19 static uint64_t page_align(struct kvm_vm *vm, uint64_t v)  in page_align()  argument
21 	return (v + vm->page_size) & ~(vm->page_size - 1);  in page_align()
24 static uint64_t pgd_index(struct kvm_vm *vm, vm_vaddr_t gva)  in pgd_index()  argument
26 	unsigned int shift = (vm->pgtable_levels - 1) * (vm->page_shift - 3) + vm->page_shift;  in pgd_index()
27 	uint64_t mask = (1UL << (vm->va_bits - shift)) - 1;  in pgd_index()
32 static uint64_t pud_index(struct kvm_vm *vm, vm_vaddr_t gva)  in pud_index()  argument
34 	unsigned int shift = 2 * (vm->page_shift - 3) + vm->page_shift;  in pud_index()
35 	uint64_t mask = (1UL << (vm->page_shift - 3)) - 1;  in pud_index()
37 	TEST_ASSERT(vm->pgtable_levels == 4,  in pud_index()
38 		"Mode %d does not have 4 page table levels", vm->mode);  in pud_index()
43 static uint64_t pmd_index(struct kvm_vm *vm, vm_vaddr_t gva)  in pmd_index()  argument
45 	unsigned int shift = (vm->page_shift - 3) + vm->page_shift;  in pmd_index()
46 	uint64_t mask = (1UL << (vm->page_shift - 3)) - 1;  in pmd_index()
48 	TEST_ASSERT(vm->pgtable_levels >= 3,  in pmd_index()
49 		"Mode %d does not have >= 3 page table levels", vm->mode);  in pmd_index()
54 static uint64_t pte_index(struct kvm_vm *vm, vm_vaddr_t gva)  in pte_index()  argument
56 	uint64_t mask = (1UL << (vm->page_shift - 3)) - 1;  in pte_index()
57 	return (gva >> vm->page_shift) & mask;  in pte_index()
60 static uint64_t pte_addr(struct kvm_vm *vm, uint64_t entry)  in pte_addr()  argument
62 	uint64_t mask = ((1UL << (vm->va_bits - vm->page_shift)) - 1) << vm->page_shift;  in pte_addr()
66 static uint64_t ptrs_per_pgd(struct kvm_vm *vm)  in ptrs_per_pgd()  argument
68 	unsigned int shift = (vm->pgtable_levels - 1) * (vm->page_shift - 3) + vm->page_shift;  in ptrs_per_pgd()
69 	return 1 << (vm->va_bits - shift);  in ptrs_per_pgd()
72 static uint64_t __maybe_unused ptrs_per_pte(struct kvm_vm *vm)  in ptrs_per_pte()  argument
74 	return 1 << (vm->page_shift - 3);  in ptrs_per_pte()
77 void virt_arch_pgd_alloc(struct kvm_vm *vm)  in virt_arch_pgd_alloc()  argument
79 	if (!vm->pgd_created) {  in virt_arch_pgd_alloc()
80 		vm_paddr_t paddr = vm_phy_pages_alloc(vm,  in virt_arch_pgd_alloc()
81 			page_align(vm, ptrs_per_pgd(vm) * 8) / vm->page_size,  in virt_arch_pgd_alloc()
83 		vm->pgd = paddr;  in virt_arch_pgd_alloc()
84 		vm->pgd_created = true;  in virt_arch_pgd_alloc()
88 static void _virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr,  in _virt_pg_map()  argument
94 	TEST_ASSERT((vaddr % vm->page_size) == 0,  in _virt_pg_map()
96 		"  vaddr: 0x%lx vm->page_size: 0x%x", vaddr, vm->page_size);  in _virt_pg_map()
97 	TEST_ASSERT(sparsebit_is_set(vm->vpages_valid,  in _virt_pg_map()
98 		(vaddr >> vm->page_shift)),  in _virt_pg_map()
100 	TEST_ASSERT((paddr % vm->page_size) == 0,  in _virt_pg_map()
102 		"  paddr: 0x%lx vm->page_size: 0x%x", paddr, vm->page_size);  in _virt_pg_map()
103 	TEST_ASSERT((paddr >> vm->page_shift) <= vm->max_gfn,  in _virt_pg_map()
106 		paddr, vm->max_gfn, vm->page_size);  in _virt_pg_map()
108 	ptep = addr_gpa2hva(vm, vm->pgd) + pgd_index(vm, vaddr) * 8;  in _virt_pg_map()
110 		*ptep = vm_alloc_page_table(vm) | 3;  in _virt_pg_map()
112 	switch (vm->pgtable_levels) {  in _virt_pg_map()
114 		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pud_index(vm, vaddr) * 8;  in _virt_pg_map()
116 			*ptep = vm_alloc_page_table(vm) | 3;  in _virt_pg_map()
119 		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pmd_index(vm, vaddr) * 8;  in _virt_pg_map()
121 			*ptep = vm_alloc_page_table(vm) | 3;  in _virt_pg_map()
124 		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pte_index(vm, vaddr) * 8;  in _virt_pg_map()
