diff options
Diffstat (limited to 'include/qemu')
33 files changed, 1019 insertions, 140 deletions
diff --git a/include/qemu/accel.h b/include/qemu/accel.h index fbd3d89..d3638c7 100644 --- a/include/qemu/accel.h +++ b/include/qemu/accel.h @@ -26,39 +26,8 @@ #include "qom/object.h" #include "exec/hwaddr.h" -struct AccelState { - /*< private >*/ - Object parent_obj; -}; - -typedef struct AccelClass { - /*< private >*/ - ObjectClass parent_class; - /*< public >*/ - - const char *name; - int (*init_machine)(MachineState *ms); - bool (*cpu_common_realize)(CPUState *cpu, Error **errp); - void (*cpu_common_unrealize)(CPUState *cpu); - - /* system related hooks */ - void (*setup_post)(MachineState *ms, AccelState *accel); - bool (*has_memory)(MachineState *ms, AddressSpace *as, - hwaddr start_addr, hwaddr size); - - /* gdbstub related hooks */ - int (*gdbstub_supported_sstep_flags)(void); - - bool *allowed; - /* - * Array of global properties that would be applied when specific - * accelerator is chosen. It works like MachineClass.compat_props - * but it's for accelerators not machines. Accelerator-provided - * global properties may be overridden by machine-type - * compat_props or user-provided global properties. - */ - GPtrArray *compat_props; -} AccelClass; +typedef struct AccelState AccelState; +typedef struct AccelClass AccelClass; #define TYPE_ACCEL "accel" @@ -83,6 +52,8 @@ int accel_init_machine(AccelState *accel, MachineState *ms); /* Called just before os_setup_post (ie just before drop OS privs) */ void accel_setup_post(MachineState *ms); +void accel_pre_resume(MachineState *ms, bool step_pending); + /** * accel_cpu_instance_init: * @cpu: The CPU that needs to do accel-specific object initializations. diff --git a/include/qemu/audio-capture.h b/include/qemu/audio-capture.h new file mode 100644 index 0000000..a07412d --- /dev/null +++ b/include/qemu/audio-capture.h @@ -0,0 +1,43 @@ +/* + * QEMU Audio subsystem + * + * SPDX-License-Identifier: MIT + */ +#ifndef QEMU_AUDIO_CAPTURE_H +#define QEMU_AUDIO_CAPTURE_H + +#include "audio.h" + +typedef struct CaptureVoiceOut CaptureVoiceOut; + +typedef enum { + AUD_CNOTIFY_ENABLE, + AUD_CNOTIFY_DISABLE +} audcnotification_e; + +struct audio_capture_ops { + void (*notify) (void *opaque, audcnotification_e cmd); + void (*capture) (void *opaque, const void *buf, int size); + void (*destroy) (void *opaque); +}; + +struct capture_ops { + void (*info) (void *opaque); + void (*destroy) (void *opaque); +}; + +typedef struct CaptureState { + void *opaque; + struct capture_ops ops; + QLIST_ENTRY(CaptureState) entries; +} CaptureState; + +CaptureVoiceOut *AUD_add_capture( + AudioBackend *be, + struct audsettings *as, + struct audio_capture_ops *ops, + void *opaque + ); +void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque); + +#endif /* QEMU_AUDIO_CAPTURE_H */ diff --git a/include/qemu/audio.h b/include/qemu/audio.h new file mode 100644 index 0000000..c56af89 --- /dev/null +++ b/include/qemu/audio.h @@ -0,0 +1,150 @@ +/* + * QEMU Audio subsystem header + * + * Copyright (c) 2003-2005 Vassili Karpov (malc) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef QEMU_AUDIO_H +#define QEMU_AUDIO_H + +#include "qemu/queue.h" +#include "qapi/qapi-types-audio.h" +#include "hw/qdev-properties-system.h" +#ifdef CONFIG_GIO +#include "gio/gio.h" +#endif + +typedef void (*audio_callback_fn) (void *opaque, int avail); + +typedef struct audsettings { + int freq; + int nchannels; + AudioFormat fmt; + int endianness; +} audsettings; + +typedef struct SWVoiceOut SWVoiceOut; +typedef struct SWVoiceIn SWVoiceIn; + +struct AudioBackendClass { + ObjectClass parent_class; +}; + +typedef struct AudioBackend AudioBackend; + +typedef struct QEMUAudioTimeStamp { + uint64_t old_ts; +} QEMUAudioTimeStamp; + +bool AUD_backend_check(AudioBackend **be, Error **errp); + +SWVoiceOut *AUD_open_out ( + AudioBackend *be, + SWVoiceOut *sw, + const char *name, + void *callback_opaque, + audio_callback_fn callback_fn, + struct audsettings *settings + ); + +void AUD_close_out (AudioBackend *be, SWVoiceOut *sw); +size_t AUD_write (SWVoiceOut *sw, void *pcm_buf, size_t size); +int AUD_get_buffer_size_out (SWVoiceOut *sw); +void AUD_set_active_out(SWVoiceOut *sw, bool on); +bool AUD_is_active_out(SWVoiceOut *sw); + +void AUD_init_time_stamp_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts); +uint64_t AUD_get_elapsed_usec_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts); + +#define AUDIO_MAX_CHANNELS 16 +typedef struct Volume { + bool mute; + int channels; + uint8_t vol[AUDIO_MAX_CHANNELS]; +} Volume; + +void AUD_set_volume_out(SWVoiceOut *sw, Volume *vol); +void AUD_set_volume_in(SWVoiceIn *sw, Volume *vol); + +static inline void +AUD_set_volume_out_lr(SWVoiceOut *sw, bool mut, uint8_t lvol, uint8_t rvol) { + AUD_set_volume_out(sw, &(Volume) { + .mute = mut, .channels = 2, .vol = { lvol, rvol } + }); +} + +static inline void +AUD_set_volume_in_lr(SWVoiceIn *sw, bool mut, uint8_t lvol, uint8_t rvol) { + AUD_set_volume_in(sw, &(Volume) { + .mute = mut, .channels = 2, .vol = { lvol, rvol } + }); +} + +SWVoiceIn *AUD_open_in( + AudioBackend *be, + SWVoiceIn *sw, + const char *name, + void *callback_opaque, + audio_callback_fn callback_fn, + struct audsettings *settings + ); + +void AUD_close_in(AudioBackend *be, SWVoiceIn *sw); +size_t AUD_read (SWVoiceIn *sw, void *pcm_buf, size_t size); +void AUD_set_active_in(SWVoiceIn *sw, bool on); +bool AUD_is_active_in(SWVoiceIn *sw); + +void AUD_init_time_stamp_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts); +uint64_t AUD_get_elapsed_usec_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts); + +void audio_cleanup(void); + +typedef struct st_sample st_sample; + +void audio_sample_to_uint64(const st_sample *sample, int pos, + uint64_t *left, uint64_t *right); +void audio_sample_from_uint64(st_sample *sample, int pos, + uint64_t left, uint64_t right); + +void audio_add_audiodev(Audiodev *audio); +void audio_add_default_audiodev(Audiodev *dev, Error **errp); +void audio_parse_option(const char *opt); +void audio_create_default_audiodevs(void); +void audio_init_audiodevs(void); +void audio_help(void); + +AudioBackend *audio_be_by_name(const char *name, Error **errp); +AudioBackend *audio_get_default_audio_be(Error **errp); +const char *audio_be_get_id(AudioBackend *be); +#ifdef CONFIG_GIO +bool audio_be_set_dbus_server(AudioBackend *be, + GDBusObjectManagerServer *server, + bool p2p, + Error **errp); +#endif + +#define DEFINE_AUDIO_PROPERTIES(_s, _f) \ + DEFINE_PROP_AUDIODEV("audiodev", _s, _f) + +#define TYPE_AUDIO_BACKEND "audio-backend" +OBJECT_DECLARE_TYPE(AudioBackend, AudioBackendClass, AUDIO_BACKEND) + +#endif /* QEMU_AUDIO_H */ diff --git a/include/qemu/bswap.h b/include/qemu/bswap.h index 9a11764..39ba640 100644 --- a/include/qemu/bswap.h +++ b/include/qemu/bswap.h @@ -1,6 +1,8 @@ #ifndef BSWAP_H #define BSWAP_H +#include "qemu/target-info.h" + #undef bswap16 #define bswap16(_x) __builtin_bswap16(_x) #undef bswap32 @@ -432,4 +434,75 @@ DO_STN_LDN_P(be) #undef le_bswaps #undef be_bswaps + +/* Return ld{word}_{le,be}_p following target endianness. */ +#define LOAD_IMPL(word, args...) \ +do { \ + if (target_big_endian()) { \ + return glue(glue(ld, word), _be_p)(args); \ + } else { \ + return glue(glue(ld, word), _le_p)(args); \ + } \ +} while (0) + +static inline int lduw_p(const void *ptr) +{ + LOAD_IMPL(uw, ptr); +} + +static inline int ldsw_p(const void *ptr) +{ + LOAD_IMPL(sw, ptr); +} + +static inline int ldl_p(const void *ptr) +{ + LOAD_IMPL(l, ptr); +} + +static inline uint64_t ldq_p(const void *ptr) +{ + LOAD_IMPL(q, ptr); +} + +static inline uint64_t ldn_p(const void *ptr, int sz) +{ + LOAD_IMPL(n, ptr, sz); +} + +#undef LOAD_IMPL + +/* Call st{word}_{le,be}_p following target endianness. */ +#define STORE_IMPL(word, args...) \ +do { \ + if (target_big_endian()) { \ + glue(glue(st, word), _be_p)(args); \ + } else { \ + glue(glue(st, word), _le_p)(args); \ + } \ +} while (0) + + +static inline void stw_p(void *ptr, uint16_t v) +{ + STORE_IMPL(w, ptr, v); +} + +static inline void stl_p(void *ptr, uint32_t v) +{ + STORE_IMPL(l, ptr, v); +} + +static inline void stq_p(void *ptr, uint64_t v) +{ + STORE_IMPL(q, ptr, v); +} + +static inline void stn_p(void *ptr, int sz, uint64_t v) +{ + STORE_IMPL(n, ptr, sz, v); +} + +#undef STORE_IMPL + #endif /* BSWAP_H */ diff --git a/include/qemu/cacheflush.h b/include/qemu/cacheflush.h index ae20bcd..76eb55d 100644 --- a/include/qemu/cacheflush.h +++ b/include/qemu/cacheflush.h @@ -26,6 +26,13 @@ static inline void flush_idcache_range(uintptr_t rx, uintptr_t rw, size_t len) /* icache is coherent and does not require flushing. */ } +#elif defined(EMSCRIPTEN) + +static inline void flush_idcache_range(uintptr_t rx, uintptr_t rw, size_t len) +{ + /* Wasm doesn't have executable region of memory. */ +} + #else void flush_idcache_range(uintptr_t rx, uintptr_t rw, size_t len); diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h index 496dac5..1c2b673 100644 --- a/include/qemu/compiler.h +++ b/include/qemu/compiler.h @@ -182,19 +182,6 @@ #define QEMU_DISABLE_CFI #endif -/* - * Apple clang version 14 has a bug in its __builtin_subcll(); define - * BUILTIN_SUBCLL_BROKEN for the offending versions so we can avoid it. - * When a version of Apple clang which has this bug fixed is released - * we can add an upper bound to this check. - * See https://gitlab.com/qemu-project/qemu/-/issues/1631 - * and https://gitlab.com/qemu-project/qemu/-/issues/1659 for details. - * The bug never made it into any upstream LLVM releases, only Apple ones. - */ -#if defined(__apple_build_version__) && __clang_major__ >= 14 -#define BUILTIN_SUBCLL_BROKEN -#endif - #if __has_attribute(annotate) #define QEMU_ANNOTATE(x) __attribute__((annotate(x))) #else @@ -208,6 +195,26 @@ #endif /* + * Disable -ftrivial-auto-var-init on a local variable. + * + * Use this in cases where there a method in the device I/O path (or other + * important hot paths), that has large variables on the stack. A rule of + * thumb is that "large" means a method with 4kb data in the local stack + * frame. Any variables which are KB in size, should be annotated with this + * attribute, to pre-emptively eliminate any potential overhead from the + * compiler's implicit zero'ing of memory. + * + * Given that this turns off a security hardening feature, when using this + * to flag variables, it is important that the code is double-checked to + * ensure there is no possible use of uninitialized data in the method. + */ +#if __has_attribute(uninitialized) +# define QEMU_UNINITIALIZED __attribute__((uninitialized)) +#else +# define QEMU_UNINITIALIZED +#endif + +/* * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html * * TSA is available since clang 3.6-ish. diff --git a/include/qemu/cpuid.h b/include/qemu/cpuid.h index b111615..de7a9005 100644 --- a/include/qemu/cpuid.h +++ b/include/qemu/cpuid.h @@ -68,6 +68,9 @@ #ifndef bit_AVX512VBMI2 #define bit_AVX512VBMI2 (1 << 6) #endif +#ifndef bit_GFNI +#define bit_GFNI (1 << 8) +#endif /* Leaf 0x80000001, %ecx */ #ifndef bit_LZCNT diff --git a/include/qemu/exit-with-parent.h b/include/qemu/exit-with-parent.h new file mode 100644 index 0000000..c00b863 --- /dev/null +++ b/include/qemu/exit-with-parent.h @@ -0,0 +1,57 @@ +/* + * SPDX-License-Identifier: BSD-3-Clause + * Originally derived from nbdkit common/utils/exit-with-parent.h + * Copyright Red Hat + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_EXIT_WITH_PARENT_H +#define NBDKIT_EXIT_WITH_PARENT_H + +/* Test if the feature is available on the platform. */ +static inline bool can_exit_with_parent(void) +{ +#if defined(__linux__) || defined(__FreeBSD__) || defined(__APPLE__) + return true; +#else + return false; +#endif +} + +/* + * --exit-with-parent: kill the current process if the parent exits. + * This may return -1 on error. + * + * Note this will abort on platforms where can_exit_with_parent() + * returned false. + */ +extern int set_exit_with_parent(void); + +#endif /* NBDKIT_EXIT_WITH_PARENT_H */ diff --git a/include/qemu/futex.h b/include/qemu/futex.h index 91ae889..607613e 100644 --- a/include/qemu/futex.h +++ b/include/qemu/futex.h @@ -1,5 +1,5 @@ /* - * Wrappers around Linux futex syscall + * Wrappers around Linux futex syscall and similar * * Copyright Red Hat, Inc. 2017 * @@ -11,17 +11,35 @@ * */ +/* + * Note that a wake-up can also be caused by common futex usage patterns in + * unrelated code that happened to have previously used the futex word's + * memory location (e.g., typical futex-based implementations of Pthreads + * mutexes can cause this under some conditions). Therefore, qemu_futex_wait() + * callers should always conservatively assume that it is a spurious wake-up, + * and use the futex word's value (i.e., the user-space synchronization scheme) + * to decide whether to continue to block or not. + */ + #ifndef QEMU_FUTEX_H #define QEMU_FUTEX_H +#define HAVE_FUTEX + +#ifdef CONFIG_LINUX #include <sys/syscall.h> #include <linux/futex.h> #define qemu_futex(...) syscall(__NR_futex, __VA_ARGS__) -static inline void qemu_futex_wake(void *f, int n) +static inline void qemu_futex_wake_all(void *f) { - qemu_futex(f, FUTEX_WAKE, n, NULL, NULL, 0); + qemu_futex(f, FUTEX_WAKE, INT_MAX, NULL, NULL, 0); +} + +static inline void qemu_futex_wake_single(void *f) +{ + qemu_futex(f, FUTEX_WAKE, 1, NULL, NULL, 0); } static inline void qemu_futex_wait(void *f, unsigned val) @@ -37,5 +55,25 @@ static inline void qemu_futex_wait(void *f, unsigned val) } } } +#elif defined(CONFIG_WIN32) +#include <synchapi.h> + +static inline void qemu_futex_wake_all(void *f) +{ + WakeByAddressAll(f); +} + +static inline void qemu_futex_wake_single(void *f) +{ + WakeByAddressSingle(f); +} + +static inline void qemu_futex_wait(void *f, unsigned val) +{ + WaitOnAddress(f, &val, sizeof(val), INFINITE); +} +#else +#undef HAVE_FUTEX +#endif #endif /* QEMU_FUTEX_H */ diff --git a/include/qemu/host-pci-mmio.h b/include/qemu/host-pci-mmio.h new file mode 100644 index 0000000..a8ed993 --- /dev/null +++ b/include/qemu/host-pci-mmio.h @@ -0,0 +1,136 @@ +/* + * API for host PCI MMIO accesses (e.g. Linux VFIO BARs) + * + * Copyright 2025 IBM Corp. + * Author(s): Farhan Ali <alifm@linux.ibm.com> + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef HOST_PCI_MMIO_H +#define HOST_PCI_MMIO_H + +#include "qemu/bswap.h" +#include "qemu/s390x_pci_mmio.h" + +static inline uint8_t host_pci_ldub_p(const void *ioaddr) +{ + uint8_t ret = 0; +#ifdef __s390x__ + ret = s390x_pci_mmio_read_8(ioaddr); +#else + ret = ldub_p(ioaddr); +#endif + + return ret; +} + +static inline uint16_t host_pci_lduw_le_p(const void *ioaddr) +{ + uint16_t ret = 0; +#ifdef __s390x__ + ret = le16_to_cpu(s390x_pci_mmio_read_16(ioaddr)); +#else + ret = lduw_le_p(ioaddr); +#endif + + return ret; +} + +static inline uint32_t host_pci_ldl_le_p(const void *ioaddr) +{ + uint32_t ret = 0; +#ifdef __s390x__ + ret = le32_to_cpu(s390x_pci_mmio_read_32(ioaddr)); +#else + ret = ldl_le_p(ioaddr); +#endif + + return ret; +} + +static inline uint64_t host_pci_ldq_le_p(const void *ioaddr) +{ + uint64_t ret = 0; +#ifdef __s390x__ + ret = le64_to_cpu(s390x_pci_mmio_read_64(ioaddr)); +#else + ret = ldq_le_p(ioaddr); +#endif + + return ret; +} + +static inline void host_pci_stb_p(void *ioaddr, uint8_t val) +{ +#ifdef __s390x__ + s390x_pci_mmio_write_8(ioaddr, val); +#else + stb_p(ioaddr, val); +#endif +} + +static inline void host_pci_stw_le_p(void *ioaddr, uint16_t val) +{ +#ifdef __s390x__ + s390x_pci_mmio_write_16(ioaddr, cpu_to_le16(val)); +#else + stw_le_p(ioaddr, val); +#endif +} + +static inline void host_pci_stl_le_p(void *ioaddr, uint32_t val) +{ +#ifdef __s390x__ + s390x_pci_mmio_write_32(ioaddr, cpu_to_le32(val)); +#else + stl_le_p(ioaddr, val); +#endif +} + +static inline void host_pci_stq_le_p(void *ioaddr, uint64_t val) +{ +#ifdef __s390x__ + s390x_pci_mmio_write_64(ioaddr, cpu_to_le64(val)); +#else + stq_le_p(ioaddr, val); +#endif +} + +static inline uint64_t host_pci_ldn_le_p(const void *ioaddr, int sz) +{ + switch (sz) { + case 1: + return host_pci_ldub_p(ioaddr); + case 2: + return host_pci_lduw_le_p(ioaddr); + case 4: + return host_pci_ldl_le_p(ioaddr); + case 8: + return host_pci_ldq_le_p(ioaddr); + default: + g_assert_not_reached(); + } +} + +static inline void host_pci_stn_le_p(void *ioaddr, int sz, uint64_t v) +{ + switch (sz) { + case 1: + host_pci_stb_p(ioaddr, v); + break; + case 2: + host_pci_stw_le_p(ioaddr, v); + break; + case 4: + host_pci_stl_le_p(ioaddr, v); + break; + case 8: + host_pci_stq_le_p(ioaddr, v); + break; + default: + g_assert_not_reached(); + } +} + +#endif diff --git a/include/qemu/host-utils.h b/include/qemu/host-utils.h index 4d28fa2..dd55858 100644 --- a/include/qemu/host-utils.h +++ b/include/qemu/host-utils.h @@ -677,7 +677,7 @@ static inline uint64_t uadd64_carry(uint64_t x, uint64_t y, bool *pcarry) */ static inline uint64_t usub64_borrow(uint64_t x, uint64_t y, bool *pborrow) { -#if __has_builtin(__builtin_subcll) && !defined(BUILTIN_SUBCLL_BROKEN) +#if __has_builtin(__builtin_subcll) unsigned long long b = *pborrow; x = __builtin_subcll(x, y, b, &b); *pborrow = b & 1; diff --git a/include/qemu/job.h b/include/qemu/job.h index a5a0415..ead3157 100644 --- a/include/qemu/job.h +++ b/include/qemu/job.h @@ -263,7 +263,7 @@ struct JobDriver { * This callback will not be invoked if the job has already failed. * If it fails, abort and then clean will be called. */ - int (*prepare)(Job *job); + int GRAPH_UNLOCKED_PTR (*prepare)(Job *job); /** * If the callback is not NULL, it will be invoked when all the jobs @@ -283,7 +283,7 @@ struct JobDriver { * All jobs will complete with a call to either .commit() or .abort() but * never both. */ - void (*abort)(Job *job); + void GRAPH_UNLOCKED_PTR (*abort)(Job *job); /** * If the callback is not NULL, it will be invoked after a call to either diff --git a/include/qemu/lockcnt.h b/include/qemu/lockcnt.h index f4b62a3..5a2800e 100644 --- a/include/qemu/lockcnt.h +++ b/include/qemu/lockcnt.h @@ -17,7 +17,7 @@ typedef struct QemuLockCnt QemuLockCnt; struct QemuLockCnt { -#ifndef CONFIG_LINUX +#ifndef HAVE_FUTEX QemuMutex mutex; #endif unsigned count; diff --git a/include/qemu/log-for-trace.h b/include/qemu/log-for-trace.h index d47c9cd..f3a8791 100644 --- a/include/qemu/log-for-trace.h +++ b/include/qemu/log-for-trace.h @@ -19,9 +19,9 @@ #define QEMU_LOG_FOR_TRACE_H /* Private global variable, don't use */ -extern int qemu_loglevel; +extern unsigned qemu_loglevel; -#define LOG_TRACE (1 << 