aboutsummaryrefslogtreecommitdiff
path: root/tests
diff options
context:
space:
mode:
Diffstat (limited to 'tests')
-rw-r--r--tests/functional/meson.build1
-rwxr-xr-xtests/functional/test_aarch64_hotplug_pci.py72
-rwxr-xr-xtests/functional/test_aarch64_sbsaref_freebsd.py8
-rw-r--r--tests/qtest/vmgenid-test.c2
-rw-r--r--tests/tcg/Makefile.target7
-rw-r--r--tests/tcg/plugins/meson.build2
-rw-r--r--tests/tcg/plugins/patch.c251
-rw-r--r--tests/tcg/x86_64/Makefile.softmmu-target21
-rw-r--r--tests/tcg/x86_64/system/patch-target.c22
-rwxr-xr-xtests/tcg/x86_64/system/validate-patch.py39
10 files changed, 411 insertions, 14 deletions
diff --git a/tests/functional/meson.build b/tests/functional/meson.build
index 8515856..b542b3a 100644
--- a/tests/functional/meson.build
+++ b/tests/functional/meson.build
@@ -85,6 +85,7 @@ tests_aarch64_system_thorough = [
'aarch64_aspeed_ast2700',
'aarch64_aspeed_ast2700fc',
'aarch64_device_passthrough',
+ 'aarch64_hotplug_pci',
'aarch64_imx8mp_evk',
'aarch64_raspi3',
'aarch64_raspi4',
diff --git a/tests/functional/test_aarch64_hotplug_pci.py b/tests/functional/test_aarch64_hotplug_pci.py
new file mode 100755
index 0000000..c9bb7f1
--- /dev/null
+++ b/tests/functional/test_aarch64_hotplug_pci.py
@@ -0,0 +1,72 @@
+#!/usr/bin/env python3
+#
+# The test hotplugs a PCI device and checks it on a Linux guest.
+#
+# Copyright (c) 2025 Linaro Ltd.
+#
+# Author:
+# Gustavo Romero <gustavo.romero@linaro.org>
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+from qemu_test import LinuxKernelTest, Asset, exec_command_and_wait_for_pattern
+from qemu_test import BUILD_DIR
+
+class HotplugPCI(LinuxKernelTest):
+
+ ASSET_KERNEL = Asset(
+ ('https://ftp.debian.org/debian/dists/stable/main/installer-arm64/'
+ '20230607+deb12u11/images/netboot/debian-installer/arm64/linux'),
+ 'd92a60392ce1e379ca198a1a820899f8f0d39a62d047c41ab79492f81541a9d9')
+
+ ASSET_INITRD = Asset(
+ ('https://ftp.debian.org/debian/dists/stable/main/installer-arm64/'
+ '20230607+deb12u11/images/netboot/debian-installer/arm64/initrd.gz'),
+ '9f817f76951f3237bca8216bee35267bfb826815687f4b2fcdd5e6c2a917790c')
+
+ def test_hotplug_pci(self):
+
+ self.set_machine('virt')
+
+ self.vm.add_args('-m', '512M',
+ '-cpu', 'cortex-a57',
+ '-append',
+ 'console=ttyAMA0,115200 init=/bin/sh',
+ '-device',
+ 'pcie-root-port,bus=pcie.0,chassis=1,slot=1,id=pcie.1',
+ '-bios',
+ self.build_file('pc-bios', 'edk2-aarch64-code.fd'))
+
+ # BusyBox prompt
+ prompt = "~ #"
+ self.launch_kernel(self.ASSET_KERNEL.fetch(),
+ self.ASSET_INITRD.fetch(),
+ wait_for=prompt)
+
+ # Check for initial state: 2 network adapters, lo and enp0s1.
+ exec_command_and_wait_for_pattern(self,
+ 'ls /sys/class/net | wc -l',
+ '2')
+
+ # Hotplug one network adapter to the root port, i.e. pcie.1 bus.
+ self.vm.cmd('device_add',
+ driver='virtio-net-pci',
+ bus='pcie.1',
+ addr=0,
+ id='na')
+ # Wait for the kernel to recognize the new device.
+ self.wait_for_console_pattern('virtio-pci')
+ self.wait_for_console_pattern('virtio_net')
+
+ # Check if there is a new network adapter.
