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+/*
+ * QTest
+ *
+ * Copyright IBM, Corp. 2012
+ * Copyright Red Hat, Inc. 2012
+ * Copyright SUSE LINUX Products GmbH 2013
+ *
+ * Authors:
+ * Anthony Liguori <aliguori@us.ibm.com>
+ * Paolo Bonzini <pbonzini@redhat.com>
+ * Andreas Färber <afaerber@suse.de>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+#ifndef LIBQTEST_H
+#define LIBQTEST_H
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <sys/types.h>
+#include "qapi/qmp/qdict.h"
+#include "glib-compat.h"
+
+typedef struct QTestState QTestState;
+
+extern QTestState *global_qtest;
+
+/**
+ * qtest_init:
+ * @extra_args: other arguments to pass to QEMU.
+ *
+ * Returns: #QTestState instance.
+ */
+QTestState *qtest_init(const char *extra_args);
+
+/**
+ * qtest_quit:
+ * @s: #QTestState instance to operate on.
+ *
+ * Shut down the QEMU process associated to @s.
+ */
+void qtest_quit(QTestState *s);
+
+/**
+ * qtest_qmp_discard_response:
+ * @s: #QTestState instance to operate on.
+ * @fmt...: QMP message to send to qemu
+ *
+ * Sends a QMP message to QEMU and consumes the response.
+ */
+void qtest_qmp_discard_response(QTestState *s, const char *fmt, ...);
+
+/**
+ * qtest_qmp:
+ * @s: #QTestState instance to operate on.
+ * @fmt...: QMP message to send to qemu
+ *
+ * Sends a QMP message to QEMU and returns the response.
+ */
+QDict *qtest_qmp(QTestState *s, const char *fmt, ...);
+
+/**
+ * qtest_async_qmp:
+ * @s: #QTestState instance to operate on.
+ * @fmt...: QMP message to send to qemu
+ *
+ * Sends a QMP message to QEMU and leaves the response in the stream.
+ */
+void qtest_async_qmp(QTestState *s, const char *fmt, ...);
+
+/**
+ * qtest_qmpv_discard_response:
+ * @s: #QTestState instance to operate on.
+ * @fmt: QMP message to send to QEMU
+ * @ap: QMP message arguments
+ *
+ * Sends a QMP message to QEMU and consumes the response.
+ */
+void qtest_qmpv_discard_response(QTestState *s, const char *fmt, va_list ap);
+
+/**
+ * qtest_qmpv:
+ * @s: #QTestState instance to operate on.
+ * @fmt: QMP message to send to QEMU
+ * @ap: QMP message arguments
+ *
+ * Sends a QMP message to QEMU and returns the response.
+ */
+QDict *qtest_qmpv(QTestState *s, const char *fmt, va_list ap);
+
+/**
+ * qtest_async_qmpv:
+ * @s: #QTestState instance to operate on.
+ * @fmt: QMP message to send to QEMU
+ * @ap: QMP message arguments
+ *
+ * Sends a QMP message to QEMU and leaves the response in the stream.
+ */
+void qtest_async_qmpv(QTestState *s, const char *fmt, va_list ap);
+
+/**
+ * qtest_receive:
+ * @s: #QTestState instance to operate on.
+ *
+ * Reads a QMP message from QEMU and returns the response.
+ */
+QDict *qtest_qmp_receive(QTestState *s);
+
+/**
+ * qtest_qmp_eventwait:
+ * @s: #QTestState instance to operate on.
+ * @s: #event event to wait for.
+ *
+ * Continuosly polls for QMP responses until it receives the desired event.
+ */
+void qtest_qmp_eventwait(QTestState *s, const char *event);
+
+/**
+ * qtest_get_irq:
+ * @s: #QTestState instance to operate on.
+ * @num: Interrupt to observe.
+ *
+ * Returns: The level of the @num interrupt.
+ */
+bool qtest_get_irq(QTestState *s, int num);
+
+/**
+ * qtest_irq_intercept_in:
+ * @s: #QTestState instance to operate on.