15) +#define LOG_TRACE (1u << 15) /* Returns true if a bit is set in the current loglevel mask */ static inline bool qemu_loglevel_mask(int mask) diff --git a/include/qemu/log.h b/include/qemu/log.h index 60da703..7effba4 100644 --- a/include/qemu/log.h +++ b/include/qemu/log.h @@ -14,30 +14,30 @@ bool qemu_log_enabled(void); /* Returns true if qemu_log() will write somewhere other than stderr. */ bool qemu_log_separate(void); -#define CPU_LOG_TB_OUT_ASM (1 << 0) -#define CPU_LOG_TB_IN_ASM (1 << 1) -#define CPU_LOG_TB_OP (1 << 2) -#define CPU_LOG_TB_OP_OPT (1 << 3) -#define CPU_LOG_INT (1 << 4) -#define CPU_LOG_EXEC (1 << 5) -#define CPU_LOG_PCALL (1 << 6) -#define CPU_LOG_TB_CPU (1 << 8) -#define CPU_LOG_RESET (1 << 9) -#define LOG_UNIMP (1 << 10) -#define LOG_GUEST_ERROR (1 << 11) -#define CPU_LOG_MMU (1 << 12) -#define CPU_LOG_TB_NOCHAIN (1 << 13) -#define CPU_LOG_PAGE (1 << 14) +#define CPU_LOG_TB_OUT_ASM (1u << 0) +#define CPU_LOG_TB_IN_ASM (1u << 1) +#define CPU_LOG_TB_OP (1u << 2) +#define CPU_LOG_TB_OP_OPT (1u << 3) +#define CPU_LOG_INT (1u << 4) +#define CPU_LOG_EXEC (1u << 5) +#define CPU_LOG_PCALL (1u << 6) +#define CPU_LOG_TB_CPU (1u << 8) +#define CPU_LOG_RESET (1u << 9) +#define LOG_UNIMP (1u << 10) +#define LOG_GUEST_ERROR (1u << 11) +#define CPU_LOG_MMU (1u << 12) +#define CPU_LOG_TB_NOCHAIN (1u << 13) +#define CPU_LOG_PAGE (1u << 14) /* LOG_TRACE (1 << 15) is defined in log-for-trace.h */ -#define CPU_LOG_TB_OP_IND (1 << 16) -#define CPU_LOG_TB_FPU (1 << 17) -#define CPU_LOG_PLUGIN (1 << 18) +#define CPU_LOG_TB_OP_IND (1u << 16) +#define CPU_LOG_TB_FPU (1u << 17) +#define CPU_LOG_PLUGIN (1u << 18) /* LOG_STRACE is used for user-mode strace logging. */ -#define LOG_STRACE (1 << 19) -#define LOG_PER_THREAD (1 << 20) -#define CPU_LOG_TB_VPU (1 << 21) -#define LOG_TB_OP_PLUGIN (1 << 22) -#define LOG_INVALID_MEM (1 << 23) +#define LOG_STRACE (1u << 19) +#define LOG_PER_THREAD (1u << 20) +#define CPU_LOG_TB_VPU (1u << 21) +#define LOG_TB_OP_PLUGIN (1u << 22) +#define LOG_INVALID_MEM (1u << 23) /* Lock/unlock output. */ @@ -84,6 +84,8 @@ typedef struct QEMULogItem { extern const QEMULogItem qemu_log_items[]; +ssize_t rust_fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream); + bool qemu_set_log(int log_flags, Error **errp); bool qemu_set_log_filename(const char *filename, Error **errp); bool qemu_set_log_filename_flags(const char *name, int flags, Error **errp); diff --git a/include/qemu/main-loop.h b/include/qemu/main-loop.h index 4e2436b..0d55c63 100644 --- a/include/qemu/main-loop.h +++ b/include/qemu/main-loop.h @@ -271,6 +271,24 @@ void rust_bql_mock_lock(void); bool bql_locked(void); /** + * mutex_is_bql: + * + * @mutex: the mutex pointer + * + * Returns whether the mutex is the BQL. + */ +bool mutex_is_bql(QemuMutex *mutex); + +/** + * bql_update_status: + * + * @locked: update status on whether the BQL is locked + * + * NOTE: this should normally only be invoked when the status changed. + */ +void bql_update_status(bool locked); + +/** * bql_block: Allow/deny releasing the BQL * * The Big QEMU Lock (BQL) is used to provide interior mutability to diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h index 4397a90..3cb45a1 100644 --- a/include/qemu/osdep.h +++ b/include/qemu/osdep.h @@ -8,7 +8,7 @@ * To avoid getting into possible circular include dependencies, this * file should not include any other QEMU headers, with the exceptions * of config-host.h, config-target.h, qemu/compiler.h, - * system/os-posix.h, system/os-win32.h, glib-compat.h and + * system/os-posix.h, system/os-win32.h, system/os-wasm.h, glib-compat.h and * qemu/typedefs.h, all of which are doing a similar job to this file * and are under similar constraints. * @@ -133,6 +133,20 @@ QEMU_EXTERN_C int daemon(int, int); #include <setjmp.h> #include <signal.h> +/* + * Avoid conflict with linux/arch/powerpc/include/uapi/asm/elf.h, included + * from <asm/sigcontext.h>, but we might as well do this unconditionally. + */ +#undef ELF_CLASS +#undef ELF_DATA +#undef ELF_ARCH + +/* + * Avoid conflict with Solaris FSCALE definition from <sys/param.h> header, + * but we might as well do this unconditionally. + */ +#undef FSCALE + #ifdef CONFIG_IOVEC #include <sys/uio.h> #endif @@ -164,10 +178,14 @@ QEMU_EXTERN_C int daemon(int, int); #include "system/os-win32.h" #endif -#ifdef CONFIG_POSIX +#if defined(CONFIG_POSIX) && !defined(EMSCRIPTEN) #include "system/os-posix.h" #endif +#if defined(EMSCRIPTEN) +#include "system/os-wasm.h" +#endif + #ifdef __cplusplus extern "C" { #endif @@ -549,7 +567,7 @@ int madvise(char *, size_t, int); #if defined(__linux__) && \ (defined(__x86_64__) || defined(__arm__) || defined(__aarch64__) \ - || defined(__powerpc64__)) + || defined(__powerpc64__) || defined(__riscv)) /* Use 2 MiB alignment so transparent hugepages can be used by KVM. Valgrind does not support alignments larger than 1 MiB, therefore we need special code which handles running on Valgrind. */ @@ -675,6 +693,16 @@ ssize_t qemu_write_full(int fd, const void *buf, size_t count) G_GNUC_WARN_UNUSED_RESULT; void qemu_set_cloexec(int fd); +bool qemu_set_blocking(int fd, bool block, Error **errp); + +/* + * Clear FD_CLOEXEC for a descriptor. + * + * The caller must guarantee that no other fork+exec's occur before the + * exec that is intended to inherit this descriptor, eg by suspending CPUs + * and blocking monitor commands. + */ +void qemu_clear_cloexec(int fd); /* Return a dynamically allocated directory path that is appropriate for storing * local state. diff --git a/include/qemu/plugin-event.h b/include/qemu/plugin-event.h index 7056d84..1100dae 100644 --- a/include/qemu/plugin-event.h +++ b/include/qemu/plugin-event.h @@ -20,6 +20,9 @@ enum qemu_plugin_event { QEMU_PLUGIN_EV_VCPU_SYSCALL_RET, QEMU_PLUGIN_EV_FLUSH, QEMU_PLUGIN_EV_ATEXIT, + QEMU_PLUGIN_EV_VCPU_INTERRUPT, + QEMU_PLUGIN_EV_VCPU_EXCEPTION, + QEMU_PLUGIN_EV_VCPU_HOSTCALL, QEMU_PLUGIN_EV_MAX, /* total number of plugin events we support */ }; diff --git a/include/qemu/plugin.h b/include/qemu/plugin.h index 9726a9e..cea0a68 100644 --- a/include/qemu/plugin.h +++ b/include/qemu/plugin.h @@ -59,6 +59,7 @@ union qemu_plugin_cb_sig { qemu_plugin_udata_cb_t