stubdom/libs-*
stubdom/libxc-*
stubdom/libxenevtchn-*
+stubdom/libxengnttab-*
stubdom/libxentoollog-*
stubdom/lwip-*
stubdom/lwip/
config/Docs.mk
tools/libs/toollog/headers.chk
tools/libs/evtchn/headers.chk
+tools/libs/gnttab/headers.chk
tools/blktap2/daemon/blktapctrl
tools/blktap2/drivers/img2qcow
tools/blktap2/drivers/lock-util
endif
OVMF_UPSTREAM_REVISION ?= 52a99493cce88a9d4ec8a02d7f1bd1a1001ce60d
QEMU_UPSTREAM_REVISION ?= master
-MINIOS_UPSTREAM_REVISION ?= fb66c855c983aa07644cb179fd9bfe96d55f317d
-# Fri Jan 15 13:24:00 2016 +0000
-# mini-os: Include libxenevtchn with libxc
+MINIOS_UPSTREAM_REVISION ?= 9faa4c3b862291315912b81fe1d4ccca800f530d
+# Fri Jan 15 13:24:01 2016 +0000
+# mini-os: Include libxengnttab with libxc
SEABIOS_UPSTREAM_REVISION ?= 3403ac4313812752be6e6aac35239ca6888a8cab
# Mon Dec 28 13:50:41 2015 +0100
ETHERBOOT_NICS ?= rtl8139 8086100e
-QEMU_TRADITIONAL_REVISION ?= ca2ff968de42d47dcda8973aa1528a14f99992d3
-# Fri Jan 15 13:23:53 2016 +0000
-# qemu-xen-traditional: Use libxenevtchn
+QEMU_TRADITIONAL_REVISION ?= d8b5666074fdbc4ddba5283d70898a2edd785028
+# Fri Jan 15 13:23:54 2016 +0000
+# qemu-xen-traditional: Use libxengnttab
# Specify which qemu-dm to use. This may be `ioemu' to use the old
# Mercurial in-tree version, or a local directory, or a git URL.
ln -sf $(XEN_ROOT)/tools/libs/evtchn/include/*.h include/ && \
ln -sf $(XEN_ROOT)/tools/libs/evtchn/*.c . && \
ln -sf $(XEN_ROOT)/tools/libs/evtchn/Makefile . )
+ mkdir -p libs-$(XEN_TARGET_ARCH)/gnttab/include
+ [ -h libs-$(XEN_TARGET_ARCH)/gnttab/Makefile ] || ( cd libs-$(XEN_TARGET_ARCH)/gnttab && \
+ ln -sf $(XEN_ROOT)/tools/libs/gnttab/*.h . && \
+ ln -sf $(XEN_ROOT)/tools/libs/gnttab/include/*.h include/ && \
+ ln -sf $(XEN_ROOT)/tools/libs/gnttab/*.c . && \
+ ln -sf $(XEN_ROOT)/tools/libs/gnttab/Makefile . )
mkdir -p libxc-$(XEN_TARGET_ARCH)
[ -h libxc-$(XEN_TARGET_ARCH)/Makefile ] || ( cd libxc-$(XEN_TARGET_ARCH) && \
ln -sf $(XEN_ROOT)/tools/libxc/*.h . && \
libs-$(XEN_TARGET_ARCH)/evtchn/libxenevtchn.a: mk-headers-$(XEN_TARGET_ARCH) $(NEWLIB_STAMPFILE)
CPPFLAGS="$(TARGET_CPPFLAGS)" CFLAGS="$(TARGET_CFLAGS)" $(MAKE) DESTDIR= -C libs-$(XEN_TARGET_ARCH)/evtchn
+#######
+# libxengnttab
+#######
+
+.PHONY: libxengnttab
+libxengnttab: libs-$(XEN_TARGET_ARCH)/gnttab/libxengnttab.a
+libs-$(XEN_TARGET_ARCH)/gnttab/libxengnttab.a: mk-headers-$(XEN_TARGET_ARCH) $(NEWLIB_STAMPFILE)
+ CPPFLAGS="$(TARGET_CPPFLAGS)" CFLAGS="$(TARGET_CFLAGS)" $(MAKE) DESTDIR= -C libs-$(XEN_TARGET_ARCH)/gnttab
+
#######
# libxc
#######
.PHONY: libxc
libxc: libxc-$(XEN_TARGET_ARCH)/libxenctrl.a libxc-$(XEN_TARGET_ARCH)/libxenguest.a
-libxc-$(XEN_TARGET_ARCH)/libxenctrl.a: mk-headers-$(XEN_TARGET_ARCH) libxentoollog libxenevtchn cross-zlib
+libxc-$(XEN_TARGET_ARCH)/libxenctrl.a: mk-headers-$(XEN_TARGET_ARCH) libxentoollog libxenevtchn libxengnttab cross-zlib
CPPFLAGS="$(TARGET_CPPFLAGS)" CFLAGS="$(TARGET_CFLAGS)" $(MAKE) DESTDIR= CONFIG_LIBXC_MINIOS=y -C libxc-$(XEN_TARGET_ARCH)
libxc-$(XEN_TARGET_ARCH)/libxenguest.a: libxc-$(XEN_TARGET_ARCH)/libxenctrl.a
--includedir=$(LIBEXEC_INC) \
--source-path=$$source \
--extra-cflags="-DXC_WANT_COMPAT_EVTCHN_API=1 \
+ -DXC_WANT_COMPAT_GNTTAB_API=1 \
-I$(XEN_ROOT)/tools/include \
-I$(XEN_ROOT)/tools/libs/toollog/include \
-I$(XEN_ROOT)/tools/libs/evtchn/include \
+ -I$(XEN_ROOT)/tools/libs/gnttab/include \
-I$(XEN_ROOT)/tools/libxc/include \
-I$(XEN_ROOT)/tools/xenstore/include \
-I$(XEN_ROOT)/tools/xenstore/compat/include \
-L$(XEN_ROOT)/tools/xenstore \
-Wl,-rpath-link=$(XEN_ROOT)/tools/libs/toollog \
-Wl,-rpath-link=$(XEN_ROOT)/tools/libs/evtchn \
+ -Wl,-rpath-link=$(XEN_ROOT)/tools/libs/gnttab \
$(QEMU_UPSTREAM_RPATH)" \
--bindir=$(LIBEXEC_BIN) \
--datadir=$(SHAREDIR)/qemu-xen \
XEN_INCLUDE = $(XEN_ROOT)/tools/include
XEN_LIBXENTOOLLOG = $(XEN_ROOT)/tools/libs/toollog
XEN_LIBXENEVTCHN = $(XEN_ROOT)/tools/libs/evtchn
+XEN_LIBXENGNTTAB = $(XEN_ROOT)/tools/libs/gnttab
XEN_LIBXC = $(XEN_ROOT)/tools/libxc
XEN_XENLIGHT = $(XEN_ROOT)/tools/libxl
XEN_XENSTORE = $(XEN_ROOT)/tools/xenstore
LDLIBS_libxenevtchn = $(XEN_LIBXENEVTCHN)/libxenevtchn$(libextension)
SHLIB_libxenevtchn = -Wl,-rpath-link=$(XEN_LIBXENEVTCHN)
+CFLAGS_libxengnttab = -I$(XEN_LIBXENGNTTAB)/include $(CFLAGS_xeninclude)
+LDLIBS_libxengnttab = $(XEN_LIBXENGNTTAB)/libxengnttab$(libextension)
+SHLIB_libxengnttab = -Wl,-rpath-link=$(XEN_LIBXENGNTTAB)
+
+# xengntshr_* interfaces are actually part of libxengnttab.so
+CFLAGS_libxengntshr = -I$(XEN_LIBXENGNTTAB)/include $(CFLAGS_xeninclude)
+LDLIBS_libxengntshr = $(XEN_LIBXENGNTTAB)/libxengnttab$(libextension)
+SHLIB_libxengntshr = -Wl,-rpath-link=$(XEN_LIBXENGNTTAB)
+
CFLAGS_libxenctrl = -I$(XEN_LIBXC)/include $(CFLAGS_libxentoollog) $(CFLAGS_xeninclude)
-SHDEPS_libxenctrl = $(SHLIB_libxentoollog) $(SHLIB_libxenevtchn)
+SHDEPS_libxenctrl = $(SHLIB_libxentoollog) $(SHLIB_libxenevtchn) $(SHLIB_libxengnttab) $(SHLIB_libxengntshr)
LDLIBS_libxenctrl = $(SHDEPS_libxenctrl) $(XEN_LIBXC)/libxenctrl$(libextension)
SHLIB_libxenctrl = $(SHDEPS_libxenctrl) -Wl,-rpath-link=$(XEN_LIBXC)
SHLIB_libxenstat = $(SHDEPS_libxenstat) -Wl,-rpath-link=$(XEN_LIBXENSTAT)
CFLAGS_libxenvchan = -I$(XEN_LIBVCHAN)
-SHDEPS_libxenvchan = $(SHLIB_libxenctrl) $(SHLIB_libxenstore) $(SHLIB_libxenevtchn)
+SHDEPS_libxenvchan = $(SHLIB_libxentoollog) $(SHLIB_libxenstore) $(SHLIB_libxenevtchn) $(SHLIB_libxengnttab) $(SHLIB_libxengntshr)
LDLIBS_libxenvchan = $(SHDEPS_libxenvchan) $(XEN_LIBVCHAN)/libxenvchan$(libextension)
SHLIB_libxenvchan = $(SHDEPS_libxenvchan) -Wl,-rpath-link=$(XEN_LIBVCHAN)
CFLAGS += -Werror
-CFLAGS += $(CFLAGS_libxenevtchn)
CFLAGS += $(CFLAGS_libxenctrl)
CFLAGS += $(CFLAGS_libxenstore)
-LDLIBS += $(LDLIBS_libxenevtchn)
LDLIBS += $(LDLIBS_libxenctrl)
LDLIBS += $(LDLIBS_libxenstore)
LDLIBS += $(SOCKET_LIBS)
.PHONY: distclean
distclean: clean
+daemon/io.o: CFLAGS += $(CFLAGS_libxenevtchn) $(CFLAGS_libxengnttab)
xenconsoled: $(patsubst %.c,%.o,$(wildcard daemon/*.c))
- $(CC) $(LDFLAGS) $^ -o $@ $(LDLIBS) $(LDLIBS_xenconsoled) $(APPEND_LDFLAGS)
+ $(CC) $(LDFLAGS) $^ -o $@ $(LDLIBS) $(LDLIBS_libxenevtchn) $(LDLIBS_libxengnttab) $(LDLIBS_xenconsoled) $(APPEND_LDFLAGS)
xenconsole: client/_paths.h $(patsubst %.c,%.o,$(wildcard client/*.c))
$(CC) $(LDFLAGS) $^ -o $@ $(LDLIBS) $(LDLIBS_xenconsole) $(APPEND_LDFLAGS)
#include "utils.h"
#include "io.h"
#include <xenevtchn.h>
+#include <xengnttab.h>
#include <xenstore.h>
#include <xen/io/console.h>
#include <xen/grant_table.h>
static int log_time_guest_needts = 1;
static int log_hv_fd = -1;
-static xc_gnttab *xcg_handle = NULL;
+static xengnttab_handle *xgt_handle = NULL;
static struct pollfd *fds;
static unsigned int current_array_size;
{
if (dom->interface == NULL)
return;
- if (xcg_handle && dom->ring_ref == -1)
- xc_gnttab_munmap(xcg_handle, dom->interface, 1);
+ if (xgt_handle && dom->ring_ref == -1)
+ xengnttab_unmap(xgt_handle, dom->interface, 1);
else
munmap(dom->interface, XC_PAGE_SIZE);
dom->interface = NULL;
if (ring_ref != dom->ring_ref && dom->ring_ref != -1)
domain_unmap_interface(dom);
- if (!dom->interface && xcg_handle) {
+ if (!dom->interface && xgt_handle) {
/* Prefer using grant table */
- dom->interface = xc_gnttab_map_grant_ref(xcg_handle,
+ dom->interface = xengnttab_map_grant_ref(xgt_handle,
dom->domid, GNTTAB_RESERVED_CONSOLE,
PROT_READ|PROT_WRITE);
dom->ring_ref = -1;
handle_hv_logs(xce_handle, true);
}
- xcg_handle = xc_gnttab_open(NULL, 0);
- if (xcg_handle == NULL) {
+ xgt_handle = xengnttab_open(NULL, 0);
+ if (xgt_handle == NULL) {
dolog(LOG_DEBUG, "Failed to open xcg handle: %d (%s)",
errno, strerror(errno));
}
xenevtchn_close(xce_handle);
xce_handle = NULL;
}
- if (xcg_handle != NULL) {
- xc_gnttab_close(xcg_handle);
- xcg_handle = NULL;
+ if (xgt_handle != NULL) {
+ xengnttab_close(xgt_handle);
+ xgt_handle = NULL;
}
log_hv_evtchn = -1;
}
SUBDIRS-y :=
SUBDIRS-y += toollog
SUBDIRS-y += evtchn
+SUBDIRS-y += gnttab
all clean install distclean: %: subdirs-%
#include <mini-os/events.h>
#include <mini-os/wait.h>
-#include <sys/socket.h>
-
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdint.h>
+#include <unistd.h>
#include <inttypes.h>
#include <malloc.h>
extern struct wait_queue_head event_queue;
-//void minios_evtchn_close_fd(int fd);
-
/* XXX Note: This is not threadsafe */
static struct evtchn_port_info* port_alloc(int fd) {
struct evtchn_port_info *port_info;
--- /dev/null
+XEN_ROOT = $(CURDIR)/../../..
