diff options
Diffstat (limited to 'arch/powerpc/kvm')
28 files changed, 238 insertions, 242 deletions
diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig index 711fca9bc6f0..12885eda324e 100644 --- a/arch/powerpc/kvm/Kconfig +++ b/arch/powerpc/kvm/Kconfig @@ -204,6 +204,4 @@ config KVM_XIVE default y depends on KVM_XICS && PPC_XIVE_NATIVE && KVM_BOOK3S_HV_POSSIBLE -source "drivers/vhost/Kconfig" - endif # VIRTUALIZATION diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index d07a8e12fa15..5690a1f9b976 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -799,21 +799,19 @@ int kvmppc_core_check_requests(struct kvm_vcpu *vcpu) return vcpu->kvm->arch.kvm_ops->check_requests(vcpu); } -int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log) +void kvm_arch_sync_dirty_log(struct kvm *kvm, struct kvm_memory_slot *memslot) { - return kvm->arch.kvm_ops->get_dirty_log(kvm, log); + } -void kvmppc_core_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free, - struct kvm_memory_slot *dont) +int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log) { - kvm->arch.kvm_ops->free_memslot(free, dont); + return kvm->arch.kvm_ops->get_dirty_log(kvm, log); } -int kvmppc_core_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot, - unsigned long npages) +void kvmppc_core_free_memslot(struct kvm *kvm, struct kvm_memory_slot *slot) { - return kvm->arch.kvm_ops->create_memslot(slot, npages); + kvm->arch.kvm_ops->free_memslot(slot); } void kvmppc_core_flush_memslot(struct kvm *kvm, struct kvm_memory_slot *memslot) @@ -823,9 +821,11 @@ void kvmppc_core_flush_memslot(struct kvm *kvm, struct kvm_memory_slot *memslot) int kvmppc_core_prepare_memory_region(struct kvm *kvm, struct kvm_memory_slot *memslot, - const struct kvm_userspace_memory_region *mem) + const struct kvm_userspace_memory_region *mem, + enum kvm_mr_change change) { - return kvm->arch.kvm_ops->prepare_memory_region(kvm, memslot, mem); + return kvm->arch.kvm_ops->prepare_memory_region(kvm, memslot, mem, + change); } void kvmppc_core_commit_memory_region(struct kvm *kvm, @@ -858,11 +858,6 @@ int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte) return 0; } -void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu) -{ - vcpu->kvm->arch.kvm_ops->mmu_destroy(vcpu); -} - int kvmppc_core_init_vm(struct kvm *kvm) { diff --git a/arch/powerpc/kvm/book3s.h b/arch/powerpc/kvm/book3s.h index 3a4613985949..eae259ee49af 100644 --- a/arch/powerpc/kvm/book3s.h +++ b/arch/powerpc/kvm/book3s.h @@ -16,6 +16,7 @@ extern int kvm_age_hva_hv(struct kvm *kvm, unsigned long start, extern int kvm_test_age_hva_hv(struct kvm *kvm, unsigned long hva); extern void kvm_set_spte_hva_hv(struct kvm *kvm, unsigned long hva, pte_t pte); +extern int kvmppc_mmu_init_pr(struct kvm_vcpu *vcpu); extern void kvmppc_mmu_destroy_pr(struct kvm_vcpu *vcpu); extern int kvmppc_core_emulate_op_pr(struct kvm_run *run, struct kvm_vcpu *vcpu, unsigned int inst, int *advance); diff --git a/arch/powerpc/kvm/book3s_32_mmu.c b/arch/powerpc/kvm/book3s_32_mmu.c index f21e73492ce3..3fbd570f9c1e 100644 --- a/arch/powerpc/kvm/book3s_32_mmu.c +++ b/arch/powerpc/kvm/book3s_32_mmu.c @@ -234,7 +234,7 @@ static int kvmppc_mmu_book3s_32_xlate_pte(struct kvm_vcpu *vcpu, gva_t eaddr, case 2: case 6: pte->may_write = true; - /* fall through */ + fallthrough; case 3: case 5: case 7: diff --git a/arch/powerpc/kvm/book3s_32_mmu_host.c b/arch/powerpc/kvm/book3s_32_mmu_host.c index d4cb3bcf41b6..e8e7b2c530d1 100644 --- a/arch/powerpc/kvm/book3s_32_mmu_host.c +++ b/arch/powerpc/kvm/book3s_32_mmu_host.c @@ -356,7 +356,7 @@ void kvmppc_mmu_destroy_pr(struct kvm_vcpu *vcpu) /* From mm/mmu_context_hash32.c */ #define CTX_TO_VSID(c, id) ((((c) * (897 * 16)) + (id * 0x111)) & 0xffffff) -int kvmppc_mmu_init(struct kvm_vcpu *vcpu) +int kvmppc_mmu_init_pr(struct kvm_vcpu *vcpu) { struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu); int err; diff --git a/arch/powerpc/kvm/book3s_64_mmu.c b/arch/powerpc/kvm/book3s_64_mmu.c index 599133256a95..26b8b27a3755 100644 --- a/arch/powerpc/kvm/book3s_64_mmu.c +++ b/arch/powerpc/kvm/book3s_64_mmu.c @@ -311,7 +311,7 @@ do_second: case 2: case 6: gpte->may_write = true; - /* fall through */ + fallthrough; case 3: case 5: case 7: diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c index 044dd49eeb9d..e452158a18d7 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_host.c +++ b/arch/powerpc/kvm/book3s_64_mmu_host.c @@ -384,7 +384,7 @@ void kvmppc_mmu_destroy_pr(struct kvm_vcpu *vcpu) __destroy_context(to_book3s(vcpu)->context_id[0]); } -int kvmppc_mmu_init(struct kvm_vcpu *vcpu) +int kvmppc_mmu_init_pr(struct kvm_vcpu *vcpu) { struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu); int err; diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index 6c372f5c61b6..2b35f9bcf892 