From ed4779111f938d38ddc935cbef252784f70c482b Mon Sep 17 00:00:00 2001 From: Daniel De Graaf Date: Thu, 9 Feb 2012 18:33:36 +0000 Subject: xenstored: Add stub domain builder Signed-off-by: Daniel De Graaf Acked-by: Ian Campbell Cc: Stefano Stabellini Committed-by: Ian Jackson --- tools/xenstore/Makefile | 11 ++-- tools/xenstore/init-xenstore-domain.c | 94 +++++++++++++++++++++++++++++++++++ 2 files changed, 102 insertions(+), 3 deletions(-) create mode 100644 tools/xenstore/init-xenstore-domain.c (limited to 'tools/xenstore') diff --git a/tools/xenstore/Makefile b/tools/xenstore/Makefile index e510b4f72d..ea1b89b190 100644 --- a/tools/xenstore/Makefile +++ b/tools/xenstore/Makefile @@ -27,7 +27,7 @@ LIBXENSTORE := libxenstore.a xenstore xenstore-control: CFLAGS += -static endif -ALL_TARGETS = libxenstore.so libxenstore.a clients xs_tdb_dump xenstored +ALL_TARGETS = libxenstore.so libxenstore.a clients xs_tdb_dump xenstored init-xenstore-domain ifdef CONFIG_STUBDOM CFLAGS += -DNO_SOCKETS=1 @@ -50,7 +50,12 @@ xenstored_probes.o: xenstored_solaris.o CFLAGS += -DHAVE_DTRACE=1 endif - + +init-xenstore-domain.o: CFLAGS += $(CFLAGS_libxenguest) + +init-xenstore-domain: init-xenstore-domain.o $(LIBXENSTORE) + $(CC) $(LDFLAGS) $^ $(LDLIBS_libxenctrl) $(LDLIBS_libxenguest) $(LDLIBS_libxenstore) -o $@ $(APPEND_LDFLAGS) + xenstored: $(XENSTORED_OBJS) $(CC) $(LDFLAGS) $^ $(LDLIBS_libxenctrl) $(SOCKET_LIBS) -o $@ $(APPEND_LDFLAGS) @@ -86,7 +91,7 @@ libxenstore.a: xs.o xs_lib.o clean: rm -f *.a *.o *.opic *.so* xenstored_probes.h rm -f xenstored xs_random xs_stress xs_crashme - rm -f xs_tdb_dump xenstore-control + rm -f xs_tdb_dump xenstore-control init-xenstore-domain rm -f xenstore $(CLIENTS) $(RM) $(DEPS) diff --git a/tools/xenstore/init-xenstore-domain.c b/tools/xenstore/init-xenstore-domain.c new file mode 100644 index 0000000000..f3a4497bcc --- /dev/null +++ b/tools/xenstore/init-xenstore-domain.c @@ -0,0 +1,94 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static uint32_t domid = -1; + +static int build(xc_interface *xch, char** argv) +{ + char cmdline[512]; + uint32_t ssid; + xen_domain_handle_t handle = { 0 }; + int rv; + int xs_fd = open("/dev/xen/xenbus_backend", O_RDWR); + struct xc_dom_image *dom; + int maxmem = atoi(argv[2]); + int limit_kb = (maxmem + 1)*1024; + + rv = xc_flask_context_to_sid(xch, argv[3], strlen(argv[3]), &ssid); + if (rv) return rv; + rv = xc_domain_create(xch, ssid, handle, 0, &domid); + if (rv) return rv; + rv = xc_domain_max_vcpus(xch, domid, 1); + if (rv) return rv; + rv = xc_domain_setmaxmem(xch, domid, limit_kb); + if (rv) return rv; + rv = xc_domain_set_memmap_limit(xch, domid, limit_kb); + if (rv) return rv; + + rv = ioctl(xs_fd, IOCTL_XENBUS_BACKEND_SETUP, domid); + if (rv < 0) return rv; + snprintf(cmdline, 512, "--event %d --internal-db", rv); + + dom = xc_dom_allocate(xch, cmdline, NULL); + rv = xc_dom_kernel_file(dom, argv[1]); + if (rv) return rv; + rv = xc_dom_boot_xen_init(dom, xch, domid); + if (rv) return rv; + rv = xc_dom_parse_image(dom); + if (rv) return rv; + rv = xc_dom_mem_init(dom, maxmem); + if (rv) return rv; + rv = xc_dom_boot_mem_init(dom); + if (rv) return rv; + rv = xc_dom_build_image(dom); + if (rv) return rv; + rv = xc_dom_boot_image(dom); + if (rv) return rv; + + xc_dom_release(dom); + + rv = xc_domain_set_virq_handler(xch, domid, VIRQ_DOM_EXC); + if (rv) return rv; + rv = xc_domain_unpause(xch, domid); + if (rv) return rv; + + return 0; +} + +int main(int argc, char** argv) +{ + xc_interface *xch; + struct xs_handle *xsh; + char buf[16]; + int rv; + + if (argc != 4) { + printf("Use: %s \n", argv[0]); + return 2; + } + + xch = xc_interface_open(NULL, NULL, 0); + if (!xch) return 1; + + rv = build(xch, argv); + + xc_interface_close(xch); + + if (rv) return 1; + + xsh = xs_open(0); + rv = snprintf(buf, 16, "%d", domid); + xs_write(xsh, XBT_NULL, "/tool/xenstored/domid", buf, rv); + xs_daemon_close(xsh); + + return 0; +} -- cgit v1.2.3