return xirr;
|
|
}
|
|
|
|
/*
|
|
* To avoid the need to unnecessarily exit fully to the host kernel, an IPI to
|
|
* a CPU thread that's running/napping inside of a guest is by default regarded
|
|
* as a request to wake the CPU (if needed) and continue execution within the
|
|
* guest, potentially to process new state like externally-generated
|
|
* interrupts or IPIs sent from within the guest itself (e.g. H_PROD/H_IPI).
|
|
*
|
|
* To force an exit to the host kernel, kvmppc_set_host_ipi() must be called
|
|
* prior to issuing the IPI to set the corresponding 'host_ipi' flag in the
|
|
* target CPU's PACA. To avoid unnecessary exits to the host, this flag should
|
|
* be immediately cleared via kvmppc_clear_host_ipi() by the IPI handler on
|
|
* the receiving side prior to processing the IPI work.
|
|
*
|
|
* NOTE:
|
|
*
|
|
* We currently issue an smp_mb() at the beginning of kvmppc_set_host_ipi().
|
|
* This is to guard against sequences such as the following:
|
|
*
|
|
* CPU
|
|
* X: smp_muxed_ipi_set_message():
|
|
* X: smp_mb()
|
|
* X: message[RESCHEDULE] = 1
|
|
* X: doorbell_global_ipi(42):
|
|
* X: kvmppc_set_host_ipi(42)
|
|
* X: ppc_msgsnd_sync()/smp_mb()
|
|
* X: ppc_msgsnd() -> 42
|
|
* 42: doorbell_exception(): // from CPU X
|
|
* 42: ppc_msgsync()
|
|
* 105: smp_muxed_ipi_set_message():
|
|
* 105: smb_mb()
|
|
* // STORE DEFERRED DUE TO RE-ORDERING
|
|
* --105: message[CALL_FUNCTION] = 1
|
|
* | 105: doorbell_global_ipi(42):
|
|
* | 105: kvmppc_set_host_ipi(42)
|
|
* | 42: kvmppc_clear_host_ipi(42)
|
|
* | 42: smp_ipi_demux_relaxed()
|
|
* | 42: // returns to executing guest
|
|
* | // RE-ORDERED STORE COMPLETES
|
|
* ->105: message[CALL_FUNCTION] = 1
|
|
* 105: ppc_msgsnd_sync()/smp_mb()
|
|
* 105: ppc_msgsnd() -> 42
|
|
* 42: local_paca->kvm_hstate.host_ipi == 0 // IPI ignored
|
|
* 105: // hangs waiting on 42 to process messages/call_single_queue
|
|
*
|
|
* We also issue an smp_mb() at the end of kvmppc_clear_host_ipi(). This is
|
|
* to guard against sequences such as the following (as well as to create
|
|
* a read-side pairing with the barrier in kvmppc_set_host_ipi()):
|
|
*
|
|
* CPU
|
|
* X: smp_muxed_ipi_set_message():
|
|
* X: smp_mb()
|
|
* X: message[RESCHEDULE] = 1
|
|
* X: doorbell_global_ipi(42):
|
|
* X: kvmppc_set_host_ipi(42)
|
|
* X: ppc_msgsnd_sync()/smp_mb()
|
|
* X: ppc_msgsnd() -> 42
|
|
* 42: doorbell_exception(): // from CPU X
|
|
* 42: ppc_msgsync()
|
|
* // STORE DEFERRED DUE TO RE-ORDERING
|
|
* -- 42: kvmppc_clear_host_ipi(42)
|
|
* | 42: smp_ipi_demux_relaxed()
|
|
* | 105: smp_muxed_ipi_set_message():
|
|
* | 105: smb_mb()
|
|
* | 105: message[CALL_FUNCTION] = 1
|
|
* | 105: doorbell_global_ipi(42):
|
|
* | 105: kvmppc_set_host_ipi(42)
|
|
* | // RE-ORDERED STORE COMPLETES
|
|
* -> 42: kvmppc_clear_host_ipi(42)
|
|
* 42: // returns to executing guest
|
|
* 105: ppc_msgsnd_sync()/smp_mb()
|
|
* 105: ppc_msgsnd() -> 42
|
|
* 42: local_paca->kvm_hstate.host_ipi == 0 // IPI ignored
|
|
* 105: // hangs waiting on 42 to process messages/call_single_queue
|
|
*/
|
|
static inline void kvmppc_set_host_ipi(int cpu)
|
|
{
|
|
/*
|
|
* order stores of IPI messages vs. setting of host_ipi flag
|
|
*
|
|
* pairs with the barrier in kvmppc_clear_host_ipi()
|
|
*/
|
|
smp_mb();
|
|
paca_ptrs[cpu]->kvm_hstate.host_ipi = 1;
|
|
}
|
|
|
|
static inline void kvmppc_clear_host_ipi(int cpu)
|
|
{
|
|
paca_ptrs[cpu]->kvm_hstate.host_ipi = 0;
|
|
/*
|
|
* order clearing of host_ipi flag vs. processing of IPI messages
|
|
*
|
|
* pairs with the barrier in kvmppc_set_host_ipi()
|
|
*/
|
|