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -485,18 +485,18 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, __be64 *hptep; unsigned long mmu_seq, psize, pte_size; unsigned long gpa_base, gfn_base; - unsigned long gpa, gfn, hva, pfn; + unsigned long gpa, gfn, hva, pfn, hpa; struct kvm_memory_slot *memslot; unsigned long *rmap; struct revmap_entry *rev; - struct page *page, *pages[1]; - long index, ret, npages; + struct page *page; + long index, ret; bool is_ci; - unsigned int writing, write_ok; - struct vm_area_struct *vma; + bool writing, write_ok; + unsigned int shift; unsigned long rcbits; long mmio_update; - struct mm_struct *mm; + pte_t pte, *ptep; if (kvm_is_radix(kvm)) return kvmppc_book3s_radix_page_fault(run, vcpu, ea, dsisr); @@ -570,59 +570,63 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, smp_rmb(); ret = -EFAULT; - is_ci = false; - pfn = 0; page = NULL; - mm = kvm->mm; - pte_size = PAGE_SIZE; writing = (dsisr & DSISR_ISSTORE) != 0; /* If writing != 0, then the HPTE must allow writing, if we get here */ write_ok = writing; hva = gfn_to_hva_memslot(memslot, gfn); - npages = get_user_pages_fast(hva, 1, writing ? FOLL_WRITE : 0, pages); - if (npages < 1) { - /* Check if it's an I/O mapping */ - down_read(&mm->mmap_sem); - vma = find_vma(mm, hva); - if (vma && vma->vm_start <= hva && hva + psize <= vma->vm_end && - (vma->vm_flags & VM_PFNMAP)) { - pfn = vma->vm_pgoff + - ((hva - vma->vm_start) >> PAGE_SHIFT); - pte_size = psize; - is_ci = pte_ci(__pte((pgprot_val(vma->vm_page_prot)))); - write_ok = vma->vm_flags & VM_WRITE; - } - up_read(&mm->mmap_sem); - if (!pfn) - goto out_put; + + /* + * Do a fast check first, since __gfn_to_pfn_memslot doesn't + * do it with !atomic && !async, which is how we call it. + * We always ask for write permission since the common case + * is that the page is writable. + */ + if (__get_user_pages_fast(hva, 1, 1, &page) == 1) { + write_ok = true; } else { - page = pages[0]; - pfn = page_to_pfn(page); - if (PageHuge(page)) { - page = compound_head(page); - pte_size <<= compound_order(page); - } - /* if the guest wants write access, see if that is OK */ - if (!writing && hpte_is_writable(r)) { - pte_t *ptep, pte; - unsigned long flags; - /* - * We need to protect against page table destruction - * hugepage split and collapse. - */ - local_irq_save(flags); - ptep = find_current_mm_pte(mm->pgd, hva, NULL, NULL); - if (ptep) { - pte = kvmppc_read_update_linux_pte(ptep, 1); - if (__pte_write(pte)) - write_ok = 1; - } - local_irq_restore(flags); + /* Call KVM generic code to do the slow-path check */ + pfn = __gfn_to_pfn_memslot(memslot, gfn, false, NULL, + writing, &write_ok); + if (is_error_noslot_pfn(pfn)) + return -EFAULT; + page = NULL; + if (pfn_valid(pfn)) { + page = pfn_to_page(pfn); + if (PageReserved(page)) + page = NULL; } } + /* + * Read the PTE from the process' radix tree and use that + * so we get the shift and attribute bits. + */ + local_irq_disable(); + ptep = __find_linux_pte(vcpu->arch.pgdir, hva, NULL, &shift); + pte = __pte(0); + if (ptep) + pte = *ptep; + local_irq_enable(); + /* + * If the PTE disappeared temporarily due to a THP + * collapse, just return and let the guest try again. + */ + if (!pte_present(pte)) { + if (page) + put_page(page); + return RESUME_GUEST; + } + hpa = pte_pfn(pte) << PAGE_SHIFT; + pte_size = PAGE_SIZE; + if (shift) + pte_size = 1ul << shift; + is_ci = pte_ci(pte); + if (psize > pte_size) goto out_put; + if (pte_size > psize) + hpa |= hva & (pte_size - psize); /* Check WIMG vs. the actual page we're accessing */ if (!hpte_cache_flags_ok(r, is_ci)) { @@ -636,14 +640,13 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, } /* - * Set the HPTE to point to pfn. - * Since the pfn is at PAGE_SIZE granularity, make sure we + * Set the HPTE to point to hpa. + * Since the hpa is at PAGE_SIZE granularity, make sure we * don't mask out lower-order bits if psize < PAGE_SIZE. */ if (psize < PAGE_SIZE) psize = PAGE_SIZE; - r = (r & HPTE_R_KEY_HI) | (r & ~(HPTE_R_PP0 - psize)) | - ((pfn << PAGE_SHIFT) & ~(psize - 1)); + r = (r & HPTE_R_KEY_HI) | (r & ~(HPTE_R_PP0 - psize)) | hpa; if (hpte_is_writable(r) && !write_ok) r = hpte_make_readonly(r); ret = RESUME_GUEST; @@ -708,20 +711,13 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, asm volatile("ptesync" : : : "memory"); preempt_enable(); if (page && hpte_is_writable(r)) - SetPageDirty(page); + set_page_dirty_lock(page); out_put: trace_kvm_page_fault_exit(vcpu, hpte, ret); - if (page) { - /* - * We drop pages[0] here, not page because page might - * have been set to the head page of a compound, but - * we have to drop the reference on the correct tail - * page to match the get inside gup() - */ - put_page(pages[0]); - } + if (page) + put_page(page); return ret; out_unlock: @@ -2138,9 +2134,8 @@ static const struct file_operations debugfs_htab_fops = { void kvmppc_mmu_debugfs_init(struct kvm *kvm) { - kvm->arch.htab_dentry = debugfs_create_file("htab", 0400, - kvm->arch.debugfs_dir, kvm, - &debugfs_htab_fops); + debugfs_create_file("htab", 0400, kvm->arch.debugfs_dir, kvm, + &debugfs_htab_fops); } void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu) diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c index 803940d79b73..aa12cd4078b3 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_radix.c +++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c @@ -425,7 +425,7 @@ static void kvmppc_unmap_free_pte(struct kvm *kvm, pte_t *pte, bool full, unsigned int lpid) { if (full) { - memset(pte, 0, sizeof(long) << PTE_INDEX_SIZE); + memset(pte, 0, sizeof(long) << RADIX_PTE_INDEX_SIZE); } else { pte_t *p = pte; unsigned long it; @@ -815,18 +815,19 @@ int kvmppc_book3s_instantiate_page(struct kvm_vcpu *vcpu, */ local_irq_disable(); ptep = __find_linux_pte(vcpu->arch.pgdir, hva, NULL, &shift); + pte = __pte(0); + if (ptep) + pte = *ptep; + local_irq_enable(); /* * If the PTE disappeared temporarily due to a THP * collapse, just return and let the guest try again. */ - if (!ptep) { - local_irq_enable(); + if (!pte_present(pte)) { if (page) put_page(page); return RESUME_GUEST; } - pte = *ptep; - local_irq_enable(); /* If we're logging dirty pages, always map single pages */ large_enable = !(memslot->flags & KVM_MEM_LOG_DIRTY_PAGES); @@ -1376,9 +1377,8 @@ static const struct file_operations debugfs_radix_fops = { void kvmhv_radix_debugfs_init(struct kvm *kvm) { - kvm->arch.radix_dentry = debugfs_create_file("radix", 0400, - kvm->arch.debugfs_dir, kvm, - &debugfs_radix_fops); + debugfs_create_file("radix", 0400, kvm->arch.debugfs_dir, kvm, + &debugfs_radix_fops); } int kvmppc_radix_init(void) diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c index ee6c103bb7d5..50555ad1db93 100644 --- a/arch/powerpc/kvm/book3s_64_vio.c +++ b/arch/powerpc/kvm/book3s_64_vio.c @@ -27,7 +27,6 @@ #include <asm/hvcall.h> #include <asm/synch.h> #include <asm/ppc-opcode.h> -#include <asm/kvm_host.h> #include <asm/udbg.h> #include <asm/iommu.h> #include <asm/tce.h> diff --git a/arch/powerpc/kvm/book3s_64_vio_hv.c b/arch/powerpc/kvm/book3s_64_vio_hv.c index ab6eeb8e753e..6fcaf1fa8e02 100644 --- a/arch/powerpc/kvm/book3s_64_vio_hv.c +++ b/arch/powerpc/kvm/book3s_64_vio_hv.c @@ -24,7 +24,6 @@ #include <asm/hvcall.h> #include <asm/synch.h> #include <asm/ppc-opcode.h> -#include <asm/kvm_host.h> #include <asm/udbg.h> #include <asm/iommu.h> #include <asm/tce.h> diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 2cefd071b848..93493f0cbfe8 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -72,7 +72,6 @@ #include <asm/xics.h> #include <asm/xive.h> #include <asm/hw_breakpoint.h> -#include <asm/kvm_host.h> #include <asm/kvm_book3s_uvmem.h> #include <asm/ultravisor.h> @@ -1074,25 +1073,35 @@ int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu) kvmppc_get_gpr(vcpu, 6)); break; case H_SVM_PAGE_IN: - ret = kvmppc_h_svm_page_in(vcpu->kvm, - kvmppc_get_gpr(vcpu, 4), - kvmppc_get_gpr(vcpu, 5), - kvmppc_get_gpr(vcpu, 6)); + ret = H_UNSUPPORTED; + if (kvmppc_get_srr1(vcpu) & MSR_S) + ret = kvmppc_h_svm_page_in(vcpu->kvm, + kvmppc_get_gpr(vcpu, 4), + kvmppc_get_gpr(vcpu, 5), + kvmppc_get_gpr(vcpu, 6)); break; case H_SVM_PAGE_OUT: - ret = kvmppc_h_svm_page_out(vcpu->kvm, - kvmppc_get_gpr(vcpu, 4), - kvmppc_get_gpr(vcpu, 5), - kvmppc_get_gpr(vcpu, 6)); + ret = H_UNSUPPORTED; + if (kvmppc_get_srr1(vcpu) & MSR_S) + ret = kvmppc_h_svm_page_out(vcpu->kvm, + kvmppc_get_gpr(vcpu, 4), + kvmppc_get_gpr(vcpu, 5), + kvmppc_get_gpr(vcpu, 6)); break; case H_SVM_INIT_START: - ret = kvmppc_h_svm_init_start(vcpu->kvm); + ret = H_UNSUPPORTED; + if (kvmppc_get_srr1(vcpu) & MSR_S) + ret = kvmppc_h_svm_init_start(vcpu->kvm); break; case H_SVM_INIT_DONE: - ret = kvmppc_h_svm_init_done(vcpu->kvm); + ret = H_UNSUPPORTED; + if (kvmppc_get_srr1(vcpu) & MSR_S) + ret = kvmppc_h_svm_init_done(vcpu->kvm); break; case H_SVM_INIT_ABORT: - ret = kvmppc_h_svm_init_abort(vcpu->kvm); + ret = H_UNSUPPORTED; + if (kvmppc_get_srr1(vcpu) & MSR_S) + ret = kvmppc_h_svm_init_abort(vcpu->kvm); break; default: @@ -2258,14 +2267,9 @@ static void debugfs_vcpu_init(struct kvm_vcpu *vcpu, unsigned int id) struct kvm *kvm = vcpu->kvm; snprintf(buf, sizeof(buf), "vcpu%u", id); - if (IS_ERR_OR_NULL(kvm->arch.debugfs_dir)) - return; vcpu->arch.debugfs_dir = debugfs_create_dir(buf, kvm->arch.debugfs_dir); - if (IS_ERR_OR_NULL(vcpu->arch.debugfs_dir)) - return; - vcpu->arch.debugfs_timings = - debugfs_create_file("timings", 0444, vcpu->arch.debugfs_dir, - vcpu, &debugfs_timings_ops); + debugfs_create_file("timings", 0444, vcpu->arch.debugfs_dir, vcpu, + &debugfs_timings_ops); } #else /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */ @@ -3616,6 +3620,7 @@ int kvmhv_p9_guest_entry(struct kvm_vcpu *vcpu, u64 time_limit, if (trap == BOOK3S_INTERRUPT_SYSCALL && !vcpu->arch.nested && kvmppc_get_gpr(vcpu, 3) == H_CEDE) { kvmppc_nested_cede(vcpu); + kvmppc_set_gpr(vcpu, 3, 0); trap = 0; } } else { @@ -4400,7 +4405,7 @@ static int kvm_vm_ioctl_get_dirty_log_hv(struct kvm *kvm, slots = kvm_memslots(kvm); memslot = id_to_memslot(slots, log->slot); r = -ENOENT; - if (!memslot->dirty_bitmap) + if (!memslot || !memslot->dirty_bitmap) goto out; /* @@ -4447,29 +4452,26 @@ out: return r; } -static void kvmppc_core_free_memslot_hv(struct kvm_memory_slot *free, - struct kvm_memory_slot *dont) +static void kvmppc_core_free_memslot_hv(struct kvm_memory_slot *slot) { - if (!dont || free->arch.rmap != dont->arch.rmap) { - vfree(free->arch.rmap); - free->arch.rmap = NULL; - } + vfree(slot->arch.rmap); + slot->arch.rmap = NULL; } -static int kvmppc_core_create_memslot_hv(struct kvm_memory_slot *slot, - unsigned long npages) +static int kvmppc_core_prepare_memory_region_hv(struct kvm *kvm, + struct kvm_memory_slot *slot, + const struct kvm_userspace_memory_region *mem, + enum kvm_mr_change change) { - slot->arch.rmap = vzalloc(array_size(npages, sizeof(*slot->arch.rmap))); - if (!slot->arch.rmap) - return -ENOMEM; + unsigned long npages = mem->memory_size >> PAGE_SHIFT; - return 0; -} + if (change == KVM_MR_CREATE) { + slot->arch.rmap = vzalloc(array_size(npages, + sizeof(*slot->arch.rmap))); + if (!slot->arch.rmap) + return -ENOMEM; + } -static int kvmppc_core_prepare_memory_region_hv(struct kvm *kvm, - struct kvm_memory_slot *memslot, - const struct kvm_userspace_memory_region *mem) -{ return 0; } @@ -4558,11 +4560,6 @@ void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr, unsigned long mask) } } -static void kvmppc_mmu_destroy_hv(struct kvm_vcpu *vcpu) -{ - return; -} - void kvmppc_setup_partition_table(struct kvm *kvm) { unsigned long dw0, dw1; @@ -5427,6 +5424,21 @@ static void unpin_vpa_reset(struct kvm *kvm, struct kvmppc_vpa *vpa) } /* + * Enable a guest to become a secure VM, or test whether + * that could be enabled. + * Called when the KVM_CAP_PPC_SECURE_GUEST capability is + * tested (kvm == NULL) or enabled (kvm != NULL). + */ +static int kvmhv_enable_svm(struct kvm *kvm) +{ + if (!kvmppc_uvmem_available()) + return -EINVAL; + if (kvm) + kvm->arch.svm_enabled = 1; + return 0; +} + +/* * IOCTL handler to turn off secure mode of guest * * - Release all device pages @@ -5526,9 +5538,7 @@ static struct kvmppc_ops kvm_ops_hv = { .age_hva = kvm_age_hva_hv, .test_age_hva = kvm_test_age_hva_hv, .set_spte_hva = kvm_set_spte_hva_hv, - .mmu_destroy = kvmppc_mmu_destroy_hv, .free_memslot = kvmppc_core_free_memslot_hv, - .create_memslot = kvmppc_core_create_memslot_hv, .init_vm = kvmppc_core_init_vm_hv, .destroy_vm = kvmppc_core_destroy_vm_hv, .get_smmu_info = kvm_vm_ioctl_get_smmu_info_hv, @@ -5548,6 +5558,7 @@ static struct kvmppc_ops kvm_ops_hv = { .enable_nested = kvmhv_enable_nested, .load_from_eaddr = kvmhv_load_from_eaddr, .store_to_eaddr = kvmhv_store_to_eaddr, + .enable_svm = kvmhv_enable_svm, .svm_off = kvmhv_svm_off, }; diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index dbc2fecc37f0..780a499c7114 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -1266,7 +1266,6 @@ kvmppc_interrupt_hv: * R12 = (guest CR << 32) | interrupt vector * R13 = PACA * guest R12 saved in shadow VCPU SCRATCH0 - * guest CTR saved in shadow VCPU SCRATCH1 if RELOCATABLE * guest R13 saved in SPRN_SCRATCH0 */ std r9, HSTATE_SCRATCH2(r13) @@ -1367,12 +1366,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR) 11: stw r3,VCPU_HEIR(r9) /* these are volatile across C function calls */ -#ifdef CONFIG_RELOCATABLE - ld r3, HSTATE_SCRATCH1(r13) - mtctr r3 -#else mfctr r3 -#endif mfxer r4 std r3, VCPU_CTR(r9) std r4, VCPU_XER(r9) @@ -3258,7 +3252,6 @@ END_FTR_SECTION_IFCLR(CPU_FTR_P9_TM_HV_ASSIST) * r12 is (CR << 32) | vector * r13 points to our PACA * r12 is saved in HSTATE_SCRATCH0(r13) - * ctr is saved in HSTATE_SCRATCH1(r13) if RELOCATABLE * r9 is saved in HSTATE_SCRATCH2(r13) * r13 is saved in HSPRG1 * cfar is saved in HSTATE_CFAR(r13) @@ -3307,11 +3300,7 @@ kvmppc_bad_host_intr: ld r5, HSTATE_CFAR(r13) std r5, ORIG_GPR3(r1) mflr r3 -#ifdef CONFIG_RELOCATABLE - ld r4, HSTATE_SCRATCH1(r13) -#else mfctr r4 -#endif mfxer r5 lbz r6, PACAIRQSOFTMASK(r13) std r3, _LINK(r1) diff --git a/arch/powerpc/kvm/book3s_hv_tm.c b/arch/powerpc/kvm/book3s_hv_tm.c index 0db937497169..cc90b8b82329 100644 --- a/arch/powerpc/kvm/book3s_hv_tm.c +++ b/arch/powerpc/kvm/book3s_hv_tm.c @@ -3,6 +3,8 @@ * Copyright 2017 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com> */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kvm_host.h> #include <asm/kvm_ppc.h> @@ -44,7 +46,18 @@ int kvmhv_p9_tm_emulation(struct kvm_vcpu *vcpu) u64 newmsr, bescr; int ra, rs; - switch (instr & 0xfc0007ff) { + /* + * rfid, rfebb, and mtmsrd encode bit 31 = 0 since it's a reserved bit + * in these instructions, so masking bit 31 out doesn't change these + * instructions. For treclaim., tsr., and trechkpt. instructions if bit + * 31 = 0 then they are per ISA invalid forms, however P9 UM, in section + * 4.6.10 Book II Invalid Forms, informs specifically that ignoring bit + * 31 is an acceptable way to handle these invalid forms that have + * bit 31 = 0. Moreover, for emulation purposes both forms (w/ and wo/ + * bit 31 set) can generate a softpatch interrupt. Hence both forms + * are handled below for these instructions so they behave the same way. + */ + switch (instr & PO_XOP_OPCODE_MASK) { case PPC_INST_RFID: /* XXX do we need to check for PR=0 here? */ newmsr = vcpu->arch.shregs.srr1; @@ -105,7 +118,8 @@ int kvmhv_p9_tm_emulation(struct kvm_vcpu *vcpu) vcpu->arch.shregs.msr = newmsr; return RESUME_GUEST; - case PPC_INST_TSR: + /* ignore bit 31, see comment above */ + case (PPC_INST_TSR & PO_XOP_OPCODE_MASK): /* check for PR=1 and arch 2.06 bit set in PCR */ if ((msr & MSR_PR) && (vcpu->arch.vcore->pcr & PCR_ARCH_206)) { /* generate an illegal instruction interrupt */ @@ -140,7 +154,8 @@ int kvmhv_p9_tm_emulation(struct kvm_vcpu *vcpu) vcpu->arch.shregs.msr = msr; return RESUME_GUEST; - case PPC_INST_TRECLAIM: + /* ignore bit 31, see comment above */ + case (PPC_INST_TRECLAIM & PO_XOP_OPCODE_MASK): /* check for TM disabled in the HFSCR or MSR */ if (!(vcpu->arch.hfscr & HFSCR_TM)) { /* generate an illegal instruction interrupt */ @@ -176,7 +191,8 @@ int kvmhv_p9_tm_emulation(struct kvm_vcpu *vcpu) vcpu->arch.shregs.msr &= ~MSR_TS_MASK; return RESUME_GUEST; - case PPC_INST_TRECHKPT: + /* ignore bit 31, see comment above */ + case (PPC_INST_TRECHKPT & PO_XOP_OPCODE_MASK): /* XXX do we need to check for PR=0 here? */ /* check for TM disabled in the HFSCR or MSR */ if (!(vcpu->arch.hfscr & HFSCR_TM)) { @@ -208,6 +224,8 @@ int kvmhv_p9_tm_emulation(struct kvm_vcpu *vcpu) } /* What should we do here? We didn't recognize the instruction */ - WARN_ON_ONCE(1); + kvmppc_core_queue_program(vcpu, SRR1_PROGILL); + pr_warn_ratelimited("Unrecognized TM-related instruction %#x for emulation", instr); + return RESUME_GUEST; } diff --git a/arch/powerpc/kvm/book3s_hv_tm_builtin.c b/arch/powerpc/kvm/book3s_hv_tm_builtin.c index 217246279dfa..fad931f224ef 100644 --- a/arch/powerpc/kvm/book3s_hv_tm_builtin.c +++ b/arch/powerpc/kvm/book3s_hv_tm_builtin.c @@ -23,7 +23,18 @@ int kvmhv_p9_tm_emulation_early(struct kvm_vcpu *vcpu) u64 newmsr, msr, bescr; int rs; - switch (instr & 0xfc0007ff) { + /* + * rfid, rfebb, and mtmsrd encode bit 31 = 0 since it's a reserved bit + * in these instructions, so masking bit 31 out doesn't change these + * instructions. For the tsr. instruction if bit 31 = 0 then it is per + * ISA an invalid form, however P9 UM, in section 4.6.10 Book II Invalid + * Forms, informs specifically that ignoring bit 31 is an acceptable way + * to handle TM-related invalid forms that have bit 31 = 0. Moreover, + * for emulation purposes both forms (w/ and wo/ bit 31 set) can + * generate a softpatch interrupt. Hence both forms are handled below + * for tsr. to make them behave the same way. + */ + switch (instr & PO_XOP_OPCODE_MASK) { case PPC_INST_RFID: /* XXX do we need to check for PR=0 here? */ newmsr = vcpu->arch.shregs.srr1; @@ -73,7 +84,8 @@ int kvmhv_p9_tm_emulation_early(struct kvm_vcpu *vcpu) vcpu->arch.shregs.msr = newmsr; return 1; - case PPC_INST_TSR: + /* ignore bit 31, see comment above */ + case (PPC_INST_TSR & PO_XOP_OPCODE_MASK): /* we know the MSR has the TS field = S (0b01) here */ msr = vcpu->arch.shregs.msr; /* check for PR=1 and arch 2.06 bit set in PCR */ diff --git a/arch/powerpc/kvm/book3s_hv_uvmem.c b/arch/powerpc/kvm/book3s_hv_uvmem.c index 79b1202b1c62..76d05c71fb1f 100644 --- a/arch/powerpc/kvm/book3s_hv_uvmem.c +++ b/arch/powerpc/kvm/book3s_hv_uvmem.c @@ -113,6 +113,15 @@ struct kvmppc_uvmem_page_pvt { bool skip_page_out; }; +bool kvmppc_uvmem_available(void) +{ + /* + * If kvmppc_uvmem_bitmap != NULL, then there is an ultravisor + * and our data structures have been initialized successfully. + */ + return !!kvmppc_uvmem_bitmap; +} + int kvmppc_uvmem_slot_init(struct kvm *kvm, const struct kvm_memory_slot *slot) { struct kvmppc_uvmem_slot *p; @@ -209,6 +218,8 @@ unsigned long kvmppc_h_svm_init_start(struct kvm *kvm) int ret = H_SUCCESS; int srcu_idx; + kvm->arch.secure_guest = KVMPPC_SECURE_INIT_START; + if (!kvmppc_uvmem_bitmap) return H_UNSUPPORTED; @@ -216,6 +227,10 @@ unsigned long kvmppc_h_svm_init_start(struct kvm *kvm) if (!kvm_is_radix(kvm)) return