From: Ryan Harper <ryanh@us.ibm.com>
To: Ian Pratt <m+Ian.Pratt@cl.cam.ac.uk>
Cc: xen-devel@lists.xensource.com
Subject: [PATCH] xen,tools: pincpu use vcpu and cpumap_t
Date: Tue, 26 Apr 2005 17:31:09 -0500 [thread overview]
Message-ID: <20050426223109.GC14932@us.ibm.com> (raw)
Here is an update to the previous pincpu patches. This patch updates
the pincpu dom0op to use a cpumap_t pointer, rather than specifying a
size in the interface. cpumap_t is current typedef'ed to an unsigned
long. xm list -v now truncates the cpumap field to only show the bits
of the map that are relevant. That is, if you have four VCPUS, you will
only see the first four bits of the cpumap.
This patch compiles against current unstable tree, but I could not test
it as the current unstable tree crashes dom0 when booting domU. I back
ported the patch to 20050420 snapshot and it worked there.
--
Ryan Harper
Software Engineer; Linux Technology Center
IBM Corp., Austin, Tx
(512) 838-9253 T/L: 678-9253
ryanh@us.ibm.com
diffstat output:
tools/libxc/xc.h | 6 ++
tools/libxc/xc_domain.c | 16 +++++-
tools/python/xen/lowlevel/xc/xc.c | 71 ++++++++++++++++++------------
tools/python/xen/xend/XendClient.py | 5 +-
tools/python/xen/xend/XendDomain.py | 11 ++--
tools/python/xen/xend/XendDomainInfo.py | 6 ++
tools/python/xen/xend/server/SrvDomain.py | 3 -
tools/python/xen/xend/server/SrvUsbif.py | 1
tools/python/xen/xm/main.py | 67 +++++++++++++++++++++++-----
xen/arch/x86/domain.c | 1
xen/common/dom0_ops.c | 28 ++++++++++-
xen/common/domain.c | 1
xen/include/public/dom0_ops.h | 7 ++
xen/include/public/xen.h | 2
xen/include/xen/sched.h | 4 +
15 files changed, 170 insertions(+), 59 deletions(-)
Signed-off-by: Ryan Harper <ryanh@us.ibm.com>
---
diff -urN a/tools/libxc/xc_domain.c b/tools/libxc/xc_domain.c
--- a/tools/libxc/xc_domain.c 2005-04-25 22:14:43.000000000 -0500
+++ b/tools/libxc/xc_domain.c 2005-04-26 11:05:48.183936000 -0500
@@ -16,6 +16,8 @@
{
int err, errno_saved;
dom0_op_t op;
+ u32 vcpu = 0; /* FIXME, hard coded initial pin to vcpu 0 */
+ cpumap_t cpumap = 1<<cpu;
op.cmd = DOM0_CREATEDOMAIN;
op.u.createdomain.domain = (domid_t)*pdomid;
@@ -25,7 +27,7 @@
*pdomid = (u16)op.u.createdomain.domain;
if ( (cpu != -1) &&
- ((err = xc_domain_pincpu(xc_handle, *pdomid, cpu)) != 0) )
+ ((err = xc_domain_pincpu(xc_handle, *pdomid, vcpu, &cpumap)) != 0) )
goto fail;
if ( (err = xc_domain_setcpuweight(xc_handle, *pdomid, cpu_weight)) != 0 )
@@ -84,13 +86,14 @@
int xc_domain_pincpu(int xc_handle,
u32 domid,
- int cpu)
+ int vcpu,
+ cpumap_t *cpumap)
{
dom0_op_t op;
op.cmd = DOM0_PINCPUDOMAIN;
op.u.pincpudomain.domain = (domid_t)domid;
- op.u.pincpudomain.exec_domain = 0;
- op.u.pincpudomain.cpu = cpu;
+ op.u.pincpudomain.exec_domain = vcpu;
+ op.u.pincpudomain.cpumap = cpumap;
return do_dom0_op(xc_handle, &op);
}
@@ -132,6 +135,11 @@
info->max_memkb = op.u.getdomaininfo.max_pages<<(PAGE_SHIFT);
info->shared_info_frame = op.u.getdomaininfo.shared_info_frame;
