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qemu 1.3 release
Option to use linux VFIO driver to assign PCI devices
Many USB3 improvements
New paravirtualized hardware random number generator device.
Support for Glusterfs volumes with "gluster://" -drive URI
Block job commands for live block commit and storage migration
This commit is contained in:
Cole Robinson 2012-12-07 13:18:14 -05:00
parent 7e50c47580
commit 22d63f488d
19 changed files with 2202 additions and 1 deletions
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1
.gitignore vendored
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@ -16,3 +16,4 @@ qemu-kvm-0.13.0-25fdf4a.tar.gz
/qemu-kvm-1.2-3e430569.tar.gz
/qemu-kvm-1.2.0-rc1.tar.gz
/qemu-kvm-1.2.0.tar.gz
/qemu-1.3.0.tar.bz2

26
0000-libcacard-fix-missing-symbols-in-libcacard.so.patch Normal file
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@ -0,0 +1,26 @@
From 94afb78477a5b078449e5d48b38e74aac3fa5ac4 Mon Sep 17 00:00:00 2001
Message-Id: <94afb78477a5b078449e5d48b38e74aac3fa5ac4.1354903384.git.crobinso@redhat.com>
From: Alon Levy <alevy@redhat.com>
Date: Wed, 28 Nov 2012 16:38:43 +0200
Subject: [PATCH] libcacard: fix missing symbols in libcacard.so
---
libcacard/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libcacard/Makefile b/libcacard/Makefile
index c26aac6..49a9729 100644
--- a/libcacard/Makefile
+++ b/libcacard/Makefile
@@ -7,7 +7,7 @@ libcacard_includedir=$(includedir)/cacard
$(call set-vpath, $(SRC_PATH))
# objects linked into a shared library, built with libtool with -fPIC if required
-QEMU_OBJS=$(oslib-obj-y) qemu-timer-common.o $(trace-obj-y) $(stub-obj-y)
+QEMU_OBJS=$(oslib-obj-y) qemu-timer-common.o iov.o cutils.o qemu-user.o $(trace-obj-y) $(stub-obj-y)
QEMU_OBJS_LIB=$(patsubst %.o,%.lo,$(QEMU_OBJS))
QEMU_CFLAGS+=-I../
--
1.8.0

96
0001-configure-move-vscclient-binary-under-libcacard.patch Normal file
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@ -0,0 +1,96 @@
From df9d09b15cb4b8397bfe984bf3f54dbb5457d446 Mon Sep 17 00:00:00 2001
Message-Id: <df9d09b15cb4b8397bfe984bf3f54dbb5457d446.1354903384.git.crobinso@redhat.com>
In-Reply-To: <94afb78477a5b078449e5d48b38e74aac3fa5ac4.1354903384.git.crobinso@redhat.com>
References: <94afb78477a5b078449e5d48b38e74aac3fa5ac4.1354903384.git.crobinso@redhat.com>
From: Alon Levy <alevy@redhat.com>
Date: Thu, 29 Nov 2012 14:11:19 +0200
Subject: [PATCH] configure: move vscclient binary under libcacard
build rule is in top level Makefile like other tools.
build rule also exists in libcacard for installation purposes. This was
fixed in a better way in 1.3.0-rc2
---
Makefile | 4 ++--
Makefile.objs | 11 ++++++-----
configure | 2 +-
libcacard/Makefile | 6 +++++-
4 files changed, 14 insertions(+), 9 deletions(-)
diff --git a/Makefile b/Makefile
index 9ecbcbb..c2d34a9 100644
--- a/Makefile
+++ b/Makefile
@@ -197,8 +197,8 @@ qemu-io$(EXESUF): qemu-io.o cmd.o $(tools-obj-y) $(block-obj-y) libqemustub.a
qemu-bridge-helper$(EXESUF): qemu-bridge-helper.o
-vscclient$(EXESUF): $(libcacard-y) $(oslib-obj-y) $(trace-obj-y) libcacard/vscclient.o libqemustub.a
- $(call quiet-command,$(CC) $(LDFLAGS) -o $@ $^ $(libcacard_libs) $(LIBS)," LINK $@")
+libcacard/vscclient$(EXESUF): $(libcacard-y) $(oslib-obj-y) $(trace-obj-y) iov.o cutils.o qemu-user.o libcacard/vscclient.o libqemustub.a
+libcacard/vscclient$(EXESUF): LIBS += $(libcacard_libs)
fsdev/virtfs-proxy-helper$(EXESUF): fsdev/virtfs-proxy-helper.o fsdev/virtio-9p-marshal.o oslib-posix.o $(trace-obj-y)
fsdev/virtfs-proxy-helper$(EXESUF): LIBS += -lcap
diff --git a/Makefile.objs b/Makefile.objs
index 3c7abca..140d592 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -211,11 +211,12 @@ $(trace-obj-y): $(GENERATED_HEADERS)
######################################################################
# smartcard
-libcacard-y += libcacard/cac.o libcacard/event.o
-libcacard-y += libcacard/vcard.o libcacard/vreader.o
-libcacard-y += libcacard/vcard_emul_nss.o
-libcacard-y += libcacard/vcard_emul_type.o
-libcacard-y += libcacard/card_7816.o
+libcacard-base-y += cac.o event.o
+libcacard-base-y += vcard.o vreader.o
+libcacard-base-y += vcard_emul_nss.o
+libcacard-base-y += vcard_emul_type.o
+libcacard-base-y += card_7816.o
+libcacard-y = $(addprefix libcacard/,$(libcacard-base-y))
common-obj-$(CONFIG_SMARTCARD_NSS) += $(libcacard-y)
diff --git a/configure b/configure
index 994f731..7498e3f 100755
--- a/configure
+++ b/configure
@@ -3136,7 +3136,7 @@ if test "$softmmu" = yes ; then
fi
fi
if test "$smartcard_nss" = "yes" ; then
- tools="vscclient\$(EXESUF) $tools"
+ tools="libcacard/vscclient\$(EXESUF) $tools"
fi
fi
diff --git a/libcacard/Makefile b/libcacard/Makefile
index 49a9729..750713a 100644
--- a/libcacard/Makefile
+++ b/libcacard/Makefile
@@ -47,6 +47,10 @@ libcacard.pc: $(libcacard_srcpath)/libcacard.pc.in
< $(libcacard_srcpath)/libcacard.pc.in > libcacard.pc,\
" GEN $@")
+VSCCLIENT_QEMU_OBJS=$(addprefix ../,$(oslib-obj-y) $(trace-obj-y) qemu-timer-common.o iov.o cutils.o qemu-user.o)
+vscclient$(EXESUF): $(VSCCLIENT_QEMU_OBJS) $(libcacard-base-y) vscclient.o
+vscclient$(EXESUF): LIBS += $(libcacard_libs)
+
.PHONY: install-libcacard
install-libcacard: libcacard.pc libcacard.la vscclient
@@ -54,7 +58,7 @@ install-libcacard: libcacard.pc libcacard.la vscclient
$(INSTALL_DIR) "$(DESTDIR)$(libdir)/pkgconfig"
$(INSTALL_DIR) "$(DESTDIR)$(libcacard_includedir)"
$(INSTALL_DIR) "$(DESTDIR)$(bindir)"
- $(LIBTOOL) --mode=install $(INSTALL_PROG) vscclient "$(DESTDIR)$(bindir)"
+ $(LIBTOOL) --mode=install $(INSTALL_PROG) vscclient$(EXESUF) "$(DESTDIR)$(bindir)"
$(LIBTOOL) --mode=install $(INSTALL_DATA) libcacard.la "$(DESTDIR)$(libdir)"
$(LIBTOOL) --mode=install $(INSTALL_DATA) libcacard.pc "$(DESTDIR)$(libdir)/pkgconfig"
for inc in *.h; do \
--
1.8.0

