diff options
Diffstat (limited to 'tools/testing/selftests/kvm/lib/aarch64/processor.c')
| -rw-r--r-- | tools/testing/selftests/kvm/lib/aarch64/processor.c | 639 |
1 files changed, 0 insertions, 639 deletions
diff --git a/tools/testing/selftests/kvm/lib/aarch64/processor.c b/tools/testing/selftests/kvm/lib/aarch64/processor.c deleted file mode 100644 index a9eb17295be4..000000000000 --- a/tools/testing/selftests/kvm/lib/aarch64/processor.c +++ /dev/null @@ -1,639 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * AArch64 code - * - * Copyright (C) 2018, Red Hat, Inc. - */ - -#include <linux/compiler.h> -#include <assert.h> - -#include "guest_modes.h" -#include "kvm_util.h" -#include "processor.h" -#include <linux/bitfield.h> -#include <linux/sizes.h> - -#define DEFAULT_ARM64_GUEST_STACK_VADDR_MIN 0xac0000 - -static vm_vaddr_t exception_handlers; - -static uint64_t page_align(struct kvm_vm *vm, uint64_t v) -{ - return (v + vm->page_size) & ~(vm->page_size - 1); -} - -static uint64_t pgd_index(struct kvm_vm *vm, vm_vaddr_t gva) -{ - unsigned int shift = (vm->pgtable_levels - 1) * (vm->page_shift - 3) + vm->page_shift; - uint64_t mask = (1UL << (vm->va_bits - shift)) - 1; - - return (gva >> shift) & mask; -} - -static uint64_t pud_index(struct kvm_vm *vm, vm_vaddr_t gva) -{ - unsigned int shift = 2 * (vm->page_shift - 3) + vm->page_shift; - uint64_t mask = (1UL << (vm->page_shift - 3)) - 1; - - TEST_ASSERT(vm->pgtable_levels == 4, - "Mode %d does not have 4 page table levels", vm->mode); - - return (gva >> shift) & mask; -} - -static uint64_t pmd_index(struct kvm_vm *vm, vm_vaddr_t gva) -{ - unsigned int shift = (vm->page_shift - 3) + vm->page_shift; - uint64_t mask = (1UL << (vm->page_shift - 3)) - 1; - - TEST_ASSERT(vm->pgtable_levels >= 3, - "Mode %d does not have >= 3 page table levels", vm->mode); - - return (gva >> shift) & mask; -} - -static uint64_t pte_index(struct kvm_vm *vm, vm_vaddr_t gva) -{ - uint64_t mask = (1UL << (vm->page_shift - 3)) - 1; - return (gva >> vm->page_shift) & mask; -} - -static inline bool use_lpa2_pte_format(struct kvm_vm *vm) -{ - return (vm->page_size == SZ_4K || vm->page_size == SZ_16K) && - (vm->pa_bits > 48 || vm->va_bits > 48); -} - -static uint64_t addr_pte(struct kvm_vm *vm, uint64_t pa, uint64_t attrs) -{ - uint64_t pte; - - if (use_lpa2_pte_format(vm)) { - pte = pa & GENMASK(49, vm->page_shift); - pte |= FIELD_GET(GENMASK(51, 50), pa) << 8; - attrs &= ~GENMASK(9, 8); - } else { - pte = pa & GENMASK(47, vm->page_shift); - if (vm->page_shift == 16) - pte |= FIELD_GET(GENMASK(51, 48), pa) << 12; - } - pte |= attrs; - - return pte; -} - -static uint64_t pte_addr(struct kvm_vm *vm, uint64_t pte) -{ - uint64_t pa; - - if (use_lpa2_pte_format(vm)) { - pa = pte & GENMASK(49, vm->page_shift); - pa |= FIELD_GET(GENMASK(9, 8), pte) << 50; - } else { - pa = pte & GENMASK(47, vm->page_shift); - if (vm->page_shift == 16) - pa |= FIELD_GET(GENMASK(15, 12), pte) << 48; - } - - return pa; -} - -static uint64_t ptrs_per_pgd(struct kvm_vm *vm) -{ - unsigned int shift = (vm->pgtable_levels - 1) * (vm->page_shift - 3) + vm->page_shift; - return 1 << (vm->va_bits - shift); -} - -static uint64_t __maybe_unused ptrs_per_pte(struct kvm_vm *vm) -{ - return 1 << (vm->page_shift - 3); -} - -void virt_arch_pgd_alloc(struct kvm_vm *vm) -{ - size_t nr_pages = page_align(vm, ptrs_per_pgd(vm) * 8) / vm->page_size; - - if (vm->pgd_created) - return; - - vm->pgd = vm_phy_pages_alloc(vm, nr_pages, - KVM_GUEST_PAGE_TABLE_MIN_PADDR, - vm->memslots[MEM_REGION_PT]); - vm->pgd_created = true; -} - -static void _virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr, - uint64_t flags) -{ - uint8_t attr_idx = flags & 7; - uint64_t *ptep; - - TEST_ASSERT((vaddr % vm->page_size) == 0, - "Virtual address not on page boundary,\n" - " vaddr: 0x%lx vm->page_size: 0x%x", vaddr, vm->page_size); - TEST_ASSERT(sparsebit_is_set(vm->vpages_valid, - (vaddr >> vm->page_shift)), - "Invalid virtual address, vaddr: 0x%lx", vaddr); - TEST_ASSERT((paddr % vm->page_size) == 0, - "Physical address not on page boundary,\n" - " paddr: 0x%lx vm->page_size: 0x%x", paddr, vm->page_size); - TEST_ASSERT((paddr >> vm->page_shift) <= vm->max_gfn, - "Physical address beyond beyond maximum supported,\n" - " paddr: 0x%lx vm->max_gfn: 0x%lx vm->page_size: 0x%x", - paddr, vm->max_gfn, vm->page_size); - - ptep = addr_gpa2hva(vm, vm->pgd) + pgd_index(vm, vaddr) * 8; - if (!*ptep) - *ptep = addr_pte(vm, vm_alloc_page_table(vm), 3); - - switch (vm->pgtable_levels) { - case 4: - ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pud_index(vm, vaddr) * 8; - if (!*ptep) - *ptep = addr_pte(vm, vm_alloc_page_table(vm), 3); - /* fall through */ - case 3: - ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pmd_index(vm, vaddr) * 8; - if (!*ptep) - *ptep = addr_pte(vm, vm_alloc_page_table(vm), 3); - /* fall through */ - case 2: - ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pte_index(vm, vaddr) * 8; - break; - default: - TEST_FAIL("Page table levels must be 2, 3, or 4"); - } - - *ptep = addr_pte(vm, paddr, (attr_idx << 2) | (1 << 10) | 3); /* AF */ -} - -void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr) -{ - uint64_t attr_idx = MT_NORMAL; - - _virt_pg_map(vm, vaddr, paddr, attr_idx); -} - -uint64_t *virt_get_pte_hva(struct kvm_vm *vm, vm_vaddr_t gva) -{ - uint64_t *ptep; - - if (!vm->pgd_created) - goto unmapped_gva; - - ptep = addr_gpa2hva(vm, vm->pgd) + pgd_index(vm, gva) * 8; - if (!ptep) - goto unmapped_gva; - - switch (vm->pgtable_levels) { - case 4: - ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pud_index(vm, gva) * 8; - if (!ptep) - goto unmapped_gva; - /* fall through */ - case 3: - ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pmd_index(vm, gva) * 8; - if (!ptep) - goto unmapped_gva; - /* fall through */ - case 2: - ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pte_index(vm, gva) * 8; - if (!ptep) - goto unmapped_gva; - break; - default: - TEST_FAIL("Page table levels must be 2, 3, or 4"); - } - - return ptep; - -unmapped_gva: - TEST_FAIL("No mapping for vm virtual address, gva: 