info->cpu_time = op.u.getdomaininfo.cpu_time;
+ info->vcpus = op.u.getdomaininfo.n_vcpu;
+ memcpy(info->vcpu_to_cpu, &op.u.getdomaininfo.vcpu_to_cpu,
+ MAX_VIRT_CPUS*sizeof(u32));
+ memcpy(info->cpumap, &op.u.getdomaininfo.cpumap,
+ MAX_VIRT_CPUS*sizeof(cpumap_t));
next_domid = (u16)op.u.getdomaininfo.domain + 1;
info++;
diff -urN a/tools/libxc/xc.h b/tools/libxc/xc.h
--- a/tools/libxc/xc.h 2005-04-25 22:14:41.000000000 -0500
+++ b/tools/libxc/xc.h 2005-04-26 10:19:05.894948992 -0500
@@ -78,6 +78,7 @@
typedef struct {
u32 domid;
unsigned int cpu;
+ unsigned int vcpus;
unsigned int dying:1, crashed:1, shutdown:1,
paused:1, blocked:1, running:1;
unsigned int shutdown_reason; /* only meaningful if shutdown==1 */
@@ -85,6 +86,8 @@
unsigned long shared_info_frame;
u64 cpu_time;
unsigned long max_memkb;
+ u32 vcpu_to_cpu[MAX_VIRT_CPUS];
+ cpumap_t cpumap[MAX_VIRT_CPUS];
} xc_dominfo_t;
typedef dom0_getdomaininfo_t xc_domaininfo_t;
@@ -128,7 +131,8 @@
u32 domid);
int xc_domain_pincpu(int xc_handle,
u32 domid,
- int cpu);
+ int vcpu,
+ cpumap_t *cpumap);
/**
* This function will return information about one or more domains.
*
diff -urN a/tools/python/xen/lowlevel/xc/xc.c b/tools/python/xen/lowlevel/xc/xc.c
--- a/tools/python/xen/lowlevel/xc/xc.c 2005-04-25 22:14:38.000000000 -0500
+++ b/tools/python/xen/lowlevel/xc/xc.c 2005-04-26 10:22:51.113710536 -0500
@@ -128,15 +128,16 @@
XcObject *xc = (XcObject *)self;
u32 dom;
- int cpu = -1;
+ int vcpu = 0;
+ cpumap_t cpumap = 0xFFFFFFFF;
- static char *kwd_list[] = { "dom", "cpu", NULL };
+ static char *kwd_list[] = { "dom", "vcpu", "cpumap", NULL };
- if ( !PyArg_ParseTupleAndKeywords(args, kwds, "i|i", kwd_list,
- &dom, &cpu) )
+ if ( !PyArg_ParseTupleAndKeywords(args, kwds, "i|ii", kwd_list,
+ &dom, &vcpu, &cpumap) )
return NULL;
- if ( xc_domain_pincpu(xc->xc_handle, dom, cpu) != 0 )
+ if ( xc_domain_pincpu(xc->xc_handle, dom, vcpu, &cpumap) != 0 )
return PyErr_SetFromErrno(xc_error);
Py_INCREF(zero);
@@ -148,10 +149,10 @@
PyObject *kwds)
{
XcObject *xc = (XcObject *)self;
- PyObject *list;
+ PyObject *list, *vcpu_list, *cpumap_list, *info_dict;
u32 first_dom = 0;
- int max_doms = 1024, nr_doms, i;
+ int max_doms = 1024, nr_doms, i, j;
xc_dominfo_t *info;
static char *kwd_list[] = { "first_dom", "max_doms", NULL };
@@ -168,23 +169,34 @@
list = PyList_New(nr_doms);
for ( i = 0 ; i < nr_doms; i++ )
{
- PyList_SetItem(
- list, i,
- Py_BuildValue("{s:i,s:i,s:i,s:i,s:i,s:i,s:i,s:i"
- ",s:l,s:L,s:l,s:i}",
- "dom", info[i].domid,
- "cpu", info[i].cpu,
- "dying", info[i].dying,
- "crashed", info[i].crashed,
- "shutdown", info[i].shutdown,
- "paused", info[i].paused,
- "blocked", info[i].blocked,
- "running", info[i].running,
- "mem_kb", info[i].nr_pages*4,
- "cpu_time", info[i].cpu_time,
- "maxmem_kb", info[i].max_memkb,
- "shutdown_reason", info[i].shutdown_reason
- ));
+ vcpu_list = PyList_New(MAX_VIRT_CPUS);
+ cpumap_list = PyList_New(MAX_VIRT_CPUS);
+ for ( j = 0; j < MAX_VIRT_CPUS; j++ ) {
