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* numa: show hex number in error message for consistency and prefix them with 0xHu Tao2014-08-141-2/+2
| | | | | | | | | | | | | | | The error messages before and after patch are: before: qemu-system-x86_64: total memory for NUMA nodes (134217728) should equal RAM size (20000000) after: qemu-system-x86_64: total memory for NUMA nodes (0x8000000) should equal RAM size (0x20000000) Cc: qemu-stable@nongnu.org Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* numa: check for busy memory backendHu Tao2014-07-061-0/+8
| | | | | | | | | | | | | | | | | | | Specifying the same memory backend twice leads to an assert: ./x86_64-softmmu/qemu-system-x86_64 -m 512M -enable-kvm -object memory-backend-ram,size=256M,id=ram0 -numa node,nodeid=0,memdev=ram0 -numa node,nodeid=1,memdev=ram0 qemu-system-x86_64: /scm/qemu/memory.c:1506: memory_region_add_subregion_common: Assertion `!subregion->container' failed. Aborted (core dumped) Detect and exit with an error message instead. Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* numa: Reject configuration if not all node IDs are presentEduardo Habkost2014-06-291-1/+16
| | | | | | | | | | We don't support sparse NUMA node IDs yet, so this changes QEMU to reject configs where not all nodes are present. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
* numa: Reject duplicate node IDsEduardo Habkost2014-06-291-0/+5
| | | | | | | | | | | | | | The same nodeid shouldn't appear multiple times in the command-line. In addition to detecting command-line mistakes, this will fix a bug where nb_numa_nodes may become larger than MAX_NODES (and cause out-of-bounds access on the numa_info array). Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Hu Tao <hutao@cn.fujitsu.com> Reviewed-by: Eric Blake <eblake@redhat.com>
* numa: Keep track of NUMA nodes present on the command-lineEduardo Habkost2014-06-291-0/+2
| | | | | | | | | | | | | | | | | Based on "enable sparse node numbering" patch from Nishanth Aravamudan, but without the code to actually support sparse node IDs. This just adds the code to keep track of present/non-present nodes on the command-line, without changing any behavior. Signed-off-by: Nishanth Aravamudan <nacc@linux.vnet.ibm.com> [Rename max_numa_node to max_numa_nodeid -Eduardo] [Initialize max_numa_nodeid to 0 -Eduardo] [Use MAX() macro when setting max_numa_nodeid -Eduardo] Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Hu Tao <hutao@cn.fujitsu.com> Reviewed-by: Eric Blake <eblake@redhat.com>
* numa: fix commentMichael S. Tsirkin2014-06-291-1/+1
| | | | | | | s/if given for/is given for/; Reported-by: Hu Tao <hutao@cn.fujitsu.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* numa: fix commentMichael S. Tsirkin2014-06-291-1/+1
| | | | | | | | Fix up English in comments: s/the each/each/ Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
* numa: handle mmaped memory allocation failure correctlyIgor Mammedov2014-06-191-1/+1
| | | | | | | | | | | when memory_region_init_ram_from_file() fails memory_region_size() will still return size that was provided at region init time. Instead use errp to properly detect error condition. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* qmp: add query-memdevHu Tao2014-06-191-0/+84
| | | | | | | | | Add qmp command query-memdev to query for information of memory devices Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* hostmem: add property to map memory with MAP_SHAREDPaolo Bonzini2014-06-191-1/+1
| | | | | | | | | | A new "share" property can be used with the "memory-file" backend to map memory with MAP_SHARED instead of MAP_PRIVATE. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* memory: add error propagation to file-based RAM allocationPaolo Bonzini2014-06-191-1/+12
| | | | | | | | | | | | | Right now, -mem-path will fall back to RAM-based allocation in some cases. This should never happen with "-object memory-file", prepare the code by adding correct error propagation. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> MST: drop \n at end of error messages
* memory: move mem_path handling to memory_region_allocate_system_memoryPaolo Bonzini2014-06-191-1/+10
| | | | | | | | | | | | | | | Like the previous patch did in exec.c, split memory_region_init_ram and memory_region_init_ram_from_file, and push mem_path one step further up. Other RAM regions than system memory will now be backed by regular RAM. Also, boards that do not use memory_region_allocate_system_memory will not support -mem-path anymore. This can be changed before the patches are merged by migrating boards to use the function. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* numa: add -numa node,memdev= optionPaolo Bonzini2014-06-191-2/+63
| | | | | | | | | | | | | | | | | | | This option provides the infrastructure for binding guest NUMA nodes to host NUMA nodes. For example: -object memory-ram,size=1024M,policy=bind,host-nodes=0,id=ram-node0 \ -numa node,nodeid=0,cpus=0,memdev=ram-node0 \ -object memory-ram,size=1024M,policy=interleave,host-nodes=1-3,id=ram-node1 \ -numa node,nodeid=1,cpus=1,memdev=ram-node1 The option replaces "-numa node,mem=". Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> MST: conflict resolution
* numa: introduce memory_region_allocate_system_memoryPaolo Bonzini2014-06-191-0/+9
| | | | | | | | | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> MST: resolve conflicts
* NUMA: convert -numa option to use OptsVisitorWanlong Gao2014-06-191-75/+70Star
| | | | | | | | | | | Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Tested-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* NUMA: Add numa_info structure to contain numa nodes infoWanlong Gao2014-06-191-11/+12
| | | | | | | | | | | | | | | | Add the numa_info structure to contain the numa nodes memory, VCPUs information and the future added numa nodes host memory policies. Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> [Fix hw/ppc/spapr.c - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* NUMA: check if the total numa memory size is equal to ram_sizeWanlong Gao2014-06-191-0/+14
| | | | | | | | | | | | | | | | | If the total number of the assigned numa nodes memory is not equal to the assigned ram size, it will write the wrong data to ACPI table, then the guest will ignore the wrong ACPI table and recognize all memory to one node. It's buggy, we should check it to ensure that we write the right data to ACPI table. Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> MST: error message reworded
* NUMA: move numa related code to new file numa.cWanlong Gao2014-06-191-0/+185
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> MST: comment tweaks
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