[PATCH v4 14/16] KVM: selftests: Provide empty 'all' and 'clean' targets for unsupported ARCHs

Sean Christopherson
2024-11-28T01:10:01Z

Provide empty targets for KVM selftests if the target architecture is
unsupported to make it obvious which architectures are supported, and so
that various side effects don't fail and/or do weird things, e.g. as is,
"mkdir -p $(sort $(dir $(TEST_GEN_PROGS)))" fails due to a missing operand,
and conversely, "$(shell mkdir -p $(sort $(OUTPUT)/$(ARCH_DIR) ..." will
create an empty, useless directory for the unsupported architecture.

Move the guts of the Makefile to Makefile.kvm so that it's easier to see
that the if-statement effectively guards all of KVM selftests.

Reported-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
tools/testing/selftests/kvm/.gitignore | 1 +
tools/testing/selftests/kvm/Makefile | 336 +----------------------
tools/testing/selftests/kvm/Makefile.kvm | 334 ++++++++++++++++++++++
3 files changed, 340 insertions(+), 331 deletions(-)
create mode 100644 tools/testing/selftests/kvm/Makefile.kvm

diff --git a/tools/testing/selftests/kvm/.gitignore b/tools/testing/selftests/kvm/.gitignore
index 7f57abf936e7..1d41a046a7bf 100644
--- a/tools/testing/selftests/kvm/.gitignore
+++ b/tools/testing/selftests/kvm/.gitignore
@@ -9,3 +9,4 @@
!config
!settings
!Makefile
+!Makefile.kvm
\ No newline at end of file
diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
index c59a337cd4da..7b33464bf8cc 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -1,12 +1,9 @@
# SPDX-License-Identifier: GPL-2.0-only
-include ../../../build/Build.include
-
-all:
-
top_srcdir = ../../../..
include $(top_srcdir)/scripts/subarch.include
ARCH ?= $(SUBARCH)

+ifeq ($(ARCH),$(filter $(ARCH),arm64 s390 riscv x86 x86_64))
ifeq ($(ARCH),x86)
ARCH_DIR := x86_64
else ifeq ($(ARCH),arm64)
@@ -17,332 +14,9 @@ else
ARCH_DIR := $(ARCH)
endif

-LIBKVM += lib/assert.c
-LIBKVM += lib/elf.c
-LIBKVM += lib/guest_modes.c
-LIBKVM += lib/io.c
-LIBKVM += lib/kvm_util.c
-LIBKVM += lib/memstress.c
-LIBKVM += lib/guest_sprintf.c
-LIBKVM += lib/rbtree.c
-LIBKVM += lib/sparsebit.c
-LIBKVM += lib/test_util.c
-LIBKVM += lib/ucall_common.c
-LIBKVM += lib/userfaultfd_util.c
-
-LIBKVM_STRING += lib/string_override.c
-
-LIBKVM_x86_64 += lib/x86_64/apic.c
-LIBKVM_x86_64 += lib/x86_64/handlers.S
-LIBKVM_x86_64 += lib/x86_64/hyperv.c
-LIBKVM_x86_64 += lib/x86_64/memstress.c
-LIBKVM_x86_64 += lib/x86_64/pmu.c
-LIBKVM_x86_64 += lib/x86_64/processor.c
-LIBKVM_x86_64 += lib/x86_64/sev.c
-LIBKVM_x86_64 += lib/x86_64/svm.c
-LIBKVM_x86_64 += lib/x86_64/ucall.c
-LIBKVM_x86_64 += lib/x86_64/vmx.c
-
-LIBKVM_aarch64 += lib/aarch64/gic.c
-LIBKVM_aarch64 += lib/aarch64/gic_v3.c
-LIBKVM_aarch64 += lib/aarch64/gic_v3_its.c
-LIBKVM_aarch64 += lib/aarch64/handlers.S
-LIBKVM_aarch64 += lib/aarch64/processor.c
-LIBKVM_aarch64 += lib/aarch64/spinlock.c
-LIBKVM_aarch64 += lib/aarch64/ucall.c
-LIBKVM_aarch64 += lib/aarch64/vgic.c
-
-LIBKVM_s390x += lib/s390x/diag318_test_handler.c
-LIBKVM_s390x += lib/s390x/processor.c
-LIBKVM_s390x += lib/s390x/ucall.c
-LIBKVM_s390x += lib/s390x/facility.c
-
-LIBKVM_riscv += lib/riscv/handlers.S
-LIBKVM_riscv += lib/riscv/processor.c
-LIBKVM_riscv += lib/riscv/ucall.c
-
-# Non-compiled test targets
-TEST_PROGS_x86_64 += x86_64/nx_huge_pages_test.sh
-
-# Compiled test targets
-TEST_GEN_PROGS_x86_64 = x86_64/cpuid_test
-TEST_GEN_PROGS_x86_64 += x86_64/cr4_cpuid_sync_test
-TEST_GEN_PROGS_x86_64 += x86_64/dirty_log_page_splitting_test
-TEST_GEN_PROGS_x86_64 += x86_64/feature_msrs_test
-TEST_GEN_PROGS_x86_64 += x86_64/exit_on_emulation_failure_test
-TEST_GEN_PROGS_x86_64 += x86_64/fix_hypercall_test
