search for: node_to_cpumask

Currently cpufreq and xenpm are out of sync. Fix cpufreq reporting of if turbo mode is enabled or not. Fix xenpm to not decode for tristate, but a boolean. Signed-off-by: Jacob Shin <jacob.shin@amd.com> --- tools/misc/xenpm.c | 14 +++----------- xen/drivers/cpufreq/utility.c | 2 +- 2 files changed, 4 insertions(+), 12 deletions(-) diff --git a/tools/misc/xenpm.c

...eave the node-affinity of the domain alone. + */ if ( d->auto_node_affinity ) { - /* Node-affinity is automaically computed from all vcpu-affinities */ + nodes_clear(d->node_affinity); for_each_online_node ( node ) if ( cpumask_intersects(&node_to_cpumask(node), cpumask) ) - node_set(node, nodemask); - - d->node_affinity = nodemask; - } - else - { - /* Node-affinity is provided by someone else, just filter out cpus - * that are either offline or not in the affinity of any vcpus. */ - nodemask =...

The patchset will add basic NUMA support to Xen (hypervisor only). We borrowed from Linux support for NUMA SRAT table parsing, discontiguous memory tracking (mem chunks), and cpu support (node_to_cpumask etc). The hypervisor parses the SRAT tables and constructs mappings for each node such as node to cpu mappings and memory range to node mappings. Using this information, we also modified the page allocator to provide a simple NUMA-aware API. The modified allocator will attempt to find pages loca...

Testing on an 8-node 128-way NUMA machine has exposed a problem with Xen''s nr_cpus calculation. In this case, since Xen cuts off recognized CPUs at 32, the machine appears to have 16 CPUs on the first and second nodes and none on the remaining nodes. Given this asymmetry, the calculation of sockets_per_node (which is later used to calculate nr_cpus) is incorrect:

...sn''t + * know about cpumask_t and is accepting a u64 */ + memset(node_to_cpu_64, 0, sizeof(node_to_cpu_64)); + for ( i = 0; i < pi->nr_nodes; i++ ) { + for ( j = 0; j < num_online_cpus(); j++ ) + if ( cpu_isset(j, node_to_cpumask(i)) ) + node_to_cpu_64[i] |= (u64)1 << j; + + if ( copy_to_guest_offset(sysctl->u.physinfo.node_to_cpu, + i, &(node_to_cpu_64[i]), 1) ) { + ret = -EFAULT; + break; +...

Hello everyone, this is the fourth version of the patch series that introduces ARMv7 with virtualization extensions support in Xen. The series allows Xen and Dom0 to boot on a Cortex-A15 based Versatile Express simulator. See the following announce email for more informations about what we are trying to achieve, as well as the original git history: See

Hello everyone, this is the very first version of the patch series that introduces ARMv7 with virtualization extensions support in Xen. The series allows Xen and Dom0 to boot on a Cortex-A15 based Versatile Express simulator. See the following announce email for more informations about what we are trying to achieve, as well as the original git history: See