31
0002-Fix-migration-from-qemu-kvm-1.2.patch Normal file
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@ -0,0 +1,31 @@
From 633ff09ae5702676d0f33cba80db45ff5bdbde0f Mon Sep 17 00:00:00 2001
Message-Id: <633ff09ae5702676d0f33cba80db45ff5bdbde0f.1354903384.git.crobinso@redhat.com>
In-Reply-To: <94afb78477a5b078449e5d48b38e74aac3fa5ac4.1354903384.git.crobinso@redhat.com>
References: <94afb78477a5b078449e5d48b38e74aac3fa5ac4.1354903384.git.crobinso@redhat.com>
From: Cole Robinson <crobinso@redhat.com>
Date: Fri, 7 Dec 2012 12:32:41 -0500
Subject: [PATCH] Fix migration from qemu-kvm 1.2
As suggested by Marcelo
---
hw/acpi_piix4.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/acpi_piix4.c b/hw/acpi_piix4.c
index 519269a..66adc88 100644
--- a/hw/acpi_piix4.c
+++ b/hw/acpi_piix4.c
@@ -310,8 +310,8 @@ static int acpi_load_old(QEMUFile *f, void *opaque, int version_id)
*/
static const VMStateDescription vmstate_acpi = {
.name = "piix4_pm",
- .version_id = 3,
- .minimum_version_id = 3,
+ .version_id = 2,
+ .minimum_version_id = 2,
.minimum_version_id_old = 1,
.load_state_old = acpi_load_old,
.post_load = vmstate_acpi_post_load,
--
1.8.0

58
0100-char-Split-out-tcp-socket-close-code-in-a-separate-f.patch Normal file
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@ -0,0 +1,58 @@
From 9f0944a25bc1094fa7a74ac9df14e184e2c5c82d Mon Sep 17 00:00:00 2001
Message-Id: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
From: Amit Shah <amit.shah@redhat.com>
Date: Mon, 21 Mar 2011 21:57:47 +0100
Subject: [PATCH] char: Split out tcp socket close code in a separate function
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
---
qemu-char.c | 25 ++++++++++++++++---------
1 file changed, 16 insertions(+), 9 deletions(-)
diff --git a/qemu-char.c b/qemu-char.c
index 242b799..77776dc 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -2146,6 +2146,21 @@ typedef struct {
static void tcp_chr_accept(void *opaque);
+static void tcp_closed(void *opaque)
+{
+ CharDriverState *chr = opaque;
+ TCPCharDriver *s = chr->opaque;
+
+ s->connected = 0;
+ if (s->listen_fd >= 0) {
+ qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
+ }
+ qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
+ closesocket(s->fd);
+ s->fd = -1;
+ qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
+}
+
static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
{
TCPCharDriver *s = chr->opaque;
@@ -2304,15 +2319,7 @@ static void tcp_chr_read(void *opaque)
len = s->max_size;
size = tcp_chr_recv(chr, (void *)buf, len);
if (size == 0) {
- /* connection closed */
- s->connected = 0;
- if (s->listen_fd >= 0) {
- qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
- }
- qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
- closesocket(s->fd);
- s->fd = -1;
- qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
+ tcp_closed(chr);
} else if (size > 0) {
if (s->do_telnetopt)
tcp_chr_process_IAC_bytes(chr, s, buf, &size);
--
1.8.0

1046
0101-char-Add-a-QemuChrHandlers-struct-to-initialise-char.patch Normal file
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File diff suppressed because it is too large Load Diff

