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author | Daniel De Graaf <dgdegra@tycho.nsa.gov> | 2012-02-09 18:33:36 +0000 |
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committer | Daniel De Graaf <dgdegra@tycho.nsa.gov> | 2012-02-09 18:33:36 +0000 |
commit | ed4779111f938d38ddc935cbef252784f70c482b (patch) | |
tree | 580e1ebf55792aadc71bfa36516d14b1eac0b4de /tools/xenstore/init-xenstore-domain.c | |
parent | 062c8ffe82563c0bbb3f5b52dcad0a72d22bf670 (diff) | |
download | xen-ed4779111f938d38ddc935cbef252784f70c482b.tar.gz xen-ed4779111f938d38ddc935cbef252784f70c482b.tar.bz2 xen-ed4779111f938d38ddc935cbef252784f70c482b.zip |
xenstored: Add stub domain builder
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Diffstat (limited to 'tools/xenstore/init-xenstore-domain.c')
-rw-r--r-- | tools/xenstore/init-xenstore-domain.c | 94 |
1 files changed, 94 insertions, 0 deletions
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 <fcntl.h> +#include <stdio.h> +#include <string.h> +#include <stdint.h> +#include <stdlib.h> +#include <sys/ioctl.h> +#include <sys/mman.h> +#include <xenctrl.h> +#include <xc_dom.h> +#include <xs.h> +#include <xen/sys/xenbus_dev.h> + +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 <xenstore-kernel> <memory_mb> <flask-label>\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; +} |