+include $(XEN_ROOT)/tools/Rules.mk
+
+MAJOR = 1
+MINOR = 0
+SHLIB_LDFLAGS += -Wl,--version-script=libxengnttab.map
+
+CFLAGS += -Werror -Wmissing-prototypes
+CFLAGS += -I./include $(CFLAGS_xeninclude)
+CFLAGS += $(CFLAGS_libxentoollog)
+
+SRCS-GNTTAB += gnttab_core.c
+SRCS-GNTSHR += gntshr_core.c
+
+SRCS-$(CONFIG_Linux) += $(SRCS-GNTTAB) $(SRCS-GNTSHR) linux.c
+SRCS-$(CONFIG_MiniOS) += $(SRCS-GNTTAB) gntshr_unimp.c minios.c
+SRCS-$(CONFIG_FreeBSD) += gnttab_unimp.c gntshr_unimp.c
+SRCS-$(CONFIG_SunOS) += gnttab_unimp.c gntshr_unimp.c
+SRCS-$(CONFIG_NetBSD) += gnttab_unimp.c gntshr_unimp.c
+
+LIB_OBJS := $(patsubst %.c,%.o,$(SRCS-y))
+PIC_OBJS := $(patsubst %.c,%.opic,$(SRCS-y))
+
+LIB := libxengnttab.a
+ifneq ($(nosharedlibs),y)
+LIB += libxengnttab.so
+endif
+
+.PHONY: all
+all: build
+
+.PHONY: build
+build:
+ $(MAKE) libs
+
+.PHONY: libs
+libs: headers.chk $(LIB)
+
+headers.chk: $(wildcard include/*.h)
+
+libxengnttab.a: $(LIB_OBJS)
+ $(AR) rc $@ $^
+
+libxengnttab.so: libxengnttab.so.$(MAJOR)
+ $(SYMLINK_SHLIB) $< $@
+libxengnttab.so.$(MAJOR): libxengnttab.so.$(MAJOR).$(MINOR)
+ $(SYMLINK_SHLIB) $< $@
+
+libxengnttab.so.$(MAJOR).$(MINOR): $(PIC_OBJS) libxengnttab.map
+ $(CC) $(LDFLAGS) -Wl,$(SONAME_LDFLAG) -Wl,libxengnttab.so.$(MAJOR) $(SHLIB_LDFLAGS) -o $@ $(PIC_OBJS) $(LDLIBS_libxentoollog) $(APPEND_LDFLAGS)
+
+.PHONY: install
+install: build
+ $(INSTALL_DIR) $(DESTDIR)$(libdir)
+ $(INSTALL_DIR) $(DESTDIR)$(includedir)
+ $(INSTALL_SHLIB) libxengnttab.so.$(MAJOR).$(MINOR) $(DESTDIR)$(libdir)
+ $(INSTALL_DATA) libxengnttab.a $(DESTDIR)$(libdir)
+ $(SYMLINK_SHLIB) libxengnttab.so.$(MAJOR).$(MINOR) $(DESTDIR)$(libdir)/libxengnttab.so.$(MAJOR)
+ $(SYMLINK_SHLIB) libxengnttab.so.$(MAJOR) $(DESTDIR)$(libdir)/libxengnttab.so
+ $(INSTALL_DATA) include/xengnttab.h $(DESTDIR)$(includedir)
+
+.PHONY: TAGS
+TAGS:
+ etags -t *.c *.h
+
+.PHONY: clean
+clean:
+ rm -rf *.rpm $(LIB) *~ $(DEPS) $(LIB_OBJS) $(PIC_OBJS)
+ rm -f libxengnttab.so.$(MAJOR).$(MINOR) libxengnttab.so.$(MAJOR)
+ rm -f headers.chk
+
+.PHONY: distclean
+distclean: clean
--- /dev/null
+/******************************************************************************
+ *
+ * Copyright (c) 2007-2008, D G Murray <Derek.Murray@cl.cam.ac.uk>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Split out from xc_gnttab.c
+ */
+
+#include <stdlib.h>
+
+#include "private.h"
+
+xengntshr_handle *xengntshr_open(xentoollog_logger *logger, unsigned open_flags)
+{
+ xengntshr_handle *xgs = malloc(sizeof(*xgs));
+ int rc;
+
+ if (!xgs) return NULL;
+
+ xgs->fd = -1;
+ xgs->logger = logger;
+ xgs->logger_tofree = NULL;
+
+ if (!xgs->logger) {
+ xgs->logger = xgs->logger_tofree =
+ (xentoollog_logger*)
+ xtl_createlogger_stdiostream(stderr, XTL_PROGRESS, 0);
+ if (!xgs->logger) goto err;
+ }
+
+ rc = osdep_gntshr_open(xgs);
+ if ( rc < 0 ) goto err;
+
+ return xgs;
+
+err:
+ osdep_gntshr_close(xgs);
+ xtl_logger_destroy(xgs->logger_tofree);
+ free(xgs);
+ return NULL;
+}
+
+int xengntshr_close(xengntshr_handle *xgs)
+{
+ int rc;
+
+ if ( !xgs )
+ return 0;
+
+ rc = osdep_gntshr_close(xgs);
+ xtl_logger_destroy(xgs->logger_tofree);
+ free(xgs);
+ return rc;
+}
+void *xengntshr_share_pages(xengntshr_handle *xcg, uint32_t domid,
+ int count, uint32_t *refs, int writable)
+{
+ return osdep_gntshr_share_pages(xcg, domid, count, refs, writable, -1, -1);
+}
+
+void *xengntshr_share_page_notify(xengntshr_handle *xcg, uint32_t domid,
+ uint32_t *ref, int writable,
+ uint32_t notify_offset,
+ evtchn_port_t notify_port)
+{
+ return osdep_gntshr_share_pages(xcg, domid, 1, ref, writable,
+ notify_offset, notify_port);
+}
+
+int xengntshr_unshare(xengntshr_handle *xgs, void *start_address, uint32_t count)
+{
+ return osdep_gntshr_unshare(xgs, start_address, count);
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
--- /dev/null
+/******************************************************************************
+ *
+ * Copyright (c) 2007-2008, D G Murray <Derek.Murray@cl.cam.ac.uk>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Split out from xc_gnttab.c
+ */
+
+#include <stdlib.h>
+
+#include "private.h"
+
+xengntshr_handle *xengntshr_open(xentoollog_logger *logger, unsigned open_flags)
+{
+ return NULL;
+}
+
+int xengntshr_close(xengntshr_handle *xgs)
+{
+ return 0;
+}
+
+void *xengntshr_share_pages(xengntshr_handle *xcg, uint32_t domid,
+ int count, uint32_t *refs, int writable)
+{
+ abort();
+}
+
+void *xengntshr_share_page_notify(xengntshr_handle *xcg, uint32_t domid,
+ uint32_t *ref, int writable,
+ uint32_t notify_offset,
+ evtchn_port_t notify_port)
+{
+ abort();
+}
+
+int xengntshr_unshare(xengntshr_handle *xgs, void *start_address, uint32_t count)
+{
+ abort();
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
--- /dev/null
+/******************************************************************************
+ *
+ * Copyright (c) 2007-2008, D G Murray <Derek.Murray@cl.cam.ac.uk>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Split out from xc_gnttab.c
+ */
+
+#include <stdlib.h>
+
+#include "private.h"
+
+xengnttab_handle *xengnttab_open(xentoollog_logger *logger, unsigned open_flags)
+{
+ xengnttab_handle *xgt = malloc(sizeof(*xgt));
+ int rc;
+
+ if (!xgt) return NULL;
+
+ xgt->fd = -1;
+ xgt->logger = logger;
+ xgt->logger_tofree = NULL;
+
+ if (!xgt->logger) {
+ xgt->logger = xgt->logger_tofree =
+ (xentoollog_logger*)
+ xtl_createlogger_stdiostream(stderr, XTL_PROGRESS, 0);
+ if (!xgt->logger) goto err;
+ }
+
+ rc = osdep_gnttab_open(xgt);
+ if ( rc < 0 ) goto err;
+
+ return xgt;
+
+err:
+ osdep_gnttab_close(xgt);
+ xtl_logger_destroy(xgt->logger_tofree);
+ free(xgt);
+ return NULL;
+}
+
+int xengnttab_close(xengnttab_handle *xgt)
+{
+ int rc;
+
+ if ( !xgt )
+ return 0;
+
+ rc = osdep_gnttab_close(xgt);
+ xtl_logger_destroy(xgt->logger_tofree);
+ free(xgt);
+ return rc;
+}
+
+int xengnttab_set_max_grants(xengnttab_handle *xgt, uint32_t count)
+{
+ return osdep_gnttab_set_max_grants(xgt, count);
+}
+
+void *xengnttab_map_grant_ref(xengnttab_handle *xgt,
+ uint32_t domid,
+ uint32_t ref,
+ int prot)
+{
+ return osdep_gnttab_grant_map(xgt, 1, 0, prot, &domid, &ref, -1, -1);
+}
+
+void *xengnttab_map_grant_refs(xengnttab_handle *xgt,
+ uint32_t count,
+ uint32_t *domids,
+ uint32_t *refs,
+ int prot)
+{
+ return osdep_gnttab_grant_map(xgt, count, 0, prot, domids, refs, -1, -1);
+}
+
+void *xengnttab_map_domain_grant_refs(xengnttab_handle *xgt,
+ uint32_t count,
+ uint32_t domid,
+ uint32_t *refs,
+ int prot)
+{
+ return osdep_gnttab_grant_map(xgt, count, XENGNTTAB_GRANT_MAP_SINGLE_DOMAIN,
+ prot, &domid, refs, -1, -1);
+}
+
+void *xengnttab_map_grant_ref_notify(xengnttab_handle *xgt,
+ uint32_t domid,
+ uint32_t ref,
+ int prot,
+ uint32_t notify_offset,
+ evtchn_port_t notify_port)
+{
+ return osdep_gnttab_grant_map(xgt, 1, 0, prot, &domid, &ref,
+ notify_offset, notify_port);
+}
+
+int xengnttab_unmap(xengnttab_handle *xgt, void *start_address, uint32_t count)
+{
+ return osdep_gnttab_unmap(xgt, start_address, count);
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
--- /dev/null
+/******************************************************************************
+ *
+ * Copyright (c) 2007-2008, D G Murray <Derek.Murray@cl.cam.ac.uk>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Split out from xc_gnttab.c
+ */
+
+#include <stdlib.h>
+
+#include "private.h"
+
+xengnttab_handle *xengnttab_open(xentoollog_logger *logger, unsigned open_flags)
+{
+ return NULL;
+}
+
+int xengnttab_close(xengnttab_handle *xgt)
+{
+ return 0;
+}
+
+int xengnttab_set_max_grants(xengnttab_handle *xgt, uint32_t count)
+{
+ abort();
+}
+
+void *xengnttab_map_grant_ref(xengnttab_handle *xgt,
+ uint32_t domid,
+ uint32_t ref,
+ int prot)
+{
+ abort();
+}
+
+void *xengnttab_map_grant_refs(xengnttab_handle *xgt,
+ uint32_t count,
+ uint32_t *domids,
+ uint32_t *refs,
+ int prot)
+{
+ abort();
+}
+
+void *xengnttab_map_domain_grant_refs(xengnttab_handle *xgt,
+ uint32_t count,
+ uint32_t domid,
+ uint32_t *refs,
+ int prot)
+{
+ abort();
+}
+
+void *xengnttab_map_grant_ref_notify(xengnttab_handle *xgt,
+ uint32_t domid,
+ uint32_t ref,
+ int prot,
+ uint32_t notify_offset,
+ evtchn_port_t notify_port)
+{
+ abort();
+}
+
+int xengnttab_unmap(xengnttab_handle *xgt, void *start_address, uint32_t count)
+{
+ abort();
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
--- /dev/null
+/*
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Split off from:
+ * xenctrl.h
+ *
+ * A library for low-level access to the Xen control interfaces.
