Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 602 insertions, 0 deletions

diff --git a/qemu/include/qemu-common.h b/qemu/include/qemu-common.h
new file mode 100644
index 000000000..fb3da6ca2
--- /dev/null
+++ b/qemu/include/qemu-common.h
@@ -0,0 +1,602 @@
+
+/* Common header file that is included by all of QEMU.
+ *
+ * This file is supposed to be included only by .c files. No header file should
+ * depend on qemu-common.h, as this would easily lead to circular header
+ * dependencies.
+ *
+ * If a header file uses a definition from qemu-common.h, that definition
+ * must be moved to a separate header file, and the header that uses it
+ * must include that header.
+ */
+#ifndef QEMU_COMMON_H
+#define QEMU_COMMON_H
+
+#include "qemu/compiler.h"
+#include "config-host.h"
+#include "qemu/typedefs.h"
+#include "qemu/fprintf-fn.h"
+
+#if defined(__arm__) || defined(__sparc__) || defined(__mips__) || defined(__hppa__) || defined(__ia64__)
+#define WORDS_ALIGNED
+#endif
+
+#define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)
+
+/* we put basic includes here to avoid repeating them in device drivers */
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <string.h>
+#include <strings.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <time.h>
+#include <ctype.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <assert.h>
+#include <signal.h>
+#include "glib-compat.h"
+#include "qemu/option.h"
+
+#ifdef _WIN32
+#include "sysemu/os-win32.h"
+#endif
+
+#ifdef CONFIG_POSIX
+#include "sysemu/os-posix.h"
+#endif
+
+#ifndef O_LARGEFILE
+#define O_LARGEFILE 0
+#endif
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+#ifndef ENOMEDIUM
+#define ENOMEDIUM ENODEV
+#endif
+#if !defined(ENOTSUP)
+#define ENOTSUP 4096
+#endif
+#if !defined(ECANCELED)
+#define ECANCELED 4097
+#endif
+#if !defined(EMEDIUMTYPE)
+#define EMEDIUMTYPE 4098
+#endif
+#ifndef TIME_MAX
+#define TIME_MAX LONG_MAX
+#endif
+
+/* HOST_LONG_BITS is the size of a native pointer in bits. */
+#if UINTPTR_MAX == UINT32_MAX
+# define HOST_LONG_BITS 32
+#elif UINTPTR_MAX == UINT64_MAX
+# define HOST_LONG_BITS 64
+#else
+# error Unknown pointer size
+#endif
+
+#ifdef _WIN32
+#define fsync _commit
+#if !defined(lseek)
+# define lseek _lseeki64
+#endif
+int qemu_ftruncate64(int, int64_t);
+#if !defined(ftruncate)
+# define ftruncate qemu_ftruncate64
+#endif
+
+static inline char *realpath(const char *path, char *resolved_path)
+{
+    _fullpath(resolved_path, path, _MAX_PATH);
+    return resolved_path;
+}
+#endif
+
+void cpu_ticks_init(void);
+
+/* icount */
+void configure_icount(QemuOpts *opts, Error **errp);
+extern int use_icount;
+extern int icount_align_option;
+/* drift information for info jit command */
+extern int64_t max_delay;
+extern int64_t max_advance;
+void dump_drift_info(FILE *f, fprintf_function cpu_fprintf);
+
+#include "qemu/osdep.h"
+#include "qemu/bswap.h"
+
+/* FIXME: Remove NEED_CPU_H.  */
+#ifdef NEED_CPU_H
+#include "cpu.h"
+#endif /* !defined(NEED_CPU_H) */
+
+/* main function, renamed */
+#if defined(CONFIG_COCOA)
+int qemu_main(int argc, char **argv, char **envp);
+#endif
+
+void qemu_get_timedate(struct tm *tm, int offset);
+int qemu_timedate_diff(struct tm *tm);
+
+/**
+ * is_help_option:
+ * @s: string to test
+ *
+ * Check whether @s is one of the standard strings which indicate
+ * that the user is asking for a list of the valid values for a
+ * command option like -cpu or -M. The current accepted strings
+ * are 'help' and '?'. '?' is deprecated (it is a shell wildcard
+ * which makes it annoying to use in a reliable way) but provided
+ * for backwards compatibility.
+ *
+ * Returns: true if @s is a request for a list.
+ */
+static inline bool is_help_option(const char *s)
+{
+    return !strcmp(s, "?") || !strcmp(s, "help");
+}
+
+/* util/cutils.c */
+/**
+ * pstrcpy:
+ * @buf: buffer to copy string into
+ * @buf_size: size of @buf in bytes
+ * @str: string to copy
+ *
+ * Copy @str into @buf, including the trailing NUL, but do not
+ * write more than @buf_size bytes. The resulting buffer is
+ * always NUL terminated (even if the source string was too long).