-TEST_GEN_PROGS_x86_64 += x86_64/hwcr_msr_test
-TEST_GEN_PROGS_x86_64 += x86_64/hyperv_clock
-TEST_GEN_PROGS_x86_64 += x86_64/hyperv_cpuid
-TEST_GEN_PROGS_x86_64 += x86_64/hyperv_evmcs
-TEST_GEN_PROGS_x86_64 += x86_64/hyperv_extended_hypercalls
-TEST_GEN_PROGS_x86_64 += x86_64/hyperv_features
-TEST_GEN_PROGS_x86_64 += x86_64/hyperv_ipi
-TEST_GEN_PROGS_x86_64 += x86_64/hyperv_svm_test
-TEST_GEN_PROGS_x86_64 += x86_64/hyperv_tlb_flush
-TEST_GEN_PROGS_x86_64 += x86_64/kvm_clock_test
-TEST_GEN_PROGS_x86_64 += x86_64/kvm_pv_test
-TEST_GEN_PROGS_x86_64 += x86_64/monitor_mwait_test
-TEST_GEN_PROGS_x86_64 += x86_64/nested_exceptions_test
-TEST_GEN_PROGS_x86_64 += x86_64/platform_info_test
-TEST_GEN_PROGS_x86_64 += x86_64/pmu_counters_test
-TEST_GEN_PROGS_x86_64 += x86_64/pmu_event_filter_test
-TEST_GEN_PROGS_x86_64 += x86_64/private_mem_conversions_test
-TEST_GEN_PROGS_x86_64 += x86_64/private_mem_kvm_exits_test
-TEST_GEN_PROGS_x86_64 += x86_64/set_boot_cpu_id
-TEST_GEN_PROGS_x86_64 += x86_64/set_sregs_test
-TEST_GEN_PROGS_x86_64 += x86_64/smaller_maxphyaddr_emulation_test
-TEST_GEN_PROGS_x86_64 += x86_64/smm_test
-TEST_GEN_PROGS_x86_64 += x86_64/state_test
-TEST_GEN_PROGS_x86_64 += x86_64/vmx_preemption_timer_test
-TEST_GEN_PROGS_x86_64 += x86_64/svm_vmcall_test
-TEST_GEN_PROGS_x86_64 += x86_64/svm_int_ctl_test
-TEST_GEN_PROGS_x86_64 += x86_64/svm_nested_shutdown_test
-TEST_GEN_PROGS_x86_64 += x86_64/svm_nested_soft_inject_test
-TEST_GEN_PROGS_x86_64 += x86_64/tsc_scaling_sync
-TEST_GEN_PROGS_x86_64 += x86_64/sync_regs_test
-TEST_GEN_PROGS_x86_64 += x86_64/ucna_injection_test
-TEST_GEN_PROGS_x86_64 += x86_64/userspace_io_test
-TEST_GEN_PROGS_x86_64 += x86_64/userspace_msr_exit_test
-TEST_GEN_PROGS_x86_64 += x86_64/vmx_apic_access_test
-TEST_GEN_PROGS_x86_64 += x86_64/vmx_close_while_nested_test
-TEST_GEN_PROGS_x86_64 += x86_64/vmx_dirty_log_test
-TEST_GEN_PROGS_x86_64 += x86_64/vmx_exception_with_invalid_guest_state
-TEST_GEN_PROGS_x86_64 += x86_64/vmx_msrs_test
-TEST_GEN_PROGS_x86_64 += x86_64/vmx_invalid_nested_guest_state
-TEST_GEN_PROGS_x86_64 += x86_64/vmx_set_nested_state_test
-TEST_GEN_PROGS_x86_64 += x86_64/vmx_tsc_adjust_test
-TEST_GEN_PROGS_x86_64 += x86_64/vmx_nested_tsc_scaling_test
-TEST_GEN_PROGS_x86_64 += x86_64/apic_bus_clock_test
-TEST_GEN_PROGS_x86_64 += x86_64/xapic_ipi_test
-TEST_GEN_PROGS_x86_64 += x86_64/xapic_state_test
-TEST_GEN_PROGS_x86_64 += x86_64/xcr0_cpuid_test
-TEST_GEN_PROGS_x86_64 += x86_64/xss_msr_test
-TEST_GEN_PROGS_x86_64 += x86_64/debug_regs
-TEST_GEN_PROGS_x86_64 += x86_64/tsc_msrs_test
-TEST_GEN_PROGS_x86_64 += x86_64/vmx_pmu_caps_test
-TEST_GEN_PROGS_x86_64 += x86_64/xen_shinfo_test
-TEST_GEN_PROGS_x86_64 += x86_64/xen_vmcall_test
-TEST_GEN_PROGS_x86_64 += x86_64/sev_init2_tests
-TEST_GEN_PROGS_x86_64 += x86_64/sev_migrate_tests
-TEST_GEN_PROGS_x86_64 += x86_64/sev_smoke_test
-TEST_GEN_PROGS_x86_64 += x86_64/amx_test
-TEST_GEN_PROGS_x86_64 += x86_64/max_vcpuid_cap_test
-TEST_GEN_PROGS_x86_64 += x86_64/triple_fault_event_test
-TEST_GEN_PROGS_x86_64 += x86_64/recalc_apic_map_test
-TEST_GEN_PROGS_x86_64 += access_tracking_perf_test
-TEST_GEN_PROGS_x86_64 += coalesced_io_test
-TEST_GEN_PROGS_x86_64 += demand_paging_test
-TEST_GEN_PROGS_x86_64 += dirty_log_test
-TEST_GEN_PROGS_x86_64 += dirty_log_perf_test
-TEST_GEN_PROGS_x86_64 += guest_memfd_test
-TEST_GEN_PROGS_x86_64 += guest_print_test
-TEST_GEN_PROGS_x86_64 += hardware_disable_test
-TEST_GEN_PROGS_x86_64 += kvm_create_max_vcpus
-TEST_GEN_PROGS_x86_64 += kvm_page_table_test
-TEST_GEN_PROGS_x86_64 += mmu_stress_test
-TEST_GEN_PROGS_x86_64 += memslot_modification_stress_test
-TEST_GEN_PROGS_x86_64 += memslot_perf_test