+ PyList_SetItem( vcpu_list, j,
+ Py_BuildValue("i", info[i].vcpu_to_cpu[j]));
+ PyList_SetItem( cpumap_list, j,
+ Py_BuildValue("i", info[i].cpumap[j]));
+ }
+
+ info_dict = Py_BuildValue("{s:i,s:i,s:i,s:i,s:i,s:i,s:i,s:i,s:i"
+ ",s:l,s:L,s:l,s:i}",
+ "dom", info[i].domid,
+ "cpu", info[i].cpu,
+ "vcpus", info[i].vcpus,
+ "dying", info[i].dying,
+ "crashed", info[i].crashed,
+ "shutdown", info[i].shutdown,
+ "paused", info[i].paused,
+ "blocked", info[i].blocked,
+ "running", info[i].running,
+ "mem_kb", info[i].nr_pages*4,
+ "cpu_time", info[i].cpu_time,
+ "maxmem_kb", info[i].max_memkb,
+ "shutdown_reason", info[i].shutdown_reason);
+ PyDict_SetItemString( info_dict, "vcpu_to_cpu", vcpu_list );
+ PyDict_SetItemString( info_dict, "cpumap", cpumap_list );
+ PyList_SetItem( list, i, info_dict);
+
}
free(info);
@@ -878,9 +890,10 @@
{ "domain_pincpu",
(PyCFunction)pyxc_domain_pincpu,
METH_VARARGS | METH_KEYWORDS, "\n"
- "Pin a domain to a specified CPU.\n"
- " dom [int]: Identifier of domain to be pinned.\n"
- " cpu [int, -1]: CPU to pin to, or -1 to unpin\n\n"
+ "Pin a VCPU to a specified set CPUs.\n"
+ " dom [int]: Identifier of domain to which VCPU belongs.\n"
+ " vcpu [int, 0]: VCPU being pinned.\n"
+ " cpumap [int, -1]: Bitmap of usable CPUs.\n\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "domain_getinfo",
@@ -895,6 +908,7 @@
" domain-id space was reached.\n"
" dom [int]: Identifier of domain to which this info pertains\n"
" cpu [int]: CPU to which this domain is bound\n"
+ " vcpus [int]: Number of Virtual CPUS in this domain\n"
" dying [int]: Bool - is the domain dying?\n"
" crashed [int]: Bool - has the domain crashed?\n"
" shutdown [int]: Bool - has the domain shut itself down?\n"
@@ -905,7 +919,8 @@
" maxmem_kb [int]: Maximum memory limit, in kilobytes\n"
" cpu_time [long]: CPU time consumed, in nanoseconds\n"
" shutdown_reason [int]: Numeric code from guest OS, explaining "
- "reason why it shut itself down.\n" },
+ "reason why it shut itself down.\n"
+ " vcpu_to_cpu [[int]]: List that maps VCPUS to CPUS\n" },
{ "linux_save",
(PyCFunction)pyxc_linux_save,
diff -urN a/tools/python/xen/xend/server/SrvDomain.py b/tools/python/xen/xend/server/SrvDomain.py
--- a/tools/python/xen/xend/server/SrvDomain.py 2005-04-25 22:14:42.000000000 -0500
+++ b/tools/python/xen/xend/server/SrvDomain.py 2005-04-26 10:12:31.130962240 -0500
@@ -92,7 +92,8 @@
def op_pincpu(self, op, req):
fn = FormFn(self.xd.domain_pincpu,
[['dom', 'str'],
- ['cpu', 'int']])
+ ['vcpu', 'int'],
+ ['cpumap', 'int']])
val = fn(req.args, {'dom': self.dom.id})
return val
diff -urN a/tools/python/xen/xend/server/SrvUsbif.py b/tools/python/xen/xend/server/SrvUsbif.py
--- a/tools/python/xen/xend/server/SrvUsbif.py 2005-04-25 22:14:46.000000000 -0500
+++ b/tools/python/xen/xend/server/SrvUsbif.py 2005-04-26 10:11:54.490532432 -0500
@@ -107,6 +107,7 @@
def op_pincpu(self, op, req):
fn = FormFn(self.xd.domain_pincpu,
[['dom', 'str'],
+ ['vcpu', 'int'],
['cpu', 'int']])