80
0102-iohandlers-Add-enable-disable_write_fd_handler-funct.patch Normal file
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@ -0,0 +1,80 @@
From 448ba28f493820e91b65986901165cb28ff5fd78 Mon Sep 17 00:00:00 2001
Message-Id: <448ba28f493820e91b65986901165cb28ff5fd78.1354903384.git.crobinso@redhat.com>
In-Reply-To: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
References: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
From: Amit Shah <amit.shah@redhat.com>
Date: Mon, 21 Mar 2011 20:32:58 +0100
Subject: [PATCH] iohandlers: Add enable/disable_write_fd_handler() functions
These will be used to provide a cleaner API for the nonblocking case.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
---
iohandler.c | 35 +++++++++++++++++++++++++++++++++++
main-loop.h | 3 +++
2 files changed, 38 insertions(+)
diff --git a/iohandler.c b/iohandler.c
index 60460a6..6cf2cdd 100644
--- a/iohandler.c
+++ b/iohandler.c
@@ -46,6 +46,41 @@ typedef struct IOHandlerRecord {
static QLIST_HEAD(, IOHandlerRecord) io_handlers =
QLIST_HEAD_INITIALIZER(io_handlers);
+static IOHandlerRecord *find_iohandler(int fd)
+{
+ IOHandlerRecord *ioh;
+
+ QLIST_FOREACH(ioh, &io_handlers, next) {
+ if (ioh->fd == fd) {
+ return ioh;
+ }
+ }
+ return NULL;
+}
+
+void enable_write_fd_handler(int fd, IOHandler *fd_write)
+{
+ IOHandlerRecord *ioh;
+
+ ioh = find_iohandler(fd);
+ if (!ioh) {
+ return;
+ }
+
+ ioh->fd_write = fd_write;
+}
+
+void disable_write_fd_handler(int fd)
+{
+ IOHandlerRecord *ioh;
+
+ ioh = find_iohandler(fd);
+ if (!ioh) {
+ return;
+ }
+
+ ioh->fd_write = NULL;
+}
/* XXX: fd_read_poll should be suppressed, but an API change is
necessary in the character devices to suppress fd_can_read(). */
diff --git a/main-loop.h b/main-loop.h
index 326c742..883ad43 100644
--- a/main-loop.h
+++ b/main-loop.h
@@ -166,6 +166,9 @@ void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque);
typedef void IOReadHandler(void *opaque, const uint8_t *buf, int size);
typedef int IOCanReadHandler(void *opaque);
+void enable_write_fd_handler(int fd, IOHandler *fd_write);
+void disable_write_fd_handler(int fd);
+
/**
* qemu_set_fd_handler2: Register a file descriptor with the main loop
*
--
1.8.0

65
0103-char-Add-framework-for-a-write-unblocked-callback.patch Normal file
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@ -0,0 +1,65 @@
From ea5fefd1ca7fb951c534333a78618ec6d6d89581 Mon Sep 17 00:00:00 2001
Message-Id: <ea5fefd1ca7fb951c534333a78618ec6d6d89581.1354903384.git.crobinso@redhat.com>
In-Reply-To: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
References: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
From: Amit Shah <amit.shah@redhat.com>
Date: Mon, 21 Mar 2011 21:41:42 +0100
Subject: [PATCH] char: Add framework for a 'write unblocked' callback
The char layer can let users know that the driver will block on further
input. For users interested in not blocking, they can assign a function
pointer that will be called back when the driver becomes writable. This
patch just adds the function pointers to the CharDriverState structure,
future patches will enable the nonblocking and callback functionality.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
---
qemu-char.c | 3 +++
qemu-char.h | 4 ++++
2 files changed, 7 insertions(+)
diff --git a/qemu-char.c b/qemu-char.c
index 97247fb..c9e6e36 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -212,11 +212,14 @@ void qemu_chr_add_handlers(CharDriverState *s,
}
s->chr_can_read = handlers->fd_can_read;
s->chr_read = handlers->fd_read;
+ s->chr_write_unblocked = handlers->fd_write_unblocked;
s->chr_event = handlers->fd_event;
s->handler_opaque = opaque;
if (s->chr_update_read_handler)
s->chr_update_read_handler(s);
+ s->write_blocked = false;
+
/* We're connecting to an already opened device, so let's make sure we
also get the open event */
if (s->opened) {
diff --git a/qemu-char.h b/qemu-char.h
index ff206cb..9e1b0f1 100644
--- a/qemu-char.h
+++ b/qemu-char.h
@@ -63,6 +63,9 @@ struct CharDriverState {
IOEventHandler *chr_event;
IOCanReadHandler *chr_can_read;
IOReadHandler *chr_read;
+ IOHandler *chr_write_unblocked;
+ void (*chr_enable_write_fd_handler)(struct CharDriverState *chr);
+ void (*chr_disable_write_fd_handler)(struct CharDriverState *chr);
void *handler_opaque;
void (*chr_close)(struct CharDriverState *chr);
void (*chr_accept_input)(struct CharDriverState *chr);
@@ -75,6 +78,7 @@ struct CharDriverState {
char *filename;
int opened;
int avail_connections;
+ bool write_blocked; /* Are we in a blocked state? */
QTAILQ_ENTRY(CharDriverState) next;
};
--
1.8.0