smp_mb();
|
|
}
|
|
|
|
static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
|
|
{
|
|
vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu);
|
|
}
|
|
|
|
extern void kvm_hv_vm_activated(void);
|
|
extern void kvm_hv_vm_deactivated(void);
|
|
extern bool kvm_hv_mode_active(void);
|
|
|
|
#else
|
|
static inline void __init kvm_cma_reserve(void)
|
|
{}
|
|
|
|
static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
|
|
{}
|
|
|
|
static inline void kvmppc_set_xive_tima(int cpu,
|
|
unsigned long phys_addr,
|
|
void __iomem *virt_addr)
|
|
{}
|
|
|
|
static inline u32 kvmppc_get_xics_latch(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void kvmppc_set_host_ipi(int cpu)
|
|
{}
|
|
|
|
static inline void kvmppc_clear_host_ipi(int cpu)
|
|
{}
|
|
|
|
static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
|
|
{
|
|
kvm_vcpu_kick(vcpu);
|
|
}
|
|
|
|
static inline bool kvm_hv_mode_active(void) { return false; }
|
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_KVM_XICS
|
|
static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
|
|
{
|
|
return vcpu->arch.irq_type == KVMPPC_IRQ_XICS;
|
|
}
|
|
|
|
static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap(
|
|
struct kvm *kvm)
|
|
{
|
|
if (kvm && kvm_irq_bypass)
|
|
return kvm->arch.pimap;
|
|
return NULL;
|
|
}
|
|
|
|
extern void kvmppc_alloc_host_rm_ops(void);
|
|
extern void kvmppc_free_host_rm_ops(void);
|
|
extern void kvmppc_free_pimap(struct kvm *kvm);
|
|
extern int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall);
|
|
extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu);
|
|
extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd);
|
|
extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu);
|
|
extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval);
|
|
extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev,
|
|
struct kvm_vcpu *vcpu, u32 cpu);
|
|
extern void kvmppc_xics_ipi_action(void);
|
|
extern void kvmppc_xics_set_mapped(struct kvm *kvm, unsigned long guest_irq,
|
|
unsigned long host_irq);
|
|
extern void kvmppc_xics_clr_mapped(struct kvm *kvm, unsigned long guest_irq,
|
|
unsigned long host_irq);
|
|
extern long kvmppc_deliver_irq_passthru(struct kvm_vcpu *vcpu, __be32 xirr,
|
|
struct kvmppc_irq_map *irq_map,
|
|
struct kvmppc_passthru_irqmap *pimap,
|
|
bool *again);
|
|
|
|
extern int kvmppc_xics_set_irq(struct kvm *kvm, int irq_source_id, u32 irq,
|
|
int level, bool line_status);
|
|
|
|
extern int h_ipi_redirect;
|
|
#else
|
|
static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap(
|
|
struct kvm *kvm)
|
|
{ return NULL; }
|
|
static inline void kvmppc_alloc_host_rm_ops(void) {};
|
|
static inline void kvmppc_free_host_rm_ops(void) {};
|
|
static inline void kvmppc_free_pimap(struct kvm *kvm) {};
|
|
static inline int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall)
|
|
{ return 0; }
|
|
static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
|
|
{ return 0; }
|
|
static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { }
|
|
static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd)
|
|
{ return 0; }
|
|
#endif
|
|
|
|
#ifdef CONFIG_KVM_XIVE
|
|
/*
|
|
* Below the first "xive" is the "eXternal Interrupt Virtualization Engine"
|
|
* ie. P9 new interrupt controller, while the second "xive" is the legacy
|
|
* "eXternal Interrupt Vector Entry" which is the configuration of an
|
|
* interrupt on the "xics" interrupt controller on P8 and earlier. Those
|
|
* two function consume or produce a legacy "XIVE" state from the
|
|
* new "XIVE" interrupt controller.
