diff options
Diffstat (limited to 'tools/testing/selftests/kvm/lib/s390x/processor.c')
| -rw-r--r-- | tools/testing/selftests/kvm/lib/s390x/processor.c | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/tools/testing/selftests/kvm/lib/s390x/processor.c b/tools/testing/selftests/kvm/lib/s390x/processor.c deleted file mode 100644 index 20cfe970e3e3..000000000000 --- a/tools/testing/selftests/kvm/lib/s390x/processor.c +++ /dev/null @@ -1,223 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * KVM selftest s390x library code - CPU-related functions (page tables...) - * - * Copyright (C) 2019, Red Hat, Inc. - */ - -#include "processor.h" -#include "kvm_util.h" - -#define PAGES_PER_REGION 4 - -void virt_arch_pgd_alloc(struct kvm_vm *vm) -{ - vm_paddr_t paddr; - - TEST_ASSERT(vm->page_size == PAGE_SIZE, "Unsupported page size: 0x%x", - vm->page_size); - - if (vm->pgd_created) - return; - - paddr = vm_phy_pages_alloc(vm, PAGES_PER_REGION, - KVM_GUEST_PAGE_TABLE_MIN_PADDR, - vm->memslots[MEM_REGION_PT]); - memset(addr_gpa2hva(vm, paddr), 0xff, PAGES_PER_REGION * vm->page_size); - - vm->pgd = paddr; - vm->pgd_created = true; -} - -/* - * Allocate 4 pages for a region/segment table (ri < 4), or one page for - * a page table (ri == 4). Returns a suitable region/segment table entry - * which points to the freshly allocated pages. - */ -static uint64_t virt_alloc_region(struct kvm_vm *vm, int ri) -{ - uint64_t taddr; - - taddr = vm_phy_pages_alloc(vm, ri < 4 ? PAGES_PER_REGION : 1, - KVM_GUEST_PAGE_TABLE_MIN_PADDR, 0); - memset(addr_gpa2hva(vm, taddr), 0xff, PAGES_PER_REGION * vm->page_size); - - return (taddr & REGION_ENTRY_ORIGIN) - | (((4 - ri) << 2) & REGION_ENTRY_TYPE) - | ((ri < 4 ? (PAGES_PER_REGION - 1) : 0) & REGION_ENTRY_LENGTH); -} - -void virt_arch_pg_map(struct kvm_vm *vm, uint64_t gva, uint64_t gpa) -{ - int ri, idx; - uint64_t *entry; - - TEST_ASSERT((gva % vm->page_size) == 0, - "Virtual address not on page boundary,\n" - " vaddr: 0x%lx vm->page_size: 0x%x", - gva, vm->page_size); - TEST_ASSERT(sparsebit_is_set(vm->vpages_valid, - (gva >> vm->page_shift)), - "Invalid virtual address, vaddr: 0x%lx", - gva); - TEST_ASSERT((gpa % vm->page_size) == 0, - "Physical address not on page boundary,\n" - " paddr: 0x%lx vm->page_size: 0x%x", - gva, vm->page_size); - TEST_ASSERT((gpa >> 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", - gva, vm->max_gfn, vm->page_size); - - /* Walk through region and segment tables */ - entry = addr_gpa2hva(vm, vm->pgd); - for (ri = 1; ri <= 4; ri++) { - idx = (gva >> (64 - 11 * ri)) & 0x7ffu; - if (entry[idx] & REGION_ENTRY_INVALID) - entry[idx] = virt_alloc_region(vm, ri); - entry = addr_gpa2hva(vm, entry[idx] & REGION_ENTRY_ORIGIN); - } - - /* Fill in page table entry */ - idx = (gva >> PAGE_SHIFT) & 0x0ffu; /* page index */ - if (!(entry[idx] & PAGE_INVALID)) - fprintf(stderr, - "WARNING: PTE for gpa=0x%"PRIx64" already set!\n", gpa); - entry[idx] = gpa; -} - -vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva) -{ - int ri, idx; - uint64_t *entry; - - TEST_ASSERT(vm->page_size == PAGE_SIZE, "Unsupported page size: 0x%x", - vm->page_size); - - entry = addr_gpa2hva(vm, vm->pgd); - for (ri = 1; ri <= 4; ri++) { - idx = (gva >> (64 - 11 * ri)) & 0x7ffu; - TEST_ASSERT(!