176
0104-char-Update-send_all-to-handle-nonblocking-chardev-w.patch Normal file
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@ -0,0 +1,176 @@
From dfbe8c51243ecd2ad33037cfbbb37440cc3d03ee Mon Sep 17 00:00:00 2001
Message-Id: <dfbe8c51243ecd2ad33037cfbbb37440cc3d03ee.1354903384.git.crobinso@redhat.com>
In-Reply-To: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
References: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
From: Amit Shah <amit.shah@redhat.com>
Date: Mon, 21 Mar 2011 22:00:27 +0100
Subject: [PATCH] char: Update send_all() to handle nonblocking chardev write
requests
The send_all function is modified to return to the caller in case the
driver cannot handle any more data. It returns -EAGAIN or
WSAEWOULDBLOCK on non-Windows and Windows platforms respectively. This
is only done when the caller sets a callback function handler indicating
it's not interested in blocking till the driver has written out all the
data.
Currently there's no driver or caller that supports this. Future
commits will add such capability.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
---
qemu-char.c | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++++------
qemu_socket.h | 2 +-
2 files changed, 64 insertions(+), 7 deletions(-)
diff --git a/qemu-char.c b/qemu-char.c
index c9e6e36..53803a3 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -509,7 +509,7 @@ static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
#ifdef _WIN32
-int send_all(int fd, const void *buf, int len1)
+static int do_send(int fd, const void *buf, int len1, bool nonblock)
{
int ret, len;
@@ -517,9 +517,14 @@ int send_all(int fd, const void *buf, int len1)
while (len > 0) {
ret = send(fd, buf, len, 0);
if (ret < 0) {
+ if (nonblock && len1 - len) {
+ return len1 - len;
+ }
errno = WSAGetLastError();
if (errno != WSAEWOULDBLOCK) {
return -1;
+ } else if (errno == WSAEWOULDBLOCK && nonblock) {
+ return WSAEWOULDBLOCK;
}
} else if (ret == 0) {
break;
@@ -533,7 +538,7 @@ int send_all(int fd, const void *buf, int len1)
#else
-int send_all(int fd, const void *_buf, int len1)
+static int do_send(int fd, const void *_buf, int len1, bool nonblock)
{
int ret, len;
const uint8_t *buf = _buf;
@@ -542,8 +547,15 @@ int send_all(int fd, const void *_buf, int len1)
while (len > 0) {
ret = write(fd, buf, len);
if (ret < 0) {
- if (errno != EINTR && errno != EAGAIN)
+ if (nonblock && len1 - len) {
+ return len1 - len;
+ }
+ if (errno == EAGAIN && nonblock) {
+ return -EAGAIN;
+ }
+ if (errno != EINTR && errno != EAGAIN) {
return -1;
+ }
} else if (ret == 0) {
break;
} else {
@@ -558,6 +570,44 @@ int send_all(int fd, const void *_buf, int len1)
#define STDIO_MAX_CLIENTS 1
static int stdio_nb_clients;
+int send_all(CharDriverState *chr, int fd, const void *_buf, int len1)
+{
+ int ret, eagain_errno;
+ bool nonblock;
+
+ if (chr && chr->write_blocked) {
+ /*
+ * The caller should not send us data while we're blocked,
+ * but this can happen when multiple writers are woken at once,
+ * so simply return -EAGAIN.
+ */
+ return -EAGAIN;
+ }
+
+ nonblock = false;
+ /*
+ * Ensure the char backend is able to receive and handle the
+ * 'write unblocked' event before we turn on nonblock support.
+ */
+ if (chr && chr->chr_enable_write_fd_handler && chr->chr_write_unblocked) {
+ nonblock = true;
+ }
+ ret = do_send(fd, _buf, len1, nonblock);
+
+#ifdef _WIN32
+ eagain_errno = WSAEWOULDBLOCK;
+#else
+ eagain_errno = -EAGAIN;
+#endif
+
+ if (nonblock && (ret == eagain_errno || (ret >= 0 && ret < len1))) {
+ /* Update fd handler to wake up when chr becomes writable */
+ chr->chr_enable_write_fd_handler(chr);
+ chr->write_blocked = true;
+ }
+ return ret;
+}
+
#ifndef _WIN32
typedef struct {
@@ -569,7 +619,7 @@ typedef struct {
static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
{
FDCharDriver *s = chr->opaque;
- return send_all(s->fd_out, buf, len);
+ return send_all(chr, s->fd_out, buf, len);
}
static int fd_chr_read_poll(void *opaque)
@@ -888,7 +938,7 @@ static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
pty_chr_update_read_handler(chr);
return 0;
}
- return send_all(s->fd, buf, len);
+ return send_all(chr, s->fd, buf, len);
}
static int pty_chr_read_poll(void *opaque)
@@ -2179,8 +2229,15 @@ static void tcp_closed(void *opaque)
static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
{
TCPCharDriver *s = chr->opaque;
+
if (s->connected) {
- return send_all(s->fd, buf, len);
+ int ret;
+
+ ret = send_all(chr, s->fd, buf, len);
+ if (ret == -1 && errno == EPIPE) {
+ tcp_closed(chr);
+ }
+ return ret;
} else {
/* XXX: indicate an error ? */
return len;
diff --git a/qemu_socket.h b/qemu_socket.h
index 02490ad..cceab98 100644
--- a/qemu_socket.h
+++ b/qemu_socket.h
@@ -36,7 +36,7 @@ int qemu_accept(int s, struct sockaddr *addr, socklen_t *addrlen);
int socket_set_cork(int fd, int v);
void socket_set_block(int fd);
void socket_set_nonblock(int fd);
-int send_all(int fd, const void *buf, int len1);
+int send_all(CharDriverState *chr, int fd, const void *buf, int len1);
/* callback function for nonblocking connect
* valid fd on success, negative error code on failure
--
1.8.0

85
0105-char-Equip-the-unix-tcp-backend-to-handle-nonblockin.patch Normal file
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@ -0,0 +1,85 @@
From 26139c9fd71229699c6d59c31631a539ac3830fd Mon Sep 17 00:00:00 2001
Message-Id: <26139c9fd71229699c6d59c31631a539ac3830fd.1354903384.git.crobinso@redhat.com>
In-Reply-To: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
References: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
From: Amit Shah <amit.shah@redhat.com>
Date: Mon, 21 Mar 2011 22:02:47 +0100
Subject: [PATCH] char: Equip the unix/tcp backend to handle nonblocking
writes#
Now that the infrastructure is in place to return -EAGAIN to callers,
individual char drivers can set their update_fd_handlers() function to
set or remove an fd's write handler. This handler checks if the driver
became writable.
A generic callback routine is used for unblocking writes and letting
users of chardevs know that a driver became writable again.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
---
qemu-char.c | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/qemu-char.c b/qemu-char.c
index 53803a3..e7cd42a 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -106,6 +106,19 @@
static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
QTAILQ_HEAD_INITIALIZER(chardevs);
+/*
+ * Generic routine that gets called when chardev becomes writable.
+ * Lets chardev user know it's OK to send more data.
+ */
+static void char_write_unblocked(void *opaque)
+{
+ CharDriverState *chr = opaque;
+
+ chr->write_blocked = false;
+ chr->chr_disable_write_fd_handler(chr);
+ chr->chr_write_unblocked(chr->handler_opaque);
+}
+
void qemu_chr_be_event(CharDriverState *s, int event)
{
/* Keep track if the char device is open */
@@ -2508,6 +2521,25 @@ static void tcp_chr_close(CharDriverState *chr)
qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
}
+static void tcp_enable_write_fd_handler(CharDriverState *chr)
+{
+ TCPCharDriver *s = chr->opaque;
+
+ /*
+ * This function is called only after tcp_chr_connect() is called
+ * (either in 'server' mode or client mode. So we're sure of
+ * s->fd being initialised.
+ */
+ enable_write_fd_handler(s->fd, char_write_unblocked);
+}
+
+static void tcp_disable_write_fd_handler(CharDriverState *chr)
+{
+ TCPCharDriver *s = chr->opaque;
+
+ disable_write_fd_handler(s->fd);
+}
+
static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
{
CharDriverState *chr = NULL;
@@ -2563,6 +2595,8 @@ static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
chr->chr_close = tcp_chr_close;
chr->get_msgfd = tcp_get_msgfd;
chr->chr_add_client = tcp_chr_add_client;
+ chr->chr_enable_write_fd_handler = tcp_enable_write_fd_handler;
+ chr->chr_disable_write_fd_handler = tcp_disable_write_fd_handler;
if (is_listen) {
s->listen_fd = fd;
--
1.8.0

