diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/crypto/tlssession.h | 10 | ||||
| -rw-r--r-- | include/exec/cpu-common.h | 10 | ||||
| -rw-r--r-- | include/hw/core/cpu.h | 1 | ||||
| -rw-r--r-- | include/migration/colo.h | 2 | ||||
| -rw-r--r-- | include/migration/cpr.h | 10 | ||||
| -rw-r--r-- | include/migration/misc.h | 12 | ||||
| -rw-r--r-- | include/migration/vmstate.h | 19 | ||||
| -rw-r--r-- | include/qemu/osdep.h | 9 | ||||
| -rw-r--r-- | include/system/memory.h | 24 |
9 files changed, 77 insertions, 20 deletions
diff --git a/include/crypto/tlssession.h b/include/crypto/tlssession.h index 2f62ce2d67..2e9fe11cf6 100644 --- a/include/crypto/tlssession.h +++ b/include/crypto/tlssession.h @@ -110,6 +110,7 @@ typedef struct QCryptoTLSSession QCryptoTLSSession; #define QCRYPTO_TLS_SESSION_ERR_BLOCK -2 +#define QCRYPTO_TLS_SESSION_PREMATURE_TERMINATION -3 /** * qcrypto_tls_session_new: @@ -259,7 +260,6 @@ ssize_t qcrypto_tls_session_write(QCryptoTLSSession *sess, * @sess: the TLS session object * @buf: to fill with plain text received * @len: the length of @buf - * @gracefulTermination: treat premature termination as graceful EOF * @errp: pointer to hold returned error object * * Receive up to @len bytes of data from the remote peer @@ -267,22 +267,18 @@ ssize_t qcrypto_tls_session_write(QCryptoTLSSession *sess, * qcrypto_tls_session_set_callbacks(), decrypt it and * store it in @buf. * - * If @gracefulTermination is true, then a premature termination - * of the TLS session will be treated as indicating EOF, as - * opposed to an error. - * * It is an error to call this before * qcrypto_tls_session_handshake() returns * QCRYPTO_TLS_HANDSHAKE_COMPLETE * * Returns: the number of bytes received, * or QCRYPTO_TLS_SESSION_ERR_BLOCK if the receive would block, - * or -1 on error. + * or QCRYPTO_TLS_SESSION_PREMATURE_TERMINATION if a premature termination + * is detected, or -1 on error. */ ssize_t qcrypto_tls_session_read(QCryptoTLSSession *sess, char *buf, size_t len, - bool gracefulTermination, Error **errp); /** diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h index f373781ae0..b96ac49844 100644 --- a/include/exec/cpu-common.h +++ b/include/exec/cpu-common.h @@ -123,13 +123,13 @@ size_t qemu_ram_pagesize_largest(void); void cpu_address_space_init(CPUState *cpu, int asidx, const char *prefix, MemoryRegion *mr); /** - * cpu_address_space_destroy: - * @cpu: CPU for which address space needs to be destroyed - * @asidx: integer index of this address space + * cpu_destroy_address_spaces: + * @cpu: CPU for which address spaces need to be destroyed * - * Note that with KVM only one address space is supported. + * Destroy all address spaces associated with this CPU; this + * is called as part of unrealizing the CPU. */ -void cpu_address_space_destroy(CPUState *cpu, int asidx); +void cpu_destroy_address_spaces(CPUState *cpu); void cpu_physical_memory_rw(hwaddr addr, void *buf, hwaddr len, bool is_write); diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h index c9f40c2539..0fcbc923f3 100644 --- a/include/hw/core/cpu.h +++ b/include/hw/core/cpu.h @@ -515,7 +515,6 @@ struct CPUState { QSIMPLEQ_HEAD(, qemu_work_item) work_list; struct CPUAddressSpace *cpu_ases; - int cpu_ases_count; int num_ases; AddressSpace *as; MemoryRegion *memory; diff --git a/include/migration/colo.h b/include/migration/colo.h index 43222ef5ae..d4fe422e4d 100644 --- a/include/migration/colo.h +++ b/include/migration/colo.h @@ -25,7 +25,7 @@ void migrate_start_colo_process(MigrationState *s); bool migration_in_colo_state(void); /* loadvm */ -int migration_incoming_enable_colo(void); +int migration_incoming_enable_colo(Error **errp); void migration_incoming_disable_colo(void); bool migration_incoming_colo_enabled(void); bool migration_incoming_in_colo_state(void); diff --git a/include/migration/cpr.h b/include/migration/cpr.h index 3fc19a74ef..a412d6663c 100644 --- a/include/migration/cpr.h +++ b/include/migration/cpr.h @@ -34,6 +34,9 @@ void cpr_resave_fd(const char *name, int id, int fd); int cpr_open_fd(const char *path, int flags, const char *name, int id, Error **errp); +typedef bool (*cpr_walk_fd_cb)(int fd); +bool cpr_walk_fd(cpr_walk_fd_cb cb); + MigMode cpr_get_incoming_mode(void); void cpr_set_incoming_mode(MigMode mode); bool cpr_is_incoming(void); @@ -50,4 +53,11 @@ int cpr_get_fd_param(const char *name, const char *fdname, int index, QEMUFile *cpr_transfer_output(MigrationChannel *channel, Error **errp); QEMUFile *cpr_transfer_input(MigrationChannel *channel, Error **errp); +void cpr_exec_init(void); +QEMUFile *cpr_exec_output(Error **errp); +QEMUFile *cpr_exec_input(Error **errp); +void cpr_exec_persist_state(QEMUFile *f); +bool cpr_exec_has_state(void); +void cpr_exec_unpersist_state(void); +void cpr_exec_unpreserve_fds(void); #endif diff --git a/include/migration/misc.h b/include/migration/misc.h index