H_UNSUPPORTED; + /* NAK the transition to secure if not enabled */ + if (!kvm->arch.svm_enabled) + return H_AUTHORITY; + srcu_idx = srcu_read_lock(&kvm->srcu); slots = kvm_memslots(kvm); kvm_for_each_memslot(memslot, slots) { @@ -233,7 +248,6 @@ unsigned long kvmppc_h_svm_init_start(struct kvm *kvm) goto out; } } - kvm->arch.secure_guest |= KVMPPC_SECURE_INIT_START; out: srcu_read_unlock(&kvm->srcu, srcu_idx); return ret; @@ -563,6 +577,7 @@ kvmppc_svm_page_out(struct vm_area_struct *vma, unsigned long start, mig.end = end; mig.src = &src_pfn; mig.dst = &dst_pfn; + mig.src_owner = &kvmppc_uvmem_pgmap; mutex_lock(&kvm->arch.uvmem_lock); /* The requested page is already paged-out, nothing to do */ @@ -779,6 +794,8 @@ int kvmppc_uvmem_init(void) kvmppc_uvmem_pgmap.type = MEMORY_DEVICE_PRIVATE; kvmppc_uvmem_pgmap.res = *res; kvmppc_uvmem_pgmap.ops = &kvmppc_uvmem_ops; + /* just one global instance: */ + kvmppc_uvmem_pgmap.owner = &kvmppc_uvmem_pgmap; addr = memremap_pages(&kvmppc_uvmem_pgmap, NUMA_NO_NODE); if (IS_ERR(addr)) { ret = PTR_ERR(addr); @@ -806,6 +823,9 @@ out: void kvmppc_uvmem_free(void) { + if (!kvmppc_uvmem_bitmap) + return; + memunmap_pages(&kvmppc_uvmem_pgmap); release_mem_region(kvmppc_uvmem_pgmap.res.start, resource_size(&kvmppc_uvmem_pgmap.res)); diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index 729a0f12a752..a0f6813f4560 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -740,7 +740,7 @@ int kvmppc_handle_pagefault(struct kvm_run *run, struct kvm_vcpu *vcpu, (vcpu->arch.hflags & BOOK3S_HFLAG_SPLIT_HACK) && ((pte.raddr & SPLIT_HACK_MASK) == SPLIT_HACK_OFFS)) pte.raddr &= ~SPLIT_HACK_MASK; - /* fall through */ + fallthrough; case MSR_IR: vcpu->arch.mmu.esid_to_vsid(vcpu, eaddr >> SID_SHIFT, &vsid); @@ -1795,7 +1795,7 @@ static int kvmppc_core_vcpu_create_pr(struct kvm_vcpu *vcpu) vcpu->arch.shadow_msr = MSR_USER64 & ~MSR_LE; - err = kvmppc_mmu_init(vcpu); + err = kvmppc_mmu_init_pr(vcpu); if (err < 0) goto free_shared_page; @@ -1817,6 +1817,7 @@ static void kvmppc_core_vcpu_free_pr(struct kvm_vcpu *vcpu) { struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu); + kvmppc_mmu_destroy_pr(vcpu); free_page((unsigned long)vcpu->arch.shared & PAGE_MASK); #ifdef CONFIG_KVM_BOOK3S_32_HANDLER kfree(vcpu->arch.shadow_vcpu); @@ -1884,7 +1885,6 @@ out: static int kvm_vm_ioctl_get_dirty_log_pr(struct kvm *kvm, struct kvm_dirty_log *log) { - struct kvm_memslots *slots; struct kvm_memory_slot *memslot; struct kvm_vcpu *vcpu; ulong ga, ga_end; @@ -1894,15 +1894,12 @@ static int kvm_vm_ioctl_get_dirty_log_pr(struct kvm *kvm, mutex_lock(&kvm->slots_lock); - r = kvm_get_dirty_log(kvm, log, &is_dirty); + r = kvm_get_dirty_log(kvm, log, &is_dirty, &memslot); if (r) goto out; /* If nothing is dirty, don't bother messing with page tables. */ if (is_dirty) { - slots = kvm_memslots(kvm); - memslot = id_to_memslot(slots, log->slot); - ga = memslot->base_gfn << PAGE_SHIFT; ga_end = ga + (memslot->npages << PAGE_SHIFT); @@ -1927,7 +1924,8 @@ static void kvmppc_core_flush_memslot_pr(struct kvm *kvm, static int kvmppc_core_prepare_memory_region_pr(struct kvm *kvm, struct kvm_memory_slot *memslot, - const struct kvm_userspace_memory_region *mem) + const struct kvm_userspace_memory_region *mem, + enum kvm_mr_change change) { return 0; } @@ -1941,19 +1939,11 @@ static void kvmppc_core_commit_memory_region_pr(struct kvm *kvm, return; } -static void kvmppc_core_free_memslot_pr(struct kvm_memory_slot *free, - struct kvm_memory_slot *dont) +static void kvmppc_core_free_memslot_pr(struct kvm_memory_slot *slot) { return; } -static int kvmppc_core_create_memslot_pr(struct kvm_memory_slot *slot, - unsigned long npages) -{ - return 0; -} - - #ifdef CONFIG_PPC64 static int kvm_vm_ioctl_get_smmu_info_pr(struct kvm *kvm, struct kvm_ppc_smmu_info *info) @@ -2097,9 +2087,7 @@ static struct kvmppc_ops kvm_ops_pr = { .age_hva = kvm_age_hva_pr, .test_age_hva = kvm_test_age_hva_pr, .set_spte_hva = kvm_set_spte_hva_pr, - .mmu_destroy = kvmppc_mmu_destroy_pr, .free_memslot = kvmppc_core_free_memslot_pr, - .create_memslot = kvmppc_core_create_memslot_pr, .init_vm = kvmppc_core_init_vm_pr, .destroy_vm = kvmppc_core_destroy_vm_pr, .get_smmu_info = kvm_vm_ioctl_get_smmu_info_pr, diff --git a/arch/powerpc/kvm/book3s_segment.S b/arch/powerpc/kvm/book3s_segment.S index 0169bab544dd..1f492aa4c8d6 100644 --- a/arch/powerpc/kvm/book3s_segment.S +++ b/arch/powerpc/kvm/book3s_segment.S @@ -167,16 +167,9 @@ kvmppc_interrupt_pr: * R12 = (guest CR << 32) | exit handler id * R13 = PACA * HSTATE.SCRATCH0 = guest R12 - * HSTATE.SCRATCH1 = guest CTR if RELOCATABLE */ #ifdef CONFIG_PPC64 /* Match 32-bit entry */ -#ifdef CONFIG_RELOCATABLE - std r9, HSTATE_SCRATCH2(r13) - ld r9, HSTATE_SCRATCH1(r13) - mtctr r9 - ld r9, HSTATE_SCRATCH2(r13) -#endif rotldi r12, r12, 