+ exec_command_and_wait_for_pattern(self,
+ 'ls /sys/class/net | wc -l',
+ '3')
+
+ self.vm.cmd('device_del', id='na')
+ exec_command_and_wait_for_pattern(self,
+ 'ls /sys/class/net | wc -l',
+ '2')
+
+if __name__ == '__main__':
+ LinuxKernelTest.main()
diff --git a/tests/functional/test_aarch64_sbsaref_freebsd.py b/tests/functional/test_aarch64_sbsaref_freebsd.py
index 3cddc08..7ef016f 100755
--- a/tests/functional/test_aarch64_sbsaref_freebsd.py
+++ b/tests/functional/test_aarch64_sbsaref_freebsd.py
@@ -18,9 +18,9 @@ from test_aarch64_sbsaref import fetch_firmware
class Aarch64SbsarefFreeBSD(QemuSystemTest):
ASSET_FREEBSD_ISO = Asset(
- ('https://download.freebsd.org/releases/arm64/aarch64/ISO-IMAGES/'
- '14.1/FreeBSD-14.1-RELEASE-arm64-aarch64-bootonly.iso'),
- '44cdbae275ef1bb6dab1d5fbb59473d4f741e1c8ea8a80fd9e906b531d6ad461')
+ ('http://ftp-archive.freebsd.org/pub/FreeBSD-Archive/old-releases/arm64'
+ '/aarch64/ISO-IMAGES/14.1/FreeBSD-14.1-RELEASE-arm64-aarch64-bootonly.iso.xz'),
+ '7313a4495ffd71ab77b49b1e83f571521c32756e1d75bf48bd890e0ab0f75827')
# This tests the whole boot chain from EFI to Userspace
# We only boot a whole OS for the current top level CPU and GIC
@@ -29,7 +29,7 @@ class Aarch64SbsarefFreeBSD(QemuSystemTest):
self.set_machine('sbsa-ref')
fetch_firmware(self)
- img_path = self.ASSET_FREEBSD_ISO.fetch()
+ img_path = self.uncompress(self.ASSET_FREEBSD_ISO)
self.vm.set_console()
self.vm.add_args(
diff --git a/tests/qtest/vmgenid-test.c b/tests/qtest/vmgenid-test.c
index e613374..33e96b7 100644
--- a/tests/qtest/vmgenid-test.c
+++ b/tests/qtest/vmgenid-test.c
@@ -61,7 +61,7 @@ static uint32_t acpi_find_vgia(QTestState *qts)
/* The GUID is written at a fixed offset into the fw_cfg file
* in order to implement the "OVMF SDT Header probe suppressor"
- * see docs/specs/vmgenid.txt for more details
+ * see docs/specs/vmgenid.rst for more details
*/
guid_offset = le32_to_cpu(vgia_val) + VMGENID_GUID_OFFSET;
g_free(table_aml);
diff --git a/tests/tcg/Makefile.target b/tests/tcg/Makefile.target
index 95ff76e..af68f11 100644
--- a/tests/tcg/Makefile.target
+++ b/tests/tcg/Makefile.target
@@ -151,7 +151,12 @@ ifeq ($(CONFIG_PLUGIN),y)
PLUGIN_SRC=$(SRC_PATH)/tests/tcg/plugins
PLUGIN_LIB=../plugins
VPATH+=$(PLUGIN_LIB)
-PLUGINS=$(patsubst %.c, lib%.so, $(notdir $(wildcard $(PLUGIN_SRC)/*.c)))
+# Some plugins need to be disabled for all tests to avoid exponential explosion.
+# For example, libpatch.so only needs to run against the arch-specific patch
+# target test, so we explicitly run it in the arch-specific Makefile.
