Introduce following APIs: 1) kvm_arch_main : to be called at the startup of each test. 2) kvm_arch_post_vm_load: called after guest elf image is loaded into memory to populate any global state in guest memory.
Suggested-by: Sean Christopherson seanjc@google.com Signed-off-by: Vishal Annapurve vannapurve@google.com --- tools/testing/selftests/kvm/include/kvm_util_base.h | 10 ++++++++++ tools/testing/selftests/kvm/lib/aarch64/processor.c | 8 ++++++++ tools/testing/selftests/kvm/lib/elf.c | 2 ++ tools/testing/selftests/kvm/lib/kvm_util.c | 2 ++ tools/testing/selftests/kvm/lib/riscv/processor.c | 8 ++++++++ tools/testing/selftests/kvm/lib/s390x/processor.c | 8 ++++++++ tools/testing/selftests/kvm/lib/x86_64/processor.c | 8 ++++++++ 7 files changed, 46 insertions(+)
diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h index 9e521d1c8afe..301bef6376a5 100644 --- a/tools/testing/selftests/kvm/include/kvm_util_base.h +++ b/tools/testing/selftests/kvm/include/kvm_util_base.h @@ -834,6 +834,16 @@ 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); }
+/* + * API to execute architecture specific setup before executing selftest logic. + */ +void kvm_arch_main(void); + +/* + * API to execute architecture specific setup after loading VMs. + */ +void kvm_arch_post_vm_load(struct kvm_vm *vm); + /* * API to be implemented by all the selftests. */ diff --git a/tools/testing/selftests/kvm/lib/aarch64/processor.c b/tools/testing/selftests/kvm/lib/aarch64/processor.c index 6f5551368944..a7ca1947d574 100644 --- a/tools/testing/selftests/kvm/lib/aarch64/processor.c +++ b/tools/testing/selftests/kvm/lib/aarch64/processor.c @@ -528,3 +528,11 @@ void smccc_hvc(uint32_t function_id, uint64_t arg0, uint64_t arg1, [arg4] "r"(arg4), [arg5] "r"(arg5), [arg6] "r"(arg6) : "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7"); } + +void kvm_arch_main(void) +{ +} + +void kvm_arch_post_vm_load(struct kvm_vm *vm) +{ +} diff --git a/tools/testing/selftests/kvm/lib/elf.c b/tools/testing/selftests/kvm/lib/elf.c index 9f54c098d9d0..f56f9279e703 100644 --- a/tools/testing/selftests/kvm/lib/elf.c +++ b/tools/testing/selftests/kvm/lib/elf.c @@ -189,4 +189,6 @@ void kvm_vm_elf_load(struct kvm_vm *vm, const char *filename) phdr.p_filesz); } } + + kvm_arch_post_vm_load(vm); } diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c index 2e611a021c6e..b778dc684e30 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util.c +++ b/tools/testing/selftests/kvm/lib/kvm_util.c @@ -1985,6 +1985,8 @@ int main(int argc, char *argv[]) /* Tell stdout not to buffer its content */ setbuf(stdout, NULL);
+ kvm_arch_main(); + __main(argc, argv);
return 0; diff --git a/tools/testing/selftests/kvm/lib/riscv/processor.c b/tools/testing/selftests/kvm/lib/riscv/processor.c index 604478151212..d992ad5b5771 100644 --- a/tools/testing/selftests/kvm/lib/riscv/processor.c +++ b/tools/testing/selftests/kvm/lib/riscv/processor.c @@ -362,3 +362,11 @@ void vcpu_args_set(struct kvm_vcpu *vcpu, unsigned int num, ...) void assert_on_unhandled_exception(struct kvm_vcpu *vcpu) { } + +void kvm_arch_main(void) +{ +} + +void kvm_arch_post_vm_load(struct kvm_vm *vm) +{ +} diff --git a/tools/testing/selftests/kvm/lib/s390x/processor.c b/tools/testing/selftests/kvm/lib/s390x/processor.c index 89d7340d9cbd..3a249783b3fe 100644 --- a/tools/testing/selftests/kvm/lib/s390x/processor.c +++ b/tools/testing/selftests/kvm/lib/s390x/processor.c @@ -218,3 +218,11 @@ void vcpu_arch_dump(FILE *stream, struct kvm_vcpu *vcpu, uint8_t indent) void assert_on_unhandled_exception(struct kvm_vcpu *vcpu) { } + +void kvm_arch_main(void) +{ +} + +void kvm_arch_post_vm_load(struct kvm_vm *vm) +{ +} diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c index 2e6e61bbe81b..e22cfc4bf284 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c @@ -1311,3 +1311,11 @@ bool vm_is_unrestricted_guest(struct kvm_vm *vm)
return val == 'Y'; } + +void kvm_arch_main(void) +{ +} + +void kvm_arch_post_vm_load(struct kvm_vm *vm) +{ +}