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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-unstable] libxenlight: separate logically list_vm and list_domain
# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1263751503 0
# Node ID abc717dc6c2ad1fb371d72d20380c5b6e9f146d3
# Parent efbd58260961aef1a8fe538080013d1c258186ed
libxenlight: separate logically list_vm and list_domain
previously list_domain was something between listing VM and domains.
provide 2 separates API calls to list domains and list vms. the list
vms API filters utility domains like stubdomains, and domain 0
change is_stubdom to properly check the integer and also return a
boolean value.
Signed-off-by: Vincent Hanquez <vincent.hanquez@xxxxxxxxxxxxx>
---
tools/libxl/libxl.c | 55 +++++++++++++++++++++++++++++++++++-----------
tools/libxl/libxl.h | 12 +++++++++-
tools/libxl/libxl_utils.c | 19 ++++++++++-----
tools/libxl/libxl_utils.h | 2 -
tools/libxl/xl.c | 2 -
5 files changed, 68 insertions(+), 22 deletions(-)
diff -r efbd58260961 -r abc717dc6c2a tools/libxl/libxl.c
--- a/tools/libxl/libxl.c Sun Jan 17 18:03:00 2010 +0000
+++ b/tools/libxl/libxl.c Sun Jan 17 18:05:03 2010 +0000
@@ -33,6 +33,8 @@
#include "libxl_utils.h"
#include "libxl_internal.h"
#include "flexarray.h"
+
+#define PAGE_TO_MEMKB(pages) ((pages) * 4)
int libxl_ctx_init(struct libxl_ctx *ctx, int version)
{
@@ -282,21 +284,19 @@ int libxl_domain_resume(struct libxl_ctx
return 0;
}
-struct libxl_dominfo * libxl_domain_list(struct libxl_ctx *ctx, int *nb_domain)
+struct libxl_dominfo * libxl_list_domain(struct libxl_ctx *ctx, int *nb_domain)
{
struct libxl_dominfo *ptr;
- int index, i, ret, first_domain;
+ int index, i, ret;
xc_domaininfo_t info[1024];
int size = 1024;
- first_domain = 1;
- index = 0;
ptr = calloc(size, sizeof(struct libxl_dominfo));
if (!ptr)
return NULL;
- ret = xc_domain_getinfolist(ctx->xch, first_domain, 1024, info);
- for (i = 0; i < ret; i++) {
+ ret = xc_domain_getinfolist(ctx->xch, 0, 1024, info);
+ for (index = i = 0; i < ret; i++) {
memcpy(&(ptr[index].uuid), info[i].handle,
sizeof(xen_domain_handle_t));
ptr[index].domid = info[i].domain;
@@ -306,11 +306,39 @@ struct libxl_dominfo * libxl_domain_list
ptr[index].paused = 1;
else if (info[i].flags & XEN_DOMINF_blocked || info[i].flags &
XEN_DOMINF_running)
ptr[index].running = 1;
-
- first_domain = info[i].domain + 1;
+ ptr[index].max_memkb = PAGE_TO_MEMKB(info[i].max_pages);
+ ptr[index].cpu_time = info[i].cpu_time;
+ ptr[index].vcpu_max_id = info[i].max_vcpu_id;
+ ptr[index].vcpu_online = info[i].nr_online_vcpus;
+
index++;
}
*nb_domain = index;
+ return ptr;
+}
+
+/* this API call only list VM running on this host. a VM can be an aggregate
of multiple domains. */
+struct libxl_vminfo * libxl_list_vm(struct libxl_ctx *ctx, int *nb_vm)
+{
+ struct libxl_vminfo *ptr;
+ int index, i, ret;
+ xc_domaininfo_t info[1024];
+ int size = 1024;
+
+ ptr = calloc(size, sizeof(struct libxl_dominfo));
+ if (!ptr)
+ return NULL;
+
+ ret = xc_domain_getinfolist(ctx->xch, 1, 1024, info);
+ for (index = i = 0; i < ret; i++) {
+ if (libxl_is_stubdom(ctx, info[i].domain, NULL))
+ continue;
+ memcpy(&(ptr[index].uuid), info[i].handle,
sizeof(xen_domain_handle_t));
+ ptr[index].domid = info[i].domain;
+
+ index++;
+ }
+ *nb_vm = index;
return ptr;
}
@@ -1530,7 +1558,8 @@ static int libxl_build_xenpv_qemu_args(s
libxl_device_vfb *vfb,
int num_console,
libxl_device_console *console,
- libxl_device_model_info *info) {
+ libxl_device_model_info *info)
+{
int i = 0, j = 0, num = 0;
memset(info, 0x00, sizeof(libxl_device_model_info));
@@ -1548,8 +1577,8 @@ static int libxl_build_xenpv_qemu_args(s
num++;
}
if (num > 0) {
- uint32_t guest_domid = libxl_is_stubdom(ctx, vfb->domid);
- if (guest_domid) {
+ uint32_t guest_domid;
+ if (libxl_is_stubdom(ctx, vfb->domid, &guest_domid)) {
char *filename;
char *name = libxl_sprintf(ctx, "qemu-dm-%s",
libxl_domid_to_name(ctx, guest_domid));
libxl_create_logfile(ctx, name, &filename);
@@ -1988,7 +2017,7 @@ int libxl_device_pci_add(struct libxl_ct