60
0106-char-Throttle-when-host-connection-is-down.patch Normal file
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@ -0,0 +1,60 @@
From c2ddb156db52808a89d91edf5bb1449f226d3ecd Mon Sep 17 00:00:00 2001
Message-Id: <c2ddb156db52808a89d91edf5bb1449f226d3ecd.1354903384.git.crobinso@redhat.com>
In-Reply-To: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
References: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
From: Amit Shah <amit.shah@redhat.com>
Date: Mon, 21 Mar 2011 22:05:10 +0100
Subject: [PATCH] char: Throttle when host connection is down#
When the host-side connection goes down, throttle the virtio-serial bus
and later unthrottle when a connection gets established. This helps
prevent any lost IO (guest->host) while the host connection was down.
Bugzilla: 621484
This commit actually helps the bug mentioned above as no writes will now
get lost because of the throttling done here. With just the patches
sent earlier for that bug, one write will end up getting lost in the
worst case (host d/c, guest write, host connect).
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
---
qemu-char.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/qemu-char.c b/qemu-char.c
index e7cd42a..5c71f0c 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -140,6 +140,9 @@ static void qemu_chr_fire_open_event(void *opaque)
{
CharDriverState *s = opaque;
qemu_chr_be_event(s, CHR_EVENT_OPENED);
+ if (s->write_blocked) {
+ char_write_unblocked(s);
+ }
qemu_free_timer(s->open_timer);
s->open_timer = NULL;
}
@@ -2249,6 +2252,17 @@ static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
ret = send_all(chr, s->fd, buf, len);
if (ret == -1 && errno == EPIPE) {
tcp_closed(chr);
+
+ if (chr->chr_enable_write_fd_handler && chr->chr_write_unblocked) {
+ /*
+ * Since we haven't written out anything, let's say
+ * we're throttled. This will prevent any output from
+ * the guest getting lost if host-side chardev goes
+ * down. Unthrottle when we re-connect.
+ */
+ chr->write_blocked = true;
+ return 0;
+ }
}
return ret;
} else {
--
1.8.0

53
0107-virtio-console-Enable-port-throttling-when-chardev-i.patch Normal file
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@ -0,0 +1,53 @@
From afae0976cf4e3ba7f2810c1afaecac96646a2a2b Mon Sep 17 00:00:00 2001
Message-Id: <afae0976cf4e3ba7f2810c1afaecac96646a2a2b.1354903384.git.crobinso@redhat.com>
In-Reply-To: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
References: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
From: Amit Shah <amit.shah@redhat.com>
Date: Mon, 21 Mar 2011 22:06:41 +0100
Subject: [PATCH] virtio-console: Enable port throttling when chardev is slow
to consume data
When a chardev indicates it can't accept more data, we tell the
virtio-serial code to stop sending us any more data till we tell
otherwise. This helps in guests continuing to run normally while the vq
keeps getting full and eventually the guest stops queueing more data.
As soon as the chardev indicates it can accept more data, start pushing!
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
---
hw/virtio-console.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/hw/virtio-console.c b/hw/virtio-console.c
index 066590c..2b5e515 100644
--- a/hw/virtio-console.c
+++ b/hw/virtio-console.c
@@ -20,6 +20,16 @@ typedef struct VirtConsole {
CharDriverState *chr;
} VirtConsole;
+/*
+ * Callback function that's called from chardevs when backend becomes
+ * writable.
+ */
+static void chr_write_unblocked(void *opaque)
+{
+ VirtConsole *vcon = opaque;
+
+ virtio_serial_throttle_port(&vcon->port, false);
+}
/* Callback function that's called when the guest sends us data */
static ssize_t flush_buf(VirtIOSerialPort *port, const uint8_t *buf, size_t len)
@@ -110,6 +120,7 @@ static const QemuChrHandlers chr_handlers = {
.fd_can_read = chr_can_read,
.fd_read = chr_read,
.fd_event = chr_event,
+ .fd_write_unblocked = chr_write_unblocked,
};
static int virtconsole_initfn(VirtIOSerialPort *port)
--
1.8.0

