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authorPeter Maydell <peter.maydell@linaro.org>2017-07-14 12:16:09 +0100
committerPeter Maydell <peter.maydell@linaro.org>2017-07-14 12:16:09 +0100
commit6c6076662d98c068059983d411cb2a8987ba5670 (patch)
treeb3a180eb5eab8474c5557b8a77c2589faa980f8e /chardev/char-fe.c
parent7d367e7002c3ca78531653105bd4fccd55e426a8 (diff)
parent68c761e19c2ea453f880dbbd04e867d34d1468b8 (diff)
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
* gdbstub fixes (Alex) * IOMMU MemoryRegion subclass (Alexey) * Chardev hotswap (Anton) * NBD_OPT_GO support (Eric) * Misc bugfixes * DEFINE_PROP_LINK (minus the ARM patches - Fam) * MAINTAINERS updates (Philippe) # gpg: Signature made Fri 14 Jul 2017 11:06:27 BST # gpg: using RSA key 0xBFFBD25F78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: (55 commits) spapr_rng: Convert to DEFINE_PROP_LINK cpu: Convert to DEFINE_PROP_LINK mips_cmgcr: Convert to DEFINE_PROP_LINK ivshmem: Convert to DEFINE_PROP_LINK dimm: Convert to DEFINE_PROP_LINK virtio-crypto: Convert to DEFINE_PROP_LINK virtio-rng: Convert to DEFINE_PROP_LINK virtio-scsi: Convert to DEFINE_PROP_LINK virtio-blk: Convert to DEFINE_PROP_LINK qdev: Add const qualifier to PropertyInfo definitions qmp: Use ObjectProperty.type if present qdev: Introduce DEFINE_PROP_LINK qdev: Introduce PropertyInfo.create qom: enforce readonly nature of link's check callback translate-all: remove redundant !tcg_enabled check in dump_exec_info vl: fix breakage of -tb-size nbd: Implement NBD_INFO_BLOCK_SIZE on client nbd: Implement NBD_INFO_BLOCK_SIZE on server nbd: Implement NBD_OPT_GO on client nbd: Implement NBD_OPT_GO on server ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'chardev/char-fe.c')
-rw-r--r--chardev/char-fe.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/chardev/char-fe.c b/chardev/char-fe.c
index 3f90f0567c..f3af6ae584 100644
--- a/chardev/char-fe.c
+++ b/chardev/char-fe.c
@@ -179,9 +179,21 @@ void qemu_chr_fe_printf(CharBackend *be, const char *fmt, ...)
Chardev *qemu_chr_fe_get_driver(CharBackend *be)
{
+ /* this is unsafe for the users that support chardev hotswap */
+ assert(be->chr_be_change == NULL);
return be->chr;
}
+bool qemu_chr_fe_backend_connected(CharBackend *be)
+{
+ return !!be->chr;
+}
+
+bool qemu_chr_fe_backend_open(CharBackend *be)
+{
+ return be->chr && be->chr->be_open;
+}
+
bool qemu_chr_fe_init(CharBackend *b, Chardev *s, Error **errp)
{
int tag = 0;
@@ -216,7 +228,7 @@ void qemu_chr_fe_deinit(CharBackend *b, bool del)
assert(b);
if (b->chr) {
- qemu_chr_fe_set_handlers(b, NULL, NULL, NULL, NULL, NULL, true);
+ qemu_chr_fe_set_handlers(b, NULL, NULL, NULL, NULL, NULL, NULL, true);
if (b->chr->be == b) {
b->chr->be = NULL;
}
@@ -235,6 +247,7 @@ void qemu_chr_fe_set_handlers(CharBackend *b,
IOCanReadHandler *fd_can_read,
IOReadHandler *fd_read,
IOEventHandler *fd_event,
+ BackendChangeHandler *be_change,
void *opaque,
GMainContext *context,
bool set_open)
@@ -258,6 +271,7 @@ void qemu_chr_fe_set_handlers(CharBackend *b,
b->chr_can_read = fd_can_read;
b->chr_read = fd_read;
b->chr_event = fd_event;
+ b->chr_be_change = be_change;
b->opaque = opaque;
if (cc->chr_update_read_handler) {
cc->chr_update_read_handler(s, context);