udata; qemu_plugin_vcpu_simple_cb_t vcpu_simple; qemu_plugin_vcpu_udata_cb_t vcpu_udata; + qemu_plugin_vcpu_discon_cb_t vcpu_discon; qemu_plugin_vcpu_tb_trans_cb_t vcpu_tb_trans; qemu_plugin_vcpu_mem_cb_t vcpu_mem; qemu_plugin_vcpu_syscall_cb_t vcpu_syscall; @@ -160,6 +161,9 @@ void qemu_plugin_vcpu_exit_hook(CPUState *cpu); void qemu_plugin_tb_trans_cb(CPUState *cpu, struct qemu_plugin_tb *tb); void qemu_plugin_vcpu_idle_cb(CPUState *cpu); void qemu_plugin_vcpu_resume_cb(CPUState *cpu); +void qemu_plugin_vcpu_interrupt_cb(CPUState *cpu, uint64_t from); +void qemu_plugin_vcpu_exception_cb(CPUState *cpu, uint64_t from); +void qemu_plugin_vcpu_hostcall_cb(CPUState *cpu, uint64_t from); void qemu_plugin_vcpu_syscall(CPUState *cpu, int64_t num, uint64_t a1, uint64_t a2, uint64_t a3, uint64_t a4, uint64_t a5, @@ -209,6 +213,21 @@ void qemu_plugin_user_prefork_lock(void); */ void qemu_plugin_user_postfork(bool is_child); +enum qemu_plugin_cb_flags tcg_call_to_qemu_plugin_cb_flags(int flags); + +static inline void qemu_plugin_set_cb_flags(CPUState *cpu, + enum qemu_plugin_cb_flags flags) +{ + assert(cpu); + cpu->neg.plugin_cb_flags = flags; +} + +static inline enum qemu_plugin_cb_flags qemu_plugin_get_cb_flags(void) +{ + assert(current_cpu); + return current_cpu->neg.plugin_cb_flags; +} + #else /* !CONFIG_PLUGIN */ static inline void qemu_plugin_add_opts(void) @@ -242,6 +261,15 @@ static inline void qemu_plugin_vcpu_idle_cb(CPUState *cpu) static inline void qemu_plugin_vcpu_resume_cb(CPUState *cpu) { } +static inline void qemu_plugin_vcpu_interrupt_cb(CPUState *cpu, uint64_t from) +{ } + +static inline void qemu_plugin_vcpu_exception_cb(CPUState *cpu, uint64_t from) +{ } + +static inline void qemu_plugin_vcpu_hostcall_cb(CPUState *cpu, uint64_t from) +{ } + static inline void qemu_plugin_vcpu_syscall(CPUState *cpu, int64_t num, uint64_t a1, uint64_t a2, uint64_t a3, uint64_t a4, uint64_t a5, uint64_t a6, diff --git a/include/qemu/qemu-plugin.h b/include/qemu/qemu-plugin.h index 3a850aa..60de4fd 100644 --- a/include/qemu/qemu-plugin.h +++ b/include/qemu/qemu-plugin.h @@ -65,11 +65,18 @@ typedef uint64_t qemu_plugin_id_t; * * version 4: * - added qemu_plugin_read_memory_vaddr + * + * version 5: + * - added qemu_plugin_write_memory_vaddr + * - added qemu_plugin_read_memory_hwaddr + * - added qemu_plugin_write_memory_hwaddr + * - added qemu_plugin_write_register + * - added qemu_plugin_translate_vaddr */ extern QEMU_PLUGIN_EXPORT int qemu_plugin_version; -#define QEMU_PLUGIN_VERSION 4 +#define QEMU_PLUGIN_VERSION 5 /** * struct qemu_info_t - system information for plugins @@ -154,6 +161,50 @@ typedef void (*qemu_plugin_vcpu_simple_cb_t)(qemu_plugin_id_t id, typedef void (*qemu_plugin_vcpu_udata_cb_t)(unsigned int vcpu_index, void *userdata); + +/** + * enum qemu_plugin_discon_type - type of a (potential) PC discontinuity + * + * @QEMU_PLUGIN_DISCON_INTERRUPT: an interrupt, defined across all architectures + * as an asynchronous event, usually originating + * from outside the CPU + * @QEMU_PLUGIN_DISCON_EXCEPTION: an exception, defined across all architectures + * as a synchronous event in response to a + * specific instruction being executed + * @QEMU_PLUGIN_DISCON_HOSTCALL: a host call, functionally a special kind of + * exception that is not handled by code run by + * the vCPU but machinery outside the vCPU + * @QEMU_PLUGIN_DISCON_ALL: all types of disconinuity events currently covered + */ +enum qemu_plugin_discon_type { + QEMU_PLUGIN_DISCON_INTERRUPT = 1 << 0, + QEMU_PLUGIN_DISCON_EXCEPTION = 1 << 1, + QEMU_PLUGIN_DISCON_HOSTCALL = 1 << 2, + QEMU_PLUGIN_DISCON_ALL = -1 +}; + +/** + * typedef qemu_plugin_vcpu_discon_cb_t - vcpu discontinuity callback + * @id: plugin ID + * @vcpu_index: the current vcpu context + * @type: the type of discontinuity + * @from_pc: the source of the discontinuity, e.g. the PC before the + * transition + * @to_pc: the PC pointing to the next instruction to be executed + * + * The exact semantics of @from_pc depends on the @type of discontinuity. For + * interrupts, @from_pc will point to the next instruction which would have + * been executed. For exceptions and host calls, @from_pc will point to the + * instruction that caused the exception or issued the host call. Note that + * in the case of exceptions, the instruction may not be retired and thus not + * observable via general instruction exec callbacks. The same may be the case + * for some host calls such as hypervisor call "exceptions". + */ +typedef void (*qemu_plugin_vcpu_discon_cb_t)(qemu_plugin_id_t id, + unsigned int vcpu_index, + enum qemu_plugin_discon_type type, + uint64_t from_pc, uint64_t to_pc); + /** * qemu_plugin_uninstall() - Uninstall a plugin * @id: this plugin's opaque ID @@ -230,6 +281,22 @@ QEMU_PLUGIN_API void qemu_plugin_register_vcpu_resume_cb(qemu_plugin_id_t id, qemu_plugin_vcpu_simple_cb_t cb); +/** + * qemu_plugin_register_vcpu_discon_cb() - register a discontinuity callback + * @id: plugin ID + * @type: types of discontinuities for which to call the callback + * @cb: callback function + * + * The @cb function is called every time a vCPU receives a discontinuity event + * of the specified type(s), after the vCPU was prepared to handle the event. + * Preparation entails updating the PC, usually to some interrupt handler or + * trap vector entry. + */ +QEMU_PLUGIN_API +void qemu_plugin_register_vcpu_discon_cb(qemu_plugin_id_t id, + enum qemu_plugin_discon_type type, + qemu_plugin_vcpu_discon_cb_t cb); + /** struct qemu_plugin_tb - Opaque handle for a translation block */ struct qemu_plugin_tb; /** struct qemu_plugin_insn - Opaque handle for a translated instruction */ @@ -254,9 +321,6 @@ typedef struct { * @QEMU_PLUGIN_CB_NO_REGS: callback does not access the CPU's regs * @QEMU_PLUGIN_CB_R_REGS: callback reads the CPU's regs * @QEMU_PLUGIN_CB_RW_REGS: callback reads and writes the CPU's regs - * - * Note: currently QEMU_PLUGIN_CB_RW_REGS is unused, plugins cannot change - * system register state. */ enum qemu_plugin_cb_flags { QEMU_PLUGIN_CB_NO_REGS, @@ -871,7 +935,8 @@ struct qemu_plugin_register; /** * typedef qemu_plugin_reg_descriptor - register descriptions * - * @handle: opaque