+ *
+ * Copyright (c) 2007-2008, D G Murray <Derek.Murray@cl.cam.ac.uk>
+ */
+#ifndef XENGNTTAB_H
+#define XENGNTTAB_H
+
+#include <stdint.h>
+
+#include <xen/grant_table.h>
+#include <xen/event_channel.h>
+
+/* Callers who don't care don't need to #include <xentoollog.h> */
+typedef struct xentoollog_logger xentoollog_logger;
+
+/*
+ * Grant Table Interface (making use of grants from other domains)
+ */
+
+typedef struct xengntdev_handle xengnttab_handle;
+
+/*
+ * Note:
+ * After fork a child process must not use any opened xc gnttab
+ * handle inherited from their parent. They must open a new handle if
+ * they want to interact with xc.
+ *
+ * Return an fd onto the grant table driver. Logs errors.
+ */
+xengnttab_handle *xengnttab_open(xentoollog_logger *logger, unsigned open_flags);
+
+/*
+ * Close a handle previously allocated with xengnttab_open().
+ * Never logs errors.
+ */
+int xengnttab_close(xengnttab_handle *xgt);
+
+/*
+ * Memory maps a grant reference from one domain to a local address range.
+ * Mappings should be unmapped with xengnttab_unmap. Logs errors.
+ *
+ * @parm xgt a handle on an open grant table interface
+ * @parm domid the domain to map memory from
+ * @parm ref the grant reference ID to map
+ * @parm prot same flag as in mmap()
+ */
+void *xengnttab_map_grant_ref(xengnttab_handle *xgt,
+ uint32_t domid,
+ uint32_t ref,
+ int prot);
+
+/**
+ * Memory maps one or more grant references from one or more domains to a
+ * contiguous local address range. Mappings should be unmapped with
+ * xengnttab_unmap. Logs errors.
+ *
+ * @parm xgt a handle on an open grant table interface
+ * @parm count the number of grant references to be mapped
+ * @parm domids an array of @count domain IDs by which the corresponding @refs
+ * were granted
+ * @parm refs an array of @count grant references to be mapped
+ * @parm prot same flag as in mmap()
+ */
+void *xengnttab_map_grant_refs(xengnttab_handle *xgt,
+ uint32_t count,
+ uint32_t *domids,
+ uint32_t *refs,
+ int prot);
+
+/**
+ * Memory maps one or more grant references from one domain to a
+ * contiguous local address range. Mappings should be unmapped with
+ * xengnttab_unmap. Logs errors.
+ *
+ * @parm xgt a handle on an open grant table interface
+ * @parm count the number of grant references to be mapped
+ * @parm domid the domain to map memory from
+ * @parm refs an array of @count grant references to be mapped
+ * @parm prot same flag as in mmap()
+ */
+void *xengnttab_map_domain_grant_refs(xengnttab_handle *xgt,
+ uint32_t count,
+ uint32_t domid,
+ uint32_t *refs,
+ int prot);
+
+/**
+ * Memory maps a grant reference from one domain to a local address range.
+ * Mappings should be unmapped with xengnttab_unmap. If notify_offset or
+ * notify_port are not -1, this version will attempt to set up an unmap
+ * notification at the given offset and event channel. When the page is
+ * unmapped, the byte at the given offset will be zeroed and a wakeup will be
+ * sent to the given event channel. Logs errors.
+ *
+ * @parm xgt a handle on an open grant table interface
+ * @parm domid the domain to map memory from
+ * @parm ref the grant reference ID to map
+ * @parm prot same flag as in mmap()
+ * @parm notify_offset The byte offset in the page to use for unmap
+ * notification; -1 for none.
+ * @parm notify_port The event channel port to use for unmap notify, or -1
+ */
+void *xengnttab_map_grant_ref_notify(xengnttab_handle *xgt,
+ uint32_t domid,
+ uint32_t ref,
+ int prot,
+ uint32_t notify_offset,
+ evtchn_port_t notify_port);
+
+/*
+ * Unmaps the @count pages starting at @start_address, which were mapped by a
+ * call to xengnttab_map_grant_ref or xengnttab_map_grant_refs. Never logs.
+ */
+int xengnttab_unmap(xengnttab_handle *xgt, void *start_address, uint32_t count);
+
+/*
+ * Sets the maximum number of grants that may be mapped by the given instance
+ * to @count. Never logs.
+ *
+ * N.B. This function must be called after opening the handle, and before any
+ * other functions are invoked on it.
+ *
+ * N.B. When variable-length grants are mapped, fragmentation may be observed,
+ * and it may not be possible to satisfy requests up to the maximum number
+ * of grants.
+ */
+int xengnttab_set_max_grants(xengnttab_handle *xgt,
+ uint32_t count);
+
+/*
+ * Grant Sharing Interface (allocating and granting pages)
+ */
+
+typedef struct xengntdev_handle xengntshr_handle;
+
+/*
+ * Return an fd onto the grant sharing driver. Logs errors.
+ *
+ * Note:
+ * After fork a child process must not use any opened xc gntshr
+ * handle inherited from their parent. They must open a new handle if
+ * they want to interact with xc.
+ *
+ */
+xengntshr_handle *xengntshr_open(xentoollog_logger *logger,
+ unsigned open_flags);
+
+/*
+ * Close a handle previously allocated with xengntshr_open().
+ * Never logs errors.
+ */
+int xengntshr_close(xengntshr_handle *xgs);
+
+/*
+ * Creates and shares pages with another domain.
+ *
+ * @parm xgs a handle to an open grant sharing instance
+ * @parm domid the domain to share memory with
+ * @parm count the number of pages to share
+ * @parm refs the grant references of the pages (output)
+ * @parm writable true if the other domain can write to the pages
+ * @return local mapping of the pages
+ */
+void *xengntshr_share_pages(xengntshr_handle *xgs, uint32_t domid,
+ int count, uint32_t *refs, int writable);
+
+/*
+ * Creates and shares a page with another domain, with unmap notification.
+ *
+ * @parm xgs a handle to an open grant sharing instance
+ * @parm domid the domain to share memory with
+ * @parm refs the grant reference of the pages (output)
+ * @parm writable true if the other domain can write to the page
+ * @parm notify_offset The byte offset in the page to use for unmap
+ * notification; -1 for none.
+ * @parm notify_port The event channel port to use for unmap notify, or -1
+ * @return local mapping of the page
+ */
+void *xengntshr_share_page_notify(xengntshr_handle *xgs, uint32_t domid,
+ uint32_t *ref, int writable,
+ uint32_t notify_offset,
+ evtchn_port_t notify_port);
+/*
+ * Unmaps the @count pages starting at @start_address, which were mapped by a
+ * call to xengntshr_share_*. Never logs.
+ */
+int xengntshr_unshare(xengntshr_handle *xgs, void *start_address, uint32_t count);
+
+#endif
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
--- /dev/null
+VERS_1.0 {
+ global:
+ xengnttab_open;
+ xengnttab_close;
+
+ xengnttab_set_max_grants;
+
+ xengnttab_map_domain_grant_refs;
+ xengnttab_map_grant_ref;
+ xengnttab_map_grant_ref_notify;
+ xengnttab_map_grant_refs;
+
+ xengnttab_unmap;
+
+ xengntshr_open;
+ xengntshr_close;
+
+ xengntshr_share_page_notify;
+ xengntshr_share_pages;
+
+ xengntshr_unshare;
+ local: *; /* Do not expose anything by default */
+};
--- /dev/null
+/*
+ * Copyright (c) 2007-2008, D G Murray <Derek.Murray@cl.cam.ac.uk>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Split out from xc_linux_osdep.c
+ */
+
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+
+#include <xen/sys/gntdev.h>
+#include <xen/sys/gntalloc.h>
+
+#include "private.h"
+
+#define DEVXEN "/dev/xen/"
+
+#define ROUNDUP(_x,_w) (((unsigned long)(_x)+(1UL<<(_w))-1) & ~((1UL<<(_w))-1))
+
+#define GTERROR(_l, _f...) xtl_log(_l, XTL_ERROR, errno, "gnttab", _f)
+#define GSERROR(_l, _f...) xtl_log(_l, XTL_ERROR, errno, "gntshr", _f)
+
+#define PAGE_SHIFT 12
+#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE-1))
+
+int osdep_gnttab_open(xengnttab_handle *xgt)
+{
+ int fd = open(DEVXEN "gntdev", O_RDWR);
+ if ( fd == -1 )
+ return -1;
+ xgt->fd = fd;
+ return 0;
+}
+
+int osdep_gnttab_close(xengnttab_handle *xgt)
+{
+ if ( xgt->fd == -1 )
+ return 0;
+
+ return close(xgt->fd);
+}
+
+int osdep_gnttab_set_max_grants(xengnttab_handle *xgt, uint32_t count)
+{
+ int fd = xgt->fd, rc;
+ struct ioctl_gntdev_set_max_grants max_grants = { .count = count };
+
+ rc = ioctl(fd, IOCTL_GNTDEV_SET_MAX_GRANTS, &max_grants);
+ if (rc) {
+ /*
+ * Newer (e.g. pv-ops) kernels don't implement this IOCTL,
+ * so ignore the resulting specific failure.