+DISABLE_PLUGINS=libpatch.so
+PLUGINS=$(filter-out $(DISABLE_PLUGINS), \
+ $(patsubst %.c, lib%.so, $(notdir $(wildcard $(PLUGIN_SRC)/*.c))))
# We need to ensure expand the run-plugin-TEST-with-PLUGIN
# pre-requistes manually here as we can't use stems to handle it. We
diff --git a/tests/tcg/plugins/meson.build b/tests/tcg/plugins/meson.build
index 0293422..61a007d 100644
--- a/tests/tcg/plugins/meson.build
+++ b/tests/tcg/plugins/meson.build
@@ -1,6 +1,6 @@
t = []
if get_option('plugins')
- foreach i : ['bb', 'empty', 'inline', 'insn', 'mem', 'reset', 'syscall']
+ foreach i : ['bb', 'empty', 'inline', 'insn', 'mem', 'reset', 'syscall', 'patch']
if host_os == 'windows'
t += shared_module(i, files(i + '.c') + '../../../contrib/plugins/win32_linker.c',
include_directories: '../../../include/qemu',
diff --git a/tests/tcg/plugins/patch.c b/tests/tcg/plugins/patch.c
new file mode 100644
index 0000000..111c5c1
--- /dev/null
+++ b/tests/tcg/plugins/patch.c
@@ -0,0 +1,251 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * This plugin patches instructions matching a pattern to a different
+ * instruction as they execute
+ *
+ */
+
+#include "glib.h"
+#include "glibconfig.h"
+
+#include <qemu-plugin.h>
+#include <string.h>
+#include <stdio.h>
+
+QEMU_PLUGIN_EXPORT int qemu_plugin_version = QEMU_PLUGIN_VERSION;
+
+static bool use_hwaddr;
+static GByteArray *target_data;
+static GByteArray *patch_data;
+
+/**
+ * Parse a string of hexadecimal digits into a GByteArray. The string must be
+ * even length
+ */
+static GByteArray *str_to_bytes(const char *str)
+{
+ size_t len = strlen(str);
+
+ if (len == 0 || len % 2 != 0) {
+ return NULL;
+ }
+
+ GByteArray *bytes = g_byte_array_new();
+ char byte[3] = {0};
+ guint8 value = 0;
+
+ for (size_t i = 0; i < len; i += 2) {
+ byte[0] = str[i];
+ byte[1] = str[i + 1];
+ value = (guint8)g_ascii_strtoull(byte, NULL, 16);
+ g_byte_array_append(bytes, &value, 1);
+ }
+
+ return bytes;
+}
+
+static void patch_hwaddr(unsigned int vcpu_index, void *userdata)
+{
+ uintptr_t addr = (uintptr_t) userdata;
+ g_autoptr(GString) str = g_string_new(NULL);
+ g_string_printf(str, "patching: @0x%"
+ PRIxPTR "\n",
+ addr);
+ qemu_plugin_outs(str->str);
+
+ enum qemu_plugin_hwaddr_operation_result result =
+ qemu_plugin_write_memory_hwaddr(addr, patch_data);
+
+
+ if (result != QEMU_PLUGIN_HWADDR_OPERATION_OK) {
+ g_autoptr(GString) errmsg = g_string_new(NULL);
+ g_string_printf(errmsg, "Failed to write memory: %d\n", result);
+ qemu_plugin_outs(errmsg->str);
+ return;
+ }
+
+ GByteArray *read_data = g_byte_array_new();
+
+ result = qemu_plugin_read_memory_hwaddr(addr, read_data,
+ patch_data->len);
+
+ qemu_plugin_outs("Reading memory...\n");
+
+ if (result != QEMU_PLUGIN_HWADDR_OPERATION_OK) {
+ g_autoptr(GString) errmsg = g_string_new(NULL);
+ g_string_printf(errmsg, "Failed to read memory: %d\n", result);
+ qemu_plugin_outs(errmsg->str);
+ return;
+ }
+
+ if (memcmp(patch_data->data, read_data->data, patch_data->len) != 0) {
+ qemu_plugin_outs("Failed to read back written data\n");
+ }
+
+ qemu_plugin_outs("Success!\n");
+
+ return;
+}
+
+static void patch_vaddr(unsigned int vcpu_index, void *userdata)
+{
+ uintptr_t addr = (uintptr_t) userdata;
+ uint64_t hwaddr = 0;
+ if (!qemu_plugin_translate_vaddr(addr, &hwaddr)) {
+ qemu_plugin_outs("Failed to translate vaddr\n");
+ return;
+ }
+ g_autoptr(GString) str = g_string_new(NULL);
+ g_string_printf(str, "patching: @0x%"
+ PRIxPTR " hw: @0x%" PRIx64 "\n",
+ addr, hwaddr);
+ qemu_plugin_outs(str->str);
+
+ qemu_plugin_outs("Writing memory (vaddr)...\n");
+
+ if (!qemu_plugin_write_memory_vaddr(addr, patch_data)) {
+ qemu_plugin_outs("Failed to write memory\n");
+ return;
+ }
+
+ qemu_plugin_outs("Reading memory (vaddr)...\n");
+
+ g_autoptr(GByteArray) read_data = g_byte_array_new();
+
+ if (!qemu_plugin_read_memory_vaddr(addr, read_data, patch_data->len)) {
+ qemu_plugin_outs("Failed to read memory\n");
+ return;
+ }
+
+ if (memcmp(patch_data->data, read_data->data, patch_data->len) != 0) {
+ qemu_plugin_outs("Failed to read back written data\n");
+ }
+
+ qemu_plugin_outs("Success!\n");
+
+ return;
+}
+
+/*
+ * Callback on translation of a translation block.