handle for retrieving value with qemu_plugin_read_register + * @handle: opaque handle for retrieving value with qemu_plugin_read_register or + * writing value with qemu_plugin_write_register * @name: register name * @feature: optional feature descriptor, can be NULL */ @@ -894,6 +959,51 @@ QEMU_PLUGIN_API GArray *qemu_plugin_get_registers(void); /** + * qemu_plugin_read_register() - read register for current vCPU + * + * @handle: a @qemu_plugin_reg_handle handle + * @buf: A GByteArray for the data owned by the plugin + * + * This function is only available in a context that register read access is + * explicitly requested via the QEMU_PLUGIN_CB_R_REGS flag, if called inside a + * callback that can be registered with a qemu_plugin_cb_flags argument. This + * function can also be used in any callback context that does not use a flags + * argument, such as in a callback registered with + * qemu_plugin_register_vcpu_init_cb(), except for callbacks registered with + * qemu_plugin_register_atexit_cb() and qemu_plugin_register_flush_cb(). + * + * Returns the size of the read register. The content of @buf is in target byte + * order. On failure returns -1. + */ +QEMU_PLUGIN_API +int qemu_plugin_read_register(struct qemu_plugin_register *handle, + GByteArray *buf); + +/** + * qemu_plugin_write_register() - write register for current vCPU + * + * @handle: a @qemu_plugin_reg_handle handle + * @buf: A GByteArray for the data owned by the plugin + * + * This function is only available in a context that register read access is + * explicitly requested via the QEMU_PLUGIN_CB_RW_REGS flag, if called inside a + * callback that can be registered with a qemu_plugin_cb_flags argument. This + * function can also be used in any callback context that does not use a flags + * argument, such as in a callback registered with + * qemu_plugin_register_vcpu_init_cb(), except for callbacks registered with + * qemu_plugin_register_atexit_cb() and qemu_plugin_register_flush_cb(). + * + * The size of @buf must be at least the size of the requested register. + * Attempting to write a register with @buf smaller than the register size + * will result in a crash or other undesired behavior. + * + * Returns the number of bytes written. On failure returns 0. + */ +QEMU_PLUGIN_API +int qemu_plugin_write_register(struct qemu_plugin_register *handle, + GByteArray *buf); + +/** * qemu_plugin_read_memory_vaddr() - read from memory using a virtual address * * @addr: A virtual address to read from @@ -916,20 +1026,118 @@ bool qemu_plugin_read_memory_vaddr(uint64_t addr, GByteArray *data, size_t len); /** - * qemu_plugin_read_register() - read register for current vCPU + * qemu_plugin_write_memory_vaddr() - write to memory using a virtual address * - * @handle: a @qemu_plugin_reg_handle handle - * @buf: A GByteArray for the data owned by the plugin + * @addr: A virtual address to write to + * @data: A byte array containing the data to write * - * This function is only available in a context that register read access is - * explicitly requested via the QEMU_PLUGIN_CB_R_REGS flag. + * The contents of @data will be written to memory starting at the virtual + * address @addr. * - * Returns the size of the read register. The content of @buf is in target byte - * order. On failure returns -1. + * This function does not guarantee consistency of writes, nor does it ensure + * that pending writes are flushed either before or after the write takes place, + * so callers should take care to only call this function in vCPU context (i.e. + * in callbacks) and avoid depending on the existence of data written using this + * function which may be overwritten afterward. + * + * Returns true on success and false on failure. */ QEMU_PLUGIN_API -int qemu_plugin_read_register(struct qemu_plugin_register *handle, - GByteArray *buf); +bool qemu_plugin_write_memory_vaddr(uint64_t addr, + GByteArray *data); + +/** + * enum qemu_plugin_hwaddr_operation_result - result of a memory operation + * + * @QEMU_PLUGIN_HWADDR_OPERATION_OK: hwaddr operation succeeded + * @QEMU_PLUGIN_HWADDR_OPERATION_ERROR: unexpected error occurred + * @QEMU_PLUGIN_HWADDR_OPERATION_DEVICE_ERROR: error in memory device + * @QEMU_PLUGIN_HWADDR_OPERATION_ACCESS_DENIED: permission error + * @QEMU_PLUGIN_HWADDR_OPERATION_INVALID_ADDRESS: address was invalid + * @QEMU_PLUGIN_HWADDR_OPERATION_INVALID_ADDRESS_SPACE: invalid address space + */ +enum qemu_plugin_hwaddr_operation_result { + QEMU_PLUGIN_HWADDR_OPERATION_OK, + QEMU_PLUGIN_HWADDR_OPERATION_ERROR, + QEMU_PLUGIN_HWADDR_OPERATION_DEVICE_ERROR, + QEMU_PLUGIN_HWADDR_OPERATION_ACCESS_DENIED, + QEMU_PLUGIN_HWADDR_OPERATION_INVALID_ADDRESS, + QEMU_PLUGIN_HWADDR_OPERATION_INVALID_ADDRESS_SPACE, +}; + +/** + * qemu_plugin_read_memory_hwaddr() - read from memory using a hardware address + * + * @addr: The physical address to read from + * @data: A byte array to store data into + * @len: The number of bytes to read, starting from @addr + * + * @len bytes of data is read from the current memory space for the current + * vCPU starting at @addr and stored into @data. If @data is not large enough to + * hold @len bytes, it will be expanded to the necessary size, reallocating if + * necessary. @len must be greater than 0. + * + * This function does not ensure writes are flushed prior to reading, so + * callers should take care when calling this function in plugin callbacks to + * avoid attempting to read data which may not yet be written and should use + * the memory callback API instead. + * + * This function is only valid for softmmu targets. + * + * Returns a qemu_plugin_hwaddr_operation_result indicating the result of the + * operation. + */ +QEMU_PLUGIN_API +enum qemu_plugin_hwaddr_operation_result +qemu_plugin_read_memory_hwaddr(uint64_t addr, GByteArray *data, size_t len); + +/** + * qemu_plugin_write_memory_hwaddr() - write to memory using a hardware address + * + * @addr: A physical address to write to + * @data: A byte array containing the data to write + * + * The contents of @data will be written to memory starting at the hardware + * address @addr in the current address space for the current vCPU. + * + * This function does not