+ */
+ if (errno == ENOTTY)
+ rc = 0;
+ else
+ GTERROR(xgt->logger, "ioctl SET_MAX_GRANTS failed");
+ }
+
+ return rc;
+}
+
+void *osdep_gnttab_grant_map(xengnttab_handle *xgt,
+ uint32_t count, int flags, int prot,
+ uint32_t *domids, uint32_t *refs,
+ uint32_t notify_offset,
+ evtchn_port_t notify_port)
+{
+ int fd = xgt->fd;
+ struct ioctl_gntdev_map_grant_ref *map;
+ unsigned int map_size = ROUNDUP((sizeof(*map) + (count - 1) *
+ sizeof(struct ioctl_gntdev_map_grant_ref)),
+ PAGE_SHIFT);
+ void *addr = NULL;
+ int domids_stride = 1;
+ int i;
+
+ if (flags & XENGNTTAB_GRANT_MAP_SINGLE_DOMAIN)
+ domids_stride = 0;
+
+ if ( map_size <= PAGE_SIZE )
+ map = alloca(sizeof(*map) +
+ (count - 1) * sizeof(struct ioctl_gntdev_map_grant_ref));
+ else
+ {
+ map = mmap(NULL, map_size, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANON | MAP_POPULATE, -1, 0);
+ if ( map == MAP_FAILED )
+ {
+ GTERROR(xgt->logger, "mmap of map failed");
+ return NULL;
+ }
+ }
+
+ for ( i = 0; i < count; i++ )
+ {
+ map->refs[i].domid = domids[i * domids_stride];
+ map->refs[i].ref = refs[i];
+ }
+
+ map->count = count;
+
+ if ( ioctl(fd, IOCTL_GNTDEV_MAP_GRANT_REF, map) ) {
+ GTERROR(xgt->logger, "ioctl MAP_GRANT_REF failed");
+ goto out;
+ }
+
+ retry:
+ addr = mmap(NULL, PAGE_SIZE * count, prot, MAP_SHARED, fd,
+ map->index);
+
+ if (addr == MAP_FAILED && errno == EAGAIN)
+ {
+ /*
+ * The grant hypercall can return EAGAIN if the granted page is
+ * swapped out. Since the paging daemon may be in the same domain, the
+ * hypercall cannot block without causing a deadlock.
+ *
+ * Because there are no notificaitons when the page is swapped in, wait
+ * a bit before retrying, and hope that the page will arrive eventually.
+ */
+ usleep(1000);
+ goto retry;
+ }
+
+ if (addr != MAP_FAILED)
+ {
+ int rv = 0;
+ struct ioctl_gntdev_unmap_notify notify;
+ notify.index = map->index;
+ notify.action = 0;
+ if (notify_offset < PAGE_SIZE * count) {
+ notify.index += notify_offset;
+ notify.action |= UNMAP_NOTIFY_CLEAR_BYTE;
+ }
+ if (notify_port != -1) {
+ notify.event_channel_port = notify_port;
+ notify.action |= UNMAP_NOTIFY_SEND_EVENT;
+ }
+ if (notify.action)
+ rv = ioctl(fd, IOCTL_GNTDEV_SET_UNMAP_NOTIFY, ¬ify);
+ if (rv) {
+ GTERROR(xgt->logger, "ioctl SET_UNMAP_NOTIFY failed");
+ munmap(addr, count * PAGE_SIZE);
+ addr = MAP_FAILED;
+ }
+ }
+
+ if (addr == MAP_FAILED)
+ {
+ int saved_errno = errno;
+ struct ioctl_gntdev_unmap_grant_ref unmap_grant;
+
+ /* Unmap the driver slots used to store the grant information. */
+ GTERROR(xgt->logger, "mmap failed");
+ unmap_grant.index = map->index;
+ unmap_grant.count = count;
+ ioctl(fd, IOCTL_GNTDEV_UNMAP_GRANT_REF, &unmap_grant);
+ errno = saved_errno;
+ addr = NULL;
+ }
+
+ out:
+ if ( map_size > PAGE_SIZE )
+ munmap(map, map_size);
+
+ return addr;
+}
+
+int osdep_gnttab_unmap(xengnttab_handle *xgt,
+ void *start_address,
+ uint32_t count)
+{
+ int fd = xgt->fd;
+ struct ioctl_gntdev_get_offset_for_vaddr get_offset;
+ struct ioctl_gntdev_unmap_grant_ref unmap_grant;
+ int rc;
+
+ if ( start_address == NULL )
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ /* First, it is necessary to get the offset which was initially used to
+ * mmap() the pages.
+ */
+ get_offset.vaddr = (unsigned long)start_address;
+ if ( (rc = ioctl(fd, IOCTL_GNTDEV_GET_OFFSET_FOR_VADDR,
+ &get_offset)) )
+ return rc;
+
+ if ( get_offset.count != count )
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ /* Next, unmap the memory. */
+ if ( (rc = munmap(start_address, count * PAGE_SIZE)) )
+ return rc;
+
+ /* Finally, unmap the driver slots used to store the grant information. */
+ unmap_grant.index = get_offset.offset;
+ unmap_grant.count = count;
+ if ( (rc = ioctl(fd, IOCTL_GNTDEV_UNMAP_GRANT_REF, &unmap_grant)) )
+ return rc;
+
+ return 0;
+}
+
+int osdep_gntshr_open(xengntshr_handle *xgs)
+{
+ int fd = open(DEVXEN "gntalloc", O_RDWR);
+ if ( fd == -1 )
+ return -1;
+ xgs->fd = fd;
+ return 0;
+}
+
+int osdep_gntshr_close(xengntshr_handle *xgs)
+{
+ if ( xgs->fd == -1 )
+ return 0;
+
+ return close(xgs->fd);
+}
+
+void *osdep_gntshr_share_pages(xengntshr_handle *xgs,
+ uint32_t domid, int count,
+ uint32_t *refs, int writable,
+ uint32_t notify_offset,
+ evtchn_port_t notify_port)
+{
+ struct ioctl_gntalloc_alloc_gref *gref_info = NULL;
+ struct ioctl_gntalloc_unmap_notify notify;
+ struct ioctl_gntalloc_dealloc_gref gref_drop;
+ int fd = xgs->fd;
+ int err;
+ void *area = NULL;
+ gref_info = malloc(sizeof(*gref_info) + count * sizeof(uint32_t));
+ if (!gref_info)
+ return NULL;
+ gref_info->domid = domid;
+ gref_info->flags = writable ? GNTALLOC_FLAG_WRITABLE : 0;
+ gref_info->count = count;
+
+ err = ioctl(fd, IOCTL_GNTALLOC_ALLOC_GREF, gref_info);
+ if (err) {
+ GSERROR(xgs->logger, "ioctl failed");
+ goto out;
+ }
+
+ area = mmap(NULL, count * PAGE_SIZE, PROT_READ | PROT_WRITE,
+ MAP_SHARED, fd, gref_info->index);
+
+ if (area == MAP_FAILED) {
+ area = NULL;
+ GSERROR(xgs->logger, "mmap failed");
+ goto out_remove_fdmap;
+ }
+
+ notify.index = gref_info->index;
+ notify.action = 0;
+ if (notify_offset < PAGE_SIZE * count) {
+ notify.index += notify_offset;
+ notify.action |= UNMAP_NOTIFY_CLEAR_BYTE;
+ }
+ if (notify_port != -1) {
+ notify.event_channel_port = notify_port;
+ notify.action |= UNMAP_NOTIFY_SEND_EVENT;
+ }
+ if (notify.action)
+ err = ioctl(fd, IOCTL_GNTALLOC_SET_UNMAP_NOTIFY, ¬ify);
+ if (err) {
+ GSERROR(xgs->logger, "ioctl SET_UNMAP_NOTIFY failed");
+ munmap(area, count * PAGE_SIZE);
+ area = NULL;
+ }
+
+ memcpy(refs, gref_info->gref_ids, count * sizeof(uint32_t));
+
+ out_remove_fdmap:
+ /* Removing the mapping from the file descriptor does not cause the pages to
+ * be deallocated until the mapping is removed.
+ */
+ gref_drop.index = gref_info->index;
+ gref_drop.count = count;
+ ioctl(fd, IOCTL_GNTALLOC_DEALLOC_GREF, &gref_drop);
+ out:
+ free(gref_info);
+ return area;
+}
+
+int osdep_gntshr_unshare(xengntshr_handle *xgs,
+ void *start_address, uint32_t count)
+{
+ return munmap(start_address, count * PAGE_SIZE);
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
--- /dev/null
+/*
+ *
+ * Copyright 2007-2008 Samuel Thibault <samuel.thibault@eu.citrix.com>.
+ * All rights reserved.
+ * Use is subject to license terms.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Splitfrom xc_minios.c
+ */
+
+#include <mini-os/types.h>
+#include <mini-os/os.h>
+#include <mini-os/lib.h>
+
+#include <mini-os/gntmap.h>
+#include <sys/mman.h>
+
+#include <errno.h>
+#include <unistd.h>
+
+#include "private.h"
+
+void minios_gnttab_close_fd(int fd);
+
+int osdep_gnttab_open(xengnttab_handle *xgt)
+{
+ int fd = alloc_fd(FTYPE_GNTMAP);
+ if ( fd == -1 )
+ return -1;
+ gntmap_init(&files[fd].gntmap);
+ xgt->fd = fd;
+ return 0;
+}
+
+int osdep_gnttab_close(xengnttab_handle *xgt)
+{
+ if ( xgt->fd == -1 )
+ return 0;
+
+ return close(xgt->fd);
+}
+
+void minios_gnttab_close_fd(int fd)
+{
+ gntmap_fini(&files[fd].gntmap);
+ files[fd].type = FTYPE_NONE;
+}
+
+void *osdep_gnttab_grant_map(xengnttab_handle *xgt,
+ uint32_t count, int flags, int prot,
+ uint32_t *domids, uint32_t *refs,
+ uint32_t notify_offset,
+ evtchn_port_t notify_port)
+{
+ int fd = xgt->fd;
+ int stride = 1;
+ if (flags & XENGNTTAB_GRANT_MAP_SINGLE_DOMAIN)
+ stride = 0;
+ if (notify_offset != -1 || notify_port != -1) {
+ errno = ENOSYS;
+ return NULL;
+ }
+ return gntmap_map_grant_refs(&files[fd].gntmap,
+ count, domids, stride,
+ refs, prot & PROT_WRITE);
+}
+
+int osdep_gnttab_unmap(xengnttab_handle *xgt,
+ void *start_address,
+ uint32_t count)
+{
+ int fd = xgt->fd;
+ int ret;
+ ret = gntmap_munmap(&files[fd].gntmap,
+ (unsigned long) start_address,
+ count);
+ if (ret < 0) {
+ errno = -ret;
+ return -1;
+ }
+ return ret;
+}
+
+int osdep_gnttab_set_max_grants(xengnttab_handle *xgt, uint32_t count)
+{
+ int fd = xgt->fd;
+ int ret;
+ ret = gntmap_set_max_grants(&files[fd].gntmap,
+ count);
+ if (ret < 0) {
+ errno = -ret;
+ return -1;
+ }
+ return ret;
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
--- /dev/null
+#ifndef XENGNTTAB_PRIVATE_H
+#define XENGNTTAB_PRIVATE_H
+
+#include <xentoollog.h>
+#include <xengnttab.h>
+
+struct xengntdev_handle {
+ xentoollog_logger *logger, *logger_tofree;
+ int fd;
+};
+
+int osdep_gnttab_open(xengnttab_handle *xgt);
+int osdep_gnttab_close(xengnttab_handle *xgt);
+
+int osdep_gnttab_set_max_grants(xengnttab_handle *xgt, uint32_t count);
+
+#define XENGNTTAB_GRANT_MAP_SINGLE_DOMAIN 0x1
+void *osdep_gnttab_grant_map(xengnttab_handle *xgt,
+ uint32_t count, int flags, int prot,
+ uint32_t *domids, uint32_t *refs,
+ uint32_t notify_offset,
+ evtchn_port_t notify_port);
+int osdep_gnttab_unmap(xengnttab_handle *xgt,
+ void *start_address,
+ uint32_t count);
+int osdep_gntshr_open(xengntshr_handle *xgs);
+int osdep_gntshr_close(xengntshr_handle *xgs);
+
+void *osdep_gntshr_share_pages(xengntshr_handle *xgs,
+ uint32_t domid, int count,
+ uint32_t *refs, int writable,
+ uint32_t notify_offset,
+ evtchn_port_t notify_port);
+int osdep_gntshr_unshare(xengntshr_handle *xgs,
+ void *start_address, uint32_t count);
+
+#endif
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
NODE2_OBJS = node-select.o
LIBVCHAN_PIC_OBJS = $(patsubst %.o,%.opic,$(LIBVCHAN_OBJS))
-LIBVCHAN_LIBS = $(LDLIBS_libxenstore) $(LDLIBS_libxenctrl) $(LDLIBS_libxenevtchn)
-$(LIBVCHAN_OBJS) $(LIBVCHAN_PIC_OBJS): CFLAGS += $(CFLAGS_libxenstore) $(CFLAGS_libxenctrl) $(CFLAGS_libxenevtchn)
-$(NODE_OBJS) $(NODE2_OBJS): CFLAGS += $(CFLAGS_libxenctrl) $(CFLAGS_libxenevtchn)
+LIBVCHAN_LIBS = $(LDLIBS_libxenstore) $(LDLIBS_libxengnttab) $(LDLIBS_libxengntshr) $(LDLIBS_libxenevtchn)
+$(LIBVCHAN_OBJS) $(LIBVCHAN_PIC_OBJS): CFLAGS += $(CFLAGS_libxenstore) $(CFLAGS_libxengnttab) $(CFLAGS_libxengntshr) $(CFLAGS_libxenevtchn)
+$(NODE_OBJS) $(NODE2_OBJS): CFLAGS += $(CFLAGS_libxengnttab) $(CFLAGS_libxengntshr) $(CFLAGS_libxenevtchn)
MAJOR = 1.0
MINOR = 0
CFLAGS += -I../include -I.