-TEST_GEN_PROGS_x86_64 += rseq_test
-TEST_GEN_PROGS_x86_64 += set_memory_region_test
-TEST_GEN_PROGS_x86_64 += steal_time
-TEST_GEN_PROGS_x86_64 += kvm_binary_stats_test
-TEST_GEN_PROGS_x86_64 += system_counter_offset_test
-TEST_GEN_PROGS_x86_64 += pre_fault_memory_test
-
-# Compiled outputs used by test targets
-TEST_GEN_PROGS_EXTENDED_x86_64 += x86_64/nx_huge_pages_test
-
-TEST_GEN_PROGS_aarch64 += aarch64/aarch32_id_regs
-TEST_GEN_PROGS_aarch64 += aarch64/arch_timer_edge_cases
-TEST_GEN_PROGS_aarch64 += aarch64/debug-exceptions
-TEST_GEN_PROGS_aarch64 += aarch64/hypercalls
-TEST_GEN_PROGS_aarch64 += aarch64/mmio_abort
-TEST_GEN_PROGS_aarch64 += aarch64/page_fault_test
-TEST_GEN_PROGS_aarch64 += aarch64/psci_test
-TEST_GEN_PROGS_aarch64 += aarch64/set_id_regs
-TEST_GEN_PROGS_aarch64 += aarch64/smccc_filter
-TEST_GEN_PROGS_aarch64 += aarch64/vcpu_width_config
-TEST_GEN_PROGS_aarch64 += aarch64/vgic_init
-TEST_GEN_PROGS_aarch64 += aarch64/vgic_irq
-TEST_GEN_PROGS_aarch64 += aarch64/vgic_lpi_stress
-TEST_GEN_PROGS_aarch64 += aarch64/vpmu_counter_access
-TEST_GEN_PROGS_aarch64 += aarch64/no-vgic-v3
-TEST_GEN_PROGS_aarch64 += access_tracking_perf_test
-TEST_GEN_PROGS_aarch64 += arch_timer
-TEST_GEN_PROGS_aarch64 += coalesced_io_test
-TEST_GEN_PROGS_aarch64 += demand_paging_test
-TEST_GEN_PROGS_aarch64 += dirty_log_test
-TEST_GEN_PROGS_aarch64 += dirty_log_perf_test
-TEST_GEN_PROGS_aarch64 += guest_print_test
-TEST_GEN_PROGS_aarch64 += get-reg-list
-TEST_GEN_PROGS_aarch64 += kvm_create_max_vcpus
-TEST_GEN_PROGS_aarch64 += kvm_page_table_test
-TEST_GEN_PROGS_aarch64 += memslot_modification_stress_test
-TEST_GEN_PROGS_aarch64 += memslot_perf_test
-TEST_GEN_PROGS_aarch64 += mmu_stress_test
-TEST_GEN_PROGS_aarch64 += rseq_test
-TEST_GEN_PROGS_aarch64 += set_memory_region_test
-TEST_GEN_PROGS_aarch64 += steal_time
-TEST_GEN_PROGS_aarch64 += kvm_binary_stats_test
-
-TEST_GEN_PROGS_s390x = s390x/memop
-TEST_GEN_PROGS_s390x += s390x/resets
-TEST_GEN_PROGS_s390x += s390x/sync_regs_test
-TEST_GEN_PROGS_s390x += s390x/tprot
-TEST_GEN_PROGS_s390x += s390x/cmma_test
-TEST_GEN_PROGS_s390x += s390x/debug_test
-TEST_GEN_PROGS_s390x += s390x/cpumodel_subfuncs_test
-TEST_GEN_PROGS_s390x += s390x/shared_zeropage_test
-TEST_GEN_PROGS_s390x += s390x/ucontrol_test
-TEST_GEN_PROGS_s390x += demand_paging_test
-TEST_GEN_PROGS_s390x += dirty_log_test
-TEST_GEN_PROGS_s390x += guest_print_test
-TEST_GEN_PROGS_s390x += kvm_create_max_vcpus
-TEST_GEN_PROGS_s390x += kvm_page_table_test
-TEST_GEN_PROGS_s390x += rseq_test
-TEST_GEN_PROGS_s390x += set_memory_region_test
-TEST_GEN_PROGS_s390x += kvm_binary_stats_test
-
-TEST_GEN_PROGS_riscv += riscv/sbi_pmu_test
-TEST_GEN_PROGS_riscv += riscv/ebreak_test
-TEST_GEN_PROGS_riscv += arch_timer
-TEST_GEN_PROGS_riscv += coalesced_io_test
-TEST_GEN_PROGS_riscv += demand_paging_test
-TEST_GEN_PROGS_riscv += dirty_log_test
-TEST_GEN_PROGS_riscv += get-reg-list
-TEST_GEN_PROGS_riscv += guest_print_test
-TEST_GEN_PROGS_riscv += kvm_binary_stats_test
-TEST_GEN_PROGS_riscv += kvm_create_max_vcpus
-TEST_GEN_PROGS_riscv += kvm_page_table_test
-TEST_GEN_PROGS_riscv += set_memory_region_test
-TEST_GEN_PROGS_riscv += steal_time
-
-SPLIT_TESTS += arch_timer
-SPLIT_TESTS += get-reg-list
-
-TEST_PROGS += $(TEST_PROGS_$(ARCH_DIR))
-TEST_GEN_PROGS += $(TEST_GEN_PROGS_$(ARCH_DIR))
-TEST_GEN_PROGS_EXTENDED += $(TEST_GEN_PROGS_EXTENDED_$(ARCH_DIR))
-LIBKVM += $(LIBKVM_$(ARCH_DIR))
-
-OVERRIDE_TARGETS = 1
-
-# lib.mak defines $(OUTPUT), prepends $(OUTPUT)/ to $(TEST_GEN_PROGS), and most
-# importantly defines, i.e. overwrites, $(CC) (unless `make -e` or `make CC=`,
-# which causes the environment variable to override the makefile).