a261f99d89..592b93021e 100644 --- a/include/migration/misc.h +++ b/include/migration/misc.h @@ -95,7 +95,19 @@ void migration_add_notifier(NotifierWithReturn *notify, void migration_add_notifier_mode(NotifierWithReturn *notify, MigrationNotifyFunc func, MigMode mode); +/* + * Same as migration_add_notifier, but applies to all @mode in the argument + * list. The list is terminated by -1 or MIG_MODE_ALL. For the latter, + * the notifier is added for all modes. + */ +void migration_add_notifier_modes(NotifierWithReturn *notify, + MigrationNotifyFunc func, MigMode mode, ...); + +/* + * Remove a notifier from all modes. + */ void migration_remove_notifier(NotifierWithReturn *notify); + void migration_file_set_error(int ret, Error *err); /* True if incoming migration entered POSTCOPY_INCOMING_DISCARD */ diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h index 1cfddf31b5..63ccaee07a 100644 --- a/include/migration/vmstate.h +++ b/include/migration/vmstate.h @@ -163,6 +163,7 @@ typedef enum { MIG_PRI_IOMMU, /* Must happen before PCI devices */ MIG_PRI_PCI_BUS, /* Must happen before IOMMU */ MIG_PRI_VIRTIO_MEM, /* Must happen before IOMMU */ + MIG_PRI_APIC, /* Must happen before PCI devices */ MIG_PRI_GICV3_ITS, /* Must happen before PCI devices */ MIG_PRI_GICV3, /* Must happen before the ITS */ MIG_PRI_MAX, @@ -200,14 +201,28 @@ struct VMStateDescription { * exclusive. For this reason, also early_setup VMSDs are migrated in a * QEMU_VM_SECTION_FULL section, while save_setup() data is migrated in * a QEMU_VM_SECTION_START section. + * + * There are duplicate impls of the post/pre save/load hooks. + * New impls should preferentally use 'errp' variants of these + * methods and existing impls incrementally converted. + * The variants without 'errp' are intended to be removed + * once all usage is converted. + * + * For the errp variants, + * Returns: 0 on success, + * <0 on error where -value is an error number from errno.h */ + bool early_setup; int version_id; int minimum_version_id; MigrationPriority priority; int (*pre_load)(void *opaque); + int (*pre_load_errp)(void *opaque, Error **errp); int (*post_load)(void *opaque, int version_id); + int (*post_load_errp)(void *opaque, int version_id, Error **errp); int (*pre_save)(void *opaque); + int (*pre_save_errp)(void *opaque, Error **errp); int (*post_save)(void *opaque); bool (*needed)(void *opaque); bool (*dev_unplug_pending)(void *opaque); @@ -1206,10 +1221,8 @@ extern const VMStateInfo vmstate_info_qlist; } int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd, - void *opaque, int version_id); + void *opaque, int version_id, Error **errp); int vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd, - void *opaque, JSONWriter *vmdesc); -int vmstate_save_state_with_err(QEMUFile *f, const VMStateDescription *vmsd, void *opaque, JSONWriter *vmdesc, Error **errp); int vmstate_save_state_v(QEMUFile *f, const VMStateDescription *vmsd, void *opaque, JSONWriter *vmdesc, diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h index 6de6c0c4e5..cf8d7cf7e6 100644 --- a/include/qemu/osdep.h +++ b/include/qemu/osdep.h @@ -689,6 +689,15 @@ ssize_t qemu_write_full(int fd, const void *buf, size_t count) 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/system/memory.h b/include/system/memory.h index aa85fc27a1..08daf0fc59 100644 --- a/include/system/memory.h +++ b/include/system/memory.h @@ -2727,15 +2727,33 @@ void address_space_init(AddressSpace *as, MemoryRegion *root, const char *name); /** * address_space_destroy: destroy an address space * - * Releases all resources associated with an address space. After an address space - * is destroyed, its root memory region (given by address_space_init()) may be destroyed - * as well. + * Releases all resources associated with an address space. After an + * address space is destroyed, the reference the AddressSpace had to + * its root memory region is dropped, which may result in the + * destruction of that memory region as well. + * + * Note that destruction of the AddressSpace is done via RCU; + * it is therefore not valid to free the memory the AddressSpace + * struct is in until after that RCU callback has completed. + * If you want to g_free() the AddressSpace after destruction you + * can do that with address_space_destroy_free(). * * @as: address space to be destroyed */ void address_space_destroy(AddressSpace *as); /** + * address_space_destroy_free: destroy an address space and free it + * + * This does the same thing as address_space_destroy(), and then also + * frees (via g_free()) the AddressSpace itself once the destruction + * is complete. + * + * @as: address space to be destroyed + */ +void address_space_destroy_free(AddressSpace *as); + +/** * address_space_remove_listeners: unregister all listeners of an address space * * Removes all callbacks previously registered with memory_listener_register() |