+io.o io.opic: CFLAGS += $(CFLAGS_libxenctrl) # for xen_mb et al
+
.PHONY: all
all: libxenvchan.so vchan-node1 vchan-node2 libxenvchan.a
uint32_t ring_ref = -1;
void *ring;
- ring = xc_gntshr_share_page_notify(ctrl->gntshr, domain,
+ ring = xengntshr_share_page_notify(ctrl->gntshr, domain,
&ring_ref, 1, offsetof(struct vchan_interface, srv_live),
ctrl->event_port);
ctrl->read.buffer = ((void*)ctrl->ring) + LARGE_RING_OFFSET;
break;
default:
- ctrl->read.buffer = xc_gntshr_share_pages(ctrl->gntshr, domain,
+ ctrl->read.buffer = xengntshr_share_pages(ctrl->gntshr, domain,
pages_left, ctrl->ring->grants, 1);
if (!ctrl->read.buffer)
goto out_ring;
ctrl->write.buffer = ((void*)ctrl->ring) + LARGE_RING_OFFSET;
break;
default:
- ctrl->write.buffer = xc_gntshr_share_pages(ctrl->gntshr, domain,
+ ctrl->write.buffer = xengntshr_share_pages(ctrl->gntshr, domain,
pages_right, ctrl->ring->grants + pages_left, 1);
if (!ctrl->write.buffer)
goto out_unmap_left;
return ring_ref;
out_unmap_left:
if (pages_left)
- xc_gntshr_munmap(ctrl->gntshr, ctrl->read.buffer, pages_left);
+ xengntshr_unshare(ctrl->gntshr, ctrl->read.buffer, pages_left);
out_ring:
- xc_gntshr_munmap(ctrl->gntshr, ring, 1);
+ xengntshr_unshare(ctrl->gntshr, ring, 1);
ring_ref = -1;
ctrl->ring = NULL;
ctrl->write.order = ctrl->read.order = 0;
int rv = -1;
uint32_t *grants;
- ctrl->ring = xc_gnttab_map_grant_ref_notify(ctrl->gnttab,
+ ctrl->ring = xengnttab_map_grant_ref_notify(ctrl->gnttab,
domain, ring_ref, PROT_READ|PROT_WRITE,
offsetof(struct vchan_interface, cli_live), ctrl->event_port);
default:
{
int pages_left = 1 << (ctrl->write.order - PAGE_SHIFT);
- ctrl->write.buffer = xc_gnttab_map_domain_grant_refs(ctrl->gnttab,
+ ctrl->write.buffer = xengnttab_map_domain_grant_refs(ctrl->gnttab,
pages_left, domain, grants, PROT_READ|PROT_WRITE);
if (!ctrl->write.buffer)
goto out_unmap_ring;
default:
{
int pages_right = 1 << (ctrl->read.order - PAGE_SHIFT);
- ctrl->read.buffer = xc_gnttab_map_domain_grant_refs(ctrl->gnttab,
+ ctrl->read.buffer = xengnttab_map_domain_grant_refs(ctrl->gnttab,
pages_right, domain, grants, PROT_READ);
if (!ctrl->read.buffer)
goto out_unmap_left;
return rv;
out_unmap_left:
if (ctrl->write.order >= PAGE_SHIFT)
- xc_gnttab_munmap(ctrl->gnttab, ctrl->write.buffer,
- 1 << (ctrl->write.order - PAGE_SHIFT));
+ xengnttab_unmap(ctrl->gnttab, ctrl->write.buffer,
+ 1 << (ctrl->write.order - PAGE_SHIFT));
out_unmap_ring:
- xc_gnttab_munmap(ctrl->gnttab, ctrl->ring, 1);
+ xengnttab_unmap(ctrl->gnttab, ctrl->ring, 1);
ctrl->ring = 0;
ctrl->write.order = ctrl->read.order = 0;
rv = -1;
ctrl->write.order = LARGE_RING_SHIFT;
}
- ctrl->gntshr = xc_gntshr_open(logger, 0);
+ ctrl->gntshr = xengntshr_open(logger, 0);
if (!ctrl->gntshr)
goto out;
if (!ctrl->event_port)
goto fail;
- ctrl->gnttab = xc_gnttab_open(logger, 0);
+ ctrl->gnttab = xengnttab_open(logger, 0);
if (!ctrl->gnttab)
goto fail;
if (ctrl->ring) {
if (ctrl->is_server) {
ctrl->ring->srv_live = 0;
- xc_gntshr_munmap(ctrl->gntshr, ctrl->ring, 1);
+ xengntshr_unshare(ctrl->gntshr, ctrl->ring, 1);
} else {
ctrl->ring->cli_live = 0;
- xc_gnttab_munmap(ctrl->gnttab, ctrl->ring, 1);
+ xengnttab_unmap(ctrl->gnttab, ctrl->ring, 1);
}
}
if (ctrl->event) {
}
if (ctrl->is_server) {
if (ctrl->gntshr)
- xc_gntshr_close(ctrl->gntshr);
+ xengntshr_close(ctrl->gntshr);
} else {
if (ctrl->gnttab)
- xc_gnttab_close(ctrl->gnttab);
+ xengnttab_close(ctrl->gnttab);
}
free(ctrl);
}
#include <xen/io/libxenvchan.h>
#include <xen/sys/evtchn.h>
#include <xenevtchn.h>
-#include <xenctrl.h>
+#include <xengnttab.h>
struct libxenvchan_ring {
/* Pointer into the shared page. Offsets into buffer. */
struct libxenvchan {
/* Mapping handle for shared ring page */
union {
- xc_gntshr *gntshr; /* for server */
- xc_gnttab *gnttab; /* for client */
+ xengntshr_handle *gntshr; /* for server */
+ xengnttab_handle *gnttab; /* for client */
};
/* Pointer to shared ring page */
struct vchan_interface *ring;
CTRL_SRCS-$(CONFIG_X86) += xc_psr.c
CTRL_SRCS-$(CONFIG_X86) += xc_pagetab.c
CTRL_SRCS-$(CONFIG_Linux) += xc_linux.c xc_linux_osdep.c
-CTRL_SRCS-$(CONFIG_FreeBSD) += xc_freebsd.c xc_freebsd_osdep.c xc_nognttab.c xc_nogntshr.c
-CTRL_SRCS-$(CONFIG_SunOS) += xc_solaris.c xc_nognttab.c xc_nogntshr.c
-CTRL_SRCS-$(CONFIG_NetBSD) += xc_netbsd.c xc_nognttab.c xc_nogntshr.c
-CTRL_SRCS-$(CONFIG_NetBSDRump) += xc_netbsd.c xc_nognttab.c xc_nogntshr.c
-CTRL_SRCS-$(CONFIG_MiniOS) += xc_minios.c xc_nogntshr.c
+CTRL_SRCS-$(CONFIG_FreeBSD) += xc_freebsd.c xc_freebsd_osdep.c
+CTRL_SRCS-$(CONFIG_SunOS) += xc_solaris.c
+CTRL_SRCS-$(CONFIG_NetBSD) += xc_netbsd.c
+CTRL_SRCS-$(CONFIG_NetBSDRump) += xc_netbsd.c
+CTRL_SRCS-$(CONFIG_MiniOS) += xc_minios.c
CTRL_SRCS-y += xc_evtchn_compat.c
+CTRL_SRCS-y += xc_gnttab_compat.c
GUEST_SRCS-y :=
GUEST_SRCS-y += xg_private.c xc_suspend.c
$(CTRL_LIB_OBJS) $(GUEST_LIB_OBJS) $(OSDEP_LIB_OBJS) \
$(CTRL_PIC_OBJS) $(GUEST_PIC_OBJS) $(OSDEP_PIC_OBJS) : CFLAGS += -include $(XEN_ROOT)/tools/config.h
+$(CTRL_LIB_OBJS) $(CTRL_PIC_OBJS): CFLAGS += $(CFLAGS_libxengnttab) $(CFLAGS_libxengntshr)
+
LIB := libxenctrl.a
ifneq ($(nosharedlibs),y)
LIB += libxenctrl.so libxenctrl.so.$(MAJOR) libxenctrl.so.$(MAJOR).$(MINOR)
$(SYMLINK_SHLIB) $< $@
libxenctrl.so.$(MAJOR).$(MINOR): $(CTRL_PIC_OBJS)
- $(CC) $(LDFLAGS) $(PTHREAD_LDFLAGS) -Wl,$(SONAME_LDFLAG) -Wl,libxenctrl.so.$(MAJOR) $(SHLIB_LDFLAGS) -o $@ $^ $(LDLIBS_libxentoollog) $(LDLIBS_libxenevtchn) $(DLOPEN_LIBS) $(PTHREAD_LIBS) $(APPEND_LDFLAGS)
+ $(CC) $(LDFLAGS) $(PTHREAD_LDFLAGS) -Wl,$(SONAME_LDFLAG) -Wl,libxenctrl.so.$(MAJOR) $(SHLIB_LDFLAGS) -o $@ $^ $(LDLIBS_libxentoollog) $(LDLIBS_libxenevtchn) $(LDLIBS_libxengnttab) $(LDLIBS_libxengntshr) $(DLOPEN_LIBS) $(PTHREAD_LIBS) $(APPEND_LDFLAGS)
# libxenguest
*
* Copyright (c) 2003-2004, K A Fraser.
*
- * xc_gnttab functions:
- * Copyright (c) 2007-2008, D G Murray <Derek.Murray@cl.cam.ac.uk>
- *
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
*/
typedef struct xc_interface_core xc_interface;
-typedef struct xengntdev_handle xc_gnttab;
-typedef struct xengntdev_handle xc_gntshr;
enum xc_error_code {
XC_ERROR_NONE = 0,
* These functions sometimes log messages as above, but not always.
*/
-/*
- * Note:
- * After fork a child process must not use any opened xc gnttab
- * handle inherited from their parent. They must open a new handle if
- * they want to interact with xc.
- *
- * Return an fd onto the grant table driver. Logs errors.