+ * @string: QOM path of a device.
+ *
+ * Associate qtest irqs with the GPIO-in pins of the device
+ * whose path is specified by @string.
+ */
+void qtest_irq_intercept_in(QTestState *s, const char *string);
+
+/**
+ * qtest_irq_intercept_out:
+ * @s: #QTestState instance to operate on.
+ * @string: QOM path of a device.
+ *
+ * Associate qtest irqs with the GPIO-out pins of the device
+ * whose path is specified by @string.
+ */
+void qtest_irq_intercept_out(QTestState *s, const char *string);
+
+/**
+ * qtest_outb:
+ * @s: #QTestState instance to operate on.
+ * @addr: I/O port to write to.
+ * @value: Value being written.
+ *
+ * Write an 8-bit value to an I/O port.
+ */
+void qtest_outb(QTestState *s, uint16_t addr, uint8_t value);
+
+/**
+ * qtest_outw:
+ * @s: #QTestState instance to operate on.
+ * @addr: I/O port to write to.
+ * @value: Value being written.
+ *
+ * Write a 16-bit value to an I/O port.
+ */
+void qtest_outw(QTestState *s, uint16_t addr, uint16_t value);
+
+/**
+ * qtest_outl:
+ * @s: #QTestState instance to operate on.
+ * @addr: I/O port to write to.
+ * @value: Value being written.
+ *
+ * Write a 32-bit value to an I/O port.
+ */
+void qtest_outl(QTestState *s, uint16_t addr, uint32_t value);
+
+/**
+ * qtest_inb:
+ * @s: #QTestState instance to operate on.
+ * @addr: I/O port to read from.
+ *
+ * Returns an 8-bit value from an I/O port.
+ */
+uint8_t qtest_inb(QTestState *s, uint16_t addr);
+
+/**
+ * qtest_inw:
+ * @s: #QTestState instance to operate on.
+ * @addr: I/O port to read from.
+ *
+ * Returns a 16-bit value from an I/O port.
+ */
+uint16_t qtest_inw(QTestState *s, uint16_t addr);
+
+/**
+ * qtest_inl:
+ * @s: #QTestState instance to operate on.
+ * @addr: I/O port to read from.
+ *
+ * Returns a 32-bit value from an I/O port.
+ */
+uint32_t qtest_inl(QTestState *s, uint16_t addr);
+
+/**
+ * qtest_writeb:
+ * @s: #QTestState instance to operate on.
+ * @addr: Guest address to write to.
+ * @value: Value being written.
+ *
+ * Writes an 8-bit value to memory.
+ */
+void qtest_writeb(QTestState *s, uint64_t addr, uint8_t value);
+
+/**
+ * qtest_writew:
+ * @s: #QTestState instance to operate on.
+ * @addr: Guest address to write to.
+ * @value: Value being written.
+ *
+ * Writes a 16-bit value to memory.
+ */
+void qtest_writew(QTestState *s, uint64_t addr, uint16_t value);
+
+/**
+ * qtest_writel:
+ * @s: #QTestState instance to operate on.
+ * @addr: Guest address to write to.
+ * @value: Value being written.
+ *
+ * Writes a 32-bit value to memory.
+ */
+void qtest_writel(QTestState *s, uint64_t addr, uint32_t value);
+
+/**
+ * qtest_writeq:
+ * @s: #QTestState instance to operate on.
+ * @addr: Guest address to write to.
+ * @value: Value being written.
+ *
+ * Writes a 64-bit value to memory.
+ */
+void qtest_writeq(QTestState *s, uint64_t addr, uint64_t value);
+
+/**
+ * qtest_readb:
+ * @s: #QTestState instance to operate on.
+ * @addr: Guest address to read from.
+ *
+ * Reads an 8-bit value from memory.
+ *
+ * Returns: Value read.
+ */
+uint8_t qtest_readb(QTestState *s, uint64_t addr);
+
+/**
+ * qtest_readw:
+ * @s: #QTestState instance to operate on.
+ * @addr: Guest address to read from.
+ *
+ * Reads a 16-bit value from memory.