138
0108-spice-qemu-char.c-add-throttling.patch Normal file
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@ -0,0 +1,138 @@
From bffc95c205b473df9bba81dbf676504d0981d392 Mon Sep 17 00:00:00 2001
Message-Id: <bffc95c205b473df9bba81dbf676504d0981d392.1354903384.git.crobinso@redhat.com>
In-Reply-To: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
References: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
From: Alon Levy <alevy@redhat.com>
Date: Tue, 22 Mar 2011 12:27:59 +0200
Subject: [PATCH] spice-qemu-char.c: add throttling
BZ: 672191
upstream: not submitted (explained below)
Adds throttling support to spicevmc chardev. Uses a timer to avoid recursing:
1. spice-server: reds.c: read_from_vdi_port
2. qemu: spice-qemu-char.c: vmc_read
3. chr_write_unblocked
(calls virtio_serial_throttle_port(port, false))
4. qemu: virtio ...
5. qemu: spice-qemu-char.c: spice_chr_write
6. qemu: spice-qemu-char.c: wakeup (calls into spice-server)
7. spice-server: ...
8. qemu: spice-qemu-char.c: vmc_read
Instead, in vmc_read if we were throttled and we are just about to return
all the bytes we will set a timer to be triggered immediately to call
chr_write_unblocked. Then we return after 2 above, and 3 is called from the
timer callback. This also means we can later remove some ugly recursion protection
from spice-server.
The other tricky point in this patch is not returning the leftover chunk twice.
When we throttle, by definition we have data that spice server didn't consume.
It is being kept by virtio-serial, and by us. The next vmc_read callback needs
to not return it, but just do unthrottling. Then virtio will give us the remaining
chunk as usual in spice_chr_write, and we will pass it to spice server in the
next vmc_read.
This patch relies on Amit's series to expose throttling to chardev's, which
was not accepted upstream, and will not be accepted upstream until the mainloop
is reworked to use glib.
Signed-off-by: Cole Robinson <crobinso@redhat.com>
---
spice-qemu-char.c | 39 +++++++++++++++++++++++++++++++++++----
1 file changed, 35 insertions(+), 4 deletions(-)
diff --git a/spice-qemu-char.c b/spice-qemu-char.c
index 09aa22d..fba2bfb 100644
--- a/spice-qemu-char.c
+++ b/spice-qemu-char.c
@@ -1,4 +1,6 @@
#include "config-host.h"
+#include "qemu-common.h"
+#include "qemu-timer.h"
#include "trace.h"
#include "ui/qemu-spice.h"
#include <spice.h>
@@ -25,6 +27,7 @@ typedef struct SpiceCharDriver {
uint8_t *datapos;
ssize_t bufsize, datalen;
uint32_t debug;
+ QEMUTimer *unblock_timer;
} SpiceCharDriver;
static int vmc_write(SpiceCharDeviceInstance *sin, const uint8_t *buf, int len)
@@ -50,6 +53,17 @@ static int vmc_write(SpiceCharDeviceInstance *sin, const uint8_t *buf, int len)
return out;
}
+static void spice_chr_unblock(void *opaque)
+{
+ SpiceCharDriver *scd = opaque;
+
+ if (scd->chr->chr_write_unblocked == NULL) {
+ dprintf(scd, 1, "%s: backend doesn't support unthrottling.\n", __func__);
+ return;
+ }
+ scd->chr->chr_write_unblocked(scd->chr->handler_opaque);
+}
+
static int vmc_read(SpiceCharDeviceInstance *sin, uint8_t *buf, int len)
{
SpiceCharDriver *scd = container_of(sin, SpiceCharDriver, sin);
@@ -61,9 +75,16 @@ static int vmc_read(SpiceCharDeviceInstance *sin, uint8_t *buf, int len)
scd->datapos += bytes;
scd->datalen -= bytes;
assert(scd->datalen >= 0);
- if (scd->datalen == 0) {
- scd->datapos = 0;
- }
+ }
+ if (scd->datalen == 0 && scd->chr->write_blocked) {
+ dprintf(scd, 1, "%s: unthrottling (%d)\n", __func__, bytes);
+ scd->chr->write_blocked = false;
+ /*
+ * set a timer instead of calling scd->chr->chr_write_unblocked directly,
+ * because that will call back into spice_chr_write (see
+ * virtio-console.c:chr_write_unblocked), which is unwanted.
+ */
+ qemu_mod_timer(scd->unblock_timer, 0);
}
trace_spice_vmc_read(bytes, len);
return bytes;
@@ -135,6 +156,7 @@ static void vmc_unregister_interface(SpiceCharDriver *scd)
static int spice_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
{
SpiceCharDriver *s = chr->opaque;
+ int read_bytes;
dprintf(s, 2, "%s: %d\n", __func__, len);
vmc_register_interface(s);
@@ -147,7 +169,15 @@ static int spice_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
s->datapos = s->buffer;
s->datalen = len;
spice_server_char_device_wakeup(&s->sin);
- return len;
+ read_bytes = len - s->datalen;
+ if (read_bytes != len) {
+ dprintf(s, 1, "%s: throttling: %d < %d (%zd)\n", __func__,
+ read_bytes, len, s->bufsize);
+ s->chr->write_blocked = true;
+ /* We'll get passed in the unconsumed data with the next call */
+ s->datalen = 0;
+ }
+ return read_bytes;
}
static void spice_chr_close(struct CharDriverState *chr)
@@ -225,6 +255,7 @@ CharDriverState *qemu_chr_open_spice(QemuOpts *opts)
chr->chr_close = spice_chr_close;
chr->chr_guest_open = spice_chr_guest_open;
chr->chr_guest_close = spice_chr_guest_close;
+ s->unblock_timer = qemu_new_timer_ms(vm_clock, spice_chr_unblock, s);
#if SPICE_SERVER_VERSION < 0x000901
/* See comment in vmc_state() */
--
1.8.0