0x%lx", gva); - exit(EXIT_FAILURE); -} - -vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva) -{ - uint64_t *ptep = virt_get_pte_hva(vm, gva); - - return pte_addr(vm, *ptep) + (gva & (vm->page_size - 1)); -} - -static void pte_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent, uint64_t page, int level) -{ -#ifdef DEBUG - static const char * const type[] = { "", "pud", "pmd", "pte" }; - uint64_t pte, *ptep; - - if (level == 4) - return; - - for (pte = page; pte < page + ptrs_per_pte(vm) * 8; pte += 8) { - ptep = addr_gpa2hva(vm, pte); - if (!*ptep) - continue; - fprintf(stream, "%*s%s: %lx: %lx at %p\n", indent, "", type[level], pte, *ptep, ptep); - pte_dump(stream, vm, indent + 1, pte_addr(vm, *ptep), level + 1); - } -#endif -} - -void virt_arch_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent) -{ - int level = 4 - (vm->pgtable_levels - 1); - uint64_t pgd, *ptep; - - if (!vm->pgd_created) - return; - - for (pgd = vm->pgd; pgd < vm->pgd + ptrs_per_pgd(vm) * 8; pgd += 8) { - ptep = addr_gpa2hva(vm, pgd); - if (!*ptep) - continue; - fprintf(stream, "%*spgd: %lx: %lx at %p\n", indent, "", pgd, *ptep, ptep); - pte_dump(stream, vm, indent + 1, pte_addr(vm, *ptep), level); - } -} - -void aarch64_vcpu_setup(struct kvm_vcpu *vcpu, struct kvm_vcpu_init *init) -{ - struct kvm_vcpu_init default_init = { .target = -1, }; - struct kvm_vm *vm = vcpu->vm; - uint64_t sctlr_el1, tcr_el1, ttbr0_el1; - - if (!init) - init = &default_init; - - if (init->target == -1) { - struct kvm_vcpu_init preferred; - vm_ioctl(vm, KVM_ARM_PREFERRED_TARGET, &preferred); - init->target = preferred.target; - } - - vcpu_ioctl(vcpu, KVM_ARM_VCPU_INIT, init); - - /* - * Enable FP/ASIMD to avoid trapping when accessing Q0-Q15 - * registers, which the variable argument list macros do. - */ - vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_CPACR_EL1), 3 << 20); - - vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_SCTLR_EL1), &sctlr_el1); - vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_TCR_EL1), &tcr_el1); - - /* Configure base granule size */ - switch (vm->mode) { - case VM_MODE_PXXV48_4K: - TEST_FAIL("AArch64 does not support 4K sized pages " - "with ANY-bit physical address ranges"); - case VM_MODE_P52V48_64K: - case VM_MODE_P48V48_64K: - case VM_MODE_P40V48_64K: - case VM_MODE_P36V48_64K: - tcr_el1 |= 1ul << 14; /* TG0 = 64KB */ - break; - case VM_MODE_P52V48_16K: - case VM_MODE_P48V48_16K: - case VM_MODE_P40V48_16K: - case VM_MODE_P36V48_16K: - case VM_MODE_P36V47_16K: - tcr_el1 |= 2ul << 14; /* TG0 = 16KB */ - break; - case VM_MODE_P52V48_4K: - case VM_MODE_P48V48_4K: - case VM_MODE_P40V48_4K: - case VM_MODE_P36V48_4K: - tcr_el1 |= 0ul << 14; /* TG0 = 4KB */ - break; - default: - TEST_FAIL("Unknown guest mode, mode: 0x%x", vm->mode); - } - - ttbr0_el1 = vm->pgd & GENMASK(47, vm->page_shift); - - /* Configure output size */ - switch (vm->mode) { - case VM_MODE_P52V48_4K: - case VM_MODE_P52V48_16K: - case VM_MODE_P52V48_64K: - tcr_el1 |= 6ul << 32; /* IPS = 52 bits */ - ttbr0_el1 |= FIELD_GET(GENMASK(51, 