+ *
+ * Returns: Value read.
+ */
+uint16_t qtest_readw(QTestState *s, uint64_t addr);
+
+/**
+ * qtest_readl:
+ * @s: #QTestState instance to operate on.
+ * @addr: Guest address to read from.
+ *
+ * Reads a 32-bit value from memory.
+ *
+ * Returns: Value read.
+ */
+uint32_t qtest_readl(QTestState *s, uint64_t addr);
+
+/**
+ * qtest_readq:
+ * @s: #QTestState instance to operate on.
+ * @addr: Guest address to read from.
+ *
+ * Reads a 64-bit value from memory.
+ *
+ * Returns: Value read.
+ */
+uint64_t qtest_readq(QTestState *s, uint64_t addr);
+
+/**
+ * qtest_memread:
+ * @s: #QTestState instance to operate on.
+ * @addr: Guest address to read from.
+ * @data: Pointer to where memory contents will be stored.
+ * @size: Number of bytes to read.
+ *
+ * Read guest memory into a buffer.
+ */
+void qtest_memread(QTestState *s, uint64_t addr, void *data, size_t size);
+
+/**
+ * qtest_bufread:
+ * @s: #QTestState instance to operate on.
+ * @addr: Guest address to read from.
+ * @data: Pointer to where memory contents will be stored.
+ * @size: Number of bytes to read.
+ *
+ * Read guest memory into a buffer and receive using a base64 encoding.
+ */
+void qtest_bufread(QTestState *s, uint64_t addr, void *data, size_t size);
+
+/**
+ * qtest_memwrite:
+ * @s: #QTestState instance to operate on.
+ * @addr: Guest address to write to.
+ * @data: Pointer to the bytes that will be written to guest memory.
+ * @size: Number of bytes to write.
+ *
+ * Write a buffer to guest memory.
+ */
+void qtest_memwrite(QTestState *s, uint64_t addr, const void *data, size_t size);
+
+/**
+ * qtest_bufwrite:
+ * @s: #QTestState instance to operate on.
+ * @addr: Guest address to write to.
+ * @data: Pointer to the bytes that will be written to guest memory.
+ * @size: Number of bytes to write.
+ *
+ * Write a buffer to guest memory and transmit using a base64 encoding.
+ */
+void qtest_bufwrite(QTestState *s, uint64_t addr,
+ const void *data, size_t size);
+
+/**
+ * qtest_memset:
+ * @s: #QTestState instance to operate on.
+ * @addr: Guest address to write to.
+ * @patt: Byte pattern to fill the guest memory region with.
+ * @size: Number of bytes to write.
+ *
+ * Write a pattern to guest memory.
+ */
+void qtest_memset(QTestState *s, uint64_t addr, uint8_t patt, size_t size);
+
+/**
+ * qtest_clock_step_next:
+ * @s: #QTestState instance to operate on.
+ *
+ * Advance the QEMU_CLOCK_VIRTUAL to the next deadline.
+ *
+ * Returns: The current value of the QEMU_CLOCK_VIRTUAL in nanoseconds.
+ */
+int64_t qtest_clock_step_next(QTestState *s);
+
+/**
+ * qtest_clock_step:
+ * @s: QTestState instance to operate on.
+ * @step: Number of nanoseconds to advance the clock by.
+ *
+ * Advance the QEMU_CLOCK_VIRTUAL by @step nanoseconds.
+ *
+ * Returns: The current value of the QEMU_CLOCK_VIRTUAL in nanoseconds.
+ */
+int64_t qtest_clock_step(QTestState *s, int64_t step);
+
+/**
+ * qtest_clock_set:
+ * @s: QTestState instance to operate on.
+ * @val: Nanoseconds value to advance the clock to.
+ *
+ * Advance the QEMU_CLOCK_VIRTUAL to @val nanoseconds since the VM was launched.
+ *
+ * Returns: The current value of the QEMU_CLOCK_VIRTUAL in nanoseconds.