-include ../lib.mk
-
-INSTALL_HDR_PATH = $(top_srcdir)/usr
-LINUX_HDR_PATH = $(INSTALL_HDR_PATH)/include/
-LINUX_TOOL_INCLUDE = $(top_srcdir)/tools/include
-ifeq ($(ARCH),x86_64)
-LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/x86/include
+include Makefile.kvm
else
-LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/$(ARCH)/include
+# Empty targets for unsupported architectures
+all:
+clean:
endif
-CFLAGS += -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 \
- -Wno-gnu-variable-sized-type-not-at-end -MD -MP -DCONFIG_64BIT \
- -fno-builtin-memcmp -fno-builtin-memcpy \
- -fno-builtin-memset -fno-builtin-strnlen \
- -fno-stack-protector -fno-PIE -fno-strict-aliasing \
- -I$(LINUX_TOOL_INCLUDE) -I$(LINUX_TOOL_ARCH_INCLUDE) \
- -I$(LINUX_HDR_PATH) -Iinclude -I$(<D) -Iinclude/$(ARCH_DIR) \
- -I ../rseq -I.. $(EXTRA_CFLAGS) $(KHDR_INCLUDES)
-ifeq ($(ARCH),s390)
- CFLAGS += -march=z10
-endif
-ifeq ($(ARCH),x86)
-ifeq ($(shell echo "void foo(void) { }" | $(CC) -march=x86-64-v2 -x c - -c -o /dev/null 2>/dev/null; echo "$$?"),0)
- CFLAGS += -march=x86-64-v2
-endif
-endif
-ifeq ($(ARCH),arm64)
-tools_dir := $(top_srcdir)/tools
-arm64_tools_dir := $(tools_dir)/arch/arm64/tools/
-
-ifneq ($(abs_objdir),)
-arm64_hdr_outdir := $(abs_objdir)/tools/
-else
-arm64_hdr_outdir := $(tools_dir)/
-endif
-
-GEN_HDRS := $(arm64_hdr_outdir)arch/arm64/include/generated/
-CFLAGS += -I$(GEN_HDRS)
-
-$(GEN_HDRS): $(wildcard $(arm64_tools_dir)/*)
- $(MAKE) -C $(arm64_tools_dir) OUTPUT=$(arm64_hdr_outdir)
-endif
-
-no-pie-option := $(call try-run, echo 'int main(void) { return 0; }' | \
- $(CC) -Werror $(CFLAGS) -no-pie -x c - -o "$$TMP", -no-pie)
-
-# On s390, build the testcases KVM-enabled
-pgste-option = $(call try-run, echo 'int main(void) { return 0; }' | \
- $(CC) -Werror -Wl$(comma)--s390-pgste -x c - -o "$$TMP",-Wl$(comma)--s390-pgste)
-
-LDLIBS += -ldl
-LDFLAGS += -pthread $(no-pie-option) $(pgste-option)
-
-LIBKVM_C := $(filter %.c,$(LIBKVM))
-LIBKVM_S := $(filter %.S,$(LIBKVM))
-LIBKVM_C_OBJ := $(patsubst %.c, $(OUTPUT)/%.o, $(LIBKVM_C))
-LIBKVM_S_OBJ := $(patsubst %.S, $(OUTPUT)/%.o, $(LIBKVM_S))
-LIBKVM_STRING_OBJ := $(patsubst %.c, $(OUTPUT)/%.o, $(LIBKVM_STRING))
-LIBKVM_OBJS = $(LIBKVM_C_OBJ) $(LIBKVM_S_OBJ) $(LIBKVM_STRING_OBJ)
-SPLIT_TEST_GEN_PROGS := $(patsubst %, $(OUTPUT)/%, $(SPLIT_TESTS))
-SPLIT_TEST_GEN_OBJ := $(patsubst %, $(OUTPUT)/$(ARCH_DIR)/%.o, $(SPLIT_TESTS))
-
-TEST_GEN_OBJ = $(patsubst %, %.o, $(TEST_GEN_PROGS))
-TEST_GEN_OBJ += $(patsubst %, %.o, $(TEST_GEN_PROGS_EXTENDED))
-TEST_DEP_FILES = $(patsubst %.o, %.d, $(TEST_GEN_OBJ))
-TEST_DEP_FILES += $(patsubst %.o, %.d, $(LIBKVM_OBJS))
-TEST_DEP_FILES += $(patsubst %.o, %.d, $(SPLIT_TEST_GEN_OBJ))
--include $(TEST_DEP_FILES)
-
-$(shell mkdir -p $(sort $(OUTPUT)/$(ARCH_DIR) $(dir $(LIBKVM_C_OBJ) $(LIBKVM_S_OBJ))))
-
-$(filter-out $(SPLIT_TEST_GEN_PROGS), $(TEST_GEN_PROGS)) \
-$(TEST_GEN_PROGS_EXTENDED): %: %.o
- $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $< $(LIBKVM_OBJS) $(LDLIBS) -o $@
-$(TEST_GEN_OBJ): $(OUTPUT)/%.o: %.c
- $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
-
-$(SPLIT_TEST_GEN_PROGS): $(OUTPUT)/%: $(OUTPUT)/%.o $(OUTPUT)/$(ARCH_DIR)/%.o
- $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $^ $(LDLIBS) -o $@
-$(SPLIT_TEST_GEN_OBJ): $(OUTPUT)/$(ARCH_DIR)/%.o: $(ARCH_DIR)/%.c
- $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
-
-EXTRA_CLEAN += $(GEN_HDRS) \
- $(LIBKVM_OBJS) \
- $(SPLIT_TEST_GEN_OBJ) \
- $(TEST_DEP_FILES) \
- $(TEST_GEN_OBJ) \
- cscope.*
-
-$(LIBKVM_C_OBJ): $(OUTPUT)/%.o: %.c $(GEN_HDRS)
- $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
-
-$(LIBKVM_S_OBJ): $(OUTPUT)/%.o: %.S $(GEN_HDRS)
- $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
-
-# Compile the string overrides as freestanding to prevent the compiler from
-# generating self-referential code, e.g. without "freestanding" the compiler may
-# "optimize" memcmp() by invoking memcmp(), thus causing infinite recursion.