|
|
*/
|
|
extern int kvmppc_xive_set_xive(struct kvm *kvm, u32 irq, u32 server,
|
|
u32 priority);
|
|
extern int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server,
|
|
u32 *priority);
|
|
extern int kvmppc_xive_int_on(struct kvm *kvm, u32 irq);
|
|
extern int kvmppc_xive_int_off(struct kvm *kvm, u32 irq);
|
|
extern void kvmppc_xive_init_module(void);
|
|
extern void kvmppc_xive_exit_module(void);
|
|
|
|
extern int kvmppc_xive_connect_vcpu(struct kvm_device *dev,
|
|
struct kvm_vcpu *vcpu, u32 cpu);
|
|
extern void kvmppc_xive_cleanup_vcpu(struct kvm_vcpu *vcpu);
|
|
extern int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq,
|
|
struct irq_desc *host_desc);
|
|
extern int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq,
|
|
struct irq_desc *host_desc);
|
|
extern u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu);
|
|
extern int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval);
|
|
|
|
extern int kvmppc_xive_set_irq(struct kvm *kvm, int irq_source_id, u32 irq,
|
|
int level, bool line_status);
|
|
#else
|
|
static inline int kvmppc_xive_set_xive(struct kvm *kvm, u32 irq, u32 server,
|
|
u32 priority) { return -1; }
|
|
static inline int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server,
|
|
u32 *priority) { return -1; }
|
|
static inline int kvmppc_xive_int_on(struct kvm *kvm, u32 irq) { return -1; }
|
|
static inline int kvmppc_xive_int_off(struct kvm *kvm, u32 irq) { return -1; }
|
|
static inline void kvmppc_xive_init_module(void) { }
|
|
static inline void kvmppc_xive_exit_module(void) { }
|
|
|
|
static inline int kvmppc_xive_connect_vcpu(struct kvm_device *dev,
|
|
struct kvm_vcpu *vcpu, u32 cpu) { return -EBUSY; }
|
|
static inline void kvmppc_xive_cleanup_vcpu(struct kvm_vcpu *vcpu) { }
|
|
static inline int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq,
|
|
struct irq_desc *host_desc) { return -ENODEV; }
|
|
static inline int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq,
|
|
struct irq_desc *host_desc) { return -ENODEV; }
|
|
static inline u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu) { return 0; }
|
|
static inline int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval) { return -ENOENT; }
|
|
|
|
static inline int kvmppc_xive_set_irq(struct kvm *kvm, int irq_source_id, u32 irq,
|
|
int level, bool line_status) { return -ENODEV; }
|
|
#endif /* CONFIG_KVM_XIVE */
|
|
|
|
/*
|
|
* Prototypes for functions called only from assembler code.
|
|
* Having prototypes reduces sparse errors.