guarantee consistency of writes, nor does it ensure + * that pending writes are flushed either before or after the write takes place, + * so callers should take care when calling this function in plugin callbacks to + * avoid depending on the existence of data written using this function which + * may be overwritten afterward. In addition, this function requires that the + * pages containing the address are not locked. Practically, this means that you + * should not write instruction memory in a current translation block inside a + * callback registered with qemu_plugin_register_vcpu_tb_trans_cb. + * + * You can, for example, write instruction memory in a current translation block + * in a callback registered with qemu_plugin_register_vcpu_tb_exec_cb, although + * be aware that the write will not be flushed until after the translation block + * has finished executing. In general, this function should be used to write + * data memory or to patch code at a known address, not in a current translation + * block. + * + * This function is only valid for softmmu targets. + * + * Returns a qemu_plugin_hwaddr_operation_result indicating the result of the + * operation. + */ +QEMU_PLUGIN_API +enum qemu_plugin_hwaddr_operation_result +qemu_plugin_write_memory_hwaddr(uint64_t addr, GByteArray *data); + +/** + * qemu_plugin_translate_vaddr() - translate virtual address for current vCPU + * + * @vaddr: virtual address to translate + * @hwaddr: pointer to store the physical address + * + * This function is only valid in vCPU context (i.e. in callbacks) and is only + * valid for softmmu targets. + * + * Returns true on success and false on failure. + */ +QEMU_PLUGIN_API +bool qemu_plugin_translate_vaddr(uint64_t vaddr, uint64_t *hwaddr); /** * qemu_plugin_scoreboard_new() - alloc a new scoreboard diff --git a/include/qemu/rcu.h b/include/qemu/rcu.h index fea058a..020dbe4 100644 --- a/include/qemu/rcu.h +++ b/include/qemu/rcu.h @@ -17,8 +17,8 @@ * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * License along with this library; if not, see + * <https://www.gnu.org/licenses/>. * * IBM's contributions to this file may be relicensed under LGPLv2 or later. */ diff --git a/include/qemu/rcu_queue.h b/include/qemu/rcu_queue.h index 4e6298d..bfd5900 100644 --- a/include/qemu/rcu_queue.h +++ b/include/qemu/rcu_queue.h @@ -17,8 +17,8 @@ * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * License along with this library; if not, see + * <https://www.gnu.org/licenses/>. * * Copyright (c) 2013 Mike D. Day, IBM Corporation. * diff --git a/include/qemu/s390x_pci_mmio.h b/include/qemu/s390x_pci_mmio.h new file mode 100644 index 0000000..c5f63ec --- /dev/null +++ b/include/qemu/s390x_pci_mmio.h @@ -0,0 +1,24 @@ +/* + * s390x PCI MMIO definitions + * + * Copyright 2025 IBM Corp. + * Author(s): Farhan Ali <alifm@linux.ibm.com> + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#ifndef S390X_PCI_MMIO_H +#define S390X_PCI_MMIO_H + +#ifdef __s390x__ +uint8_t s390x_pci_mmio_read_8(const void *ioaddr); +uint16_t s390x_pci_mmio_read_16(const void *ioaddr); +uint32_t s390x_pci_mmio_read_32(const void *ioaddr); +uint64_t s390x_pci_mmio_read_64(const void *ioaddr); + +void s390x_pci_mmio_write_8(void *ioaddr, uint8_t val); +void s390x_pci_mmio_write_16(void *ioaddr, uint16_t val); +void s390x_pci_mmio_write_32(void *ioaddr, uint32_t val); +void s390x_pci_mmio_write_64(void *ioaddr, uint64_t val); +#endif /* __s390x__ */ + +#endif /* S390X_PCI_MMIO_H */ diff --git a/include/qemu/sockets.h b/include/qemu/sockets.h index c562690..be351d8 100644 --- a/include/qemu/sockets.h +++ b/include/qemu/sockets.h @@ -46,9 +46,6 @@ ssize_t qemu_send_full(int s, const void *buf, size_t count) G_GNUC_WARN_UNUSED_RESULT; int socket_set_cork(int fd, int v); int socket_set_nodelay(int fd); -void qemu_socket_set_block(int fd); -int qemu_socket_try_set_nonblock(int fd); -void qemu_socket_set_nonblock(int fd); int socket_set_fast_reuse(int fd); #ifdef WIN32 diff --git a/include/qemu/target-info-impl.h b/include/qemu/target-info-impl.h index d30805f..e446585 100644 --- a/include/qemu/target-info-impl.h +++ b/include/qemu/target-info-impl.h @@ -9,11 +9,22 @@ #ifndef QEMU_TARGET_INFO_IMPL_H #define QEMU_TARGET_INFO_IMPL_H -#include "qemu/target-info.h" +#include "qapi/qapi-types-common.h" +#include "qapi/qapi-types-machine.h" typedef struct TargetInfo { /* runtime equivalent of TARGET_NAME definition */ const char *target_name; + /* related to TARGET_ARCH definition */ + SysEmuTarget target_arch; + /* runtime equivalent of TARGET_LONG_BITS definition */ + unsigned long_bits; + /* runtime equivalent of CPU_RESOLVING_TYPE definition */ + const char *cpu_type; + /* QOM typename machines for this binary must implement */ + const char *machine_typename; + /* related to TARGET_BIG_ENDIAN definition */ + EndianMode endianness; } TargetInfo; /** diff --git a/include/qemu/target-info-qapi.h b/include/qemu/target-info-qapi.h new file mode 100644 index 0000000..d5ce052 --- /dev/null +++ b/include/qemu/target-info-qapi.h @@ -0,0 +1,29 @@ +/* + * QEMU target info API (returning QAPI types) + * + * Copyright (c) Linaro + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef QEMU_TARGET_INFO_EXTRA_H +#define QEMU_TARGET_INFO_EXTRA_H + +#include "qapi/qapi-types-common.h" +#include "qapi/qapi-types-machine.h" + +/** + * target_arch: + * + * Returns: QAPI SysEmuTarget enum (e.g. SYS_EMU_TARGET_X86_64). + */ +SysEmuTarget target_arch(void); + +/** + * target_endian_mode: + * + * Returns: QAPI EndianMode enum (e.g. ENDIAN_MODE_LITTLE). + */ +EndianMode target_endian_mode(void); + +#endif diff --git a/include/qemu/target-info.h b/include/qemu/target-info.h index 58d4136..6235962 100644 --- a/include/qemu/target-info.h +++ b/include/qemu/target-info.h @@ -1,5 +1,5 @@ /* - * QEMU target info API + * QEMU target info API (returning native types) * * Copyright (c) Linaro * @@ -17,10 +17,58 @@ const char *target_name(void); /** + * target_long_bits: + * + * Returns: number of bits in a long type for this target (i.e. 64). + */ +unsigned target_long_bits(void); + +/** + * target_machine_typename: + * + * Returns: Name of the QOM interface implemented by machines + * usable on this target binary. + */ +const char *target_machine_typename(void); + +/** * target_cpu_type: * * Returns: target CPU base QOM type name (i.e. TYPE_X86_CPU). */ const char *target_cpu_type(void); +/** + * target_big_endian: + * + * Returns: %true if the (default) endianness of the target is big endian, + * %false otherwise. + * + * Common code should normally never need to know about the endianness of + * the target, so please do *not* use this function unless you know very + * well what you are doing! + */ +bool target_big_endian(void); + +/** + * target_base_arm: + * + * Returns whether the target architecture is ARM or Aarch64. + */ +bool target_base_arm(void); + +/** + * target_arm: + * + * Returns whether the target architecture is ARM (32-bit, not Aarch64). + */ +bool target_arm(void); + +/** + * target_aarch64: + * + * Returns whether the target architecture is Aarch64. + */ +bool target_aarch64(void); + #endif diff --git a/include/qemu/thread-posix.h b/include/qemu/thread-posix.h index 5f2f3d1..758808b 100644 --- a/include/qemu/thread-posix.h +++ b/include/qemu/thread-posix.h @@ -32,15 +32,6 @@ struct QemuSemaphore { unsigned int count; }; -struct QemuEvent { -#ifndef __linux__ - pthread_mutex_t lock; - pthread_cond_t cond; -#endif - unsigned value; - bool initialized; -}; - struct QemuThread { pthread_t thread; }; diff --git a/include/qemu/thread-win32.h b/include/qemu/thread-win32.h index d95af44..da9e732 100644 --- a/include/qemu/thread-win32.h +++ b/include/qemu/thread-win32.h @@ -28,12 +28,6 @@ struct QemuSemaphore { bool initialized; }; -struct QemuEvent { - int value; - HANDLE event; - bool initialized; -}; - typedef struct QemuThreadData QemuThreadData; struct QemuThread { QemuThreadData *data; diff --git a/include/qemu/thread.h b/include/qemu/thread.h index 6f800aa..f0302ed 100644 --- a/include/qemu/thread.h +++ b/include/qemu/thread.h @@ -3,13 +3,32 @@ #include "qemu/processor.h" #include "qemu/atomic.h" +#include "qemu/futex.h" typedef struct QemuCond QemuCond; typedef struct QemuSemaphore QemuSemaphore; -typedef struct QemuEvent QemuEvent; typedef struct QemuLockCnt QemuLockCnt; typedef struct QemuThread QemuThread; +/* + * QemuEvent + * ========= + * + * QemuEvent is an implementation of Win32 manual-reset event object. + * For details, refer to: + * https://learn.microsoft.com/en-us/windows/win32/sync/using-event-objects + * + * QemuEvent is more lightweight than QemuSemaphore when HAVE_FUTEX is defined. + */ +typedef struct QemuEvent { +#ifndef HAVE_FUTEX + pthread_mutex_t lock; + pthread_cond_t cond; +#endif + unsigned value; + bool initialized; +} QemuEvent; + #ifdef _WIN32 #include "qemu/thread-win32.h" #else diff --git a/include/qemu/timer.h b/include/qemu/timer.h index abd2204..8b561cd 100644 --- a/include/qemu/timer.h +++ b/include/qemu/timer.h @@ -699,7 +699,7 @@ void timer_mod_anticipate(QEMUTimer *ts, int64_t expire_time); * * Returns: true if the timer is pending */ -bool timer_pending(QEMUTimer *ts); +bool timer_pending(const QEMUTimer *ts); /** * timer_expired: @@ -710,7 +710,7 @@ bool timer_pending(QEMUTimer *ts); * * Returns: true if the timer has expired */ -bool timer_expired(QEMUTimer *timer_head, int64_t current_time); +bool timer_expired(const QEMUTimer *timer_head, int64_t current_time); /** * timer_expire_time_ns: @@ -720,7 +720,7 @@ bool timer_expired(QEMUTimer *timer_head, int64_t current_time); * * Returns: the expiry time in nanoseconds */ -uint64_t timer_expire_time_ns(QEMUTimer *ts); +uint64_t timer_expire_time_ns(const QEMUTimer *ts); /** * timer_get: @@ -786,11 +786,12 @@ static inline int64_t qemu_soonest_timeout(int64_t timeout1, int64_t timeout2) } /** - * initclocks: + * qemu_init_clocks: + * @notify_cb: optional call-back for timer expiry * * Initialise the clock & timer infrastructure */ -void init_clocks(QEMUTimerListNotifyCB *notify_cb); +void qemu_init_clocks(QEMUTimerListNotifyCB *notify_cb); static inline int64_t get_max_clock_jump(void) { @@ -850,12 +851,11 @@ static inline int64_t get_clock(void) /*******************************************/ /* host CPU ticks (if available) */ -#if defined(_ARCH_PPC) +#if defined(_ARCH_PPC64) static inline int64_t cpu_get_host_ticks(void) { int64_t retval; -#ifdef _ARCH_PPC64 /* This reads timebase in one 64bit go and includes Cell workaround from: http://ozlabs.org/pipermail/linuxppc-dev/2006-October/027052.html */ @@ -863,16 +863,6 @@ static inline int64_t cpu_get_host_ticks(void) "cmpwi %0,0\n\t" "beq- $-8" : "=r" (retval)); -#else - /* http://ozlabs.org/pipermail/linuxppc-dev/1999-October/003889.html */ - unsigned long junk; - __asm__ __volatile__ ("mfspr %1,269\n\t" /* mftbu */ - "mfspr %L0,268\n\t" /* mftb */ - "mfspr %0,269\n\t" /* mftbu */ - "cmpw %0,%1\n\t" - "bne $-16" - : "=r" (retval), "=r" (junk)); -#endif return retval; } diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h index 507f081..4a94af9 100644 --- a/include/qemu/typedefs.h +++ b/include/qemu/typedefs.h @@ -109,7 +109,7 @@ typedef struct QString QString; typedef struct RAMBlock RAMBlock; typedef struct Range Range; typedef struct ReservedRegion ReservedRegion; -typedef struct SaveLiveCompletePrecopyThreadData SaveLiveCompletePrecopyThreadData; +typedef struct SaveCompletePrecopyThreadData SaveCompletePrecopyThreadData; typedef struct SHPCDevice SHPCDevice; typedef struct SSIBus SSIBus; typedef struct TCGCPUOps TCGCPUOps; @@ -135,7 +135,7 @@ typedef struct IRQState *qemu_irq; typedef void (*qemu_irq_handler)(void *opaque, int n, int level); typedef bool (*MigrationLoadThread)(void *opaque, bool *should_quit, Error **errp); -typedef bool (*SaveLiveCompletePrecopyThreadHandler)(SaveLiveCompletePrecopyThreadData *d, - Error **errp); +typedef bool (*SaveCompletePrecopyThreadHandler)(SaveCompletePrecopyThreadData *d, + Error **errp); #endif /* QEMU_TYPEDEFS_H */ diff --git a/include/qemu/xattr.h b/include/qemu/xattr.h index b08a934..224ba12 100644 --- a/include/qemu/xattr.h +++ b/include/qemu/xattr.h @@ -26,7 +26,11 @@ # define ENOATTR ENODATA # endif # ifndef CONFIG_WIN32 -# include <sys/xattr.h> +# ifdef CONFIG_FREEBSD +# include <sys/extattr.h> +# else +# include <sys/xattr.h> +# endif # endif #endif |