- */
-xc_gnttab *xc_gnttab_open(xentoollog_logger *logger,
- unsigned open_flags);
-
-/*
- * Close a handle previously allocated with xc_gnttab_open().
- * Never logs errors.
- */
-int xc_gnttab_close(xc_gnttab *xcg);
-
-/*
- * Memory maps a grant reference from one domain to a local address range.
- * Mappings should be unmapped with xc_gnttab_munmap. Logs errors.
- *
- * @parm xcg a handle on an open grant table interface
- * @parm domid the domain to map memory from
- * @parm ref the grant reference ID to map
- * @parm prot same flag as in mmap()
- */
-void *xc_gnttab_map_grant_ref(xc_gnttab *xcg,
- uint32_t domid,
- uint32_t ref,
- int prot);
-
-/**
- * Memory maps one or more grant references from one or more domains to a
- * contiguous local address range. Mappings should be unmapped with
- * xc_gnttab_munmap. Logs errors.
- *
- * @parm xcg a handle on an open grant table interface
- * @parm count the number of grant references to be mapped
- * @parm domids an array of @count domain IDs by which the corresponding @refs
- * were granted
- * @parm refs an array of @count grant references to be mapped
- * @parm prot same flag as in mmap()
- */
-void *xc_gnttab_map_grant_refs(xc_gnttab *xcg,
- uint32_t count,
- uint32_t *domids,
- uint32_t *refs,
- int prot);
-
-/**
- * Memory maps one or more grant references from one domain to a
- * contiguous local address range. Mappings should be unmapped with
- * xc_gnttab_munmap. Logs errors.
- *
- * @parm xcg a handle on an open grant table interface
- * @parm count the number of grant references to be mapped
- * @parm domid the domain to map memory from
- * @parm refs an array of @count grant references to be mapped
- * @parm prot same flag as in mmap()
- */
-void *xc_gnttab_map_domain_grant_refs(xc_gnttab *xcg,
- uint32_t count,
- uint32_t domid,
- uint32_t *refs,
- int prot);
-
-/**
- * Memory maps a grant reference from one domain to a local address range.
- * Mappings should be unmapped with xc_gnttab_munmap. If notify_offset or
- * notify_port are not -1, this version will attempt to set up an unmap
- * notification at the given offset and event channel. When the page is
- * unmapped, the byte at the given offset will be zeroed and a wakeup will be
- * sent to the given event channel. Logs errors.
- *
- * @parm xcg a handle on an open grant table interface
- * @parm domid the domain to map memory from
- * @parm ref the grant reference ID to map
- * @parm prot same flag as in mmap()
- * @parm notify_offset The byte offset in the page to use for unmap
- * notification; -1 for none.
- * @parm notify_port The event channel port to use for unmap notify, or -1
- */
-void *xc_gnttab_map_grant_ref_notify(xc_gnttab *xcg,
- uint32_t domid,
- uint32_t ref,
- int prot,
- uint32_t notify_offset,
- evtchn_port_t notify_port);
-
-/*
- * Unmaps the @count pages starting at @start_address, which were mapped by a
- * call to xc_gnttab_map_grant_ref or xc_gnttab_map_grant_refs. Never logs.
- */
-int xc_gnttab_munmap(xc_gnttab *xcg,
- void *start_address,
- uint32_t count);
-
-/*
- * Sets the maximum number of grants that may be mapped by the given instance
- * to @count. Never logs.
- *
- * N.B. This function must be called after opening the handle, and before any
- * other functions are invoked on it.
- *
- * N.B. When variable-length grants are mapped, fragmentation may be observed,
- * and it may not be possible to satisfy requests up to the maximum number
- * of grants.
- */
-int xc_gnttab_set_max_grants(xc_gnttab *xcg,
- uint32_t count);
int xc_gnttab_op(xc_interface *xch, int cmd,
void * op, int op_size, int count);
grant_entry_v2_t *xc_gnttab_map_table_v2(xc_interface *xch, int domid, int *gnt_num);
/* Sometimes these don't set errno [fixme], and sometimes they don't log. */
-/*
- * Return an fd onto the grant sharing driver. Logs errors.
- *
- * Note:
- * After fork a child process must not use any opened xc gntshr
- * handle inherited from their parent. They must open a new handle if
- * they want to interact with xc.
- *
- */
-xc_gntshr *xc_gntshr_open(xentoollog_logger *logger,
- unsigned open_flags);
-
-/*
- * Close a handle previously allocated with xc_gntshr_open().
- * Never logs errors.
- */
-int xc_gntshr_close(xc_gntshr *xcg);
-
-/*
- * Creates and shares pages with another domain.
- *
- * @parm xcg a handle to an open grant sharing instance
- * @parm domid the domain to share memory with
- * @parm count the number of pages to share
- * @parm refs the grant references of the pages (output)
- * @parm writable true if the other domain can write to the pages
- * @return local mapping of the pages
- */
-void *xc_gntshr_share_pages(xc_gntshr *xcg, uint32_t domid,
- int count, uint32_t *refs, int writable);
-
-/*
- * Creates and shares a page with another domain, with unmap notification.
- *
- * @parm xcg a handle to an open grant sharing instance
- * @parm domid the domain to share memory with
- * @parm refs the grant reference of the pages (output)
- * @parm writable true if the other domain can write to the page
- * @parm notify_offset The byte offset in the page to use for unmap
- * notification; -1 for none.
- * @parm notify_port The event channel port to use for unmap notify, or -1
- * @return local mapping of the page
- */
-void *xc_gntshr_share_page_notify(xc_gntshr *xcg, uint32_t domid,
- uint32_t *ref, int writable,
- uint32_t notify_offset,
- evtchn_port_t notify_port);
-/*
- * Unmaps the @count pages starting at @start_address, which were mapped by a
- * call to xc_gntshr_share_*. Never logs.
- */
-int xc_gntshr_munmap(xc_gntshr *xcg, void *start_address, uint32_t count);
-
int xc_physdev_map_pirq(xc_interface *xch,
int domid,
int index,
#endif /* XC_WANT_COMPAT_EVTCHN_API */
+#ifdef XC_WANT_COMPAT_GNTTAB_API
+
+typedef struct xengntdev_handle xc_gnttab;
+
+xc_gnttab *xc_gnttab_open(xentoollog_logger *logger,
+ unsigned open_flags);
+int xc_gnttab_close(xc_gnttab *xcg);
+void *xc_gnttab_map_grant_ref(xc_gnttab *xcg,
+ uint32_t domid,
+ uint32_t ref,
+ int prot);
+void *xc_gnttab_map_grant_refs(xc_gnttab *xcg,
+ uint32_t count,
+ uint32_t *domids,
+ uint32_t *refs,
+ int prot);
+void *xc_gnttab_map_domain_grant_refs(xc_gnttab *xcg,
+ uint32_t count,
+ uint32_t domid,
+ uint32_t *refs,
+ int prot);
+void *xc_gnttab_map_grant_ref_notify(xc_gnttab *xcg,
+ uint32_t domid,
+ uint32_t ref,
+ int prot,
+ uint32_t notify_offset,
+ evtchn_port_t notify_port);
+int xc_gnttab_munmap(xc_gnttab *xcg,
+ void *start_address,
+ uint32_t count);
+int xc_gnttab_set_max_grants(xc_gnttab *xcg,
+ uint32_t count);
+
+typedef struct xengntdev_handle xc_gntshr;
+
+xc_gntshr *xc_gntshr_open(xentoollog_logger *logger,
+ unsigned open_flags);
+int xc_gntshr_close(xc_gntshr *xcg);
+void *xc_gntshr_share_pages(xc_gntshr *xcg, uint32_t domid,
+ int count, uint32_t *refs, int writable);
+void *xc_gntshr_share_page_notify(xc_gntshr *xcg, uint32_t domid,
+ uint32_t *ref, int writable,
+ uint32_t notify_offset,
+ evtchn_port_t notify_port);
+int xc_gntshr_munmap(xc_gntshr *xcg, void *start_address, uint32_t count);
+
+#endif /* XC_WANT_COMPAT_GNTTAB_API */
+
#endif
/*
return _gnttab_map_table(xch, domid, gnt_num);
}
-void *xc_gnttab_map_grant_ref(xc_gnttab *xgt,
- uint32_t domid,
- uint32_t ref,
- int prot)
-{
- return osdep_gnttab_grant_map(xgt, 1, 0, prot, &domid, &ref, -1, -1);
-}
-
-void *xc_gnttab_map_grant_refs(xc_gnttab *xgt,
- uint32_t count,
- uint32_t *domids,
- uint32_t *refs,
- int prot)
-{
- return osdep_gnttab_grant_map(xgt, count, 0, prot, domids, refs, -1, -1);
-}
-
-void *xc_gnttab_map_domain_grant_refs(xc_gnttab *xgt,
- uint32_t count,
- uint32_t domid,
- uint32_t *refs,
- int prot)
-{
- return osdep_gnttab_grant_map(xgt, count, XC_GRANT_MAP_SINGLE_DOMAIN,
- prot, &domid, refs, -1, -1);
-}
-
-void *xc_gnttab_map_grant_ref_notify(xc_gnttab *xgt,
- uint32_t domid,
- uint32_t ref,
- int prot,
- uint32_t notify_offset,
- evtchn_port_t notify_port)
-{
- return osdep_gnttab_grant_map(xgt, 1, 0, prot, &domid, &ref,
- notify_offset, notify_port);
-}
-
-void *xc_gntshr_share_pages(xc_gntshr *xcg, uint32_t domid,
- int count, uint32_t *refs, int writable)
-{
- return osdep_gntshr_share_pages(xcg, domid, count, refs, writable, -1, -1);
-}
-
-void *xc_gntshr_share_page_notify(xc_gntshr *xcg, uint32_t domid,
- uint32_t *ref, int writable,
- uint32_t notify_offset,
- evtchn_port_t notify_port)
-{
- return osdep_gntshr_share_pages(xcg, domid, 1, ref, writable,
- notify_offset, notify_port);
-}
-
/*
* Local variables:
* mode: C
--- /dev/null
+/*
+ * Compat shims for use of 3rd party consumers of libxenctrl xc_gnt{tab,shr}
+ * functionality which has been split into separate libraries.