val = fn(req.args, {'dom': self.dom.id})
return val
diff -urN a/tools/python/xen/xend/XendClient.py b/tools/python/xen/xend/XendClient.py
--- a/tools/python/xen/xend/XendClient.py 2005-04-25 22:14:37.000000000 -0500
+++ b/tools/python/xen/xend/XendClient.py 2005-04-26 10:12:31.140960720 -0500
@@ -246,10 +246,11 @@
'live' : live,
'resource' : resource })
- def xend_domain_pincpu(self, id, cpu):
+ def xend_domain_pincpu(self, id, vcpu, cpumap):
return self.xendPost(self.domainurl(id),
{'op' : 'pincpu',
- 'cpu' : cpu })
+ 'vcpu' : vcpu,
+ 'cpumap' : cpumap })
def xend_domain_cpu_bvt_set(self, id, mcuadv, warpback, warpvalue, warpl, warpu):
return self.xendPost(self.domainurl(id),
diff -urN a/tools/python/xen/xend/XendDomainInfo.py b/tools/python/xen/xend/XendDomainInfo.py
--- a/tools/python/xen/xend/XendDomainInfo.py 2005-04-25 22:14:38.000000000 -0500
+++ b/tools/python/xen/xend/XendDomainInfo.py 2005-04-26 10:12:31.142960416 -0500
@@ -372,6 +372,10 @@
sxpr.append(['shutdown_reason', reason])
sxpr.append(['cpu', self.info['cpu']])
sxpr.append(['cpu_time', self.info['cpu_time']/1e9])
+ sxpr.append(['vcpus', self.info['vcpus']])
+ sxpr.append(['cpumap', self.info['cpumap']])
+ sxpr.append(['vcpu_to_cpu', ''.join(map(lambda x: str(x),
+ self.info['vcpu_to_cpu'][0:self.info['vcpus']]))])
if self.start_time:
up_time = time.time() - self.start_time
@@ -449,7 +453,7 @@
raise VmError('missing memory size')
cpu = sxp.child_value(config, 'cpu')
if self.recreate and self.dom and cpu is not None:
- xc.domain_pincpu(self.dom, int(cpu))
+ xc.domain_pincpu(self.dom, 0, 1<<int(cpu))
try:
image = sxp.child_value(self.config, 'image')
self.vcpus = int(sxp.child_value(image, 'vcpus'))
diff -urN a/tools/python/xen/xend/XendDomain.py b/tools/python/xen/xend/XendDomain.py
--- a/tools/python/xen/xend/XendDomain.py 2005-04-25 22:14:38.000000000 -0500
+++ b/tools/python/xen/xend/XendDomain.py 2005-04-26 10:12:31.151959048 -0500
@@ -610,15 +610,16 @@
xmigrate = XendMigrate.instance()
return xmigrate.save_begin(dominfo, dst)
- def domain_pincpu(self, id, cpu):
- """Pin a domain to a cpu.
+ def domain_pincpu(self, id, vcpu, cpumap):
+ """Set which cpus vcpu can use
- @param id: domain
- @param cpu: cpu number
+ @param id: domain
+ @param vcpu: vcpu number
+ @param cpumap: bitmap of usbale cpus
"""
dominfo = self.domain_lookup(id)
try:
- return xc.domain_pincpu(int(dominfo.id), cpu)
+ return xc.domain_pincpu(int(dominfo.id), vcpu, cpumap)
except Exception, ex:
raise XendError(str(ex))
diff -urN a/tools/python/xen/xm/main.py b/tools/python/xen/xm/main.py
--- a/tools/python/xen/xm/main.py 2005-04-25 22:14:43.000000000 -0500
+++ b/tools/python/xen/xm/main.py 2005-04-26 10:50:57.373360104 -0500
@@ -6,6 +6,8 @@
import sys
from getopt import getopt
import socket
+import warnings
+warnings.filterwarnings('ignore', category=FutureWarning)
from xen.xend import PrettyPrint
from xen.xend import sxp
@@ -340,8 +342,8 @@
name = "list"
info = """List information about domains."""