+ * If @buf_size is zero or negative then no bytes are copied.
+ *
+ * This function is similar to strncpy(), but avoids two of that
+ * function's problems:
+ *  * if @str fits in the buffer, pstrcpy() does not zero-fill the
+ *    remaining space at the end of @buf
+ *  * if @str is too long, pstrcpy() will copy the first @buf_size-1
+ *    bytes and then add a NUL
+ */
+void pstrcpy(char *buf, int buf_size, const char *str);
+/**
+ * strpadcpy:
+ * @buf: buffer to copy string into
+ * @buf_size: size of @buf in bytes
+ * @str: string to copy
+ * @pad: character to pad the remainder of @buf with
+ *
+ * Copy @str into @buf (but *not* its trailing NUL!), and then pad the
+ * rest of the buffer with the @pad character. If @str is too large
+ * for the buffer then it is truncated, so that @buf contains the
+ * first @buf_size characters of @str, with no terminator.
+ */
+void strpadcpy(char *buf, int buf_size, const char *str, char pad);
+/**
+ * pstrcat:
+ * @buf: buffer containing existing string
+ * @buf_size: size of @buf in bytes
+ * @s: string to concatenate to @buf
+ *
+ * Append a copy of @s to the string already in @buf, but do not
+ * allow the buffer to overflow. If the existing contents of @buf
+ * plus @str would total more than @buf_size bytes, then write
+ * as much of @str as will fit followed by a NUL terminator.
+ *
+ * @buf must already contain a NUL-terminated string, or the
+ * behaviour is undefined.
+ *
+ * Returns: @buf.
+ */
+char *pstrcat(char *buf, int buf_size, const char *s);
+/**
+ * strstart:
+ * @str: string to test
+ * @val: prefix string to look for
+ * @ptr: NULL, or pointer to be written to indicate start of
+ *       the remainder of the string
+ *
+ * Test whether @str starts with the prefix @val.
+ * If it does (including the degenerate case where @str and @val
+ * are equal) then return true. If @ptr is not NULL then a
+ * pointer to the first character following the prefix is written
+ * to it. If @val is not a prefix of @str then return false (and
+ * @ptr is not written to).
+ *
+ * Returns: true if @str starts with prefix @val, false otherwise.
+ */
+int strstart(const char *str, const char *val, const char **ptr);
+/**
+ * stristart:
+ * @str: string to test
+ * @val: prefix string to look for
+ * @ptr: NULL, or pointer to be written to indicate start of
+ *       the remainder of the string
+ *
+ * Test whether @str starts with the case-insensitive prefix @val.
+ * This function behaves identically to strstart(), except that the
+ * comparison is made after calling qemu_toupper() on each pair of
+ * characters.
+ *
+ * Returns: true if @str starts with case-insensitive prefix @val,
+ *          false otherwise.
+ */
+int stristart(const char *str, const char *val, const char **ptr);
+/**
+ * qemu_strnlen:
+ * @s: string
+ * @max_len: maximum number of bytes in @s to scan
+ *
+ * Return the length of the string @s, like strlen(), but do not
+ * examine more than @max_len bytes of the memory pointed to by @s.
+ * If no NUL terminator is found within @max_len bytes, then return
+ * @max_len instead.
+ *
+ * This function has the same behaviour as the POSIX strnlen()
+ * function.
+ *
+ * Returns: length of @s in bytes, or @max_len, whichever is smaller.
+ */
+int qemu_strnlen(const char *s, int max_len);
+/**
+ * qemu_strsep:
+ * @input: pointer to string to parse
+ * @delim: string containing delimiter characters to search for
+ *
+ * Locate the first occurrence of any character in @delim within
+ * the string referenced by @input, and replace it with a NUL.
+ * The location of the next character after the delimiter character
+ * is stored into @input.
+ * If the end of the string was reached without finding a delimiter
+ * character, then NULL is stored into @input.
+ * If @input points to a NULL pointer on entry, return NULL.
+ * The return value is always the original value of *@input (and
+ * so now points to a NUL-terminated string corresponding to the
+ * part of the input up to the first delimiter).
+ *
+ * This function has the same behaviour as the BSD strsep() function.
+ *
+ * Returns: the pointer originally in @input.