48), vm->pgd) << 2; - break; - case VM_MODE_P48V48_4K: - case VM_MODE_P48V48_16K: - case VM_MODE_P48V48_64K: - tcr_el1 |= 5ul << 32; /* IPS = 48 bits */ - break; - case VM_MODE_P40V48_4K: - case VM_MODE_P40V48_16K: - case VM_MODE_P40V48_64K: - tcr_el1 |= 2ul << 32; /* IPS = 40 bits */ - break; - case VM_MODE_P36V48_4K: - case VM_MODE_P36V48_16K: - case VM_MODE_P36V48_64K: - case VM_MODE_P36V47_16K: - tcr_el1 |= 1ul << 32; /* IPS = 36 bits */ - break; - default: - TEST_FAIL("Unknown guest mode, mode: 0x%x", vm->mode); - } - - sctlr_el1 |= (1 << 0) | (1 << 2) | (1 << 12) /* M | C | I */; - /* TCR_EL1 |= IRGN0:WBWA | ORGN0:WBWA | SH0:Inner-Shareable */; - tcr_el1 |= (1 << 8) | (1 << 10) | (3 << 12); - tcr_el1 |= (64 - vm->va_bits) /* T0SZ */; - if (use_lpa2_pte_format(vm)) - tcr_el1 |= (1ul << 59) /* DS */; - - vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_SCTLR_EL1), sctlr_el1); - vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_TCR_EL1), tcr_el1); - vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_MAIR_EL1), DEFAULT_MAIR_EL1); - vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_TTBR0_EL1), ttbr0_el1); - vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_TPIDR_EL1), vcpu->id); -} - -void vcpu_arch_dump(FILE *stream, struct kvm_vcpu *vcpu, uint8_t indent) -{ - uint64_t pstate, pc; - - vcpu_get_reg(vcpu, ARM64_CORE_REG(regs.pstate), &pstate); - vcpu_get_reg(vcpu, ARM64_CORE_REG(regs.pc), &pc); - - fprintf(stream, "%*spstate: 0x%.16lx pc: 0x%.16lx\n", - indent, "", pstate, pc); -} - -void vcpu_arch_set_entry_point(struct kvm_vcpu *vcpu, void *guest_code) -{ - vcpu_set_reg(vcpu, ARM64_CORE_REG(regs.pc), (uint64_t)guest_code); -} - -static struct kvm_vcpu *__aarch64_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id, - struct kvm_vcpu_init *init) -{ - size_t stack_size; - uint64_t stack_vaddr; - struct kvm_vcpu *vcpu = __vm_vcpu_add(vm, vcpu_id); - - stack_size = vm->page_size == 4096 ? DEFAULT_STACK_PGS * vm->page_size : - vm->page_size; - stack_vaddr = __vm_vaddr_alloc(vm, stack_size, - DEFAULT_ARM64_GUEST_STACK_VADDR_MIN, - MEM_REGION_DATA); - - aarch64_vcpu_setup(vcpu, init); - - vcpu_set_reg(vcpu, ARM64_CORE_REG(sp_el1), stack_vaddr + stack_size); - return vcpu; -} - -struct kvm_vcpu *aarch64_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id, - struct kvm_vcpu_init *init, void *guest_code) -{ - struct kvm_vcpu *vcpu = __aarch64_vcpu_add(vm, vcpu_id, init); - - vcpu_arch_set_entry_point(vcpu, guest_code); - - return vcpu; -} - -struct kvm_vcpu *vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id) -{ - return __aarch64_vcpu_add(vm, vcpu_id, NULL); -} - -void vcpu_args_set(struct kvm_vcpu *vcpu, unsigned int num, ...) -{ - va_list ap; - int i; - - TEST_ASSERT(num >= 1 && num <= 8, "Unsupported number of args,\n" - " num: %u", num); - - va_start(ap, num); - - for (i = 0; i < num; i++) { - vcpu_set_reg(vcpu, ARM64_CORE_REG(regs.regs[i]), - va_arg(ap, uint64_t)); - } - - va_end(ap); -} - -void kvm_exit_unexpected_exception(int vector, uint64_t ec, bool valid_ec) -{ - ucall(UCALL_UNHANDLED, 3, vector, ec, valid_ec); - while (1) - ; -} - -void assert_on_unhandled_exception(struct kvm_vcpu *vcpu) -{ - struct ucall uc; - - if (get_ucall(vcpu, &uc) != UCALL_UNHANDLED) - return; - - if (uc.args[2]) /* valid_ec */ { - assert(VECTOR_IS_SYNC(uc.args[0])); - TEST_FAIL("Unexpected exception (vector:0x%lx, ec:0x%lx)", - uc.args[0], uc.args[1]); - } else { - assert(!VECTOR_IS_SYNC(uc.args[0])); - TEST_FAIL("Unexpected exception (vector:0x%lx)", - uc.args[0]); - } -} - -struct handlers { - handler_fn exception_handlers[VECTOR_NUM][ESR_EC_NUM]; -}; - -void vcpu_init_descriptor_tables(struct kvm_vcpu *vcpu) -{ - extern char vectors; - - vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_VBAR_EL1), (uint64_t)&vectors); -} - -void route_exception(struct ex_regs *regs, int vector) -{ - struct handlers *handlers = (struct handlers *)exception_handlers; - bool valid_ec; - int ec = 0; - - switch (vector) { - case VECTOR_SYNC_CURRENT: - case VECTOR_SYNC_LOWER_64: - ec = (read_sysreg(esr_el1) >> ESR_EC_SHIFT) & ESR_EC_MASK; - valid_ec = true; - break; - case VECTOR_IRQ_CURRENT: - case VECTOR_IRQ_LOWER_64: - case VECTOR_FIQ_CURRENT: - case VECTOR_FIQ_LOWER_64: - case VECTOR_ERROR_CURRENT: - case VECTOR_ERROR_LOWER_64: - ec = 0; - valid_ec = false; - break; - default: - valid_ec = false; - goto unexpected_exception; - } - - if (handlers && handlers->exception_handlers[vector][ec]) - return handlers->exception_handlers[vector][ec](regs); - -unexpected_exception: - kvm_exit_unexpected_exception(vector, ec, valid_ec); -} - -void vm_init_descriptor_tables(struct kvm_vm *vm) -{ - vm->handlers = __vm_vaddr_alloc(vm, sizeof(struct handlers), - vm->page_size, MEM_REGION_DATA); - - *(vm_vaddr_t *)addr_gva2hva(vm, (vm_vaddr_t)(&exception_handlers)) = vm->handlers; -} - -void vm_install_sync_handler(struct kvm_vm *vm, int vector, int ec, - void (*handler)(struct ex_regs *)) -{ - struct handlers *handlers = addr_gva2hva(vm, vm->handlers); - - assert(VECTOR_IS_SYNC(vector)); - assert(vector < VECTOR_NUM); - assert(ec < ESR_EC_NUM); - handlers->exception_handlers[vector][ec] = handler; -} - -void vm_install_exception_handler(struct kvm_vm *vm, int vector, - void (*handler)(struct ex_regs *)) -{ - struct handlers *handlers = addr_gva2hva(vm, vm->handlers); - - assert(!VECTOR_IS_SYNC(vector)); - assert(vector < VECTOR_NUM); - handlers->exception_handlers[vector][0] = handler; -} - -uint32_t guest_get_vcpuid(void) -{ - return read_sysreg(tpidr_el1); -} - -static uint32_t max_ipa_for_page_size(uint32_t vm_ipa, uint32_t gran, - uint32_t not_sup_val, uint32_t ipa52_min_val) -{ - if (gran == not_sup_val) - return 0; - else if (gran >= ipa52_min_val && vm_ipa >= 52) - return 52; - else - return min(vm_ipa, 48U); -} - -void aarch64_get_supported_page_sizes(uint32_t ipa, uint32_t *ipa4k, - uint32_t *ipa16k, uint32_t *ipa64k) -{ - struct kvm_vcpu_init preferred_init; - int kvm_fd, vm_fd, vcpu_fd, err; - uint64_t val; - uint32_t gran; - struct kvm_one_reg reg = { - .id = KVM_ARM64_SYS_REG(SYS_ID_AA64MMFR0_EL1), - .addr = (uint64_t)&val, - }; - - kvm_fd = open_kvm_dev_path_or_exit(); - vm_fd = __kvm_ioctl(kvm_fd, KVM_CREATE_VM, (void *)(unsigned long)ipa); - TEST_ASSERT(vm_fd >= 0, KVM_IOCTL_ERROR(KVM_CREATE_VM, vm_fd)); - - vcpu_fd = ioctl(vm_fd, KVM_CREATE_VCPU, 0); - TEST_ASSERT(vcpu_fd >= 0, KVM_IOCTL_ERROR(KVM_CREATE_VCPU, vcpu_fd)); - - err = ioctl(vm_fd, KVM_ARM_PREFERRED_TARGET, &preferred_init); - TEST_ASSERT(err == 0, KVM_IOCTL_ERROR(KVM_ARM_PREFERRED_TARGET, err)); - err = ioctl(vcpu_fd, KVM_ARM_VCPU_INIT, &preferred_init); - TEST_ASSERT(err == 0, KVM_IOCTL_ERROR(KVM_ARM_VCPU_INIT, err)); - - err = ioctl(vcpu_fd, KVM_GET_ONE_REG, ®); - TEST_ASSERT(err == 0, KVM_IOCTL_ERROR(KVM_GET_ONE_REG, vcpu_fd)); - - gran = FIELD_GET(ARM64_FEATURE_MASK(ID_AA64MMFR0_EL1_TGRAN4), val); - *ipa4k = max_ipa_for_page_size(ipa, gran, ID_AA64MMFR0_EL1_TGRAN4_NI, - ID_AA64MMFR0_EL1_TGRAN4_52_BIT); - - gran = FIELD_GET(ARM64_FEATURE_MASK(ID_AA64MMFR0_EL1_TGRAN64), val); - *ipa64k = max_ipa_for_page_size(ipa, gran, ID_AA64MMFR0_EL1_TGRAN64_NI, - ID_AA64MMFR0_EL1_TGRAN64_IMP); - - gran = FIELD_GET(ARM64_FEATURE_MASK(ID_AA64MMFR0_EL1_TGRAN16), val); - *ipa16k = max_ipa_for_page_size(ipa, gran, ID_AA64MMFR0_EL1_TGRAN16_NI, - ID_AA64MMFR0_EL1_TGRAN16_52_BIT); - - close(vcpu_fd); - close(vm_fd); - close(kvm_fd); -} - -#define __smccc_call(insn, function_id, arg0, arg1, arg2, arg3, arg4, arg5, \ - arg6, res) \ - asm volatile("mov w0, %w[function_id]\n" \ - "mov x1, %[arg0]\n" \ - "mov x2, %[arg1]\n" \ - "mov x3, %[arg2]\n" \ - "mov x4, %[arg3]\n" \ - "mov x5, %[arg4]\n" \ - "mov x6, %[arg5]\n" \ - "mov x7, %[arg6]\n" \ - #insn "#0\n" \ - "mov %[res0], x0\n" \ - "mov %[res1], x1\n" \ - "mov %[res2], x2\n" \ - "mov %[res3], x3\n" \ - : [res0] "=r"(res->a0), [res1] "=r"(res->a1), \ - [res2] "=r"(res->a2), [res3] "=r"(res->a3) \ - : [function_id] "r"(function_id), [arg0] "r"(arg0), \ - [arg1] "r"(arg1), [arg2] "r"(arg2), [arg3] "r"(arg3), \ - [arg4] "r"(arg4), [arg5] "r"(arg5), [arg6] "r"(arg6) \ - : "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7") - - -void smccc_hvc(uint32_t function_id, uint64_t arg0, uint64_t arg1, - uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5, - uint64_t arg6, struct arm_smccc_res *res) -{ - __smccc_call(hvc, function_id, arg0, arg1, arg2, arg3, arg4, arg5, - arg6, res); -} - -void smccc_smc(uint32_t function_id, uint64_t arg0, uint64_t arg1, - uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5, - uint64_t arg6, struct arm_smccc_res *res) -{ - __smccc_call(smc, function_id, arg0, arg1, arg2, arg3, arg4, arg5, - arg6, res); -} - -void kvm_selftest_arch_init(void) -{ - /* - * arm64 doesn't have a true default mode, so start by computing the - * available IPA space and page sizes early. - */ - guest_modes_append_default(); -} - -void vm_vaddr_populate_bitmap(struct kvm_vm *vm) -{ - /* - * arm64 selftests use only TTBR0_EL1, meaning that the valid VA space - * is [0, 2^(64 - TCR_EL1.T0SZ)). - */ - sparsebit_set_num(vm->vpages_valid, 0, - (1ULL << vm->va_bits) >> vm->page_shift); -} |