[Xen-devel] [PATCH 5/5] xcbuild: add console and xenstore support

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
---
 tools/xcutils/Makefile  |    4 +-
 tools/xcutils/xcbuild.c |   58 ++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 59 insertions(+), 3 deletions(-)

diff --git a/tools/xcutils/Makefile b/tools/xcutils/Makefile
index 92c5a68..c88f286 100644
--- a/tools/xcutils/Makefile
+++ b/tools/xcutils/Makefile
@@ -20,7 +20,7 @@ CFLAGS_xc_save.o    := $(CFLAGS_libxenctrl) 
$(CFLAGS_libxenguest) $(CFLAGS_libxe
 CFLAGS_readnotes.o  := $(CFLAGS_libxenctrl) $(CFLAGS_libxenguest)
 CFLAGS_lsevtchn.o   := $(CFLAGS_libxenctrl)
 CFLAGS_xcversion.o  := $(CFLAGS_libxenctrl)
-CFLAGS_xcbuild.o    := $(CFLAGS_libxenctrl) $(CFLAGS_libxenguest)
+CFLAGS_xcbuild.o    := $(CFLAGS_libxenctrl) $(CFLAGS_libxenguest) 
$(CFLAGS_libxenstore)
 
 .PHONY: all
 all: build
@@ -35,7 +35,7 @@ xc_save: xc_save.o
        $(CC) $(LDFLAGS) $^ -o $@ $(LDLIBS_libxenctrl) $(LDLIBS_libxenguest) 
$(LDLIBS_libxenstore) $(APPEND_LDFLAGS)
 
 xcbuild: xcbuild.o
-       $(CC) $(LDFLAGS) $^ -o $@ $(LDLIBS_libxenctrl) $(LDLIBS_libxenguest) 
$(APPEND_LDFLAGS)
+       $(CC) $(LDFLAGS) $^ -o $@ $(LDLIBS_libxenctrl) $(LDLIBS_libxenguest) 
$(LDLIBS_libxenstore) $(APPEND_LDFLAGS)
 
 readnotes: readnotes.o
        $(CC) $(LDFLAGS) $^ -o $@ $(LDLIBS_libxenctrl) $(LDLIBS_libxenguest) 
$(APPEND_LDFLAGS)
diff --git a/tools/xcutils/xcbuild.c b/tools/xcutils/xcbuild.c
index a70c3ca..7b5c0f8 100644
--- a/tools/xcutils/xcbuild.c
+++ b/tools/xcutils/xcbuild.c
@@ -1,6 +1,7 @@
 #include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include <errno.h>
 
@@ -8,6 +9,7 @@
 //#include <xenguest.h>
 #include <xentoollog.h>
 #include <xc_dom.h>
+#include <xenstore.h>
 
 int main(int argc, char **argv)
 {
@@ -15,11 +17,19 @@ int main(int argc, char **argv)
        xc_interface *xch;
        int rv;
        const char *image;
-       uint32_t domid;
+       uint32_t domid = 1;
        xen_domain_handle_t handle;
        int maxmem = 128; /* MB */ //atoi(argv[2]);
        int memory_kb = 2*(maxmem + 1)*1024; /* bit of slack... */
        struct xc_dom_image *dom;
+       unsigned long console_mfn;
+       unsigned long console_port;
+       unsigned long store_mfn;
+       unsigned long store_port;
+       struct xs_handle *xs;
+       char *dom_path;
+       char path[256];
+       char val[256];
 
        image = (argc < 2) ? "guest.img" : argv[1];
        printf("Image: %s\n", image);
@@ -103,6 +113,52 @@ int main(int argc, char **argv)
        if (rv) return rv;
        rv = xc_dom_build_image(dom);
        if (rv) return rv;
+
+       xc_get_hvm_param(xch, domid, HVM_PARAM_CONSOLE_PFN, &console_mfn);
+       console_port = xc_evtchn_alloc_unbound(xch, domid, 0);
+       xc_set_hvm_param(xch, domid, HVM_PARAM_CONSOLE_EVTCHN, console_port);
+
+       xc_get_hvm_param(xch, domid, HVM_PARAM_STORE_PFN, &store_mfn);
+       store_port = xc_evtchn_alloc_unbound(xch, domid, 0);
+       xc_set_hvm_param(xch, domid, HVM_PARAM_STORE_EVTCHN, store_port);
+       xs = xs_daemon_open();
+       if (xs == NULL) {
+               printf("Could not contact XenStore");
+               return errno;
+       }
+       dom_path = xs_get_domain_path(xs, domid);
+
+       snprintf(path, sizeof(path), "%s/console/port", dom_path);
+       snprintf(val, sizeof(val), "%lu", console_port);
+       xs_write(xs, XBT_NULL, path, val, strlen(val));
+
+       snprintf(path, sizeof(path), "%s/console/ring-ref", dom_path);
+       snprintf(val, sizeof(val), "%lu", console_mfn);
+       xs_write(xs, XBT_NULL, path, val, strlen(val));
+
+       snprintf(path, sizeof(path), "%s/console/type", dom_path);
+       snprintf(val, sizeof(val), "xenconsoled");
+       xs_write(xs, XBT_NULL, path, val, strlen(val));
+
+       snprintf(path, sizeof(path), "%s/console/output", dom_path);
+       snprintf(val, sizeof(val), "pty");
+       xs_write(xs, XBT_NULL, path, val, strlen(val));
+
+       snprintf(path, sizeof(path), "%s/console/limit", dom_path);
+       snprintf(val, sizeof(val), "%d", 1048576);
+       xs_write(xs, XBT_NULL, path, val, strlen(val));
+
+       snprintf(path, sizeof(path), "%s/store/port", dom_path);
+       snprintf(val, sizeof(val), "%lu", store_port);
+       xs_write(xs, XBT_NULL, path, val, strlen(val));
+
+       snprintf(path, sizeof(path), "%s/store/ring-ref", dom_path);
+       snprintf(val, sizeof(val), "%lu", store_mfn);
+       xs_write(xs, XBT_NULL, path, val, strlen(val));
+       xs_introduce_domain(xs, domid, store_mfn, store_port);
+
+       xs_daemon_close(xs);
+
        rv = xc_dom_boot_image(dom);
        if (rv) return rv;
 
-- 
1.7.2.5


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