- short_options = 'l'
- long_options = ['long']
+ short_options = 'lv'
+ long_options = ['long','vcpus']
def help(self, args):
if help:
@@ -350,11 +352,13 @@
Either all domains or the domains given.
-l, --long Get more detailed information.
+ -v, --vcpus Show VCPU to CPU mapping.
"""
return
def main(self, args):
use_long = 0
+ show_vcpus = 0
(options, params) = getopt(args[1:],
self.short_options,
self.long_options)
@@ -362,6 +366,8 @@
for (k, v) in options:
if k in ['-l', '--long']:
use_long = 1
+ if k in ['-v', '--vcpus']:
+ show_vcpus = 1
if n == 0:
doms = server.xend_domains()
@@ -371,11 +377,13 @@
if use_long:
self.long_list(doms)
+ elif show_vcpus:
+ self.show_vcpus(doms)
else:
self.brief_list(doms)
def brief_list(self, doms):
- print 'Name Id Mem(MB) CPU State Time(s) Console'
+ print 'Name Id Mem(MB) CPU VCPU(s) State Time(s) Console'
for dom in doms:
info = server.xend_domain(dom)
d = {}
@@ -383,6 +391,7 @@
d['name'] = sxp.child_value(info, 'name', '??')
d['mem'] = int(sxp.child_value(info, 'memory', '0'))
d['cpu'] = int(sxp.child_value(info, 'cpu', '0'))
+ d['vcpus'] = int(sxp.child_value(info, 'vcpus', '0'))
d['state'] = sxp.child_value(info, 'state', '??')
d['cpu_time'] = float(sxp.child_value(info, 'cpu_time', '0'))
console = sxp.child(info, 'console')
@@ -390,9 +399,27 @@
d['port'] = sxp.child_value(console, 'console_port')
else:
d['port'] = ''
- print ("%(name)-16s %(dom)3d %(mem)7d %(cpu)3d %(state)5s %(cpu_time)7.1f %(port)4s"
+ print ("%(name)-16s %(dom)3d %(mem)7d %(cpu)3d %(vcpus)5d %(state)5s %(cpu_time)7.1f %(port)4s"
% d)
+ def show_vcpus(self, doms):
+ print 'Name Id VCPU CPU CPUMAP'
+ for dom in doms:
+ info = server.xend_domain(dom)
+ vcpu_to_cpu = sxp.child_value(info, 'vcpu_to_cpu', '?').replace('-','')
+ cpumap = sxp.child_value(info, 'cpumap', [])
+ mask = ((int(sxp.child_value(info, 'vcpus', '0')))**2) - 1
+ count = 0
+ for cpu in vcpu_to_cpu:
+ d = {}
+ d['name'] = sxp.child_value(info, 'name', '??')
+ d['dom'] = int(sxp.child_value(info, 'id', '-1'))
+ d['vcpu'] = int(count)
+ d['cpu'] = int(cpu)
+ d['cpumap'] = int(cpumap[count])&mask
+ count = count + 1
+ print ("%(name)-16s %(dom)3d %(vcpu)4d %(cpu)3d 0x%(cpumap)x" % d)
+
def long_list(self, doms):
for dom in doms:
info = server.xend_domain(dom)
@@ -474,17 +501,35 @@
class ProgPincpu(Prog):
group = 'domain'
name = "pincpu"
- info = """Pin a domain to a cpu. """
+ info = """Set which cpus a VCPU can use. """
def help(self, args):
- print args[0],'DOM CPU'
- print '\nPin domain DOM to cpu CPU.'
+ print args[0],'DOM VCPU CPUS'
+ print '\nSet which cpus VCPU in domain DOM can use.'