+ */
+static void vcpu_tb_trans_cb(qemu_plugin_id_t id, struct qemu_plugin_tb *tb)
+{
+ g_autoptr(GByteArray) insn_data = g_byte_array_new();
+ uintptr_t addr = 0;
+
+ for (size_t i = 0; i < qemu_plugin_tb_n_insns(tb); i++) {
+ struct qemu_plugin_insn *insn = qemu_plugin_tb_get_insn(tb, i);
+ uint64_t vaddr = qemu_plugin_insn_vaddr(insn);
+
+ if (use_hwaddr) {
+ uint64_t hwaddr = 0;
+ if (!qemu_plugin_translate_vaddr(vaddr, &hwaddr)) {
+ qemu_plugin_outs("Failed to translate vaddr\n");
+ continue;
+ }
+ /*
+ * As we cannot emulate 64 bit systems on 32 bit hosts we
+ * should never see the top bits set, hence we can safely
+ * cast to uintptr_t.
+ */
+ g_assert(hwaddr <= UINTPTR_MAX);
+ addr = (uintptr_t) hwaddr;
+ } else {
+ g_assert(vaddr <= UINTPTR_MAX);
+ addr = (uintptr_t) vaddr;
+ }
+
+ g_byte_array_set_size(insn_data, qemu_plugin_insn_size(insn));
+ qemu_plugin_insn_data(insn, insn_data->data, insn_data->len);
+
+ if (insn_data->len >= target_data->len &&
+ !memcmp(insn_data->data, target_data->data,
+ MIN(target_data->len, insn_data->len))) {
+ if (use_hwaddr) {
+ qemu_plugin_register_vcpu_tb_exec_cb(tb, patch_hwaddr,
+ QEMU_PLUGIN_CB_NO_REGS,
+ (void *) addr);
+ } else {
+ qemu_plugin_register_vcpu_tb_exec_cb(tb, patch_vaddr,
+ QEMU_PLUGIN_CB_NO_REGS,
+ (void *) addr);
+ }
+ }
+ }
+}
+
+static void usage(void)
+{
+ fprintf(stderr, "Usage: <lib>,target=<bytes>,patch=<new_bytes>"
+ "[,use_hwaddr=true|false]");
+}
+
+/*
+ * Called when the plugin is installed
+ */
+QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id,
+ const qemu_info_t *info, int argc,
+ char **argv)
+{
+
+ use_hwaddr = true;
+ target_data = NULL;
+ patch_data = NULL;
+
+ if (argc > 4) {
+ usage();
+ return -1;
+ }
+
+ for (size_t i = 0; i < argc; i++) {
+ char *opt = argv[i];
+ g_auto(GStrv) tokens = g_strsplit(opt, "=", 2);
+ if (g_strcmp0(tokens[0], "use_hwaddr") == 0) {
+ if (!qemu_plugin_bool_parse(tokens[0], tokens[1], &use_hwaddr)) {
+ fprintf(stderr,
+ "Failed to parse boolean argument use_hwaddr\n");
+ return -1;
+ }
+ } else if (g_strcmp0(tokens[0], "target") == 0) {
+ target_data = str_to_bytes(tokens[1]);
+ if (!target_data) {
+ fprintf(stderr,
+ "Failed to parse target bytes.\n");
+ return -1;
+ }
+ } else if (g_strcmp0(tokens[0], "patch") == 0) {
+ patch_data = str_to_bytes(tokens[1]);
+ if (!patch_data) {
+ fprintf(stderr, "Failed to parse patch bytes.\n");
+ return -1;
+ }
+ } else {
+ fprintf(stderr, "Unknown argument: %s\n", tokens[0]);
+ usage();
+ return -1;
+ }
+ }
+
+ if (!target_data) {
+ fprintf(stderr, "target argument is required\n");
+ usage();
+ return -1;
+ }
+
+ if (!patch_data) {
+ fprintf(stderr, "patch argument is required\n");
+ usage();
+ return -1;
+ }
+
+ if (target_data->len != patch_data->len) {
+ fprintf(stderr, "Target and patch data must be the same length\n");
+ return -1;
+ }
+
+ qemu_plugin_register_vcpu_tb_trans_cb(id, vcpu_tb_trans_cb);
+
+ return 0;
+}
diff --git a/tests/tcg/x86_64/Makefile.softmmu-target b/tests/tcg/x86_64/Makefile.softmmu-target
index ef6bcb4..3e30ca9 100644
--- a/tests/tcg/x86_64/Makefile.softmmu-target
+++ b/tests/tcg/x86_64/Makefile.softmmu-target
@@ -1,13 +1,11 @@
#
-# x86 system tests
-#
-# This currently builds only for i386. The common C code is built
-# with standard compiler flags however so we can support both by
-# adding additional boot files for x86_64.