+ */
+int64_t qtest_clock_set(QTestState *s, int64_t val);
+
+/**
+ * qtest_get_arch:
+ *
+ * Returns: The architecture for the QEMU executable under test.
+ */
+const char *qtest_get_arch(void);
+
+/**
+ * qtest_add_func:
+ * @str: Test case path.
+ * @fn: Test case function
+ *
+ * Add a GTester testcase with the given name and function.
+ * The path is prefixed with the architecture under test, as
+ * returned by qtest_get_arch().
+ */
+void qtest_add_func(const char *str, void (*fn));
+
+/**
+ * qtest_add_data_func:
+ * @str: Test case path.
+ * @data: Test case data
+ * @fn: Test case function
+ *
+ * Add a GTester testcase with the given name, data and function.
+ * The path is prefixed with the architecture under test, as
+ * returned by qtest_get_arch().
+ */
+void qtest_add_data_func(const char *str, const void *data, void (*fn));
+
+/**
+ * qtest_add:
+ * @testpath: Test case path
+ * @Fixture: Fixture type
+ * @tdata: Test case data
+ * @fsetup: Test case setup function
+ * @ftest: Test case function
+ * @fteardown: Test case teardown function
+ *
+ * Add a GTester testcase with the given name, data and functions.
+ * The path is prefixed with the architecture under test, as
+ * returned by qtest_get_arch().
+ */
+#define qtest_add(testpath, Fixture, tdata, fsetup, ftest, fteardown) \
+ do { \
+ char *path = g_strdup_printf("/%s/%s", qtest_get_arch(), testpath); \
+ g_test_add(path, Fixture, tdata, fsetup, ftest, fteardown); \
+ g_free(path); \
+ } while (0)
+
+/**
+ * qtest_start:
+ * @args: other arguments to pass to QEMU
+ *
+ * Start QEMU and assign the resulting #QTestState to a global variable.
+ * The global variable is used by "shortcut" functions documented below.
+ *
+ * Returns: #QTestState instance.
+ */
+static inline QTestState *qtest_start(const char *args)
+{
+ global_qtest = qtest_init(args);
+ return global_qtest;
+}
+
+/**
+ * qtest_end:
+ *
+ * Shut down the QEMU process started by qtest_start().
+ */
+static inline void qtest_end(void)
+{
+ qtest_quit(global_qtest);
+ global_qtest = NULL;
+}
+
+/**
+ * qmp:
+ * @fmt...: QMP message to send to qemu
+ *
+ * Sends a QMP message to QEMU and returns the response.
+ */
+QDict *qmp(const char *fmt, ...);
+
+/**
+ * qmp_async:
+ * @fmt...: QMP message to send to qemu
+ *
+ * Sends a QMP message to QEMU and leaves the response in the stream.
+ */
+void qmp_async(const char *fmt, ...);
+
+/**
+ * qmp_discard_response:
+ * @fmt...: QMP message to send to qemu
+ *
+ * Sends a QMP message to QEMU and consumes the response.
+ */
+void qmp_discard_response(const char *fmt, ...);
+
+/**
+ * qmp_receive:
+ *
+ * Reads a QMP message from QEMU and returns the response.
+ */
+static inline QDict *qmp_receive(void)
+{
+ return qtest_qmp_receive(global_qtest);
+}
+
+/**
+ * qmp_eventwait:
+ * @s: #event event to wait for.
+ *
+ * Continuosly polls for QMP responses until it receives the desired event.
+ */
+static inline void qmp_eventwait(const char *event)
+{
+ return qtest_qmp_eventwait(global_qtest, event);
+}
+
+/**
+ * get_irq:
+ * @num: Interrupt to observe.
+ *
+ * Returns: The level of the @num interrupt.
+ */
+static inline bool get_irq(int num)
+{
+ return qtest_get_irq(global_qtest, num);
+}
+
+/**
+ * irq_intercept_in:
+ * @string: QOM path of a device.
+ *
+ * Associate qtest irqs with the GPIO-in pins of the device
+ * whose path is specified by @string.