76
0109-spice-qemu-char.c-remove-intermediate-buffer.patch Normal file
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@ -0,0 +1,76 @@
From 52b76076caf6f3f92b83a6f34b70417ddcd3d9d7 Mon Sep 17 00:00:00 2001
Message-Id: <52b76076caf6f3f92b83a6f34b70417ddcd3d9d7.1354903384.git.crobinso@redhat.com>
In-Reply-To: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
References: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
From: Alon Levy <alevy@redhat.com>
Date: Tue, 22 Mar 2011 12:28:00 +0200
Subject: [PATCH] spice-qemu-char.c: remove intermediate buffer
BZ: 672191
upstream: not submitted (explained below)
virtio-serial's buffer is valid when it calls us, and we don't
access it otherwise: vmc_read is only called in response to wakeup,
or else we set datalen=0 and throttle. Then vmc_read is called back,
we return 0 (not accessing the buffer) and set the timer to unthrottle.
Also make datalen int and not ssize_t (to fit spice_chr_write signature).
This relied on the previous patch that introduces throttling, which
can't go upstream right now as explained in that patch.
Signed-off-by: Cole Robinson <crobinso@redhat.com>
---
spice-qemu-char.c | 18 ++++++------------
1 file changed, 6 insertions(+), 12 deletions(-)
diff --git a/spice-qemu-char.c b/spice-qemu-char.c
index fba2bfb..ef44bc0 100644
--- a/spice-qemu-char.c
+++ b/spice-qemu-char.c
@@ -23,9 +23,8 @@ typedef struct SpiceCharDriver {
SpiceCharDeviceInstance sin;
char *subtype;
bool active;
- uint8_t *buffer;
- uint8_t *datapos;
- ssize_t bufsize, datalen;
+ const uint8_t *datapos;
+ int datalen;
uint32_t debug;
QEMUTimer *unblock_timer;
} SpiceCharDriver;
@@ -69,7 +68,7 @@ static int vmc_read(SpiceCharDeviceInstance *sin, uint8_t *buf, int len)
SpiceCharDriver *scd = container_of(sin, SpiceCharDriver, sin);
int bytes = MIN(len, scd->datalen);
- dprintf(scd, 2, "%s: %p %d/%d/%zd\n", __func__, scd->datapos, len, bytes, scd->datalen);
+ dprintf(scd, 2, "%s: %p %d/%d/%d\n", __func__, scd->datapos, len, bytes, scd->datalen);
if (bytes > 0) {
memcpy(buf, scd->datapos, bytes);
scd->datapos += bytes;
@@ -161,18 +160,13 @@ static int spice_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
dprintf(s, 2, "%s: %d\n", __func__, len);
vmc_register_interface(s);
assert(s->datalen == 0);
- if (s->bufsize < len) {
- s->bufsize = len;
- s->buffer = g_realloc(s->buffer, s->bufsize);
- }
- memcpy(s->buffer, buf, len);
- s->datapos = s->buffer;
+ s->datapos = buf;
s->datalen = len;
spice_server_char_device_wakeup(&s->sin);
read_bytes = len - s->datalen;
if (read_bytes != len) {
- dprintf(s, 1, "%s: throttling: %d < %d (%zd)\n", __func__,
- read_bytes, len, s->bufsize);
+ dprintf(s, 1, "%s: throttling: %d < %d\n", __func__,
+ read_bytes, len);
s->chr->write_blocked = true;
/* We'll get passed in the unconsumed data with the next call */
s->datalen = 0;
--
1.8.0

69
0110-usb-redir-Add-flow-control-support.patch Normal file
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@ -0,0 +1,69 @@
From 4e6a76dd0e35b00e9592a53afc8cffac4cc35951 Mon Sep 17 00:00:00 2001
Message-Id: <4e6a76dd0e35b00e9592a53afc8cffac4cc35951.1354903384.git.crobinso@redhat.com>
In-Reply-To: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
References: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
From: Hans de Goede <hdegoede@redhat.com>
Date: Tue, 19 Jul 2011 10:56:19 +0200
Subject: [PATCH] usb-redir: Add flow control support
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
---
hw/usb/redirect.c | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)
diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c
index c921d2d..dfb1773 100644
--- a/hw/usb/redirect.c
+++ b/hw/usb/redirect.c
@@ -239,8 +239,9 @@ static int usbredir_read(void *priv, uint8_t *data, int count)
static int usbredir_write(void *priv, uint8_t *data, int count)
{
USBRedirDevice *dev = priv;
+ int r;
- if (!dev->cs->opened) {
+ if (!dev->cs->opened || dev->cs->write_blocked) {
return 0;
}
@@ -249,7 +250,16 @@ static int usbredir_write(void *priv, uint8_t *data, int count)
return 0;
}
- return qemu_chr_fe_write(dev->cs, data, count);
+ r - qemu_chr_fe_write(dev->cs, data, count);
+
+ if (r < 0) {
+ if (dev->cs->write_blocked) {
+ return 0;
+ }
+ return -1;
+ }
+
+ return r;
}
/*
@@ -1037,10 +1047,18 @@ static void usbredir_chardev_event(void *opaque, int event)
}
}
+static void usbredir_chardev_write_unblocked(void *opaque)
+{
+ USBRedirDevice *dev = opaque;
+
+ usbredirparser_do_write(dev->parser);
+}
+
static const QemuChrHandlers usbredir_chr_handlers = {
.fd_can_read = usbredir_chardev_can_read,
.fd_read = usbredir_chardev_read,
.fd_event = usbredir_chardev_event,
+ .fd_write_unblocked = usbredir_chardev_write_unblocked,
};
/*
--
1.8.0

40
0111-char-Disable-write-callback-if-throttled-chardev-is-.patch Normal file
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@ -0,0 +1,40 @@
From 736b3ad749e5c60de44d4c5836b59d2287b6b918 Mon Sep 17 00:00:00 2001
Message-Id: <736b3ad749e5c60de44d4c5836b59d2287b6b918.1354903384.git.crobinso@redhat.com>
In-Reply-To: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
References: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
From: Amit Shah <amit.shah@redhat.com>
Date: Fri, 2 Dec 2011 15:42:55 +0530
Subject: [PATCH] char: Disable write callback if throttled chardev is
detached
If a throttled chardev is detached from the frontend device, all future
callbacks should be suppressed. Not doing this results in a segfault.
Bugzilla: 745758
Upstream: Not applicable, since throttling is a RHEL6-only feature.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
---
qemu-char.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/qemu-char.c b/qemu-char.c
index 5c71f0c..16ad6b6 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -224,6 +224,11 @@ void qemu_chr_add_handlers(CharDriverState *s,
++s->avail_connections;
}
if (!handlers) {
+ if (s->write_blocked) {
+ /* Ensure we disable the callback if we were throttled */
+ s->chr_disable_write_fd_handler(s);
+ /* s->write_blocked is cleared below */
+ }
handlers = &null_handlers;
}
s->chr_can_read = handlers->fd_can_read;
--
1.8.0