+ */
+char *qemu_strsep(char **input, const char *delim);
+time_t mktimegm(struct tm *tm);
+int qemu_fls(int i);
+int qemu_fdatasync(int fd);
+int fcntl_setfl(int fd, int flag);
+int qemu_parse_fd(const char *param);
+
+int parse_uint(const char *s, unsigned long long *value, char **endptr,
+               int base);
+int parse_uint_full(const char *s, unsigned long long *value, int base);
+
+/*
+ * strtosz() suffixes used to specify the default treatment of an
+ * argument passed to strtosz() without an explicit suffix.
+ * These should be defined using upper case characters in the range
+ * A-Z, as strtosz() will use qemu_toupper() on the given argument
+ * prior to comparison.
+ */
+#define STRTOSZ_DEFSUFFIX_EB	'E'
+#define STRTOSZ_DEFSUFFIX_PB	'P'
+#define STRTOSZ_DEFSUFFIX_TB	'T'
+#define STRTOSZ_DEFSUFFIX_GB	'G'
+#define STRTOSZ_DEFSUFFIX_MB	'M'
+#define STRTOSZ_DEFSUFFIX_KB	'K'
+#define STRTOSZ_DEFSUFFIX_B	'B'
+int64_t strtosz(const char *nptr, char **end);
+int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix);
+int64_t strtosz_suffix_unit(const char *nptr, char **end,
+                            const char default_suffix, int64_t unit);
+#define K_BYTE     (1ULL << 10)
+#define M_BYTE     (1ULL << 20)
+#define G_BYTE     (1ULL << 30)
+#define T_BYTE     (1ULL << 40)
+#define P_BYTE     (1ULL << 50)
+#define E_BYTE     (1ULL << 60)
+
+/* used to print char* safely */
+#define STR_OR_NULL(str) ((str) ? (str) : "null")
+
+/* id.c */
+bool id_wellformed(const char *id);
+
+/* path.c */
+void init_paths(const char *prefix);
+const char *path(const char *pathname);
+
+#define qemu_isalnum(c)		isalnum((unsigned char)(c))
+#define qemu_isalpha(c)		isalpha((unsigned char)(c))
+#define qemu_iscntrl(c)		iscntrl((unsigned char)(c))
+#define qemu_isdigit(c)		isdigit((unsigned char)(c))
+#define qemu_isgraph(c)		isgraph((unsigned char)(c))
+#define qemu_islower(c)		islower((unsigned char)(c))
+#define qemu_isprint(c)		isprint((unsigned char)(c))
+#define qemu_ispunct(c)		ispunct((unsigned char)(c))
+#define qemu_isspace(c)		isspace((unsigned char)(c))
+#define qemu_isupper(c)		isupper((unsigned char)(c))
+#define qemu_isxdigit(c)	isxdigit((unsigned char)(c))
+#define qemu_tolower(c)		tolower((unsigned char)(c))
+#define qemu_toupper(c)		toupper((unsigned char)(c))
+#define qemu_isascii(c)		isascii((unsigned char)(c))
+#define qemu_toascii(c)		toascii((unsigned char)(c))
+
+void *qemu_oom_check(void *ptr);
+
+ssize_t qemu_write_full(int fd, const void *buf, size_t count)
+    QEMU_WARN_UNUSED_RESULT;
+
+#ifndef _WIN32
+int qemu_pipe(int pipefd[2]);
+/* like openpty() but also makes it raw; return master fd */
+int qemu_openpty_raw(int *aslave, char *pty_name);
+#endif
+
+#ifdef _WIN32
+/* MinGW needs type casts for the 'buf' and 'optval' arguments. */
+#define qemu_getsockopt(sockfd, level, optname, optval, optlen) \
+    getsockopt(sockfd, level, optname, (void *)optval, optlen)
+#define qemu_setsockopt(sockfd, level, optname, optval, optlen) \
+    setsockopt(sockfd, level, optname, (const void *)optval, optlen)
+#define qemu_recv(sockfd, buf, len, flags) recv(sockfd, (void *)buf, len, flags)
+#define qemu_sendto(sockfd, buf, len, flags, destaddr, addrlen) \
+    sendto(sockfd, (const void *)buf, len, flags, destaddr, addrlen)
+#else
+#define qemu_getsockopt(sockfd, level, optname, optval, optlen) \
+    getsockopt(sockfd, level, optname, optval, optlen)
+#define qemu_setsockopt(sockfd, level, optname, optval, optlen) \
+    setsockopt(sockfd, level, optname, optval, optlen)
+#define qemu_recv(sockfd, buf, len, flags) recv(sockfd, buf, len, flags)
+#define qemu_sendto(sockfd, buf, len, flags, destaddr, addrlen) \
+    sendto(sockfd, buf, len, flags, destaddr, addrlen)
+#endif
+
+/* Error handling.  */
+
+void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
+
+struct ParallelIOArg {
+    void *buffer;
+    int count;
+};
+
+typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size);
+
+typedef uint64_t pcibus_t;
+
+typedef struct PCIHostDeviceAddress {
+    unsigned int domain;
+    unsigned int bus;
+    unsigned int slot;
+    unsigned int function;
+} PCIHostDeviceAddress;
+
+void tcg_exec_init(unsigned long tb_size);
+bool tcg_enabled(void);
+
+void cpu_exec_init_all(void);
+
+/* CPU save/load.  */
+#ifdef CPU_SAVE_VERSION
+void cpu_save(QEMUFile *f, void *opaque);
+int cpu_load(QEMUFile *f, void *opaque, int version_id);
+#endif
+
+/* Unblock cpu */
+void qemu_cpu_kick_self(void);
+
+/* work queue */
+struct qemu_work_item {
+    struct qemu_work_item *next;
+    void (*func)(void *data);
+    void *data;
+    int done;
+    bool free;
+};
+
+
+/**
+ * Sends a (part of) iovec down a socket, yielding when the socket is full, or
+ * Receives data into a (part of) iovec from a socket,
+ * yielding when there is no data in the socket.