+ */
+static inline void irq_intercept_in(const char *string)
+{
+ qtest_irq_intercept_in(global_qtest, string);
+}
+
+/**
+ * qtest_irq_intercept_out:
+ * @string: QOM path of a device.
+ *
+ * Associate qtest irqs with the GPIO-out pins of the device
+ * whose path is specified by @string.
+ */
+static inline void irq_intercept_out(const char *string)
+{
+ qtest_irq_intercept_out(global_qtest, string);
+}
+
+/**
+ * outb:
+ * @addr: I/O port to write to.
+ * @value: Value being written.
+ *
+ * Write an 8-bit value to an I/O port.
+ */
+static inline void outb(uint16_t addr, uint8_t value)
+{
+ qtest_outb(global_qtest, addr, value);
+}
+
+/**
+ * outw:
+ * @addr: I/O port to write to.
+ * @value: Value being written.
+ *
+ * Write a 16-bit value to an I/O port.
+ */
+static inline void outw(uint16_t addr, uint16_t value)
+{
+ qtest_outw(global_qtest, addr, value);
+}
+
+/**
+ * outl:
+ * @addr: I/O port to write to.
+ * @value: Value being written.
+ *
+ * Write a 32-bit value to an I/O port.
+ */
+static inline void outl(uint16_t addr, uint32_t value)
+{
+ qtest_outl(global_qtest, addr, value);
+}
+
+/**
+ * inb:
+ * @addr: I/O port to read from.
+ *
+ * Reads an 8-bit value from an I/O port.
+ *
+ * Returns: Value read.
+ */
+static inline uint8_t inb(uint16_t addr)
+{
+ return qtest_inb(global_qtest, addr);
+}
+
+/**
+ * inw:
+ * @addr: I/O port to read from.
+ *
+ * Reads a 16-bit value from an I/O port.
+ *
+ * Returns: Value read.
+ */
+static inline uint16_t inw(uint16_t addr)
+{
+ return qtest_inw(global_qtest, addr);
+}
+
+/**
+ * inl:
+ * @addr: I/O port to read from.
+ *
+ * Reads a 32-bit value from an I/O port.
+ *
+ * Returns: Value read.
+ */
+static inline uint32_t inl(uint16_t addr)
+{
+ return qtest_inl(global_qtest, addr);
+}
+
+/**
+ * writeb:
+ * @addr: Guest address to write to.
+ * @value: Value being written.
+ *
+ * Writes an 8-bit value to guest memory.
+ */
+static inline void writeb(uint64_t addr, uint8_t value)
+{
+ qtest_writeb(global_qtest, addr, value);
+}
+
+/**
+ * writew:
+ * @addr: Guest address to write to.
+ * @value: Value being written.
+ *
+ * Writes a 16-bit value to guest memory.
+ */
+static inline void writew(uint64_t addr, uint16_t value)
+{
+ qtest_writew(global_qtest, addr, value);
+}
+
+/**
+ * writel:
+ * @addr: Guest address to write to.
+ * @value: Value being written.
+ *
+ * Writes a 32-bit value to guest memory.
+ */
+static inline void writel(uint64_t addr, uint32_t value)
+{
+ qtest_writel(global_qtest, addr, value);
+}
+
+/**
+ * writeq:
+ * @addr: Guest address to write to.
+ * @value: Value being written.
+ *
+ * Writes a 64-bit value to guest memory.
+ */
+static inline void writeq(uint64_t addr, uint64_t value)
+{
+ qtest_writeq(global_qtest, addr, value);
+}
+
+/**
+ * readb:
+ * @addr: Guest address to read from.
+ *
+ * Reads an 8-bit value from guest memory.
+ *
+ * Returns: Value read.
+ */
+static inline uint8_t readb(uint64_t addr)
+{
+ return qtest_readb(global_qtest, addr);
+}
+
+/**
+ * readw:
+ * @addr: Guest address to read from.
+ *
+ * Reads a 16-bit value from guest memory.
+ *
+ * Returns: Value read.
+ */
+static inline uint16_t readw(uint64_t addr)
+{
+ return qtest_readw(global_qtest, addr);
+}
+
+/**
+ * readl:
+ * @addr: Guest address to read from.