57
0112-hw-virtio-serial-bus-replay-guest-open-on-destinatio.patch Normal file
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@ -0,0 +1,57 @@
From 1f54fab0e8f692986254b69c607f4151d9743260 Mon Sep 17 00:00:00 2001
Message-Id: <1f54fab0e8f692986254b69c607f4151d9743260.1354903384.git.crobinso@redhat.com>
In-Reply-To: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
References: <9f0944a25bc1094fa7a74ac9df14e184e2c5c82d.1354903384.git.crobinso@redhat.com>
From: Alon Levy <alevy@redhat.com>
Date: Fri, 16 Nov 2012 16:24:47 +0200
Subject: [PATCH] hw/virtio-serial-bus: replay guest open on destination
This is rewrite of a patch carried in Fedora previously based
on new code upstream, here is the original message, it still applies:
(the original fedora patch was commit id
a9bc20afc1f0604ee81c23b7c67d627e51d2e8d4, this is useful for grepping in
logs, it isn't in upstream)
When migrating a host with with a spice agent running the mouse becomes
non operational after the migration. This is rhbz #725965.
The problem is that after migration spice doesn't know the guest agent
is open. Spice is just a char dev here. And a chardev cannot query it's
device, the device has to let the chardev know when it is open. Right
now after migration the chardev which is recreated is in it's default
state, which assumes the guest is disconnected.
Char devices carry no information across migration, but the
virtio-serial does already carry the guest_connected state. This patch
passes that bit to the chardev.
---
hw/virtio-serial-bus.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/hw/virtio-serial-bus.c b/hw/virtio-serial-bus.c
index 155da58..fd19984 100644
--- a/hw/virtio-serial-bus.c
+++ b/hw/virtio-serial-bus.c
@@ -641,6 +641,7 @@ static void virtio_serial_post_load_timer_cb(void *opaque)
VirtIOSerial *s = opaque;
VirtIOSerialPort *port;
uint8_t host_connected;
+ VirtIOSerialPortClass *vsc;
for (i = 0 ; i < s->post_load.nr_active_ports; ++i) {
port = s->post_load.connected[i].port;
@@ -653,6 +654,11 @@ static void virtio_serial_post_load_timer_cb(void *opaque)
send_control_event(port, VIRTIO_CONSOLE_PORT_OPEN,
port->host_connected);
}
+ vsc = VIRTIO_SERIAL_PORT_GET_CLASS(port);
+ if (port->guest_connected && vsc->guest_open) {
+ /* replay guest open */
+ vsc->guest_open(port);
+ }
}
g_free(s->post_load.connected);
s->post_load.connected = NULL;
--
1.8.0

44
qemu.spec
View File

@ -137,6 +137,25 @@ ExclusiveArch: %{kvm_archs}
%endif
Source0: http://wiki.qemu-project.org/download/%{name}-%{version}.tar.bz2
# libcacard build fixes (heading upstream)
Patch1: 0000-libcacard-fix-missing-symbols-in-libcacard.so.patch
Patch2: 0001-configure-move-vscclient-binary-under-libcacard.patch
# Fix migration from qemu-kvm 1.2 to qemu 1.3
Patch3: 0002-Fix-migration-from-qemu-kvm-1.2.patch
# Flow control series
Patch4: 0100-char-Split-out-tcp-socket-close-code-in-a-separate-f.patch
Patch5: 0101-char-Add-a-QemuChrHandlers-struct-to-initialise-char.patch
Patch6: 0102-iohandlers-Add-enable-disable_write_fd_handler-funct.patch
Patch7: 0103-char-Add-framework-for-a-write-unblocked-callback.patch
Patch8: 0104-char-Update-send_all-to-handle-nonblocking-chardev-w.patch
Patch9: 0105-char-Equip-the-unix-tcp-backend-to-handle-nonblockin.patch
Patch10: 0106-char-Throttle-when-host-connection-is-down.patch
Patch11: 0107-virtio-console-Enable-port-throttling-when-chardev-i.patch
Patch12: 0108-spice-qemu-char.c-add-throttling.patch
Patch13: 0109-spice-qemu-char.c-remove-intermediate-buffer.patch
Patch14: 0110-usb-redir-Add-flow-control-support.patch
Patch15: 0111-char-Disable-write-callback-if-throttled-chardev-is-.patch
Patch16: 0112-hw-virtio-serial-bus-replay-guest-open-on-destinatio.patch
Source1: qemu.binfmt
@ -607,6 +626,22 @@ CAC emulation development files.
%prep
%setup -q
%patch1 -p1
%patch2 -p1
%patch3 -p1
%patch4 -p1
%patch5 -p1
%patch6 -p1
%patch7 -p1
%patch8 -p1
%patch9 -p1
%patch10 -p1
%patch11 -p1
%patch12 -p1
%patch13 -p1
%patch14 -p1
%patch15 -p1
%patch16 -p1
%build
@ -1225,6 +1260,15 @@ fi
%{_libdir}/pkgconfig/libcacard.pc
%changelog
* Fri Dec 07 2012 Cole Robinson <crobinso@redhat.com> - 2:1.3.0-1
- Switch base tarball from qemu-kvm to qemu
- qemu 1.3 release
- Option to use linux VFIO driver to assign PCI devices
- Many USB3 improvements
- New paravirtualized hardware random number generator device.
- Support for Glusterfs volumes with "gluster://" -drive URI
- Block job commands for live block commit and storage migration
* Wed Nov 28 2012 Alon Levy <alevy@redhat.com> - 2:1.2.0-25
* Merge libcacard into qemu, since they both use the same sources now.

2
sources
View File

@ -1 +1 @@
d7b18b673c48abfee65a9c0245df0415 qemu-kvm-1.2.0.tar.gz
a4030ddd2ba324152a97d65d3c0b247d qemu-1.3.0.tar.bz2