NUMA: move numa related code to new file numa.c

Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
NUMA: check if the total numa memory size is equal to ram_size

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 talb, 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>
NUMA: Add numa_info structure to contain numa nodes info

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>
NUMA: convert -numa option to use OptsVisitor

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>
NUMA: expand MAX_NODES from 64 to 128

libnuma choosed 128 for MAX_NODES, so we follow libnuma here.

Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
man: improve -numa doc

The -numa option documentation in qemu's manpage lacks the command-line
options and some information regarding how it relates to options -m and
-smp. This commit fills in the missing text.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
qemu-option: introduce qemu_find_opts_singleton

Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
vl: convert -m to QemuOpts

Adds option to -m
 "mem" - startup memory amount

For compatibility with legacy CLI if suffix-less number is passed,
it assumes amount in Mb.

Otherwise user is free to use suffixed number using suffixes b,k/K,M,G

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
vl: redo -object parsing

Follow the lines of the HMP implementation, using OptsVisitor
to parse the options.  This gives access to OptsVisitor's
rich parsing of integer lists.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
qmp: allow object-add completion handler to get canonical path

Add object to /objects before calling user_creatable_complete()
handler, so that object might be able to call
object_get_canonical_path() in its completion handler.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
qmp: improve error reporting for -object and object-add

Use QERR_INVALID_PARAMETER_VALUE for consistency, and avoid an assertion
failure if the class name is incorrect.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
pc: pass QEMUMachineInitArgs to pc_memory_init

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
numa: introduce memory_region_allocate_system_memory

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
add memdev backend infrastructure

Provides framework for splitting host RAM allocation/
policies into a separate backend that could be used
by devices.

Initially only legacy RAM backend is provided, which
uses memory_region_init_ram() allocator and compatible
with every CLI option that affects memory_region_init_ram().

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
numa: add -numa node,memdev= option

This option provides the infrastructure for binding guest NUMA nodes
to host NUMA nodes.  For example:

 -object memory-ram,size=1024M,policy=membind,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>
memory: reorganize file-based allocation

Split the internal interface in exec.c to a separate function, and
push the check on mem_path up to memory_region_init_ram.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
memory: move mem_path handling to memory_region_allocate_system_memory

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>
memory: add error propagation to file-based RAM allocation

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>
memory: move preallocation code out of exec.c

So that backends can use it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
memory: move RAM_PREALLOC_MASK to exec.c, rename

Prepare for adding more flags.  The "_MASK" suffix is unique, kill it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>