-$(LIBKVM_STRING_OBJ): $(OUTPUT)/%.o: %.c
- $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c -ffreestanding $< -o $@
-
-$(shell mkdir -p $(sort $(dir $(TEST_GEN_PROGS))))
-$(SPLIT_TEST_GEN_OBJ): $(GEN_HDRS)
-$(TEST_GEN_PROGS): $(LIBKVM_OBJS)
-$(TEST_GEN_PROGS_EXTENDED): $(LIBKVM_OBJS)
-$(TEST_GEN_OBJ): $(GEN_HDRS)
-
-cscope: include_paths = $(LINUX_TOOL_INCLUDE) $(LINUX_HDR_PATH) include lib ..
-cscope:
- $(RM) cscope.*
- (find $(include_paths) -name '*.h' \
- -exec realpath --relative-base=$(PWD) {} \;; \
- find . -name '*.c' \
- -exec realpath --relative-base=$(PWD) {} \;) | sort -u > cscope.files
- cscope -b
diff --git a/tools/testing/selftests/kvm/Makefile.kvm b/tools/testing/selftests/kvm/Makefile.kvm
new file mode 100644
index 000000000000..e988a72f8c20
--- /dev/null
+++ b/tools/testing/selftests/kvm/Makefile.kvm
@@ -0,0 +1,334 @@
+# SPDX-License-Identifier: GPL-2.0-only
+include ../../../build/Build.include
+
+all:
+
+LIBKVM += lib/assert.c
+LIBKVM += lib/elf.c
+LIBKVM += lib/guest_modes.c
+LIBKVM += lib/io.c
+LIBKVM += lib/kvm_util.c
+LIBKVM += lib/memstress.c
+LIBKVM += lib/guest_sprintf.c
+LIBKVM += lib/rbtree.c
+LIBKVM += lib/sparsebit.c
+LIBKVM += lib/test_util.c
+LIBKVM += lib/ucall_common.c
+LIBKVM += lib/userfaultfd_util.c
+
+LIBKVM_STRING += lib/string_override.c
+
+LIBKVM_x86_64 += lib/x86_64/apic.c
+LIBKVM_x86_64 += lib/x86_64/handlers.S
+LIBKVM_x86_64 += lib/x86_64/hyperv.c
+LIBKVM_x86_64 += lib/x86_64/memstress.c
+LIBKVM_x86_64 += lib/x86_64/pmu.c
+LIBKVM_x86_64 += lib/x86_64/processor.c
+LIBKVM_x86_64 += lib/x86_64/sev.c
+LIBKVM_x86_64 += lib/x86_64/svm.c
+LIBKVM_x86_64 += lib/x86_64/ucall.c
+LIBKVM_x86_64 += lib/x86_64/vmx.c
+
+LIBKVM_aarch64 += lib/aarch64/gic.c
+LIBKVM_aarch64 += lib/aarch64/gic_v3.c
+LIBKVM_aarch64 += lib/aarch64/gic_v3_its.c
+LIBKVM_aarch64 += lib/aarch64/handlers.S
+LIBKVM_aarch64 += lib/aarch64/processor.c
+LIBKVM_aarch64 += lib/aarch64/spinlock.c
+LIBKVM_aarch64 += lib/aarch64/ucall.c
+LIBKVM_aarch64 += lib/aarch64/vgic.c
+
+LIBKVM_s390x += lib/s390x/diag318_test_handler.c
+LIBKVM_s390x += lib/s390x/processor.c
+LIBKVM_s390x += lib/s390x/ucall.c
+LIBKVM_s390x += lib/s390x/facility.c
+
+LIBKVM_riscv += lib/riscv/handlers.S
+LIBKVM_riscv += lib/riscv/processor.c
+LIBKVM_riscv += lib/riscv/ucall.c
+
+# Non-compiled test targets
+TEST_PROGS_x86_64 += x86_64/nx_huge_pages_test.sh
+
+# Compiled test targets
+TEST_GEN_PROGS_x86_64 = x86_64/cpuid_test
+TEST_GEN_PROGS_x86_64 += x86_64/cr4_cpuid_sync_test
+TEST_GEN_PROGS_x86_64 += x86_64/dirty_log_page_splitting_test
+TEST_GEN_PROGS_x86_64 += x86_64/feature_msrs_test
+TEST_GEN_PROGS_x86_64 += x86_64/exit_on_emulation_failure_test
+TEST_GEN_PROGS_x86_64 += x86_64/fix_hypercall_test
+TEST_GEN_PROGS_x86_64 += x86_64/hwcr_msr_test
+TEST_GEN_PROGS_x86_64 += x86_64/hyperv_clock
+TEST_GEN_PROGS_x86_64 += x86_64/hyperv_cpuid
+TEST_GEN_PROGS_x86_64 += x86_64/hyperv_evmcs
+TEST_GEN_PROGS_x86_64 += x86_64/hyperv_extended_hypercalls
+TEST_GEN_PROGS_x86_64 += x86_64/hyperv_features
+TEST_GEN_PROGS_x86_64 += x86_64/hyperv_ipi
+TEST_GEN_PROGS_x86_64 += x86_64/hyperv_svm_test
+TEST_GEN_PROGS_x86_64 += x86_64/hyperv_tlb_flush
+TEST_GEN_PROGS_x86_64 += x86_64/kvm_clock_test
+TEST_GEN_PROGS_x86_64 += x86_64/kvm_pv_test
+TEST_GEN_PROGS_x86_64 += x86_64/monitor_mwait_test
+TEST_GEN_PROGS_x86_64 += x86_64/nested_exceptions_test