|
|
*/
|
|
long kvmppc_rm_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
|
|
unsigned long ioba, unsigned long tce);
|
|
long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu *vcpu,
|
|
unsigned long liobn, unsigned long ioba,
|
|
unsigned long tce_list, unsigned long npages);
|
|
long kvmppc_rm_h_stuff_tce(struct kvm_vcpu *vcpu,
|
|
unsigned long liobn, unsigned long ioba,
|
|
unsigned long tce_value, unsigned long npages);
|
|
long int kvmppc_rm_h_confer(struct kvm_vcpu *vcpu, int target,
|
|
unsigned int yield_count);
|
|
long kvmppc_h_random(struct kvm_vcpu *vcpu);
|
|
void kvmhv_commence_exit(int trap);
|
|
long kvmppc_realmode_machine_check(struct kvm_vcpu *vcpu);
|
|
void kvmppc_subcore_enter_guest(void);
|
|
void kvmppc_subcore_exit_guest(void);
|
|
long kvmppc_realmode_hmi_handler(void);
|
|
long kvmppc_h_enter(struct kvm_vcpu *vcpu, unsigned long flags,
|
|
long pte_index, unsigned long pteh, unsigned long ptel);
|
|
long kvmppc_h_remove(struct kvm_vcpu *vcpu, unsigned long flags,
|
|
unsigned long pte_index, unsigned long avpn);
|
|
long kvmppc_h_bulk_remove(struct kvm_vcpu *vcpu);
|
|
long kvmppc_h_protect(struct kvm_vcpu *vcpu, unsigned long flags,
|
|
unsigned long pte_index, unsigned long avpn,
|
|
unsigned long va);
|
|
long kvmppc_h_read(struct kvm_vcpu *vcpu, unsigned long flags,
|
|
unsigned long pte_index);
|
|
long kvmppc_h_clear_ref(struct kvm_vcpu *vcpu, unsigned long flags,
|
|
unsigned long pte_index);
|
|
long kvmppc_h_clear_mod(struct kvm_vcpu *vcpu, unsigned long flags,
|
|
unsigned long pte_index);
|
|
long kvmppc_hpte_hv_fault(struct kvm_vcpu *vcpu, unsigned long addr,
|
|
unsigned long slb_v, unsigned int status, bool data);
|
|
unsigned long kvmppc_rm_h_xirr(struct kvm_vcpu *vcpu);
|
|
unsigned long kvmppc_rm_h_xirr_x(struct kvm_vcpu *vcpu);
|
|
unsigned long kvmppc_rm_h_ipoll(struct kvm_vcpu *vcpu, unsigned long server);
|
|
int kvmppc_rm_h_ipi(struct kvm_vcpu *vcpu, unsigned long server,
|
|
unsigned long mfrr);
|
|
int kvmppc_rm_h_cppr(struct kvm_vcpu *vcpu, unsigned long cppr);
|
|
int kvmppc_rm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr);
|
|
|
|
/*
|
|
* Host-side operations we want to set up while running in real
|
|
* mode in the guest operating on the xics.
|
|
* Currently only VCPU wakeup is supported.
|
|
*/
|
|
|
|
union kvmppc_rm_state {
|
|
unsigned long raw;
|
|
struct {
|
|
u32 in_host;
|
|
u32 rm_action;
|
|
};
|
|
};
|
|
|
|
struct kvmppc_host_rm_core {
|
|
union kvmppc_rm_state rm_state;
|
|
void *rm_data;
|
|
char pad[112];
|
|
};
|
|
|
|
struct kvmppc_host_rm_ops {
|
|
struct kvmppc_host_rm_core *rm_core;
|
|
void (*vcpu_kick)(struct kvm_vcpu *vcpu);
|
|
};
|
|
|
|
extern struct kvmppc_host_rm_ops *kvmppc_host_rm_ops_hv;
|
|
|
|
static inline unsigned long kvmppc_get_epr(struct kvm_vcpu *vcpu)
|
|
{
|
|
#ifdef CONFIG_KVM_BOOKE_HV
|
|
return mfspr(SPRN_GEPR);
|
|
#elif defined(CONFIG_BOOKE)
|
|
return vcpu->arch.epr;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr)
|
|
{
|
|
#ifdef CONFIG_KVM_BOOKE_HV
|
|
mtspr(SPRN_GEPR, epr);
|
|
#elif defined(CONFIG_BOOKE)
|
|
vcpu->arch.epr = epr;
|
|
#endif
|
|
}
|
|
|
|
#ifdef CONFIG_KVM_MPIC
|
|
|
|
void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu);
|
|
int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu,
|
|
u32 cpu);
|
|
void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu);
|
|
|
|
#else
|
|
|
|
static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu)
|
|
{
|
|
}
|
|
|
|
static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev,
|
|
struct kvm_vcpu *vcpu, u32 cpu)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp,
|
|
struct kvm_vcpu *vcpu)
|
|
{
|
|
}
|
|
|
|
#endif /* CONFIG_KVM_MPIC */
|
|
|
|
int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
|
|
struct kvm_config_tlb *cfg);
|
|
int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
|
|
struct kvm_dirty_tlb *cfg);
|
|
|
|
long kvmppc_alloc_lpid(void);
|
|
void kvmppc_claim_lpid(long lpid);
|
|
void kvmppc_free_lpid(long lpid);
|
|
void kvmppc_init_lpid(unsigned long nr_lpids);
|
|
|
|
static inline void kvmppc_mmu_flush_icache(kvm_pfn_t pfn)
|
|
{
|
|
struct page *page;
|
|
/*
|
|
* We can only access pages that the kernel maps
|
|
* as memory. Bail out for unmapped ones.