+ *
+ * Reads a 32-bit value from guest memory.
+ *
+ * Returns: Value read.
+ */
+static inline uint32_t readl(uint64_t addr)
+{
+ return qtest_readl(global_qtest, addr);
+}
+
+/**
+ * readq:
+ * @addr: Guest address to read from.
+ *
+ * Reads a 64-bit value from guest memory.
+ *
+ * Returns: Value read.
+ */
+static inline uint64_t readq(uint64_t addr)
+{
+ return qtest_readq(global_qtest, addr);
+}
+
+/**
+ * memread:
+ * @addr: Guest address to read from.
+ * @data: Pointer to where memory contents will be stored.
+ * @size: Number of bytes to read.
+ *
+ * Read guest memory into a buffer.
+ */
+static inline void memread(uint64_t addr, void *data, size_t size)
+{
+ qtest_memread(global_qtest, addr, data, size);
+}
+
+/**
+ * bufread:
+ * @addr: Guest address to read from.
+ * @data: Pointer to where memory contents will be stored.
+ * @size: Number of bytes to read.
+ *
+ * Read guest memory into a buffer, receive using a base64 encoding.
+ */
+static inline void bufread(uint64_t addr, void *data, size_t size)
+{
+ qtest_bufread(global_qtest, addr, data, size);
+}
+
+/**
+ * memwrite:
+ * @addr: Guest address to write to.
+ * @data: Pointer to the bytes that will be written to guest memory.
+ * @size: Number of bytes to write.
+ *
+ * Write a buffer to guest memory.
+ */
+static inline void memwrite(uint64_t addr, const void *data, size_t size)
+{
+ qtest_memwrite(global_qtest, addr, data, size);
+}
+
+/**
+ * bufwrite:
+ * @addr: Guest address to write to.
+ * @data: Pointer to the bytes that will be written to guest memory.
+ * @size: Number of bytes to write.
+ *
+ * Write a buffer to guest memory, transmit using a base64 encoding.
+ */
+static inline void bufwrite(uint64_t addr, const void *data, size_t size)
+{
+ qtest_bufwrite(global_qtest, addr, data, size);
+}
+
+/**
+ * qmemset:
+ * @addr: Guest address to write to.
+ * @patt: Byte pattern to fill the guest memory region with.
+ * @size: Number of bytes to write.
+ *
+ * Write a pattern to guest memory.
+ */
+static inline void qmemset(uint64_t addr, uint8_t patt, size_t size)
+{
+ qtest_memset(global_qtest, addr, patt, size);
+}
+
+/**
+ * clock_step_next:
+ *
+ * Advance the QEMU_CLOCK_VIRTUAL to the next deadline.
+ *
+ * Returns: The current value of the QEMU_CLOCK_VIRTUAL in nanoseconds.
+ */
+static inline int64_t clock_step_next(void)
+{
+ return qtest_clock_step_next(global_qtest);
+}
+
+/**
+ * clock_step:
+ * @step: Number of nanoseconds to advance the clock by.
+ *
+ * Advance the QEMU_CLOCK_VIRTUAL by @step nanoseconds.
+ *
+ * Returns: The current value of the QEMU_CLOCK_VIRTUAL in nanoseconds.
+ */
+static inline int64_t clock_step(int64_t step)
+{
+ return qtest_clock_step(global_qtest, step);
+}
+
+/**
+ * clock_set:
+ * @val: Nanoseconds value to advance the clock to.
+ *
+ * Advance the QEMU_CLOCK_VIRTUAL to @val nanoseconds since the VM was launched.
+ *
+ * Returns: The current value of the QEMU_CLOCK_VIRTUAL in nanoseconds.
+ */
+static inline int64_t clock_set(int64_t val)
+{
+ return qtest_clock_set(global_qtest, val);
+}
+
+/**
+ * qtest_big_endian:
+ *
+ * Returns: True if the architecture under test has a big endian configuration.
+ */
+bool qtest_big_endian(void);
+
+#endif