From: Nicholas Piggin <npiggin@gmail.com>
To: kvm@vger.kernel.org, Paolo Bonzini <pbonzini@redhat.com>
Cc: linuxppc-dev@lists.ozlabs.org,
Sean Christopherson <seanjc@google.com>,
"Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>,
Joel Stanley <joel@jms.id.au>,
Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH v4 1/4] KVM: selftests: Move pgd_created check into virt_pgd_alloc
Date: Mon, 20 Nov 2023 22:29:17 +1000 [thread overview]
Message-ID: <20231120122920.293076-2-npiggin@gmail.com> (raw)
In-Reply-To: <20231120122920.293076-1-npiggin@gmail.com>
virt_arch_pgd_alloc all do the same test and set of pgd_created. Move
this into common code.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
tools/testing/selftests/kvm/include/kvm_util_base.h | 5 +++++
tools/testing/selftests/kvm/lib/aarch64/processor.c | 4 ----
tools/testing/selftests/kvm/lib/riscv/processor.c | 4 ----
tools/testing/selftests/kvm/lib/s390x/processor.c | 4 ----
tools/testing/selftests/kvm/lib/x86_64/processor.c | 7 ++-----
5 files changed, 7 insertions(+), 17 deletions(-)
diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h
index a18db6a7b3cf..e592a75ec052 100644
--- a/tools/testing/selftests/kvm/include/kvm_util_base.h
+++ b/tools/testing/selftests/kvm/include/kvm_util_base.h
@@ -846,7 +846,12 @@ void virt_arch_pgd_alloc(struct kvm_vm *vm);
static inline void virt_pgd_alloc(struct kvm_vm *vm)
{
+ if (vm->pgd_created)
+ return;
+
virt_arch_pgd_alloc(vm);
+
+ vm->pgd_created = true;
}
/*
diff --git a/tools/testing/selftests/kvm/lib/aarch64/processor.c b/tools/testing/selftests/kvm/lib/aarch64/processor.c
index 6fe12e985ba5..69743d4c6748 100644
--- a/tools/testing/selftests/kvm/lib/aarch64/processor.c
+++ b/tools/testing/selftests/kvm/lib/aarch64/processor.c
@@ -96,13 +96,9 @@ 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,
diff --git a/tools/testing/selftests/kvm/lib/riscv/processor.c b/tools/testing/selftests/kvm/lib/riscv/processor.c
index d146ca71e0c0..7695ba2cd369 100644
--- a/tools/testing/selftests/kvm/lib/riscv/processor.c
+++ b/tools/testing/selftests/kvm/lib/riscv/processor.c
@@ -57,13 +57,9 @@ void virt_arch_pgd_alloc(struct kvm_vm *vm)
{
size_t nr_pages = page_align(vm, ptrs_per_pte(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;
}
void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)
diff --git a/tools/testing/selftests/kvm/lib/s390x/processor.c b/tools/testing/selftests/kvm/lib/s390x/processor.c
index 15945121daf1..358e03f09c7a 100644
--- a/tools/testing/selftests/kvm/lib/s390x/processor.c
+++ b/tools/testing/selftests/kvm/lib/s390x/processor.c
@@ -17,16 +17,12 @@ void virt_arch_pgd_alloc(struct kvm_vm *vm)
TEST_ASSERT(vm->page_size == 4096, "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;
}
/*
diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c
index d8288374078e..2ec64bb45db2 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/processor.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c
@@ -127,11 +127,8 @@ void virt_arch_pgd_alloc(struct kvm_vm *vm)
TEST_ASSERT(vm->mode == VM_MODE_PXXV48_4K, "Attempt to use "
"unknown or unsupported guest mode, mode: 0x%x", vm->mode);
- /* If needed, create page map l4 table. */
- if (!vm->pgd_created) {
- vm->pgd = vm_alloc_page_table(vm);
- vm->pgd_created = true;
- }
+ /* Create page map l4 table. */
+ vm->pgd = vm_alloc_page_table(vm);
}
static void *virt_get_pte(struct kvm_vm *vm, uint64_t *parent_pte,
--
2.42.0
next prev parent reply other threads:[~2023-11-20 12:29 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-20 12:29 [PATCH v4 0/4] KVM: selftests: add powerpc support Nicholas Piggin
2023-11-20 12:29 ` Nicholas Piggin [this message]
2023-11-20 12:29 ` [PATCH v4 2/4] KVM: selftests: Add aligned guest physical page allocator Nicholas Piggin
2023-11-20 12:29 ` [PATCH v4 3/4] KVM: PPC: selftests: add support for powerpc Nicholas Piggin
2023-11-20 12:29 ` [PATCH v4 4/4] KVM: PPC: selftests: powerpc enable kvm_create_max_vcpus test Nicholas Piggin
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