+TEST_GEN_PROGS_x86_64 += x86_64/platform_info_test
+TEST_GEN_PROGS_x86_64 += x86_64/pmu_counters_test
+TEST_GEN_PROGS_x86_64 += x86_64/pmu_event_filter_test
+TEST_GEN_PROGS_x86_64 += x86_64/private_mem_conversions_test
+TEST_GEN_PROGS_x86_64 += x86_64/private_mem_kvm_exits_test
+TEST_GEN_PROGS_x86_64 += x86_64/set_boot_cpu_id
+TEST_GEN_PROGS_x86_64 += x86_64/set_sregs_test
+TEST_GEN_PROGS_x86_64 += x86_64/smaller_maxphyaddr_emulation_test
+TEST_GEN_PROGS_x86_64 += x86_64/smm_test
+TEST_GEN_PROGS_x86_64 += x86_64/state_test
+TEST_GEN_PROGS_x86_64 += x86_64/vmx_preemption_timer_test
+TEST_GEN_PROGS_x86_64 += x86_64/svm_vmcall_test
+TEST_GEN_PROGS_x86_64 += x86_64/svm_int_ctl_test
+TEST_GEN_PROGS_x86_64 += x86_64/svm_nested_shutdown_test
+TEST_GEN_PROGS_x86_64 += x86_64/svm_nested_soft_inject_test
+TEST_GEN_PROGS_x86_64 += x86_64/tsc_scaling_sync
+TEST_GEN_PROGS_x86_64 += x86_64/sync_regs_test
+TEST_GEN_PROGS_x86_64 += x86_64/ucna_injection_test
+TEST_GEN_PROGS_x86_64 += x86_64/userspace_io_test
+TEST_GEN_PROGS_x86_64 += x86_64/userspace_msr_exit_test
+TEST_GEN_PROGS_x86_64 += x86_64/vmx_apic_access_test
+TEST_GEN_PROGS_x86_64 += x86_64/vmx_close_while_nested_test
+TEST_GEN_PROGS_x86_64 += x86_64/vmx_dirty_log_test
+TEST_GEN_PROGS_x86_64 += x86_64/vmx_exception_with_invalid_guest_state
+TEST_GEN_PROGS_x86_64 += x86_64/vmx_msrs_test
+TEST_GEN_PROGS_x86_64 += x86_64/vmx_invalid_nested_guest_state
+TEST_GEN_PROGS_x86_64 += x86_64/vmx_set_nested_state_test
+TEST_GEN_PROGS_x86_64 += x86_64/vmx_tsc_adjust_test
+TEST_GEN_PROGS_x86_64 += x86_64/vmx_nested_tsc_scaling_test
+TEST_GEN_PROGS_x86_64 += x86_64/apic_bus_clock_test
+TEST_GEN_PROGS_x86_64 += x86_64/xapic_ipi_test
+TEST_GEN_PROGS_x86_64 += x86_64/xapic_state_test
+TEST_GEN_PROGS_x86_64 += x86_64/xcr0_cpuid_test
+TEST_GEN_PROGS_x86_64 += x86_64/xss_msr_test
+TEST_GEN_PROGS_x86_64 += x86_64/debug_regs
+TEST_GEN_PROGS_x86_64 += x86_64/tsc_msrs_test
+TEST_GEN_PROGS_x86_64 += x86_64/vmx_pmu_caps_test
+TEST_GEN_PROGS_x86_64 += x86_64/xen_shinfo_test
+TEST_GEN_PROGS_x86_64 += x86_64/xen_vmcall_test
+TEST_GEN_PROGS_x86_64 += x86_64/sev_init2_tests
+TEST_GEN_PROGS_x86_64 += x86_64/sev_migrate_tests
+TEST_GEN_PROGS_x86_64 += x86_64/sev_smoke_test
+TEST_GEN_PROGS_x86_64 += x86_64/amx_test
+TEST_GEN_PROGS_x86_64 += x86_64/max_vcpuid_cap_test
+TEST_GEN_PROGS_x86_64 += x86_64/triple_fault_event_test
+TEST_GEN_PROGS_x86_64 += x86_64/recalc_apic_map_test
+TEST_GEN_PROGS_x86_64 += access_tracking_perf_test
+TEST_GEN_PROGS_x86_64 += coalesced_io_test
+TEST_GEN_PROGS_x86_64 += demand_paging_test
+TEST_GEN_PROGS_x86_64 += dirty_log_test
+TEST_GEN_PROGS_x86_64 += dirty_log_perf_test
+TEST_GEN_PROGS_x86_64 += guest_memfd_test
+TEST_GEN_PROGS_x86_64 += guest_print_test
+TEST_GEN_PROGS_x86_64 += hardware_disable_test
+TEST_GEN_PROGS_x86_64 += kvm_create_max_vcpus
+TEST_GEN_PROGS_x86_64 += kvm_page_table_test
+TEST_GEN_PROGS_x86_64 += mmu_stress_test
+TEST_GEN_PROGS_x86_64 += memslot_modification_stress_test
+TEST_GEN_PROGS_x86_64 += memslot_perf_test
+TEST_GEN_PROGS_x86_64 += rseq_test
+TEST_GEN_PROGS_x86_64 += set_memory_region_test
+TEST_GEN_PROGS_x86_64 += steal_time
+TEST_GEN_PROGS_x86_64 += kvm_binary_stats_test
+TEST_GEN_PROGS_x86_64 += system_counter_offset_test
+TEST_GEN_PROGS_x86_64 += pre_fault_memory_test
+
+# Compiled outputs used by test targets