+
+ # convert list of cpus to bitmap integer value
+ def make_map(self, cpulist):
+ cpus = []
+ cpumap = 0
+ for c in cpulist.split(','):
+ if len(c) > 1:
+ (x,y) = c.split('-')
+ for i in range(int(x),int(y)+1):
+ cpus.append(int(i))
+ else:
+ cpus.append(int(c))
+ cpus.sort()
+ for c in cpus:
+ cpumap = cpumap | 1<<c
+
+ return cpumap
def main(self, args):
- if len(args) != 3: self.err("%s: Invalid argument(s)" % args[0])
- dom = args[1]
- cpu = int(args[2])
- server.xend_domain_pincpu(dom, cpu)
+ if len(args) != 4: self.err("%s: Invalid argument(s)" % args[0])
+ dom = args[1]
+ vcpu = int(args[2])
+ cpumap = self.make_map(args[3]);
+ server.xend_domain_pincpu(dom, vcpu, cpumap)
xm.prog(ProgPincpu)
diff -urN a/xen/arch/x86/domain.c b/xen/arch/x86/domain.c
--- a/xen/arch/x86/domain.c 2005-04-25 22:14:40.000000000 -0500
+++ b/xen/arch/x86/domain.c 2005-04-26 10:12:31.164957072 -0500
@@ -248,6 +248,7 @@
d->shared_info = (void *)alloc_xenheap_page();
memset(d->shared_info, 0, PAGE_SIZE);
ed->vcpu_info = &d->shared_info->vcpu_data[ed->eid];
+ ed->cpumap = CPUMAP_RUNANYWHERE;
SHARE_PFN_WITH_DOMAIN(virt_to_page(d->shared_info), d);
machine_to_phys_mapping[virt_to_phys(d->shared_info) >>
PAGE_SHIFT] = INVALID_M2P_ENTRY;
diff -urN a/xen/common/dom0_ops.c b/xen/common/dom0_ops.c
--- a/xen/common/dom0_ops.c 2005-04-25 22:14:38.000000000 -0500
+++ b/xen/common/dom0_ops.c 2005-04-26 10:59:36.036511320 -0500
@@ -222,7 +222,7 @@
domid_t dom = op->u.pincpudomain.domain;
struct domain *d = find_domain_by_id(dom);
struct exec_domain *ed;
- int cpu = op->u.pincpudomain.cpu;
+ cpumap_t *cpumap = op->u.pincpudomain.cpumap;
if ( d == NULL )
{
@@ -230,6 +230,13 @@
break;
}
+ if ( (op->u.pincpudomain.exec_domain >= MAX_VIRT_CPUS) ||
+ !d->exec_domain[op->u.pincpudomain.exec_domain] )
+ {
+ ret = -EINVAL;
+ break;
+ }
+
ed = d->exec_domain[op->u.pincpudomain.exec_domain];
if ( ed == NULL )
{
@@ -245,17 +252,23 @@
break;
}
- if ( cpu == -1 )
+ /* update cpumap for this ed */
+ ed->cpumap = *(cpumap);
+
+ if ( *(cpumap) == CPUMAP_RUNANYWHERE )
{
clear_bit(EDF_CPUPINNED, &ed->ed_flags);
}
else
{
+ /* pick a new cpu from the usable map */
+ int new_cpu = (int)find_first_set_bit(*(cpumap)) % smp_num_cpus;
+
exec_domain_pause(ed);
- if ( ed->processor != (cpu % smp_num_cpus) )
+ if ( ed->processor != new_cpu )
set_bit(EDF_MIGRATED, &ed->ed_flags);
set_bit(EDF_CPUPINNED, &ed->ed_flags);
- ed->processor = cpu % smp_num_cpus;
+ ed->processor = new_cpu;
exec_domain_unpause(ed);
}
@@ -309,6 +322,12 @@
break;
}
+ memset(&op->u.getdomaininfo.vcpu_to_cpu,-1,MAX_VIRT_CPUS*sizeof(u8));
+ for_each_exec_domain ( d, ed ) {
+ op->u.getdomaininfo.vcpu_to_cpu[ed->eid] = ed->processor;
+ op->u.getdomaininfo.cpumap[ed->eid] = ed->cpumap;
+ }
+
ed = d->exec_domain[op->u.getdomaininfo.exec_domain];
op->u.getdomaininfo.flags =
@@ -326,6 +345,7 @@
op->u.getdomaininfo.tot_pages = d->tot_pages;
op->u.getdomaininfo.max_pages = d->max_pages;
op->u.getdomaininfo.cpu_time = ed->cpu_time;
+ op->u.getdomaininfo.n_vcpu = d->shared_info->n_vcpu;
op->u.getdomaininfo.shared_info_frame =
