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Message-Id: <20220310164532.1821490-6-bgardon@google.com>
Date: Thu, 10 Mar 2022 08:45:24 -0800
From: Ben Gardon <bgardon@...gle.com>
To: linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Cc: Paolo Bonzini <pbonzini@...hat.com>, Peter Xu <peterx@...hat.com>,
Sean Christopherson <seanjc@...gle.com>,
David Matlack <dmatlack@...gle.com>,
Jim Mattson <jmattson@...gle.com>,
David Dunn <daviddunn@...gle.com>,
Jing Zhang <jingzhangos@...gle.com>,
Junaid Shahid <junaids@...gle.com>,
Ben Gardon <bgardon@...gle.com>
Subject: [PATCH 05/13] selftests: KVM: Add memslot parameter to elf_load
Currently elf_load loads code into memslot 0. Add a parameter to allow
loading code into any memslot. This will be useful for backing code
pages with huge pages in future commits.
No functional change intended.
Signed-off-by: Ben Gardon <bgardon@...gle.com>
---
tools/testing/selftests/kvm/aarch64/psci_cpu_on_test.c | 2 +-
tools/testing/selftests/kvm/dirty_log_test.c | 2 +-
tools/testing/selftests/kvm/hardware_disable_test.c | 2 +-
tools/testing/selftests/kvm/include/kvm_util_base.h | 3 ++-
tools/testing/selftests/kvm/lib/elf.c | 4 ++--
tools/testing/selftests/kvm/lib/kvm_util.c | 2 +-
tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c | 2 +-
7 files changed, 9 insertions(+), 8 deletions(-)
diff --git a/tools/testing/selftests/kvm/aarch64/psci_cpu_on_test.c b/tools/testing/selftests/kvm/aarch64/psci_cpu_on_test.c
index 4c5f6814030f..c3d5227a740e 100644
--- a/tools/testing/selftests/kvm/aarch64/psci_cpu_on_test.c
+++ b/tools/testing/selftests/kvm/aarch64/psci_cpu_on_test.c
@@ -77,7 +77,7 @@ int main(void)
struct ucall uc;
vm = vm_create(VM_MODE_DEFAULT, DEFAULT_GUEST_PHY_PAGES, O_RDWR);
- kvm_vm_elf_load(vm, program_invocation_name);
+ kvm_vm_elf_load(vm, program_invocation_name, MEMSLOT(0));
ucall_init(vm, NULL);
vm_ioctl(vm, KVM_ARM_PREFERRED_TARGET, &init);
diff --git a/tools/testing/selftests/kvm/dirty_log_test.c b/tools/testing/selftests/kvm/dirty_log_test.c
index 1241c9a2729c..fe1054897ee2 100644
--- a/tools/testing/selftests/kvm/dirty_log_test.c
+++ b/tools/testing/selftests/kvm/dirty_log_test.c
@@ -686,7 +686,7 @@ static struct kvm_vm *create_vm(enum vm_guest_mode mode, uint32_t vcpuid,
pr_info("Testing guest mode: %s\n", vm_guest_mode_string(mode));
vm = vm_create(mode, DEFAULT_GUEST_PHY_PAGES + extra_pg_pages, O_RDWR);
- kvm_vm_elf_load(vm, program_invocation_name);
+ kvm_vm_elf_load(vm, program_invocation_name, MEMSLOT(0));
#ifdef __x86_64__
vm_create_irqchip(vm);
#endif
diff --git a/tools/testing/selftests/kvm/hardware_disable_test.c b/tools/testing/selftests/kvm/hardware_disable_test.c
index b21c69a56daa..4f699781e065 100644
--- a/tools/testing/selftests/kvm/hardware_disable_test.c
+++ b/tools/testing/selftests/kvm/hardware_disable_test.c
@@ -105,7 +105,7 @@ static void run_test(uint32_t run)
CPU_SET(i, &cpu_set);
vm = vm_create(VM_MODE_DEFAULT, DEFAULT_GUEST_PHY_PAGES, O_RDWR);
- kvm_vm_elf_load(vm, program_invocation_name);
+ kvm_vm_elf_load(vm, program_invocation_name, MEMSLOT(0));
vm_create_irqchip(vm);
pr_debug("%s: [%d] start vcpus\n", __func__, run);
diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h
index f70dfa3e1202..530b5272fae2 100644
--- a/tools/testing/selftests/kvm/include/kvm_util_base.h
+++ b/tools/testing/selftests/kvm/include/kvm_util_base.h
@@ -131,7 +131,8 @@ uint32_t kvm_vm_reset_dirty_ring(struct kvm_vm *vm);
int kvm_memcmp_hva_gva(void *hva, struct kvm_vm *vm, const vm_vaddr_t gva,
size_t len);
-void kvm_vm_elf_load(struct kvm_vm *vm, const char *filename);
+void kvm_vm_elf_load(struct kvm_vm *vm, const char *filename,
+ struct kvm_memslot memslot);
int kvm_memfd_alloc(size_t size, bool hugepages);
void vm_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent);
diff --git a/tools/testing/selftests/kvm/lib/elf.c b/tools/testing/selftests/kvm/lib/elf.c
index 88d03cb80423..763f489492f1 100644
--- a/tools/testing/selftests/kvm/lib/elf.c
+++ b/tools/testing/selftests/kvm/lib/elf.c
@@ -111,7 +111,7 @@ static void elfhdr_get(const char *filename, Elf64_Ehdr *hdrp)
* by the image and it needs to have sufficient available physical pages, to
* back the virtual pages used to load the image.
*/
-void kvm_vm_elf_load(struct kvm_vm *vm, const char *filename)
+void kvm_vm_elf_load(struct kvm_vm *vm, const char *filename, struct kvm_memslot memslot)
{
off_t offset, offset_rv;
Elf64_Ehdr hdr;
@@ -163,7 +163,7 @@ void kvm_vm_elf_load(struct kvm_vm *vm, const char *filename)
size_t seg_size = seg_vend - seg_vstart + 1;
vm_vaddr_t vaddr = vm_vaddr_alloc(vm, seg_size, seg_vstart,
- MEMSLOT(0));
+ memslot);
TEST_ASSERT(vaddr == seg_vstart, "Unable to allocate "
"virtual memory for segment at requested min addr,\n"
" segment idx: %u\n"
diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
index 04abfc7e6b5c..a10bee651191 100644
--- a/tools/testing/selftests/kvm/lib/kvm_util.c
+++ b/tools/testing/selftests/kvm/lib/kvm_util.c
@@ -368,7 +368,7 @@ struct kvm_vm *vm_create_without_vcpus(enum vm_guest_mode mode, uint64_t pages)
vm = vm_create(mode, pages, O_RDWR);
- kvm_vm_elf_load(vm, program_invocation_name);
+ kvm_vm_elf_load(vm, program_invocation_name, MEMSLOT(0));
#ifdef __x86_64__
vm_create_irqchip(vm);
diff --git a/tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c b/tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c
index ae76436af0cc..3a7783046895 100644
--- a/tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c
+++ b/tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c
@@ -90,7 +90,7 @@ static struct kvm_vm *create_vm(void)
pages = vm_adjust_num_guest_pages(VM_MODE_DEFAULT, pages);
vm = vm_create(VM_MODE_DEFAULT, pages, O_RDWR);
- kvm_vm_elf_load(vm, program_invocation_name);
+ kvm_vm_elf_load(vm, program_invocation_name, MEMSLOT(0));
vm_create_irqchip(vm);
return vm;
--
2.35.1.616.g0bdcbb4464-goog
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