(entry[idx] & REGION_ENTRY_INVALID), - "No region mapping for vm virtual address 0x%lx", - gva); - entry = addr_gpa2hva(vm, entry[idx] & REGION_ENTRY_ORIGIN); - } - - idx = (gva >> PAGE_SHIFT) & 0x0ffu; /* page index */ - - TEST_ASSERT(!(entry[idx] & PAGE_INVALID), - "No page mapping for vm virtual address 0x%lx", gva); - - return (entry[idx] & ~0xffful) + (gva & 0xffful); -} - -static void virt_dump_ptes(FILE *stream, struct kvm_vm *vm, uint8_t indent, - uint64_t ptea_start) -{ - uint64_t *pte, ptea; - - for (ptea = ptea_start; ptea < ptea_start + 0x100 * 8; ptea += 8) { - pte = addr_gpa2hva(vm, ptea); - if (*pte & PAGE_INVALID) - continue; - fprintf(stream, "%*spte @ 0x%lx: 0x%016lx\n", - indent, "", ptea, *pte); - } -} - -static void virt_dump_region(FILE *stream, struct kvm_vm *vm, uint8_t indent, - uint64_t reg_tab_addr) -{ - uint64_t addr, *entry; - - for (addr = reg_tab_addr; addr < reg_tab_addr + 0x400 * 8; addr += 8) { - entry = addr_gpa2hva(vm, addr); - if (*entry & REGION_ENTRY_INVALID) - continue; - fprintf(stream, "%*srt%lde @ 0x%lx: 0x%016lx\n", - indent, "", 4 - ((*entry & REGION_ENTRY_TYPE) >> 2), - addr, *entry); - if (*entry & REGION_ENTRY_TYPE) { - virt_dump_region(stream, vm, indent + 2, - *entry & REGION_ENTRY_ORIGIN); - } else { - virt_dump_ptes(stream, vm, indent + 2, - *entry & REGION_ENTRY_ORIGIN); - } - } -} - -void virt_arch_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent) -{ - if (!vm->pgd_created) - return; - - virt_dump_region(stream, vm, indent, vm->pgd); -} - -void vcpu_arch_set_entry_point(struct kvm_vcpu *vcpu, void *guest_code) -{ - vcpu->run->psw_addr = (uintptr_t)guest_code; -} - -struct kvm_vcpu *vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id) -{ - size_t stack_size = DEFAULT_STACK_PGS * getpagesize(); - uint64_t stack_vaddr; - struct kvm_regs regs; - struct kvm_sregs sregs; - struct kvm_vcpu *vcpu; - - TEST_ASSERT(vm->page_size == PAGE_SIZE, "Unsupported page size: 0x%x", - vm->page_size); - - stack_vaddr = __vm_vaddr_alloc(vm, stack_size, - DEFAULT_GUEST_STACK_VADDR_MIN, - MEM_REGION_DATA); - - vcpu = __vm_vcpu_add(vm, vcpu_id); - - /* Setup guest registers */ - vcpu_regs_get(vcpu, ®s); - regs.gprs[15] = stack_vaddr + (DEFAULT_STACK_PGS * getpagesize()) - 160; - vcpu_regs_set(vcpu, ®s); - - vcpu_sregs_get(vcpu, &sregs); - sregs.crs[0] |= 0x00040000; /* Enable floating point regs */ - sregs.crs[1] = vm->pgd | 0xf; /* Primary region table */ - vcpu_sregs_set(vcpu, &sregs); - - vcpu->run->psw_mask = 0x0400000180000000ULL; /* DAT enabled + 64 bit mode */ - - return vcpu; -} - -void vcpu_args_set(struct kvm_vcpu *vcpu, unsigned int num, ...) -{ - va_list ap; - struct kvm_regs regs; - int i; - - TEST_ASSERT(num >= 1 && num <= 5, "Unsupported number of args,\n" - " num: %u", - num); - - va_start(ap, num); - vcpu_regs_get(vcpu, ®s); - - for (i = 0; i < num; i++) - regs.gprs[i + 2] = va_arg(ap, uint64_t); - - vcpu_regs_set(vcpu, ®s); - va_end(ap); -} - -void vcpu_arch_dump(FILE *stream, struct kvm_vcpu *vcpu, uint8_t indent) -{ - fprintf(stream, "%*spstate: psw: 0x%.16llx:0x%.16llx\n", - indent, "", vcpu->run->psw_mask, vcpu->run->psw_addr); -} - -void assert_on_unhandled_exception(struct kvm_vcpu *vcpu) -{ -} |