134 void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)  in virt_arch_pg_map()  argument
138 	_virt_pg_map(vm, vaddr, paddr, attr_idx);  in virt_arch_pg_map()
141 vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)  in addr_arch_gva2gpa()  argument
145 	if (!vm->pgd_created)  in addr_arch_gva2gpa()
148 	ptep = addr_gpa2hva(vm, vm->pgd) + pgd_index(vm, gva) * 8;  in addr_arch_gva2gpa()
152 	switch (vm->pgtable_levels) {  in addr_arch_gva2gpa()
154 		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pud_index(vm, gva) * 8;  in addr_arch_gva2gpa()
159 		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pmd_index(vm, gva) * 8;  in addr_arch_gva2gpa()
164 		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pte_index(vm, gva) * 8;  in addr_arch_gva2gpa()
172 	return pte_addr(vm, *ptep) + (gva & (vm->page_size - 1));  in addr_arch_gva2gpa()
179 static void pte_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent, uint64_t page, int level)  in pte_dump()  argument
188 	for (pte = page; pte < page + ptrs_per_pte(vm) * 8; pte += 8) {  in pte_dump()
189 		ptep = addr_gpa2hva(vm, pte);  in pte_dump()
193 		pte_dump(stream, vm, indent + 1, pte_addr(vm, *ptep), level + 1);  in pte_dump()
198 void virt_arch_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)  in virt_arch_dump()  argument
200 	int level = 4 - (vm->pgtable_levels - 1);  in virt_arch_dump()
203 	if (!vm->pgd_created)  in virt_arch_dump()
206 	for (pgd = vm->pgd; pgd < vm->pgd + ptrs_per_pgd(vm) * 8; pgd += 8) {  in virt_arch_dump()
207 		ptep = addr_gpa2hva(vm, pgd);  in virt_arch_dump()
211 		pte_dump(stream, vm, indent + 1, pte_addr(vm, *ptep), level);  in virt_arch_dump()
218 	struct kvm_vm *vm = vcpu->vm;  in aarch64_vcpu_setup()  local
226 		vm_ioctl(vm, KVM_ARM_PREFERRED_TARGET, &preferred);  in aarch64_vcpu_setup()
242 	switch (vm->mode) {  in aarch64_vcpu_setup()
267 		TEST_FAIL("Unknown guest mode, mode: 0x%x", vm->mode);  in aarch64_vcpu_setup()
271 	switch (vm->mode) {  in aarch64_vcpu_setup()
292 		TEST_FAIL("Unknown guest mode, mode: 0x%x", vm->mode);  in aarch64_vcpu_setup()
298 	tcr_el1 |= (64 - vm->va_bits) /* T0SZ */;  in aarch64_vcpu_setup()
303 	vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_TTBR0_EL1), vm->pgd);  in aarch64_vcpu_setup()
318 struct kvm_vcpu *aarch64_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id,  in aarch64_vcpu_add()  argument
321 	size_t stack_size = vm->page_size == 4096 ?  in aarch64_vcpu_add()
322 					DEFAULT_STACK_PGS * vm->page_size :  in aarch64_vcpu_add()
323 					vm->page_size;  in aarch64_vcpu_add()
324 	uint64_t stack_vaddr = vm_vaddr_alloc(vm, stack_size,  in aarch64_vcpu_add()
326 	struct kvm_vcpu *vcpu = __vm_vcpu_add(vm, vcpu_id);  in aarch64_vcpu_add()
336 struct kvm_vcpu *vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id,  in vm_arch_vcpu_add()  argument
339 	return aarch64_vcpu_add(vm, vcpu_id, NULL, guest_code);  in vm_arch_vcpu_add()
429 void vm_init_descriptor_tables(struct kvm_vm *vm)  in vm_init_descriptor_tables()  argument
431 	vm->handlers = vm_vaddr_alloc(vm, sizeof(struct handlers),  in vm_init_descriptor_tables()
432 			vm->page_size);  in vm_init_descriptor_tables()
434 	*(vm_vaddr_t *)addr_gva2hva(vm, (vm_vaddr_t)(&exception_handlers)) = vm->handlers;  in vm_init_descriptor_tables()
437 void vm_install_sync_handler(struct kvm_vm *vm, int vector, int ec,  in vm_install_sync_handler()  argument
440 	struct handlers *handlers = addr_gva2hva(vm, vm->handlers);  in vm_install_sync_handler()
448 void vm_install_exception_handler(struct kvm_vm *vm, int vector,  in vm_install_exception_handler()  argument
451 	struct handlers *handlers = addr_gva2hva(vm, vm->handlers);  in vm_install_exception_handler()