+ */
+
+#include <xengnttab.h>
+
+#define XC_WANT_COMPAT_GNTTAB_API
+#include "xenctrl.h"
+
+xc_gnttab *xc_gnttab_open(xentoollog_logger *logger,
+ unsigned open_flags)
+{
+ return xengnttab_open(logger, open_flags);
+}
+
+int xc_gnttab_close(xc_gnttab *xcg)
+{
+ return xengnttab_close(xcg);
+}
+
+void *xc_gnttab_map_grant_ref(xc_gnttab *xcg,
+ uint32_t domid,
+ uint32_t ref,
+ int prot)
+{
+ return xengnttab_map_grant_ref(xcg, domid, ref, prot);
+}
+
+void *xc_gnttab_map_grant_refs(xc_gnttab *xcg,
+ uint32_t count,
+ uint32_t *domids,
+ uint32_t *refs,
+ int prot)
+{
+ return xengnttab_map_grant_refs(xcg, count, domids, refs, prot);
+}
+
+void *xc_gnttab_map_domain_grant_refs(xc_gnttab *xcg,
+ uint32_t count,
+ uint32_t domid,
+ uint32_t *refs,
+ int prot)
+{
+ return xengnttab_map_domain_grant_refs(xcg, count, domid, refs, prot);
+}
+
+void *xc_gnttab_map_grant_ref_notify(xc_gnttab *xcg,
+ uint32_t domid,
+ uint32_t ref,
+ int prot,
+ uint32_t notify_offset,
+ evtchn_port_t notify_port)
+{
+ return xengnttab_map_grant_ref_notify(xcg, domid, ref, prot,
+ notify_offset, notify_port);
+}
+
+int xc_gnttab_munmap(xc_gnttab *xcg,
+ void *start_address,
+ uint32_t count)
+{
+ return xengnttab_unmap(xcg, start_address, count);
+}
+
+int xc_gnttab_set_max_grants(xc_gnttab *xcg,
+ uint32_t count)
+{
+ return xengnttab_set_max_grants(xcg, count);
+}
+
+xc_gntshr *xc_gntshr_open(xentoollog_logger *logger,
+ unsigned open_flags)
+{
+ return xengntshr_open(logger, open_flags);
+}
+
+int xc_gntshr_close(xc_gntshr *xcg)
+{
+ return xengntshr_close(xcg);
+}
+
+void *xc_gntshr_share_pages(xc_gntshr *xcg, uint32_t domid,
+ int count, uint32_t *refs, int writable)
+{
+ return xengntshr_share_pages(xcg, domid, count, refs, writable);
+}
+
+void *xc_gntshr_share_page_notify(xc_gntshr *xcg, uint32_t domid,
+ uint32_t *ref, int writable,
+ uint32_t notify_offset,
+ evtchn_port_t notify_port)
+{
+ return xengntshr_share_page_notify(xcg, domid, ref, writable,
+ notify_offset, notify_port);
+}
+
+int xc_gntshr_munmap(xc_gntshr *xcg, void *start_address, uint32_t count)
+{
+ return xengntshr_unshare(xcg, start_address, count);
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
#include <sys/ioctl.h>
#include <xen/memory.h>
-#include <xen/sys/gntdev.h>
-#include <xen/sys/gntalloc.h>
#include "xenctrl.h"
#include "xenctrlosdep.h"
#define ROUNDUP(_x,_w) (((unsigned long)(_x)+(1UL<<(_w))-1) & ~((1UL<<(_w))-1))
-#define GTERROR(_l, _f...) xtl_log(_l, XTL_ERROR, errno, "gnttab", _f)
-#define GSERROR(_l, _f...) xtl_log(_l, XTL_ERROR, errno, "gntshr", _f)
-
static xc_osdep_handle linux_privcmd_open(xc_interface *xch)
{
int flags, saved_errno;
},
};
-#define DEVXEN "/dev/xen/"
-
-int osdep_gnttab_open(xc_gnttab *xgt)
-{
- int fd = open(DEVXEN "gntdev", O_RDWR);
- if ( fd == -1 )
- return -1;
- xgt->fd = fd;
- return 0;
-}
-
-int osdep_gnttab_close(xc_gnttab *xgt)
-{
- if ( xgt->fd == -1 )
- return 0;
-
- return close(xgt->fd);
-}
-
-int xc_gnttab_set_max_grants(xc_gnttab *xgt, uint32_t count)
-{
- int fd = xgt->fd, rc;
- struct ioctl_gntdev_set_max_grants max_grants = { .count = count };
-
- rc = ioctl(fd, IOCTL_GNTDEV_SET_MAX_GRANTS, &max_grants);
- if (rc) {
- /*
- * Newer (e.g. pv-ops) kernels don't implement this IOCTL,
- * so ignore the resulting specific failure.
- */
- if (errno == ENOTTY)
- rc = 0;
- else
- GTERROR(xgt->logger, "ioctl SET_MAX_GRANTS failed");
- }
-
- return rc;
-}
-
-void *osdep_gnttab_grant_map(xc_gnttab *xgt,
- uint32_t count, int flags, int prot,
- uint32_t *domids, uint32_t *refs,
- uint32_t notify_offset,
- evtchn_port_t notify_port)
-{
- int fd = xgt->fd;
- struct ioctl_gntdev_map_grant_ref *map;
- unsigned int map_size = ROUNDUP((sizeof(*map) + (count - 1) *
- sizeof(struct ioctl_gntdev_map_grant_ref)),
- XC_PAGE_SHIFT);
- void *addr = NULL;
- int domids_stride = 1;
- int i;
-
- if (flags & XC_GRANT_MAP_SINGLE_DOMAIN)
- domids_stride = 0;
-
- if ( map_size <= XC_PAGE_SIZE )
- map = alloca(sizeof(*map) +
- (count - 1) * sizeof(struct ioctl_gntdev_map_grant_ref));
- else
- {
- map = mmap(NULL, map_size, PROT_READ | PROT_WRITE,
- MAP_PRIVATE | MAP_ANON | MAP_POPULATE, -1, 0);
- if ( map == MAP_FAILED )
- {
- GTERROR(xgt->logger, "mmap of map failed");
- return NULL;
- }
- }
-
- for ( i = 0; i < count; i++ )
- {
- map->refs[i].domid = domids[i * domids_stride];
- map->refs[i].ref = refs[i];
- }
-
- map->count = count;
-
- if ( ioctl(fd, IOCTL_GNTDEV_MAP_GRANT_REF, map) ) {
- GTERROR(xgt->logger, "ioctl MAP_GRANT_REF failed");
- goto out;
- }
-
- retry:
- addr = mmap(NULL, XC_PAGE_SIZE * count, prot, MAP_SHARED, fd,
- map->index);
-
- if (addr == MAP_FAILED && errno == EAGAIN)
- {
- /*
- * The grant hypercall can return EAGAIN if the granted page is
- * swapped out. Since the paging daemon may be in the same domain, the
- * hypercall cannot block without causing a deadlock.
- *
- * Because there are no notificaitons when the page is swapped in, wait
- * a bit before retrying, and hope that the page will arrive eventually.
- */
- usleep(1000);
- goto retry;
- }
-
- if (addr != MAP_FAILED)
- {
- int rv = 0;
- struct ioctl_gntdev_unmap_notify notify;
- notify.index = map->index;
- notify.action = 0;
- if (notify_offset < XC_PAGE_SIZE * count) {
- notify.index += notify_offset;
- notify.action |= UNMAP_NOTIFY_CLEAR_BYTE;
- }
- if (notify_port != -1) {
- notify.event_channel_port = notify_port;
- notify.action |= UNMAP_NOTIFY_SEND_EVENT;
- }
- if (notify.action)
- rv = ioctl(fd, IOCTL_GNTDEV_SET_UNMAP_NOTIFY, ¬ify);
- if (rv) {
- GTERROR(xgt->logger, "ioctl SET_UNMAP_NOTIFY failed");
- munmap(addr, count * XC_PAGE_SIZE);
- addr = MAP_FAILED;
- }
- }
-
- if (addr == MAP_FAILED)
- {
- int saved_errno = errno;
- struct ioctl_gntdev_unmap_grant_ref unmap_grant;
-
- /* Unmap the driver slots used to store the grant information. */
- GTERROR(xgt->logger, "mmap failed");
- unmap_grant.index = map->index;
- unmap_grant.count = count;
- ioctl(fd, IOCTL_GNTDEV_UNMAP_GRANT_REF, &unmap_grant);
- errno = saved_errno;
- addr = NULL;
- }
-
- out:
- if ( map_size > XC_PAGE_SIZE )
- munmap(map, map_size);
-
- return addr;
-}
-
-int xc_gnttab_munmap(xc_gnttab *xgt, void *start_address, uint32_t count)
-{
- int fd = xgt->fd;
- struct ioctl_gntdev_get_offset_for_vaddr get_offset;
- struct ioctl_gntdev_unmap_grant_ref unmap_grant;
- int rc;
-
- if ( start_address == NULL )
- {
- errno = EINVAL;
- return -1;
- }
-
- /* First, it is necessary to get the offset which was initially used to
- * mmap() the pages.
- */
- get_offset.vaddr = (unsigned long)start_address;
- if ( (rc = ioctl(fd, IOCTL_GNTDEV_GET_OFFSET_FOR_VADDR,
- &get_offset)) )
- return rc;
-
- if ( get_offset.count != count )
- {
- errno = EINVAL;
- return -1;
- }
-
- /* Next, unmap the memory. */
- if ( (rc = munmap(start_address, count * XC_PAGE_SIZE)) )
- return rc;
-
- /* Finally, unmap the driver slots used to store the grant information. */
- unmap_grant.index = get_offset.offset;
- unmap_grant.count = count;
- if ( (rc = ioctl(fd, IOCTL_GNTDEV_UNMAP_GRANT_REF, &unmap_grant)) )
- return rc;
-
- return 0;
-}
-
-int osdep_gntshr_open(xc_gntshr *xgs)
-{
- int fd = open(DEVXEN "gntalloc", O_RDWR);
- if ( fd == -1 )
- return -1;
- xgs->fd = fd;
- return 0;
-}
-
-int osdep_gntshr_close(xc_gntshr *xgs)
-{
- if ( xgs->fd == -1 )
- return 0;
-
- return close(xgs->fd);
-}
-
-void *osdep_gntshr_share_pages(xc_gntshr *xgs,
- uint32_t domid, int count,
- uint32_t *refs, int writable,
- uint32_t notify_offset,
- evtchn_port_t notify_port)
-{
- struct ioctl_gntalloc_alloc_gref *gref_info = NULL;
- struct ioctl_gntalloc_unmap_notify notify;
- struct ioctl_gntalloc_dealloc_gref gref_drop;
- int fd = xgs->fd;
- int err;
- void *area = NULL;
- gref_info = malloc(sizeof(*gref_info) + count * sizeof(uint32_t));
- if (!gref_info)
- return NULL;
- gref_info->domid = domid;
- gref_info->flags = writable ? GNTALLOC_FLAG_WRITABLE : 0;
- gref_info->count = count;
-
- err = ioctl(fd, IOCTL_GNTALLOC_ALLOC_GREF, gref_info);
- if (err) {
- GSERROR(xgs->logger, "ioctl failed");
- goto out;
- }
-
- area = mmap(NULL, count * XC_PAGE_SIZE, PROT_READ | PROT_WRITE,
- MAP_SHARED, fd, gref_info->index);
-
- if (area == MAP_FAILED) {
- area = NULL;
- GSERROR(xgs->logger, "mmap failed");
- goto out_remove_fdmap;
- }
-
- notify.index = gref_info->index;
- notify.action = 0;
- if (notify_offset < XC_PAGE_SIZE * count) {
- notify.index += notify_offset;
- notify.action |= UNMAP_NOTIFY_CLEAR_BYTE;
- }
- if (notify_port != -1) {
- notify.event_channel_port = notify_port;
- notify.action |= UNMAP_NOTIFY_SEND_EVENT;
- }
- if (notify.action)
- err = ioctl(fd, IOCTL_GNTALLOC_SET_UNMAP_NOTIFY, ¬ify);
- if (err) {
- GSERROR(xgs->logger, "ioctl SET_UNMAP_NOTIFY failed");
- munmap(area, count * XC_PAGE_SIZE);
- area = NULL;
- }
-
- memcpy(refs, gref_info->gref_ids, count * sizeof(uint32_t));
-
- out_remove_fdmap:
- /* Removing the mapping from the file descriptor does not cause the pages to
- * be deallocated until the mapping is removed.