+# x86_64 system tests
#
-I386_SYSTEM_SRC=$(SRC_PATH)/tests/tcg/i386/system
X64_SYSTEM_SRC=$(SRC_PATH)/tests/tcg/x86_64/system
+X64_SYSTEM_TESTS=$(patsubst $(X64_SYSTEM_SRC)/%.c, %, $(wildcard $(X64_SYSTEM_SRC)/*.c))
+
+VPATH+=$(X64_SYSTEM_SRC)
# These objects provide the basic boot code and helper functions for all tests
CRT_OBJS=boot.o
@@ -18,7 +16,7 @@ LDFLAGS=-Wl,-T$(LINK_SCRIPT) -Wl,-melf_x86_64
CFLAGS+=-nostdlib -ggdb -O0 $(MINILIB_INC)
LDFLAGS+=-static -nostdlib $(CRT_OBJS) $(MINILIB_OBJS) -lgcc
-TESTS+=$(MULTIARCH_TESTS)
+TESTS+=$(MULTIARCH_TESTS) $(X64_SYSTEM_TESTS)
EXTRA_RUNS+=$(MULTIARCH_RUNS)
# building head blobs
@@ -35,3 +33,12 @@ memory: CFLAGS+=-DCHECK_UNALIGNED=1
# Running
QEMU_OPTS+=-device isa-debugcon,chardev=output -device isa-debug-exit,iobase=0xf4,iosize=0x4 -kernel
+
+ifeq ($(CONFIG_PLUGIN),y)
+run-plugin-patch-target-with-libpatch.so: \
+ PLUGIN_ARGS=$(COMMA)target=ffc0$(COMMA)patch=9090$(COMMA)use_hwaddr=true
+run-plugin-patch-target-with-libpatch.so: \
+ CHECK_PLUGIN_OUTPUT_COMMAND=$(X64_SYSTEM_SRC)/validate-patch.py $@.out
+run-plugin-patch-target-with-libpatch.so: patch-target libpatch.so
+EXTRA_RUNS+=run-plugin-patch-target-with-libpatch.so
+endif
diff --git a/tests/tcg/x86_64/system/patch-target.c b/tests/tcg/x86_64/system/patch-target.c
new file mode 100644
index 0000000..8c2b6f4
--- /dev/null
+++ b/tests/tcg/x86_64/system/patch-target.c
@@ -0,0 +1,22 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * This test target increments a value 100 times. The patcher converts the
+ * inc instruction to a nop, so it only increments the value once.
+ *
+ */
+#include <minilib.h>
+
+int main(void)
+{
+ ml_printf("Running test...\n");
+ unsigned int x = 0;
+ for (int i = 0; i < 100; i++) {
+ asm volatile (
+ "inc %[x]"
+ : [x] "+a" (x)
+ );
+ }
+ ml_printf("Value: %d\n", x);
+ return 0;
+}
diff --git a/tests/tcg/x86_64/system/validate-patch.py b/tests/tcg/x86_64/system/validate-patch.py
new file mode 100755
index 0000000..700950e
--- /dev/null
+++ b/tests/tcg/x86_64/system/validate-patch.py
@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+#
+# validate-patch.py: check the patch applies
+#
+# This program takes two inputs:
+# - the plugin output
+# - the binary output
+#
+# Copyright (C) 2024
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+import sys
+from argparse import ArgumentParser
+
+def main() -> None:
+ """
+ Process the arguments, injest the program and plugin out and
+ verify they match up and report if they do not.
+ """
+ parser = ArgumentParser(description="Validate patch")
+ parser.add_argument('test_output',
+ help="The output from the test itself")
+ parser.add_argument('plugin_output',
+ help="The output from plugin")
+ args = parser.parse_args()
+
+ with open(args.test_output, 'r') as f:
+ test_data = f.read()
+ with open(args.plugin_output, 'r') as f:
+ plugin_data = f.read()
+ if "Value: 1" in test_data:
+ sys.exit(0)
+ else:
+ sys.exit(1)
+
+if __name__ == "__main__":
+ main()
+
generated by cgit v1.1 at 2025-07-03 16:11:55 +0000