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[Qemu-devel] [PATCH V8 15/16] xen: Set running state in xenstore.
From: |
anthony . perard |
Subject: |
[Qemu-devel] [PATCH V8 15/16] xen: Set running state in xenstore. |
Date: |
Wed, 1 Dec 2010 17:39:47 +0000 |
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 36bdf30..b94d56e 100644
--- a/xen-all.c
+++ b/xen-all.c
@@ -58,6 +58,8 @@ typedef struct XenIOState {
/* which vcpu we are serving */
int send_vcpu;
+ struct xs_handle *xenstore;
+
Notifier exit;
} XenIOState;
@@ -426,6 +428,21 @@ 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);
@@ -437,6 +454,9 @@ 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");
}
@@ -455,6 +475,7 @@ 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)
@@ -480,6 +501,12 @@ 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 V8 01/16] xen: Replace some tab-indents with spaces (clean-up)., (continued)
- [Qemu-devel] [PATCH V8 01/16] xen: Replace some tab-indents with spaces (clean-up)., anthony . perard, 2010/12/01
- [Qemu-devel] [PATCH V8 04/16] xen: Support new libxc calls from xen unstable., anthony . perard, 2010/12/01
- [Qemu-devel] [PATCH V8 06/16] xen: Add initialisation of Xen, anthony . perard, 2010/12/01
- [Qemu-devel] [PATCH V8 07/16] xen: Add the Xen platform pci device, anthony . perard, 2010/12/01
- [Qemu-devel] [PATCH V8 08/16] piix_pci: Introduces Xen specific call for irq., anthony . perard, 2010/12/01
- [Qemu-devel] [PATCH V8 09/16] xen: add a 8259 Interrupt Controller, anthony . perard, 2010/12/01
- [Qemu-devel] [PATCH V8 11/16] configure: Always use 64bits target physical addresses with xen enabled., anthony . perard, 2010/12/01
- [Qemu-devel] [PATCH V8 12/16] Introduce qemu_ram_ptr_unlock., anthony . perard, 2010/12/01
- [Qemu-devel] [PATCH V8 10/16] xen: Introduce the Xen mapcache, anthony . perard, 2010/12/01
- [Qemu-devel] [PATCH V8 13/16] vl.c: Introduce getter for shutdown_requested and reset_requested., anthony . perard, 2010/12/01
- [Qemu-devel] [PATCH V8 15/16] xen: Set running state in xenstore.,
anthony . perard <=
- [Qemu-devel] [PATCH V8 14/16] xen: Initialize event channels and io rings, anthony . perard, 2010/12/01
- [Qemu-devel] [PATCH V8 16/16] acpi-piix4: Add Xen hypercall for sleep state., anthony . perard, 2010/12/01
- Re: [Qemu-devel] [PATCH V8 00/16] Xen device model support, Alexander Graf, 2010/12/01