| /* |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License, version 2, as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| * |
| * Copyright IBM Corp. 2008 |
| * |
| * Authors: Hollis Blanchard <hollisb@us.ibm.com> |
| */ |
| |
| #ifndef __POWERPC_KVM_PPC_H__ |
| #define __POWERPC_KVM_PPC_H__ |
| |
| /* This file exists just so we can dereference kvm_vcpu, avoiding nested header |
| * dependencies. */ |
| |
| #include <linux/mutex.h> |
| #include <linux/timer.h> |
| #include <linux/types.h> |
| #include <linux/kvm_types.h> |
| #include <linux/kvm_host.h> |
| #include <linux/bug.h> |
| #ifdef CONFIG_PPC_BOOK3S |
| #include <asm/kvm_book3s.h> |
| #else |
| #include <asm/kvm_booke.h> |
| #endif |
| #ifdef CONFIG_KVM_BOOK3S_64_HANDLER |
| #include <asm/paca.h> |
| #endif |
| |
| enum emulation_result { |
| EMULATE_DONE, /* no further processing */ |
| EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */ |
| EMULATE_DO_DCR, /* kvm_run filled with DCR request */ |
| EMULATE_FAIL, /* can't emulate this instruction */ |
| EMULATE_AGAIN, /* something went wrong. go again */ |
| EMULATE_EXIT_USER, /* emulation requires exit to user-space */ |
| }; |
| |
| extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); |
| extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); |
| extern void kvmppc_handler_highmem(void); |
| |
| extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu); |
| extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu, |
| unsigned int rt, unsigned int bytes, |
| int is_bigendian); |
| extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu, |
| unsigned int rt, unsigned int bytes, |
| int is_bigendian); |
| extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu, |
| u64 val, unsigned int bytes, int is_bigendian); |
| |
| extern int kvmppc_emulate_instruction(struct kvm_run *run, |
| struct kvm_vcpu *vcpu); |
| extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu); |
| extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu); |
| extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb); |
| extern void kvmppc_decrementer_func(unsigned long data); |
| extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu); |
| extern int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu); |
| extern void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu); |
| |
| /* Core-specific hooks */ |
| |
| extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr, |
| unsigned int gtlb_idx); |
| extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode); |
| extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid); |
| extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu); |
| extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu); |
| extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); |
| extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); |
| extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index, |
| gva_t eaddr); |
| extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu); |
| extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu); |
| |
| extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, |
| unsigned int id); |
| extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu); |
| extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu); |
| extern int kvmppc_core_check_processor_compat(void); |
| extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu, |
| struct kvm_translation *tr); |
| |
| extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu); |
| extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu); |
| |
| extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu); |
| extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu); |
| extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags); |
| extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu); |
| extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu); |
| extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu, |
| struct kvm_interrupt *irq); |
| extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu); |
| extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu); |
| |
| extern int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, |
| unsigned int op, int *advance); |
| extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, |
| ulong val); |
| extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, |
| ulong *val); |
| extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu); |
| |
| extern int kvmppc_booke_init(void); |
| extern void kvmppc_booke_exit(void); |
| |
| extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu); |
| extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu); |
| extern void kvmppc_map_magic(struct kvm_vcpu *vcpu); |
| |
| extern long kvmppc_alloc_hpt(struct kvm *kvm, u32 *htab_orderp); |
| extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, u32 *htab_orderp); |
| extern void kvmppc_free_hpt(struct kvm *kvm); |
| extern long kvmppc_prepare_vrma(struct kvm *kvm, |
| struct kvm_userspace_memory_region *mem); |
| extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu, |
| struct kvm_memory_slot *memslot, unsigned long porder); |
| extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu); |
| |
| extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm, |
| struct kvm_create_spapr_tce *args); |
| extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, |
| unsigned long ioba, unsigned long tce); |
| extern long kvm_vm_ioctl_allocate_rma(struct kvm *kvm, |
| struct kvm_allocate_rma *rma); |
| extern struct kvm_rma_info *kvm_alloc_rma(void); |
| extern void kvm_release_rma(struct kvm_rma_info *ri); |
| extern struct page *kvm_alloc_hpt(unsigned long nr_pages); |
| extern void kvm_release_hpt(struct page *page, unsigned long nr_pages); |
| extern int kvmppc_core_init_vm(struct kvm *kvm); |
| extern void kvmppc_core_destroy_vm(struct kvm *kvm); |
| extern void kvmppc_core_free_memslot(struct kvm_memory_slot *free, |
| struct kvm_memory_slot *dont); |
| extern int kvmppc_core_create_memslot(struct kvm_memory_slot *slot, |
| unsigned long npages); |
| extern int kvmppc_core_prepare_memory_region(struct kvm *kvm, |
| struct kvm_memory_slot *memslot, |
| struct kvm_userspace_memory_region *mem); |
| extern void kvmppc_core_commit_memory_region(struct kvm *kvm, |
| struct kvm_userspace_memory_region *mem, |
| const struct kvm_memory_slot *old); |
| extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm, |
| struct kvm_ppc_smmu_info *info); |
| extern void kvmppc_core_flush_memslot(struct kvm *kvm, |
| struct kvm_memory_slot *memslot); |
| |
| extern int kvmppc_bookehv_init(void); |
| extern void kvmppc_bookehv_exit(void); |
| |
| extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu); |
| |
| extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *); |
| |
| int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq); |
| |
| extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp); |
| extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu); |
| extern void kvmppc_rtas_tokens_free(struct kvm *kvm); |
| extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server, |
| u32 priority); |
| extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server, |
| u32 *priority); |
| extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq); |
| extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq); |
| |
| /* |
| * 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; |
| } |
| |
| union kvmppc_one_reg { |
| u32 wval; |
| u64 dval; |
| vector128 vval; |
| u64 vsxval[2]; |
| struct { |
| u64 addr; |
| u64 length; |
| } vpaval; |
| }; |
| |
| #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; \ |
| }) |
| |
| void 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); |
| |
| void 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_64_HV |
| extern void kvm_cma_reserve(void) __init; |
| static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) |
| { |
| paca[cpu].kvm_hstate.xics_phys = addr; |
| } |
| |
| static inline u32 kvmppc_get_xics_latch(void) |
| { |
| u32 xirr = get_paca()->kvm_hstate.saved_xirr; |
| |
| get_paca()->kvm_hstate.saved_xirr = 0; |
| |
| return xirr; |
| } |
| |
| static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi) |
| { |
| paca[cpu].kvm_hstate.host_ipi = host_ipi; |
| } |
| |
| extern void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu); |
| |
| #else |
| static inline void __init kvm_cma_reserve(void) |
| {} |
| |
| static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) |
| {} |
| |
| static inline u32 kvmppc_get_xics_latch(void) |
| { |
| return 0; |
| } |
| |
| static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi) |
| {} |
| |
| static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu) |
| { |
| kvm_vcpu_kick(vcpu); |
| } |
| #endif |
| |
| #ifdef CONFIG_KVM_XICS |
| static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu) |
| { |
| return vcpu->arch.irq_type == KVMPPC_IRQ_XICS; |
| } |
| extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu); |
| extern int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu, unsigned long server); |
| extern int kvm_vm_ioctl_xics_irq(struct kvm *kvm, struct kvm_irq_level *args); |
| 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); |
| #else |
| 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_create_icp(struct kvm_vcpu *vcpu, |
| unsigned long server) |
| { return -EINVAL; } |
| static inline int kvm_vm_ioctl_xics_irq(struct kvm *kvm, |
| struct kvm_irq_level *args) |
| { return -ENOTTY; } |
| static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd) |
| { 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(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); |
| } |
| } |
| |
| /* Please call after prepare_to_enter. This function puts the lazy ee state |
| back to normal mode, without actually enabling interrupts. */ |
| static inline void kvmppc_lazy_ee_enable(void) |
| { |
| #ifdef CONFIG_PPC64 |
| /* Only need to enable IRQs by hard enabling them after this */ |
| local_paca->irq_happened = 0; |
| local_paca->soft_enabled = 1; |
| #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 (!(vcpu->arch.shared->msr & msr_64bit)) |
| ea = (uint32_t)ea; |
| |
| return ea; |
| } |
| |
| extern void xics_wake_cpu(int cpu); |
| |
| #endif /* __POWERPC_KVM_PPC_H__ */ |