- */
- gref_drop.index = gref_info->index;
- gref_drop.count = count;
- ioctl(fd, IOCTL_GNTALLOC_DEALLOC_GREF, &gref_drop);
- out:
- free(gref_info);
- return area;
-}
-
-int xc_gntshr_munmap(xc_gntshr *xgs,
- void *start_address, uint32_t count)
-{
- return munmap(start_address, count * XC_PAGE_SIZE);
-}
-
static struct xc_osdep_ops *linux_osdep_init(xc_interface *xch, enum xc_osdep_type type)
{
switch ( type )
#include <mini-os/os.h>
#include <mini-os/mm.h>
#include <mini-os/lib.h>
-#include <mini-os/gntmap.h>
-#include <sys/mman.h>
#include <xen/memory.h>
#include <unistd.h>
#include "xc_private.h"
void minios_interface_close_fd(int fd);
-void minios_gnttab_close_fd(int fd);
extern void minios_interface_close_fd(int fd);
return memalign(alignment, size);
}
-int osdep_gnttab_open(xc_gnttab *xgt)
-{
- int fd = alloc_fd(FTYPE_GNTMAP);
- if ( fd == -1 )
- return -1;
- gntmap_init(&files[fd].gntmap);
- xgt->fd = fd;
- return 0;
-}
-
-int osdep_gnttab_close(xc_gnttab *xgt)
-{
- if ( xgt->fd == -1 )
- return 0;
-
- return close(xgt->fd);
-}
-
-void minios_gnttab_close_fd(int fd)
-{
- gntmap_fini(&files[fd].gntmap);
- files[fd].type = FTYPE_NONE;
-}
-
-void *osdep_gnttab_grant_map(xc_gnttab *xgt,
- uint32_t count, int flags, int prot,
- uint32_t *domids, uint32_t *refs,
- uint32_t notify_offset,
- evtchn_port_t notify_port)
-{
- int fd = xgt->fd;
- int stride = 1;
- if (flags & XC_GRANT_MAP_SINGLE_DOMAIN)
- stride = 0;
- if (notify_offset != -1 || notify_port != -1) {
- errno = ENOSYS;
- return NULL;
- }
- return gntmap_map_grant_refs(&files[fd].gntmap,
- count, domids, stride,
- refs, prot & PROT_WRITE);
-}
-
-int xc_gnttab_munmap(xc_gnttab *xgt, void *start_address, uint32_t count)
-{
- int fd = xgt->fd;
- int ret;
- ret = gntmap_munmap(&files[fd].gntmap,
- (unsigned long) start_address,
- count);
- if (ret < 0) {
- errno = -ret;
- return -1;
- }
- return ret;
-}
-
-int xc_gnttab_set_max_grants(xc_gnttab *xgt, uint32_t count)
-{
- int fd = xgt->fd;
- int ret;
- ret = gntmap_set_max_grants(&files[fd].gntmap,
- count);
- if (ret < 0) {
- errno = -ret;
- return -1;
- }
- return ret;
-}
-
static struct xc_osdep_ops *minios_osdep_init(xc_interface *xch, enum xc_osdep_type type)
{
switch ( type )
+++ /dev/null
-/******************************************************************************
- *
- * Copyright (c) 2007-2008, D G Murray <Derek.Murray@cl.cam.ac.uk>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdlib.h>
-
-#include "xc_private.h"
-
-int osdep_gntshr_open(xc_gnttab *xgt)
-{
- return -1;
-}
-
-int osdep_gntshr_close(xc_gnttab *xgt)
-{
- return 0;
-}
-
-void *osdep_gntshr_share_pages(xc_gntshr *xgs,
- uint32_t domid, int count,
- uint32_t *refs, int writable,
- uint32_t notify_offset,
- evtchn_port_t notify_port)
-{
- abort()
-}
-
-int xc_gntshr_munmap(xc_gntshr *xgs,
- void *start_address, uint32_t count)
-{
- abort();
-}
+++ /dev/null
-/******************************************************************************
- *
- * Copyright (c) 2007-2008, D G Murray <Derek.Murray@cl.cam.ac.uk>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdlib.h>
-
-#include "xc_private.h"
-
-int osdep_gnttab_open(xc_gnttab *xgt)
-{
- return -1;
-}
-
-int osdep_gnttab_close(xc_gnttab *xgt)
-{
- return 0;
-}
-
-int xc_gnttab_set_max_grants(xc_gnttab *xgt, uint32_t count)
-{
- abort();
-}
-
-void *osdep_gnttab_grant_map(xc_gnttab *xgt,
- uint32_t count, int flags, int prot,
- uint32_t *domids, uint32_t *refs,
- uint32_t notify_offset,
- evtchn_port_t notify_port)
-{
- abort();
-}
-
-int xc_gnttab_munmap(xc_gnttab *xgt, void *start_address, uint32_t count)
-{
- abort();
-}
return xch->ops->u.privcmd.hypercall(xch, xch->ops_handle, hypercall);
}
-xc_gnttab *xc_gnttab_open(xentoollog_logger *logger, unsigned open_flags)
-{
- xc_gnttab *xgt = malloc(sizeof(*xgt));
- int rc;
-
- if (!xgt) return NULL;
-
- xgt->fd = -1;
- xgt->logger = logger;
- xgt->logger_tofree = NULL;
-
- if (!xgt->logger) {
- xgt->logger = xgt->logger_tofree =
- (xentoollog_logger*)
- xtl_createlogger_stdiostream(stderr, XTL_PROGRESS, 0);
- if (!xgt->logger) goto err;
- }
-
- rc = osdep_gnttab_open(xgt);
- if ( rc < 0 ) goto err;
-
- return xgt;
-
-err:
- osdep_gnttab_close(xgt);
- xtl_logger_destroy(xgt->logger_tofree);
- free(xgt);
- return NULL;
-}
-
-int xc_gnttab_close(xc_gnttab *xgt)
-{
- int rc;
-
- rc = osdep_gnttab_close(xgt);
- xtl_logger_destroy(xgt->logger_tofree);
- free(xgt);
- return rc;
-}
-
-xc_gntshr *xc_gntshr_open(xentoollog_logger *logger, unsigned open_flags)
-{
- xc_gntshr *xgs = malloc(sizeof(*xgs));
- int rc;
-
- if (!xgs) return NULL;
-
- xgs->fd = -1;
- xgs->logger = logger;
- xgs->logger_tofree = NULL;
-
- if (!xgs->logger) {
- xgs->logger = xgs->logger_tofree =
- (xentoollog_logger*)
- xtl_createlogger_stdiostream(stderr, XTL_PROGRESS, 0);
- if (!xgs->logger) goto err;
- }
-
- rc = osdep_gntshr_open(xgs);
- if ( rc < 0 ) goto err;
-
- return xgs;
-
-err:
- osdep_gntshr_close(xgs);
- xtl_logger_destroy(xgs->logger_tofree);
- free(xgs);
- return NULL;
-}
-
-int xc_gntshr_close(xc_gntshr *xgs)
-{
- int rc;
-
- rc = osdep_gntshr_close(xgs);
- xtl_logger_destroy(xgs->logger_tofree);
- free(xgs);
- return rc;
-}
-
static pthread_key_t errbuf_pkey;
static pthread_once_t errbuf_pkey_once = PTHREAD_ONCE_INIT;
xc_osdep_handle ops_handle; /* opaque data for xc_osdep_ops */
};
-struct xengntdev_handle {
- xentoollog_logger *logger, *logger_tofree;
- int fd;
-};
-
-int osdep_gnttab_open(xc_gnttab *xgt);
-int osdep_gnttab_close(xc_gnttab *xgt);
-
-#define XC_GRANT_MAP_SINGLE_DOMAIN 0x1
-void *osdep_gnttab_grant_map(xc_gnttab *xgt,
- uint32_t count, int flags, int prot,
- uint32_t *domids, uint32_t *refs,
- uint32_t notify_offset,
- evtchn_port_t notify_port);
-
-int osdep_gntshr_open(xc_gntshr *xgs);
-int osdep_gntshr_close(xc_gntshr *xgs);
-
-void *osdep_gntshr_share_pages(xc_gntshr *xgs,
- uint32_t domid, int count,
- uint32_t *refs, int writable,
- uint32_t notify_offset,
- evtchn_port_t notify_port);
-
void xc_report_error(xc_interface *xch, int code, const char *fmt, ...)
__attribute__((format(printf,3,4)));
void xc_reportv(xc_interface *xch, xentoollog_logger *lg, xentoollog_level,
CFLAGS += -DHAVE_DTRACE=1
endif
+$(XENSTORED_OBJS): CFLAGS += $(CFLAGS_libxengnttab)
+
xenstored: $(XENSTORED_OBJS)
- $(CC) $^ $(LDFLAGS) $(LDLIBS_libxenevtchn) $(LDLIBS_libxenctrl) $(SOCKET_LIBS) -o $@ $(APPEND_LDFLAGS)
+ $(CC) $^ $(LDFLAGS) $(LDLIBS_libxenevtchn) $(LDLIBS_libxengnttab) $(LDLIBS_libxenctrl) $(SOCKET_LIBS) -o $@ $(APPEND_LDFLAGS)
xenstored.a: $(XENSTORED_OBJS)
$(AR) cr $@ $^
#define _XENSTORED_CORE_H
#include <xenctrl.h>
+#include <xengnttab.h>
#include <sys/types.h>
#include <dirent.h>
#include <stdbool.h>
#include <stdint.h>
#include <errno.h>
+
#include "xenstore_lib.h"
#include "list.h"
#include "tdb.h"
/* Open a pipe for signal handling */
void init_pipe(int reopen_log_pipe[2]);
-xc_gnttab **xcg_handle;
+xengnttab_handle **xgt_handle;
#endif /* _XENSTORED_CORE_H */
#include <xen/grant_table.h>
static xc_interface **xc_handle;
-xc_gnttab **xcg_handle;
+xengnttab_handle **xgt_handle;
static evtchn_port_t virq_port;
xenevtchn_handle *xce_handle = NULL;
static void *map_interface(domid_t domid, unsigned long mfn)
{
- if (*xcg_handle != NULL) {
+ if (*xgt_handle != NULL) {
/* this is the preferred method */
- return xc_gnttab_map_grant_ref(*xcg_handle, domid,
+ return xengnttab_map_grant_ref(*xgt_handle, domid,
GNTTAB_RESERVED_XENSTORE, PROT_READ|PROT_WRITE);
} else {
return xc_map_foreign_range(*xc_handle, domid,
static void unmap_interface(void *interface)
{
- if (*xcg_handle != NULL)
- xc_gnttab_munmap(*xcg_handle, interface, 1);
+ if (*xgt_handle != NULL)
+ xengnttab_unmap(*xgt_handle, interface, 1);
else
munmap(interface, XC_PAGE_SIZE);
}
return 0;
}
-static int close_xcg_handle(void *_handle)
+static int close_xgt_handle(void *_handle)
{
- xc_gnttab_close(*(xc_gnttab **)_handle);
+ xengnttab_close(*(xengnttab_handle **)_handle);
return 0;
}
talloc_set_destructor(xc_handle, close_xc_handle);
- xcg_handle = talloc(talloc_autofree_context(), xc_gnttab*);
- if (!xcg_handle)
+ xgt_handle = talloc(talloc_autofree_context(), xengnttab_handle*);
+ if (!xgt_handle)
barf_perror("Failed to allocate domain gnttab handle");
- *xcg_handle = xc_gnttab_open(NULL, 0);
- if (*xcg_handle == NULL)
+ *xgt_handle = xengnttab_open(NULL, 0);
+ if (*xgt_handle == NULL)
xprintf("WARNING: Failed to open connection to gnttab\n");
else
- talloc_set_destructor(xcg_handle, close_xcg_handle);
+ talloc_set_destructor(xgt_handle, close_xgt_handle);
xce_handle = xenevtchn_open(NULL, 0);
*/
#include <sys/types.h>
#include <sys/mman.h>
-#include <xenctrl.h>
#include "xenstored_core.h"
#include <xen/grant_table.h>
void *xenbus_map(void)
{
- return xc_gnttab_map_grant_ref(*xcg_handle, xenbus_master_domid(),
+ return xengnttab_map_grant_ref(*xgt_handle, xenbus_master_domid(),
GNTTAB_RESERVED_XENSTORE, PROT_READ|PROT_WRITE);
}
void unmap_xenbus(void *interface)
{
- xc_gnttab_munmap(*xcg_handle, interface, 1);
+ xengnttab_unmap(*xgt_handle, interface, 1);
}
projects / people / liuw / libxenctrl-split / xen.git / commitdiff