+TEST_GEN_PROGS_EXTENDED_x86_64 += x86_64/nx_huge_pages_test
+
+TEST_GEN_PROGS_aarch64 += aarch64/aarch32_id_regs
+TEST_GEN_PROGS_aarch64 += aarch64/arch_timer_edge_cases
+TEST_GEN_PROGS_aarch64 += aarch64/debug-exceptions
+TEST_GEN_PROGS_aarch64 += aarch64/hypercalls
+TEST_GEN_PROGS_aarch64 += aarch64/mmio_abort
+TEST_GEN_PROGS_aarch64 += aarch64/page_fault_test
+TEST_GEN_PROGS_aarch64 += aarch64/psci_test
+TEST_GEN_PROGS_aarch64 += aarch64/set_id_regs
+TEST_GEN_PROGS_aarch64 += aarch64/smccc_filter
+TEST_GEN_PROGS_aarch64 += aarch64/vcpu_width_config
+TEST_GEN_PROGS_aarch64 += aarch64/vgic_init
+TEST_GEN_PROGS_aarch64 += aarch64/vgic_irq
+TEST_GEN_PROGS_aarch64 += aarch64/vgic_lpi_stress
+TEST_GEN_PROGS_aarch64 += aarch64/vpmu_counter_access
+TEST_GEN_PROGS_aarch64 += aarch64/no-vgic-v3
+TEST_GEN_PROGS_aarch64 += access_tracking_perf_test
+TEST_GEN_PROGS_aarch64 += arch_timer
+TEST_GEN_PROGS_aarch64 += coalesced_io_test
+TEST_GEN_PROGS_aarch64 += demand_paging_test
+TEST_GEN_PROGS_aarch64 += dirty_log_test
+TEST_GEN_PROGS_aarch64 += dirty_log_perf_test
+TEST_GEN_PROGS_aarch64 += guest_print_test
+TEST_GEN_PROGS_aarch64 += get-reg-list
+TEST_GEN_PROGS_aarch64 += kvm_create_max_vcpus
+TEST_GEN_PROGS_aarch64 += kvm_page_table_test
+TEST_GEN_PROGS_aarch64 += memslot_modification_stress_test
+TEST_GEN_PROGS_aarch64 += memslot_perf_test
+TEST_GEN_PROGS_aarch64 += mmu_stress_test
+TEST_GEN_PROGS_aarch64 += rseq_test
+TEST_GEN_PROGS_aarch64 += set_memory_region_test
+TEST_GEN_PROGS_aarch64 += steal_time
+TEST_GEN_PROGS_aarch64 += kvm_binary_stats_test
+
+TEST_GEN_PROGS_s390x = s390x/memop
+TEST_GEN_PROGS_s390x += s390x/resets
+TEST_GEN_PROGS_s390x += s390x/sync_regs_test
+TEST_GEN_PROGS_s390x += s390x/tprot
+TEST_GEN_PROGS_s390x += s390x/cmma_test
+TEST_GEN_PROGS_s390x += s390x/debug_test
+TEST_GEN_PROGS_s390x += s390x/cpumodel_subfuncs_test
+TEST_GEN_PROGS_s390x += s390x/shared_zeropage_test
+TEST_GEN_PROGS_s390x += s390x/ucontrol_test
+TEST_GEN_PROGS_s390x += demand_paging_test
+TEST_GEN_PROGS_s390x += dirty_log_test
+TEST_GEN_PROGS_s390x += guest_print_test
+TEST_GEN_PROGS_s390x += kvm_create_max_vcpus
+TEST_GEN_PROGS_s390x += kvm_page_table_test
+TEST_GEN_PROGS_s390x += rseq_test
+TEST_GEN_PROGS_s390x += set_memory_region_test
+TEST_GEN_PROGS_s390x += kvm_binary_stats_test
+
+TEST_GEN_PROGS_riscv += riscv/sbi_pmu_test
+TEST_GEN_PROGS_riscv += riscv/ebreak_test
+TEST_GEN_PROGS_riscv += arch_timer
+TEST_GEN_PROGS_riscv += coalesced_io_test
+TEST_GEN_PROGS_riscv += demand_paging_test
+TEST_GEN_PROGS_riscv += dirty_log_test
+TEST_GEN_PROGS_riscv += get-reg-list
+TEST_GEN_PROGS_riscv += guest_print_test
+TEST_GEN_PROGS_riscv += kvm_binary_stats_test
+TEST_GEN_PROGS_riscv += kvm_create_max_vcpus
+TEST_GEN_PROGS_riscv += kvm_page_table_test
+TEST_GEN_PROGS_riscv += set_memory_region_test
+TEST_GEN_PROGS_riscv += steal_time
+
+SPLIT_TESTS += arch_timer
+SPLIT_TESTS += get-reg-list
+
+TEST_PROGS += $(TEST_PROGS_$(ARCH_DIR))
+TEST_GEN_PROGS += $(TEST_GEN_PROGS_$(ARCH_DIR))
+TEST_GEN_PROGS_EXTENDED += $(TEST_GEN_PROGS_EXTENDED_$(ARCH_DIR))
+LIBKVM += $(LIBKVM_$(ARCH_DIR))
+
+OVERRIDE_TARGETS = 1
+
+# lib.mak defines $(OUTPUT), prepends $(OUTPUT)/ to $(TEST_GEN_PROGS), and most
+# importantly defines, i.e. overwrites, $(CC) (unless `make -e` or `make CC=`,
+# which causes the environment variable to override the makefile).