|
|
*/
|
|
if (!pfn_valid(pfn))
|
|
return;
|
|
|
|
/* Clear i-cache for new pages */
|
|
page = pfn_to_page(pfn);
|
|
if (!test_bit(PG_arch_1, &page->flags)) {
|
|
flush_dcache_icache_page(page);
|
|
set_bit(PG_arch_1, &page->flags);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Shared struct helpers. The shared struct can be little or big endian,
|
|
* depending on the guest endianness. So expose helpers to all of them.
|
|
*/
|
|
static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu)
|
|
{
|
|
#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
|
|
/* Only Book3S_64 PR supports bi-endian for now */
|
|
return vcpu->arch.shared_big_endian;
|
|
#elif defined(CONFIG_PPC_BOOK3S_64) && defined(__LITTLE_ENDIAN__)
|
|
/* Book3s_64 HV on little endian is always little endian */
|
|
return false;
|
|
#else
|
|
return true;
|
|
#endif
|
|
}
|
|
|
|
#define SPRNG_WRAPPER_GET(reg, bookehv_spr) \
|
|
static inline ulong kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
|
|
{ \
|
|
return mfspr(bookehv_spr); \
|
|
} \
|
|
|
|
#define SPRNG_WRAPPER_SET(reg, bookehv_spr) \
|
|
static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, ulong val) \
|
|
{ \
|
|
mtspr(bookehv_spr, val); \
|
|
} \
|
|
|
|
#define SHARED_WRAPPER_GET(reg, size) \
|
|
static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
|
|
{ \
|
|
if (kvmppc_shared_big_endian(vcpu)) \
|
|
return be##size##_to_cpu(vcpu->arch.shared->reg); \
|
|
else \
|
|
return le##size##_to_cpu(vcpu->arch.shared->reg); \
|
|
} \
|
|
|
|
#define SHARED_WRAPPER_SET(reg, size) \
|
|
static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \
|
|
{ \
|
|
if (kvmppc_shared_big_endian(vcpu)) \
|
|
vcpu->arch.shared->reg = cpu_to_be##size(val); \
|
|
else \
|
|
vcpu->arch.shared->reg = cpu_to_le##size(val); \
|
|
} \
|
|
|
|
#define SHARED_WRAPPER(reg, size) \
|
|
SHARED_WRAPPER_GET(reg, size) \
|
|
SHARED_WRAPPER_SET(reg, size) \
|
|
|
|
#define SPRNG_WRAPPER(reg, bookehv_spr) \
|
|
SPRNG_WRAPPER_GET(reg, bookehv_spr) \
|
|
SPRNG_WRAPPER_SET(reg, bookehv_spr) \
|
|
|
|
#ifdef CONFIG_KVM_BOOKE_HV
|
|
|
|
#define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
|
|
SPRNG_WRAPPER(reg, bookehv_spr) \
|
|
|
|
#else
|
|
|
|
#define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
|
|
SHARED_WRAPPER(reg, size) \
|
|
|
|
#endif
|
|
|
|
SHARED_WRAPPER(critical, 64)
|
|
SHARED_SPRNG_WRAPPER(sprg0, 64, SPRN_GSPRG0)
|
|
