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[Qemu-devel] [PATCH V5 13/14] xen: Set running state in xenstore.
From: |
anthony . perard |
Subject: |
[Qemu-devel] [PATCH V5 13/14] xen: Set running state in xenstore. |
Date: |
Mon, 11 Oct 2010 17:07:09 +0100 |
From: Anthony PERARD <address@hidden>
This tells to the xen management tool that the machine can begin run.
Signed-off-by: Anthony PERARD <address@hidden>
---
xen-all.c | 27 +++++++++++++++++++++++++++
1 files changed, 27 insertions(+), 0 deletions(-)
diff --git a/xen-all.c b/xen-all.c
index a0d1b9b..fc862cb 100644
--- a/xen-all.c
+++ b/xen-all.c
@@ -57,6 +57,8 @@ typedef struct XenIOState {
/* which vcpu we are serving */
int send_vcpu;
+ struct xs_handle *xenstore;
+
Notifier exit;
} XenIOState;
@@ -425,6 +427,21 @@ static void cpu_handle_ioreq(void *opaque)
}
}
+static void xenstore_record_dm_state(XenIOState *s, const char *state)
+{
+ char *path = NULL;
+
+ if (asprintf(&path, "/local/domain/0/device-model/%u/state", xen_domid) ==
-1) {
+ fprintf(stderr, "out of memory recording dm state\n");
+ exit(1);
+ }
+ if (!xs_write(s->xenstore, XBT_NULL, path, state, strlen(state))) {
+ fprintf(stderr, "error recording dm state\n");
+ exit(1);
+ }
+ free(path);
+}
+
static void xen_main_loop_prepare(XenIOState *state)
{
int evtchn_fd = state->xce_handle == -1 ? -1 :
xc_evtchn_fd(state->xce_handle);
@@ -436,6 +453,9 @@ static void xen_main_loop_prepare(XenIOState *state)
if (evtchn_fd != -1) {
qemu_set_fd_handler(evtchn_fd, cpu_handle_ioreq, NULL, state);
}
+
+ /* record state running */
+ xenstore_record_dm_state(state, "running");
}
@@ -454,6 +474,7 @@ static void xen_exit_notifier(Notifier *n)
XenIOState *state = container_of(n, XenIOState, exit);
xc_evtchn_close(state->xce_handle);
+ xs_daemon_close(state->xenstore);
}
int xen_init(int smp_cpus)
@@ -476,6 +497,12 @@ int xen_init(int smp_cpus)
return -errno;
}
+ state->xenstore = xs_daemon_open();
+ if (state->xenstore == NULL) {
+ perror("xen: xenstore open");
+ return -errno;
+ }
+
state->exit.notify = xen_exit_notifier;
qemu_add_exit_notifier(&state->exit);
--
1.7.1
- [Qemu-devel] [PATCH V5 04/14] Introduce -accel command option., (continued)
- [Qemu-devel] [PATCH V5 04/14] Introduce -accel command option., anthony . perard, 2010/10/11
- [Qemu-devel] [PATCH V5 01/14] xen: Replace some tab-indents with spaces (clean-up)., anthony . perard, 2010/10/11
- [Qemu-devel] [PATCH V5 05/14] xen: Add xen in -accel option., anthony . perard, 2010/10/11
- [Qemu-devel] [PATCH V5 06/14] xen: Add the Xen platform pci device, anthony . perard, 2010/10/11
- [Qemu-devel] [PATCH V5 07/14] piix_pci: Introduces Xen specific call for irq., anthony . perard, 2010/10/11
- [Qemu-devel] [PATCH V5 08/14] xen: add a 8259 Interrupt Controller, anthony . perard, 2010/10/11
- [Qemu-devel] [PATCH V5 09/14] xen: Introduce the Xen mapcache, anthony . perard, 2010/10/11
- [Qemu-devel] [PATCH V5 10/14] Introduce qemu_ram_ptr_unlock., anthony . perard, 2010/10/11
- [Qemu-devel] [PATCH V5 11/14] vl.c: Introduce getter for shutdown_requested and reset_requested., anthony . perard, 2010/10/11
- [Qemu-devel] [PATCH V5 13/14] xen: Set running state in xenstore.,
anthony . perard <=
- [Qemu-devel] [PATCH V5 12/14] xen: Initialize event channels and io rings, anthony . perard, 2010/10/11
- [Qemu-devel] [PATCH V5 14/14] acpi-piix4: Add Xen hypercall for sleep state., anthony . perard, 2010/10/11