__pa(d->shared_info) >> PAGE_SHIFT;
diff -urN a/xen/common/domain.c b/xen/common/domain.c
--- a/xen/common/domain.c 2005-04-25 22:14:41.000000000 -0500
+++ b/xen/common/domain.c 2005-04-26 10:12:31.308935184 -0500
@@ -295,6 +295,7 @@
ed = d->exec_domain[vcpu];
atomic_set(&ed->pausecnt, 0);
+ ed->cpumap = CPUMAP_RUNANYWHERE;
memcpy(&ed->arch, &idle0_exec_domain.arch, sizeof(ed->arch));
diff -urN a/xen/include/public/dom0_ops.h b/xen/include/public/dom0_ops.h
--- a/xen/include/public/dom0_ops.h 2005-04-25 22:14:44.000000000 -0500
+++ b/xen/include/public/dom0_ops.h 2005-04-26 10:17:26.558050496 -0500
@@ -88,6 +88,9 @@
memory_t max_pages;
memory_t shared_info_frame; /* MFN of shared_info struct */
u64 cpu_time;
+ u32 n_vcpu;
+ u32 vcpu_to_cpu[MAX_VIRT_CPUS]; /* current mapping */
+ cpumap_t cpumap[MAX_VIRT_CPUS]; /* allowable mapping */
} dom0_getdomaininfo_t;
#define DOM0_SETDOMAININFO 13
@@ -170,14 +173,14 @@
} dom0_readconsole_t;
/*
- * Pin Domain to a particular CPU (use -1 to unpin)
+ * Set which cpus an exec_domain can use
*/
#define DOM0_PINCPUDOMAIN 20
typedef struct {
/* IN variables. */
domid_t domain;
u16 exec_domain;
- s32 cpu; /* -1 implies unpin */
+ cpumap_t *cpumap;
} dom0_pincpudomain_t;
/* Get trace buffers machine base address */
diff -urN a/xen/include/public/xen.h b/xen/include/public/xen.h
--- a/xen/include/public/xen.h 2005-04-25 22:14:40.000000000 -0500
+++ b/xen/include/public/xen.h 2005-04-26 10:54:26.318595600 -0500
@@ -473,6 +473,8 @@
/* For use in guest OSes. */
extern shared_info_t *HYPERVISOR_shared_info;
+typedef unsigned long cpumap_t;
+
#endif /* !__ASSEMBLY__ */
#endif /* __XEN_PUBLIC_XEN_H__ */
diff -urN a/xen/include/xen/sched.h b/xen/include/xen/sched.h
--- a/xen/include/xen/sched.h 2005-04-25 22:14:39.000000000 -0500
+++ b/xen/include/xen/sched.h 2005-04-26 10:57:19.902206880 -0500
@@ -58,6 +58,8 @@
void destroy_event_channels(struct domain *d);
int init_exec_domain_event_channels(struct exec_domain *ed);
+
+#define CPUMAP_RUNANYWHERE 0xFFFFFFFF
struct exec_domain
{
u32 processor;
@@ -83,6 +85,8 @@
atomic_t pausecnt;
+ cpumap_t cpumap; /* which cpus this domain can run on */
+
struct arch_exec_domain arch;
};
next reply other threads:[~2005-04-26 22:31 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-26 22:31 Ryan Harper [this message]
2005-04-26 23:14 ` [PATCH] xen,tools: pincpu use vcpu and cpumap_t Lars Rasmusson
2005-05-03 16:51 ` Mike Wray
2005-05-03 23:58 ` [RESUBMIT] [PATCH] xen, tools: " Ryan Harper
2005-05-05 15:49 ` Mike Wray
2005-05-10 13:59 ` Mike Wray
2005-05-10 14:59 ` Ryan Harper
2005-05-10 15:55 ` Ryan Harper
2005-05-11 15:16 ` Mike Wray
2005-05-11 20:30 ` Christian Limpach
2005-05-11 20:41 ` Kip Macy
2005-05-11 21:17 ` Christian Limpach
2005-05-11 21:18 ` Kip Macy
2005-05-12 15:16 ` Mike Wray
2005-05-12 16:06 ` Mike Wray
2005-05-12 16:17 ` Ryan Harper
-- strict thread matches above, loose matches on Subject: below --
2005-04-27 0:51 [PATCH] xen,tools: " Ian Pratt
2005-04-27 14:04 ` Ryan Harper
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