32 /* Flip R12 halves for stw */ stw r12, HSTATE_SCRATCH1(r13) /* CR is now in the low half */ srdi r12, r12, 32 /* shift trap into low half */ diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index 7b27604adadf..6c18ea88fd25 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -421,11 +421,11 @@ static int kvmppc_booke_irqprio_deliver(struct kvm_vcpu *vcpu, case BOOKE_IRQPRIO_DATA_STORAGE: case BOOKE_IRQPRIO_ALIGNMENT: update_dear = true; - /* fall through */ + fallthrough; case BOOKE_IRQPRIO_INST_STORAGE: case BOOKE_IRQPRIO_PROGRAM: update_esr = true; - /* fall through */ + fallthrough; case BOOKE_IRQPRIO_ITLB_MISS: case BOOKE_IRQPRIO_SYSCALL: case BOOKE_IRQPRIO_FP_UNAVAIL: @@ -459,7 +459,7 @@ static int kvmppc_booke_irqprio_deliver(struct kvm_vcpu *vcpu, case BOOKE_IRQPRIO_DECREMENTER: case BOOKE_IRQPRIO_FIT: keep_irq = true; - /* fall through */ + fallthrough; case BOOKE_IRQPRIO_EXTERNAL: case BOOKE_IRQPRIO_DBELL: allowed = vcpu->arch.shared->msr & MSR_EE; @@ -1766,25 +1766,24 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, return r; } -int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log) +void kvm_arch_sync_dirty_log(struct kvm *kvm, struct kvm_memory_slot *memslot) { - return -ENOTSUPP; + } -void kvmppc_core_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free, - struct kvm_memory_slot *dont) +int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log) { + return -ENOTSUPP; } -int kvmppc_core_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot, - unsigned long npages) +void kvmppc_core_free_memslot(struct kvm *kvm, struct kvm_memory_slot *slot) { - return 0; } int kvmppc_core_prepare_memory_region(struct kvm *kvm, struct kvm_memory_slot *memslot, - const struct kvm_userspace_memory_region *mem) + const struct kvm_userspace_memory_region *mem, + enum kvm_mr_change change) { return 0; } @@ -2074,11 +2073,6 @@ void kvmppc_booke_vcpu_put(struct kvm_vcpu *vcpu) kvmppc_clear_dbsr(); } -void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu) -{ - vcpu->kvm->arch.kvm_ops->mmu_destroy(vcpu); -} - int kvmppc_core_init_vm(struct kvm *kvm) { return kvm->arch.kvm_ops->init_vm(kvm); diff --git a/arch/powerpc/kvm/booke.h b/arch/powerpc/kvm/booke.h index 9d3169fbce55..65b4d337d337 100644 --- a/arch/powerpc/kvm/booke.h +++ b/arch/powerpc/kvm/booke.h @@ -94,7 +94,6 @@ enum int_class { void kvmppc_set_pending_interrupt(struct kvm_vcpu *vcpu, enum int_class type); -extern void kvmppc_mmu_destroy_e500(struct kvm_vcpu *vcpu); extern int kvmppc_core_emulate_op_e500(struct kvm_run *run, struct kvm_vcpu *vcpu, unsigned int inst, int *advance); @@ -102,7 +101,6 @@ extern int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn, ulong spr_val); extern int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val); -extern void kvmppc_mmu_destroy_e500(struct kvm_vcpu *vcpu); extern int kvmppc_core_emulate_op_e500(struct kvm_run *run, struct kvm_vcpu *vcpu, unsigned int inst, int *advance); diff --git a/arch/powerpc/kvm/e500.c b/arch/powerpc/kvm/e500.c index f2b4feaff6d2..7e8b69015d20 100644 --- a/arch/powerpc/kvm/e500.c +++ b/arch/powerpc/kvm/e500.c @@ -490,7 +490,6 @@ static struct kvmppc_ops kvm_ops_e500 = { .vcpu_put = kvmppc_core_vcpu_put_e500, .vcpu_create = kvmppc_core_vcpu_create_e500, .vcpu_free = kvmppc_core_vcpu_free_e500, - .mmu_destroy = kvmppc_mmu_destroy_e500, .init_vm = kvmppc_core_init_vm_e500, .destroy_vm = kvmppc_core_destroy_vm_e500, .emulate_op = kvmppc_core_emulate_op_e500, diff --git a/arch/powerpc/kvm/e500_mmu.c b/arch/powerpc/kvm/e500_mmu.c index 2d910b87e441..e131fbecdcc4 100644 --- a/arch/powerpc/kvm/e500_mmu.c +++ b/arch/powerpc/kvm/e500_mmu.c @@ -533,10 +533,6 @@ gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int index, return get_tlb_raddr(gtlbe) | (eaddr & pgmask); } -void kvmppc_mmu_destroy_e500(struct kvm_vcpu *vcpu) -{ -} - /*****************************************/ static void free_gtlb(struct kvmppc_vcpu_e500 *vcpu_e500) diff --git a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_host.c index 425d13806645..df9989cf7ba3 100644 --- a/arch/powerpc/kvm/e500_mmu_host.c +++ b/arch/powerpc/kvm/e500_mmu_host.c @@ -422,7 +422,7 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500, break; } } else if (vma && hva >= vma->vm_start && - (vma->vm_flags & VM_HUGETLB)) { + is_vm_hugetlb_page(vma)) { unsigned long psize = vma_kernel_pagesize(vma); tsize = (gtlbe->mas1 & MAS1_TSIZE_MASK) >> diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c index e6b06cb2b92c..1c189b5aadcc 100644 --- a/arch/powerpc/kvm/e500mc.c +++ b/arch/powerpc/kvm/e500mc.c @@ -376,7 +376,6 @@ static struct kvmppc_ops kvm_ops_e500mc = { .vcpu_put = kvmppc_core_vcpu_put_e500mc, .vcpu_create = kvmppc_core_vcpu_create_e500mc, .vcpu_free = kvmppc_core_vcpu_free_e500mc, - .mmu_destroy = kvmppc_mmu_destroy_e500, .init_vm = kvmppc_core_init_vm_e500mc, .destroy_vm = kvmppc_core_destroy_vm_e500mc, .emulate_op = kvmppc_core_emulate_op_e500, diff --git a/arch/powerpc/kvm/mpic.c b/arch/powerpc/kvm/mpic.c index fe312c160d97..23e9c2bd9f27 100644 --- a/arch/powerpc/kvm/mpic.c +++ b/arch/powerpc/kvm/mpic.c @@ -32,7 +32,6 @@ #include <linux/uaccess.h> #include <asm/mpic.h> #include <asm/kvm_para.h> -#include <asm/kvm_host.h> #include <asm/kvm_ppc.h> #include <kvm/iodev.h> diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 1af96fb5dc6f..e15166b0a16d 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -32,7 +32,6 @@ #include <asm/plpar_wrappers.h> #endif #include <asm/ultravisor.h> -#include <asm/kvm_host.h> #include "timing.h" #include "irq.h" @@ -416,12 +415,12 @@ int kvm_arch_hardware_enable(void) return 0; } -int kvm_arch_hardware_setup(void) +int kvm_arch_hardware_setup(void *opaque) { return 0; } -int kvm_arch_check_processor_compat(void) +int kvm_arch_check_processor_compat(void *opaque) { return kvmppc_core_check_processor_compat(); } @@ -525,7 +524,6 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) r = 1; break; case KVM_CAP_PPC_GUEST_DEBUG_SSTEP: - /* fall through */ case KVM_CAP_PPC_PAIRED_SINGLES: case KVM_CAP_PPC_OSI: case KVM_CAP_PPC_GET_PVINFO: @@ -671,6 +669,12 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) (hv_enabled && cpu_has_feature(CPU_FTR_P9_TM_HV_ASSIST)); break; #endif +#if defined(CONFIG_KVM_BOOK3S_HV_POSSIBLE) + case KVM_CAP_PPC_SECURE_GUEST: + r = hv_enabled && kvmppc_hv_ops->enable_svm && + !kvmppc_hv_ops->enable_svm(NULL); + break; +#endif default: r = 0; break; @@ -685,16 +689,9 @@ long kvm_arch_dev_ioctl(struct file *filp, return -EINVAL; } -void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free, - struct kvm_memory_slot *dont) -{ - kvmppc_core_free_memslot(kvm, free, dont); -} - -int kvm_arch_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot, - unsigned long npages) +void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *slot) { - return kvmppc_core_create_memslot(kvm, slot, npages); + kvmppc_core_free_memslot(kvm, slot); } int kvm_arch_prepare_memory_region(struct kvm *kvm, @@ -702,12 +699,12 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm, const struct kvm_userspace_memory_region *mem, enum kvm_mr_change change) { - return kvmppc_core_prepare_memory_region(kvm, memslot, mem); + return kvmppc_core_prepare_memory_region(kvm, memslot, mem, change); } void kvm_arch_commit_memory_region(struct kvm *kvm, const struct kvm_userspace_memory_region *mem, - const struct kvm_memory_slot *old, + struct kvm_memory_slot *old, const struct kvm_memory_slot *new, enum kvm_mr_change change) { @@ -759,7 +756,6 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu) return 0; out_vcpu_uninit: - kvmppc_mmu_destroy(vcpu); kvmppc_subarch_vcpu_uninit(vcpu); return err; } @@ -792,7 +788,6 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu) kvmppc_core_vcpu_free(vcpu); - kvmppc_mmu_destroy(vcpu); kvmppc_subarch_vcpu_uninit(vcpu); } @@ -2178,6 +2173,14 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm, r = kvm->arch.kvm_ops->enable_nested(kvm); break; #endif +#if defined(CONFIG_KVM_BOOK3S_HV_POSSIBLE) + case KVM_CAP_PPC_SECURE_GUEST: + r = -EINVAL; + if (!is_kvmppc_hv_enabled(kvm) || !kvm->arch.kvm_ops->enable_svm) + break; + r = kvm->arch.kvm_ops->enable_svm(kvm); + break; +#endif default: r = -EINVAL; break; diff --git a/arch/powerpc/kvm/timing.c b/arch/powerpc/kvm/timing.c index bfe4f106cffc..ba56a5cbba97 100644 --- a/arch/powerpc/kvm/timing.c +++ b/arch/powerpc/kvm/timing.c @@ -211,23 +211,14 @@ void kvmppc_create_vcpu_debugfs(struct kvm_vcpu *vcpu, unsigned int id) snprintf(dbg_fname, sizeof(dbg_fname), "vm%u_vcpu%u_timing", current->pid, id); - debugfs_file = debugfs_create_file(dbg_fname, 0666, - kvm_debugfs_dir, vcpu, - &kvmppc_exit_timing_fops); - - if (!debugfs_file) { - printk(KERN_ERR"%s: error creating debugfs file %s\n", - __func__, dbg_fname); - return; - } + debugfs_file = debugfs_create_file(dbg_fname, 0666, kvm_debugfs_dir, + vcpu, &kvmppc_exit_timing_fops); vcpu->arch.debugfs_exit_timing = debugfs_file; } void kvmppc_remove_vcpu_debugfs(struct kvm_vcpu *vcpu) { - if (vcpu->arch.debugfs_exit_timing) { - debugfs_remove(vcpu->arch.debugfs_exit_timing); - vcpu->arch.debugfs_exit_timing = NULL; - } + debugfs_remove(vcpu->arch.debugfs_exit_timing); + vcpu->arch.debugfs_exit_timing = NULL; } diff --git a/arch/powerpc/kvm/timing.h b/arch/powerpc/kvm/timing.h index ace65f9fed30..feef7885ba82 100644 --- a/arch/powerpc/kvm/timing.h +++ b/arch/powerpc/kvm/timing.h @@ -10,7 +10,6 @@ #define __POWERPC_KVM_EXITTIMING_H__ #include <linux/kvm_host.h> -#include <asm/kvm_host.h> #ifdef CONFIG_KVM_EXIT_TIMING void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu); |