diff options
| author | Fuad Tabba <tabba@google.com> | 2026-01-09 11:22:17 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2026-01-15 16:39:53 +0300 |
| commit | de00d07321cf3f182762de2308c08062d5b824c0 (patch) | |
| tree | 871ad1a3aa337d185633cbb64525e6fc85376a54 | |
| parent | 582b39463f1c0774e0b3cb5be2118e8564b7941e (diff) | |
| download | linux-de00d07321cf3f182762de2308c08062d5b824c0.tar.xz | |
KVM: selftests: Move page_align() to shared header
To avoid code duplication, move page_align() to the shared `kvm_util.h`
header file. Rename it to vm_page_align(), to make it clear that the
alignment is done with respect to the guest's base page size.
No functional change intended.
Reviewed-by: Andrew Jones <andrew.jones@linux.dev>
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260109082218.3236580-5-tabba@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
| -rw-r--r-- | tools/testing/selftests/kvm/include/kvm_util.h | 5 | ||||
| -rw-r--r-- | tools/testing/selftests/kvm/lib/arm64/processor.c | 7 | ||||
| -rw-r--r-- | tools/testing/selftests/kvm/lib/riscv/processor.c | 7 |
3 files changed, 7 insertions, 12 deletions
diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h index 81f4355ff28a..747effa614f1 100644 --- a/tools/testing/selftests/kvm/include/kvm_util.h +++ b/tools/testing/selftests/kvm/include/kvm_util.h @@ -1258,6 +1258,11 @@ static inline int __vm_disable_nx_huge_pages(struct kvm_vm *vm) return __vm_enable_cap(vm, KVM_CAP_VM_DISABLE_NX_HUGE_PAGES, 0); } +static inline uint64_t vm_page_align(struct kvm_vm *vm, uint64_t v) +{ + return (v + vm->page_size - 1) & ~(vm->page_size - 1); +} + /* * Arch hook that is invoked via a constructor, i.e. before exeucting main(), * to allow for arch-specific setup that is common to all tests, e.g. computing diff --git a/tools/testing/selftests/kvm/lib/arm64/processor.c b/tools/testing/selftests/kvm/lib/arm64/processor.c index 607a4e462984..1605dc740d1e 100644 --- a/tools/testing/selftests/kvm/lib/arm64/processor.c +++ b/tools/testing/selftests/kvm/lib/arm64/processor.c @@ -21,11 +21,6 @@ static vm_vaddr_t exception_handlers; -static uint64_t page_align(struct kvm_vm *vm, uint64_t v) -{ - return (v + vm->page_size - 1) & ~(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; @@ -115,7 +110,7 @@ static uint64_t __maybe_unused ptrs_per_pte(struct kvm_vm *vm) void virt_arch_pgd_alloc(struct kvm_vm *vm) { - size_t nr_pages = page_align(vm, ptrs_per_pgd(vm) * 8) / vm->page_size; + size_t nr_pages = vm_page_align(vm, ptrs_per_pgd(vm) * 8) / vm->page_size; if (vm->pgd_created) return; diff --git a/tools/testing/selftests/kvm/lib/riscv/processor.c b/tools/testing/selftests/kvm/lib/riscv/processor.c index d5e8747b5e69..401245fe31db 100644 --- a/tools/testing/selftests/kvm/lib/riscv/processor.c +++ b/tools/testing/selftests/kvm/lib/riscv/processor.c @@ -26,11 +26,6 @@ bool __vcpu_has_ext(struct kvm_vcpu *vcpu, uint64_t ext) return !ret && !!value; } -static uint64_t page_align(struct kvm_vm *vm, uint64_t v) -{ - return (v + vm->page_size - 1) & ~(vm->page_size - 1); -} - static uint64_t pte_addr(struct kvm_vm *vm, uint64_t entry) { return ((entry & PGTBL_PTE_ADDR_MASK) >> PGTBL_PTE_ADDR_SHIFT) << @@ -68,7 +63,7 @@ static uint64_t pte_index(struct kvm_vm *vm, vm_vaddr_t gva, int level) void virt_arch_pgd_alloc(struct kvm_vm *vm) { - size_t nr_pages = page_align(vm, ptrs_per_pte(vm) * 8) / vm->page_size; + size_t nr_pages = vm_page_align(vm, ptrs_per_pte(vm) * 8) / vm->page_size; if (vm->pgd_created) return; |