+include ../lib.mk
+
+INSTALL_HDR_PATH = $(top_srcdir)/usr
+LINUX_HDR_PATH = $(INSTALL_HDR_PATH)/include/
+LINUX_TOOL_INCLUDE = $(top_srcdir)/tools/include
+ifeq ($(ARCH),x86_64)
+LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/x86/include
+else
+LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/$(ARCH)/include
+endif
+CFLAGS += -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 \
+ -Wno-gnu-variable-sized-type-not-at-end -MD -MP -DCONFIG_64BIT \
+ -fno-builtin-memcmp -fno-builtin-memcpy \
+ -fno-builtin-memset -fno-builtin-strnlen \
+ -fno-stack-protector -fno-PIE -fno-strict-aliasing \
+ -I$(LINUX_TOOL_INCLUDE) -I$(LINUX_TOOL_ARCH_INCLUDE) \
+ -I$(LINUX_HDR_PATH) -Iinclude -I$(<D) -Iinclude/$(ARCH_DIR) \
+ -I ../rseq -I.. $(EXTRA_CFLAGS) $(KHDR_INCLUDES)
+ifeq ($(ARCH),s390)
+ CFLAGS += -march=z10
+endif
+ifeq ($(ARCH),x86)
+ifeq ($(shell echo "void foo(void) { }" | $(CC) -march=x86-64-v2 -x c - -c -o /dev/null 2>/dev/null; echo "$$?"),0)
+ CFLAGS += -march=x86-64-v2
+endif
+endif
+ifeq ($(ARCH),arm64)
+tools_dir := $(top_srcdir)/tools
+arm64_tools_dir := $(tools_dir)/arch/arm64/tools/
+
+ifneq ($(abs_objdir),)
+arm64_hdr_outdir := $(abs_objdir)/tools/
+else
+arm64_hdr_outdir := $(tools_dir)/
+endif
+
+GEN_HDRS := $(arm64_hdr_outdir)arch/arm64/include/generated/
+CFLAGS += -I$(GEN_HDRS)
+
+$(GEN_HDRS): $(wildcard $(arm64_tools_dir)/*)
+ $(MAKE) -C $(arm64_tools_dir) OUTPUT=$(arm64_hdr_outdir)
+endif
+
+no-pie-option := $(call try-run, echo 'int main(void) { return 0; }' | \
+ $(CC) -Werror $(CFLAGS) -no-pie -x c - -o "$$TMP", -no-pie)
+
+# On s390, build the testcases KVM-enabled
+pgste-option = $(call try-run, echo 'int main(void) { return 0; }' | \
+ $(CC) -Werror -Wl$(comma)--s390-pgste -x c - -o "$$TMP",-Wl$(comma)--s390-pgste)
+
+LDLIBS += -ldl
+LDFLAGS += -pthread $(no-pie-option) $(pgste-option)
+
+LIBKVM_C := $(filter %.c,$(LIBKVM))
+LIBKVM_S := $(filter %.S,$(LIBKVM))
+LIBKVM_C_OBJ := $(patsubst %.c, $(OUTPUT)/%.o, $(LIBKVM_C))
+LIBKVM_S_OBJ := $(patsubst %.S, $(OUTPUT)/%.o, $(LIBKVM_S))
+LIBKVM_STRING_OBJ := $(patsubst %.c, $(OUTPUT)/%.o, $(LIBKVM_STRING))
+LIBKVM_OBJS = $(LIBKVM_C_OBJ) $(LIBKVM_S_OBJ) $(LIBKVM_STRING_OBJ)
+SPLIT_TEST_GEN_PROGS := $(patsubst %, $(OUTPUT)/%, $(SPLIT_TESTS))
+SPLIT_TEST_GEN_OBJ := $(patsubst %, $(OUTPUT)/$(ARCH_DIR)/%.o, $(SPLIT_TESTS))
+
+TEST_GEN_OBJ = $(patsubst %, %.o, $(TEST_GEN_PROGS))
+TEST_GEN_OBJ += $(patsubst %, %.o, $(TEST_GEN_PROGS_EXTENDED))
+TEST_DEP_FILES = $(patsubst %.o, %.d, $(TEST_GEN_OBJ))
+TEST_DEP_FILES += $(patsubst %.o, %.d, $(LIBKVM_OBJS))
+TEST_DEP_FILES += $(patsubst %.o, %.d, $(SPLIT_TEST_GEN_OBJ))
+-include $(TEST_DEP_FILES)
+
+$(shell mkdir -p $(sort $(OUTPUT)/$(ARCH_DIR) $(dir $(LIBKVM_C_OBJ) $(LIBKVM_S_OBJ))))
+
+$(filter-out $(SPLIT_TEST_GEN_PROGS), $(TEST_GEN_PROGS)) \
+$(TEST_GEN_PROGS_EXTENDED): %: %.o
+ $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $< $(LIBKVM_OBJS) $(LDLIBS) -o $@
+$(TEST_GEN_OBJ): $(OUTPUT)/%.o: %.c
+ $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
+
+$(SPLIT_TEST_GEN_PROGS): $(OUTPUT)/%: $(OUTPUT)/%.o $(OUTPUT)/$(ARCH_DIR)/%.o
+ $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $^ $(LDLIBS) -o $@
+$(SPLIT_TEST_GEN_OBJ): $(OUTPUT)/$(ARCH_DIR)/%.o: $(ARCH_DIR)/%.c
+ $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
+
+EXTRA_CLEAN += $(GEN_HDRS) \
+ $(LIBKVM_OBJS) \
+ $(SPLIT_TEST_GEN_OBJ) \
+ $(TEST_DEP_FILES) \
+ $(TEST_GEN_OBJ) \
+ cscope.*
+
+$(LIBKVM_C_OBJ): $(OUTPUT)/%.o: %.c $(GEN_HDRS)
+ $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
+
+$(LIBKVM_S_OBJ): $(OUTPUT)/%.o: %.S $(GEN_HDRS)
+ $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
+
+# Compile the string overrides as freestanding to prevent the compiler from
+# generating self-referential code, e.g. without "freestanding" the compiler may
+# "optimize" memcmp() by invoking memcmp(), thus causing infinite recursion.
+$(LIBKVM_STRING_OBJ): $(OUTPUT)/%.o: %.c
+ $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c -ffreestanding $< -o $@
+
+$(shell mkdir -p $(sort $(dir $(TEST_GEN_PROGS))))
+$(SPLIT_TEST_GEN_OBJ): $(GEN_HDRS)
+$(TEST_GEN_PROGS): $(LIBKVM_OBJS)
+$(TEST_GEN_PROGS_EXTENDED): $(LIBKVM_OBJS)
+$(TEST_GEN_OBJ): $(GEN_HDRS)
+
+cscope: include_paths = $(LINUX_TOOL_INCLUDE) $(LINUX_HDR_PATH) include lib ..
+cscope:
+ $(RM) cscope.*
+ (find $(include_paths) -name '*.h' \
+ -exec realpath --relative-base=$(PWD) {} \;; \
+ find . -name '*.c' \
+ -exec realpath --relative-base=$(PWD) {} \;) | sort -u > cscope.files
+ cscope -b