SHARED_SPRNG_WRAPPER(sprg1, 64, SPRN_GSPRG1)
|
|
SHARED_SPRNG_WRAPPER(sprg2, 64, SPRN_GSPRG2)
|
|
SHARED_SPRNG_WRAPPER(sprg3, 64, SPRN_GSPRG3)
|
|
SHARED_SPRNG_WRAPPER(srr0, 64, SPRN_GSRR0)
|
|
SHARED_SPRNG_WRAPPER(srr1, 64, SPRN_GSRR1)
|
|
SHARED_SPRNG_WRAPPER(dar, 64, SPRN_GDEAR)
|
|
SHARED_SPRNG_WRAPPER(esr, 64, SPRN_GESR)
|
|
SHARED_WRAPPER_GET(msr, 64)
|
|
static inline void kvmppc_set_msr_fast(struct kvm_vcpu *vcpu, u64 val)
|
|
{
|
|
if (kvmppc_shared_big_endian(vcpu))
|
|
vcpu->arch.shared->msr = cpu_to_be64(val);
|
|
else
|
|
vcpu->arch.shared->msr = cpu_to_le64(val);
|
|
}
|
|
SHARED_WRAPPER(dsisr, 32)
|
|
SHARED_WRAPPER(int_pending, 32)
|
|
SHARED_WRAPPER(sprg4, 64)
|
|
SHARED_WRAPPER(sprg5, 64)
|
|
SHARED_WRAPPER(sprg6, 64)
|
|
SHARED_WRAPPER(sprg7, 64)
|
|
|
|
static inline u32 kvmppc_get_sr(struct kvm_vcpu *vcpu, int nr)
|
|
{
|
|
if (kvmppc_shared_big_endian(vcpu))
|
|
return be32_to_cpu(vcpu->arch.shared->sr[nr]);
|
|
else
|
|
return le32_to_cpu(vcpu->arch.shared->sr[nr]);
|
|
}
|
|
|
|
static inline void kvmppc_set_sr(struct kvm_vcpu *vcpu, int nr, u32 val)
|
|
{
|
|
if (kvmppc_shared_big_endian(vcpu))
|
|
vcpu->arch.shared->sr[nr] = cpu_to_be32(val);
|
|
else
|
|
vcpu->arch.shared->sr[nr] = cpu_to_le32(val);
|
|
}
|
|
|
|
/*
|
|
* Please call after prepare_to_enter. This function puts the lazy ee and irq
|
|
* disabled tracking state back to normal mode, without actually enabling
|
|
* interrupts.
|
|
*/
|
|
static inline void kvmppc_fix_ee_before_entry(void)
|
|
{
|
|
trace_hardirqs_on();
|
|
|
|
#ifdef CONFIG_PPC64
|
|
/*
|
|
* To avoid races, the caller must have gone directly from having
|
|
* interrupts fully-enabled to hard-disabled.
|
|
*/
|
|
WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS);
|
|
|
|
/* Only need to enable IRQs by hard enabling them after this */
|
|
local_paca->irq_happened = 0;
|
|
irq_soft_mask_set(IRQS_ENABLED);
|
|
#endif
|
|
}
|
|
|
|
static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb)
|
|
{
|
|
ulong ea;
|
|
ulong msr_64bit = 0;
|
|
|
|
ea = kvmppc_get_gpr(vcpu, rb);
|
|
if (ra)
|
|
ea += kvmppc_get_gpr(vcpu, ra);
|
|
|
|
#if defined(CONFIG_PPC_BOOK3E_64)
|
|
msr_64bit = MSR_CM;
|
|
#elif defined(CONFIG_PPC_BOOK3S_64)
|
|
msr_64bit = MSR_SF;
|
|
#endif
|
|
|
|
if (!(kvmppc_get_msr(vcpu) & msr_64bit))
|
|
ea = (uint32_t)ea;
|
|
|
|
return ea;
|
|
}
|
|
|
|
extern void xics_wake_cpu(int cpu);
|
|
|
|
#endif /* __POWERPC_KVM_PPC_H__ */
|