+ * The same interface as qemu_sendv_recvv(), with added yielding.
+ * XXX should mark these as coroutine_fn
+ */
+ssize_t qemu_co_sendv_recvv(int sockfd, struct iovec *iov, unsigned iov_cnt,
+                            size_t offset, size_t bytes, bool do_send);
+#define qemu_co_recvv(sockfd, iov, iov_cnt, offset, bytes) \
+  qemu_co_sendv_recvv(sockfd, iov, iov_cnt, offset, bytes, false)
+#define qemu_co_sendv(sockfd, iov, iov_cnt, offset, bytes) \
+  qemu_co_sendv_recvv(sockfd, iov, iov_cnt, offset, bytes, true)
+
+/**
+ * The same as above, but with just a single buffer
+ */
+ssize_t qemu_co_send_recv(int sockfd, void *buf, size_t bytes, bool do_send);
+#define qemu_co_recv(sockfd, buf, bytes) \
+  qemu_co_send_recv(sockfd, buf, bytes, false)
+#define qemu_co_send(sockfd, buf, bytes) \
+  qemu_co_send_recv(sockfd, buf, bytes, true)
+
+typedef struct QEMUIOVector {
+    struct iovec *iov;
+    int niov;
+    int nalloc;
+    size_t size;
+} QEMUIOVector;
+
+void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint);
+void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov);
+void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len);
+void qemu_iovec_concat(QEMUIOVector *dst,
+                       QEMUIOVector *src, size_t soffset, size_t sbytes);
+size_t qemu_iovec_concat_iov(QEMUIOVector *dst,
+                             struct iovec *src_iov, unsigned int src_cnt,
+                             size_t soffset, size_t sbytes);
+bool qemu_iovec_is_zero(QEMUIOVector *qiov);
+void qemu_iovec_destroy(QEMUIOVector *qiov);
+void qemu_iovec_reset(QEMUIOVector *qiov);
+size_t qemu_iovec_to_buf(QEMUIOVector *qiov, size_t offset,
+                         void *buf, size_t bytes);
+size_t qemu_iovec_from_buf(QEMUIOVector *qiov, size_t offset,
+                           const void *buf, size_t bytes);
+size_t qemu_iovec_memset(QEMUIOVector *qiov, size_t offset,
+                         int fillc, size_t bytes);
+ssize_t qemu_iovec_compare(QEMUIOVector *a, QEMUIOVector *b);
+void qemu_iovec_clone(QEMUIOVector *dest, const QEMUIOVector *src, void *buf);
+void qemu_iovec_discard_back(QEMUIOVector *qiov, size_t bytes);
+
+bool buffer_is_zero(const void *buf, size_t len);
+
+void qemu_progress_init(int enabled, float min_skip);
+void qemu_progress_end(void);
+void qemu_progress_print(float delta, int max);
+const char *qemu_get_vm_name(void);
+
+#define QEMU_FILE_TYPE_BIOS   0
+#define QEMU_FILE_TYPE_KEYMAP 1
+char *qemu_find_file(int type, const char *name);
+
+/* OS specific functions */
+void os_setup_early_signal_handling(void);
+char *os_find_datadir(void);
+void os_parse_cmd_args(int index, const char *optarg);
+
+/* Convert a byte between binary and BCD.  */
+static inline uint8_t to_bcd(uint8_t val)
+{
+    return ((val / 10) << 4) | (val % 10);
+}
+
+static inline uint8_t from_bcd(uint8_t val)
+{
+    return ((val >> 4) * 10) + (val & 0x0f);
+}
+
+/* compute with 96 bit intermediate result: (a*b)/c */
+#ifdef CONFIG_INT128
+static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
+{
+    return (__int128_t)a * b / c;
+}
+#else
