This was inspired by https://bugzilla.redhat.com/show_bug.cgi?id=1481593 Previous spin: https://lists.gnu.org/archive/html/qemu-devel/2017-09/msg01559.html
This patchset tries to reduce amount of memory used by FlatViews and tries share as many FVs between address spaces as possible. Changelog: v2: * total rework This is based on sha1 3dabde1128 Peter Maydell "Merge remote-tracking branch 'remotes/dgilbert/tags/pull-hmp-20170914' into staging". Please comment. Thanks. Alexey Kardashevskiy (13): memory: Postpone flatview and dispatch tree building till all devices are added exec: Explicitely export target AS from address_space_translate_internal memory: Open code FlatView rendering memory: Move FlatView allocation to a helper memory: Move AddressSpaceDispatch from AddressSpace to FlatView memory: Remove AddressSpace pointer from AddressSpaceDispatch memory: Switch memory from using AddressSpace to FlatView memory: Cleanup after switching to FlatView memory: Rename mem_begin/mem_commit/mem_add helpers memory: Move root MR from AddressSpace to FlatView memory: Share FlatView's and dispatch trees between address spaces memory: Get rid of address_space_init_shareable memory: Add flat views to HMP "info mtree" include/exec/memory-internal.h | 17 ++- include/exec/memory.h | 79 +++++----- include/hw/arm/armv7m.h | 2 +- cpus.c | 5 +- exec.c | 327 +++++++++++++++++++++++++---------------- hw/arm/armv7m.c | 9 +- hw/intc/openpic_kvm.c | 2 +- hw/pci/pci.c | 3 +- memory.c | 322 +++++++++++++++++++++++++++++----------- monitor.c | 3 +- target/arm/cpu.c | 16 +- target/i386/cpu.c | 5 +- vl.c | 9 ++ hmp-commands-info.hx | 7 +- 14 files changed, 525 insertions(+), 281 deletions(-) -- 2.11.0