From: Ricardo Koller <ricarkol@google.com> To: kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, andrew.jones@linux.dev Cc: pbonzini@redhat.com, maz@kernel.org, seanjc@google.com, alexandru.elisei@arm.com, eric.auger@redhat.com, oupton@google.com, reijiw@google.com, rananta@google.com, bgardon@google.com, dmatlack@google.com, axelrasmussen@google.com, Ricardo Koller <ricarkol@google.com> Subject: [PATCH v6 02/13] KVM: selftests: aarch64: Add virt_get_pte_hva() library function Date: Tue, 6 Sep 2022 18:09:19 +0000 [thread overview] Message-ID: <20220906180930.230218-3-ricarkol@google.com> (raw) In-Reply-To: <20220906180930.230218-1-ricarkol@google.com> Add a library function to get the PTE (a host virtual address) of a given GVA. This will be used in a future commit by a test to clear and check the access flag of a particular page. Reviewed-by: Andrew Jones <andrew.jones@linux.dev> Signed-off-by: Ricardo Koller <ricarkol@google.com> --- .../selftests/kvm/include/aarch64/processor.h | 2 ++ tools/testing/selftests/kvm/lib/aarch64/processor.c | 13 ++++++++++--- 2 files changed, 12 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/kvm/include/aarch64/processor.h b/tools/testing/selftests/kvm/include/aarch64/processor.h index a8124f9dd68a..df4bfac69551 100644 --- a/tools/testing/selftests/kvm/include/aarch64/processor.h +++ b/tools/testing/selftests/kvm/include/aarch64/processor.h @@ -109,6 +109,8 @@ void vm_install_exception_handler(struct kvm_vm *vm, void vm_install_sync_handler(struct kvm_vm *vm, int vector, int ec, handler_fn handler); +uint64_t *virt_get_pte_hva(struct kvm_vm *vm, vm_vaddr_t gva); + static inline void cpu_relax(void) { asm volatile("yield" ::: "memory"); diff --git a/tools/testing/selftests/kvm/lib/aarch64/processor.c b/tools/testing/selftests/kvm/lib/aarch64/processor.c index 6f5551368944..63ef3c78e55e 100644 --- a/tools/testing/selftests/kvm/lib/aarch64/processor.c +++ b/tools/testing/selftests/kvm/lib/aarch64/processor.c @@ -138,7 +138,7 @@ void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr) _virt_pg_map(vm, vaddr, paddr, attr_idx); } -vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva) +uint64_t *virt_get_pte_hva(struct kvm_vm *vm, vm_vaddr_t gva) { uint64_t *ptep; @@ -169,11 +169,18 @@ vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva) TEST_FAIL("Page table levels must be 2, 3, or 4"); } - return pte_addr(vm, *ptep) + (gva & (vm->page_size - 1)); + return ptep; unmapped_gva: TEST_FAIL("No mapping for vm virtual address, gva: 0x%lx", gva); - exit(1); + 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) -- 2.37.2.789.g6183377224-goog
WARNING: multiple messages have this Message-ID (diff)
From: Ricardo Koller <ricarkol@google.com> To: kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, andrew.jones@linux.dev Cc: maz@kernel.org, bgardon@google.com, pbonzini@redhat.com, axelrasmussen@google.com, dmatlack@google.com Subject: [PATCH v6 02/13] KVM: selftests: aarch64: Add virt_get_pte_hva() library function Date: Tue, 6 Sep 2022 18:09:19 +0000 [thread overview] Message-ID: <20220906180930.230218-3-ricarkol@google.com> (raw) In-Reply-To: <20220906180930.230218-1-ricarkol@google.com> Add a library function to get the PTE (a host virtual address) of a given GVA. This will be used in a future commit by a test to clear and check the access flag of a particular page. Reviewed-by: Andrew Jones <andrew.jones@linux.dev> Signed-off-by: Ricardo Koller <ricarkol@google.com> --- .../selftests/kvm/include/aarch64/processor.h | 2 ++ tools/testing/selftests/kvm/lib/aarch64/processor.c | 13 ++++++++++--- 2 files changed, 12 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/kvm/include/aarch64/processor.h b/tools/testing/selftests/kvm/include/aarch64/processor.h index a8124f9dd68a..df4bfac69551 100644 --- a/tools/testing/selftests/kvm/include/aarch64/processor.h +++ b/tools/testing/selftests/kvm/include/aarch64/processor.h @@ -109,6 +109,8 @@ void vm_install_exception_handler(struct kvm_vm *vm, void vm_install_sync_handler(struct kvm_vm *vm, int vector, int ec, handler_fn handler); +uint64_t *virt_get_pte_hva(struct kvm_vm *vm, vm_vaddr_t gva); + static inline void cpu_relax(void) { asm volatile("yield" ::: "memory"); diff --git a/tools/testing/selftests/kvm/lib/aarch64/processor.c b/tools/testing/selftests/kvm/lib/aarch64/processor.c index 6f5551368944..63ef3c78e55e 100644 --- a/tools/testing/selftests/kvm/lib/aarch64/processor.c +++ b/tools/testing/selftests/kvm/lib/aarch64/processor.c @@ -138,7 +138,7 @@ void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr) _virt_pg_map(vm, vaddr, paddr, attr_idx); } -vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva) +uint64_t *virt_get_pte_hva(struct kvm_vm *vm, vm_vaddr_t gva) { uint64_t *ptep; @@ -169,11 +169,18 @@ vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva) TEST_FAIL("Page table levels must be 2, 3, or 4"); } - return pte_addr(vm, *ptep) + (gva & (vm->page_size - 1)); + return ptep; unmapped_gva: TEST_FAIL("No mapping for vm virtual address, gva: 0x%lx", gva); - exit(1); + 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) -- 2.37.2.789.g6183377224-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