+static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
+{
+    union {
+        uint64_t ll;
+        struct {
+#ifdef HOST_WORDS_BIGENDIAN
+            uint32_t high, low;
+#else
+            uint32_t low, high;
+#endif
+        } l;
+    } u, res;
+    uint64_t rl, rh;
+
+    u.ll = a;
+    rl = (uint64_t)u.l.low * (uint64_t)b;
+    rh = (uint64_t)u.l.high * (uint64_t)b;
+    rh += (rl >> 32);
+    res.l.high = rh / c;
+    res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
+    return res.ll;
+}
+#endif
+
+/* Round number down to multiple */
+#define QEMU_ALIGN_DOWN(n, m) ((n) / (m) * (m))
+
+/* Round number up to multiple */
+#define QEMU_ALIGN_UP(n, m) QEMU_ALIGN_DOWN((n) + (m) - 1, (m))
+
+static inline bool is_power_of_2(uint64_t value)
+{
+    if (!value) {
+        return 0;
+    }
+
+    return !(value & (value - 1));
+}
+
+/* round down to the nearest power of 2*/
+int64_t pow2floor(int64_t value);
+
+/* round up to the nearest power of 2 (0 if overflow) */
+uint64_t pow2ceil(uint64_t value);
+
+#include "qemu/module.h"
+
+/*
+ * Implementation of ULEB128 (http://en.wikipedia.org/wiki/LEB128)
+ * Input is limited to 14-bit numbers
+ */
+
+int uleb128_encode_small(uint8_t *out, uint32_t n);
+int uleb128_decode_small(const uint8_t *in, uint32_t *n);
+
+/* unicode.c */
+int mod_utf8_codepoint(const char *s, size_t n, char **end);
+
+/*
+ * Hexdump a buffer to a file. An optional string prefix is added to every line
+ */
+
+void qemu_hexdump(const char *buf, FILE *fp, const char *prefix, size_t size);
+
+/* vector definitions */
+#ifdef __ALTIVEC__
+#include <altivec.h>
+/* The altivec.h header says we're allowed to undef these for
+ * C++ compatibility.  Here we don't care about C++, but we
+ * undef them anyway to avoid namespace pollution.
+ */
+#undef vector
+#undef pixel
+#undef bool
+#define VECTYPE        __vector unsigned char
+#define SPLAT(p)       vec_splat(vec_ld(0, p), 0)
+#define ALL_EQ(v1, v2) vec_all_eq(v1, v2)
+#define VEC_OR(v1, v2) ((v1) | (v2))
+/* altivec.h may redefine the bool macro as vector type.
+ * Reset it to POSIX semantics. */
+#define bool _Bool
+#elif defined __SSE2__
+#include <emmintrin.h>
+#define VECTYPE        __m128i
+#define SPLAT(p)       _mm_set1_epi8(*(p))
+#define ALL_EQ(v1, v2) (_mm_movemask_epi8(_mm_cmpeq_epi8(v1, v2)) == 0xFFFF)
+#define VEC_OR(v1, v2) (_mm_or_si128(v1, v2))
+#else
+#define VECTYPE        unsigned long
+#define SPLAT(p)       (*(p) * (~0UL / 255))
+#define ALL_EQ(v1, v2) ((v1) == (v2))
+#define VEC_OR(v1, v2) ((v1) | (v2))
+#endif
+
+#define BUFFER_FIND_NONZERO_OFFSET_UNROLL_FACTOR 8
+static inline bool
+can_use_buffer_find_nonzero_offset(const void *buf, size_t len)
+{
+    return (len % (BUFFER_FIND_NONZERO_OFFSET_UNROLL_FACTOR
+                   * sizeof(VECTYPE)) == 0
+            && ((uintptr_t) buf) % sizeof(VECTYPE) == 0);
+}
+size_t buffer_find_nonzero_offset(const void *buf, size_t len);
+
+/*
+ * helper to parse debug environment variables
+ */
+int parse_debug_env(const char *name, int max, int initial);
+
+const char *qemu_ether_ntoa(const MACAddr *mac);
+
+#endif