fclose(f);
}
out:
- if (!libxl_is_stubdom(ctx, domid)) {
+ if (!libxl_is_stubdom(ctx, domid, NULL)) {
rc = xc_assign_device(ctx->xch, domid, pcidev->value);
if (rc < 0)
XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, rc, "xc_assign_device failed");
@@ -2079,7 +2108,7 @@ out:
out:
libxl_device_pci_flr(ctx, pcidev->domain, pcidev->bus, pcidev->dev,
pcidev->func);
- if (!libxl_is_stubdom(ctx, domid)) {
+ if (!libxl_is_stubdom(ctx, domid, NULL)) {
rc = xc_deassign_device(ctx->xch, domid, pcidev->value);
if (rc < 0)
XL_LOG_ERRNOVAL(ctx, XL_LOG_ERROR, rc, "xc_deassign_device
failed");
diff -r efbd58260961 -r abc717dc6c2a tools/libxl/libxl.h
--- a/tools/libxl/libxl.h Sun Jan 17 18:03:00 2010 +0000
+++ b/tools/libxl/libxl.h Sun Jan 17 18:05:03 2010 +0000
@@ -30,6 +30,15 @@ struct libxl_dominfo {
uint8_t dying:1;
uint8_t paused:1;
uint8_t running:1;
+ uint64_t max_memkb;
+ uint64_t cpu_time;
+ uint32_t vcpu_max_id;
+ uint32_t vcpu_online;
+};
+
+struct libxl_vminfo {
+ uint8_t uuid[16];
+ uint32_t domid;
};
struct libxl_ctx {
@@ -295,7 +304,8 @@ int libxl_set_memory_target(struct libxl
int libxl_console_attach(struct libxl_ctx *ctx, uint32_t domid, int cons_num);
-struct libxl_dominfo * libxl_domain_list(struct libxl_ctx *ctx, int
*nb_domain);
+struct libxl_dominfo * libxl_list_domain(struct libxl_ctx *ctx, int
*nb_domain);
+struct libxl_vminfo * libxl_list_vm(struct libxl_ctx *ctx, int *nb_vm);
typedef struct libxl_device_model_starting libxl_device_model_starting;
int libxl_create_device_model(struct libxl_ctx *ctx,
diff -r efbd58260961 -r abc717dc6c2a tools/libxl/libxl_utils.c
--- a/tools/libxl/libxl_utils.c Sun Jan 17 18:03:00 2010 +0000
+++ b/tools/libxl/libxl_utils.c Sun Jan 17 18:05:03 2010 +0000
@@ -60,7 +60,7 @@ int libxl_name_to_domid(struct libxl_ctx
char *domname;
struct libxl_dominfo *dominfo;
- dominfo = libxl_domain_list(ctx, &nb_domains);
+ dominfo = libxl_list_domain(ctx, &nb_domains);
if (!dominfo)
return ERROR_NOMEM;
@@ -85,13 +85,20 @@ int libxl_get_stubdom_id(struct libxl_ct
return 0;
}
-int libxl_is_stubdom(struct libxl_ctx *ctx, int domid)
+int libxl_is_stubdom(struct libxl_ctx *ctx, uint32_t domid, uint32_t
*target_domid)
{
- char *target = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx,
"%s/target", libxl_xs_get_dompath(ctx, domid)));
- if (target)
- return atoi(target);
- else
+ char *target, *endptr;
+ uint32_t value;
+
+ target = libxl_xs_read(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/target",
libxl_xs_get_dompath(ctx, domid)));
+ if (!target)
return 0;
+ value = strtol(target, &endptr, 10);
+ if (*endptr != '\0')
+ return 0;
+ if (target_domid)
+ *target_domid = value;
+ return 1;
}
int libxl_create_logfile(struct libxl_ctx *ctx, char *name, char **full_name)
diff -r efbd58260961 -r abc717dc6c2a tools/libxl/libxl_utils.h
--- a/tools/libxl/libxl_utils.h Sun Jan 17 18:03:00 2010 +0000
+++ b/tools/libxl/libxl_utils.h Sun Jan 17 18:05:03 2010 +0000
@@ -22,7 +22,7 @@ int libxl_name_to_domid(struct libxl_ctx
int libxl_name_to_domid(struct libxl_ctx *ctx, char *name, uint32_t *domid);
char *libxl_domid_to_name(struct libxl_ctx *ctx, uint32_t domid);
int libxl_get_stubdom_id(struct libxl_ctx *ctx, int guest_domid);
-int libxl_is_stubdom(struct libxl_ctx *ctx, int domid);
+int libxl_is_stubdom(struct libxl_ctx *ctx, uint32_t domid, uint32_t
*target_domid);
int libxl_create_logfile(struct libxl_ctx *ctx, char *name, char **full_name);
int libxl_string_to_phystype(struct libxl_ctx *ctx, char *s,
libxl_disk_phystype *phystype);
diff -r efbd58260961 -r abc717dc6c2a tools/libxl/xl.c
--- a/tools/libxl/xl.c Sun Jan 17 18:03:00 2010 +0000
+++ b/tools/libxl/xl.c Sun Jan 17 18:05:03 2010 +0000
@@ -1415,7 +1415,7 @@ void list_domains(void)
}
libxl_ctx_set_log(&ctx, log_callback, NULL);
- info = libxl_domain_list(&ctx, &nb_domain);
+ info = libxl_list_domain(&ctx, &nb_domain);
if (info < 0) {
fprintf(stderr, "libxl_domain_infolist failed.\n");
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