next prev parent reply other threads:[~2022-09-06 18:09 UTC|newest] Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-09-06 18:09 [PATCH v6 00/13] KVM: selftests: Add aarch64/page_fault_test Ricardo Koller 2022-09-06 18:09 ` Ricardo Koller 2022-09-06 18:09 ` [PATCH v6 01/13] KVM: selftests: Add a userfaultfd library Ricardo Koller 2022-09-06 18:09 ` Ricardo Koller 2022-09-17 22:14 ` Oliver Upton 2022-09-17 22:14 ` Oliver Upton 2022-09-06 18:09 ` Ricardo Koller [this message] 2022-09-06 18:09 ` [PATCH v6 02/13] KVM: selftests: aarch64: Add virt_get_pte_hva() library function Ricardo Koller 2022-09-17 22:15 ` Oliver Upton 2022-09-17 22:15 ` Oliver Upton 2022-09-06 18:09 ` [PATCH v6 03/13] KVM: selftests: Add missing close and munmap in __vm_mem_region_delete() Ricardo Koller 2022-09-06 18:09 ` Ricardo Koller 2022-09-06 18:09 ` [PATCH v6 04/13] KVM: selftests: aarch64: Construct DEFAULT_MAIR_EL1 using sysreg.h macros Ricardo Koller 2022-09-06 18:09 ` Ricardo Koller 2022-09-06 18:09 ` [PATCH v6 05/13] tools: Copy bitfield.h from the kernel sources Ricardo Koller 2022-09-06 18:09 ` Ricardo Koller 2022-09-06 18:09 ` [PATCH v6 06/13] KVM: selftests: Stash backing_src_type in struct userspace_mem_region Ricardo Koller 2022-09-06 18:09 ` Ricardo Koller 2022-09-17 22:17 ` Oliver Upton 2022-09-17 22:17 ` Oliver Upton 2022-09-06 18:09 ` [PATCH v6 07/13] KVM: selftests: Change ____vm_create() to take struct kvm_vm_mem_params Ricardo Koller 2022-09-06 18:09 ` Ricardo Koller 2022-09-19 6:42 ` Andrew Jones 2022-09-19 6:42 ` Andrew Jones 2022-09-19 16:28 ` Sean Christopherson 2022-09-19 16:28 ` Sean Christopherson 2022-09-19 19:21 ` Ricardo Koller 2022-09-19 19:21 ` Ricardo Koller 2022-09-06 18:09 ` [PATCH v6 08/13] KVM: selftests: Use the right memslot for code, page-tables, and data allocations Ricardo Koller 2022-09-06 18:09 ` Ricardo Koller 2022-09-19 6:42 ` Andrew Jones 2022-09-19 6:42 ` Andrew Jones 2022-09-06 18:09 ` [PATCH v6 09/13] KVM: selftests: aarch64: Add aarch64/page_fault_test Ricardo Koller 2022-09-06 18:09 ` Ricardo Koller 2022-09-17 21:58 ` Oliver Upton 2022-09-17 21:58 ` Oliver Upton 2022-09-19 19:29 ` Ricardo Koller 2022-09-19 19:29 ` Ricardo Koller 2022-09-19 20:01 ` Sean Christopherson 2022-09-19 20:01 ` Sean Christopherson 2022-09-06 18:09 ` [PATCH v6 10/13] KVM: selftests: aarch64: Add userfaultfd tests into page_fault_test Ricardo Koller 2022-09-06 18:09 ` Ricardo Koller 2022-09-06 18:09 ` [PATCH v6 11/13] KVM: selftests: aarch64: Add dirty logging " Ricardo Koller 2022-09-06 18:09 ` Ricardo Koller 2022-09-06 18:09 ` [PATCH v6 12/13] KVM: selftests: aarch64: Add readonly memslot " Ricardo Koller 2022-09-06 18:09 ` Ricardo Koller 2022-09-06 18:09 ` [PATCH v6 13/13] KVM: selftests: aarch64: Add mix of " Ricardo Koller 2022-09-06 18:09 ` Ricardo Koller 2022-09-19 10:38 ` [PATCH v6 00/13] KVM: selftests: Add aarch64/page_fault_test Marc Zyngier 2022-09-19 10:38 ` Marc Zyngier 2022-09-19 16:38 ` Sean Christopherson 2022-09-19 16:38 ` Sean Christopherson 2022-09-19 16:57 ` Marc Zyngier 2022-09-19 16:57 ` Marc Zyngier 2022-09-19 18:28 ` Ricardo Koller 2022-09-19 18:28 ` Ricardo Koller 2022-09-20 4:14 Ricardo Koller 2022-09-20 4:14 ` [PATCH v6 02/13] KVM: selftests: aarch64: Add virt_get_pte_hva() library function Ricardo Koller 2022-09-20 4:14 ` Ricardo Koller
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20220906180930.230218-3-ricarkol@google.com \ --to=ricarkol@google.com \ --cc=alexandru.elisei@arm.com \ --cc=andrew.jones@linux.dev \ --cc=axelrasmussen@google.com \ --cc=bgardon@google.com \ --cc=dmatlack@google.com \ --cc=eric.auger@redhat.com \ --cc=kvm@vger.kernel.org \ --cc=kvmarm@lists.cs.columbia.edu \ --cc=maz@kernel.org \ --cc=oupton@google.com \ --cc=pbonzini@redhat.com \ --cc=rananta@google.com \ --cc=reijiw@google.com \ --cc=seanjc@google.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.