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[Qemu-devel] [PATCH v3 00/22] Steps towards per CPU address-spaces
From: |
edgar . iglesias |
Subject: |
[Qemu-devel] [PATCH v3 00/22] Steps towards per CPU address-spaces |
Date: |
Mon, 13 Jan 2014 17:39:40 +1000 |
From: "Edgar E. Iglesias" <address@hidden>
Hi,
I'm looking at modeling systems where multiple CPUs co-exist with
different views of their attached buses/devs.
With this series I'm trying to take some steps towards having
an address-space per CPU. It's not complete but good enough for
making it possible to model (to some extent) CPU local memories
for MicroBlaze systems in emulation mode (TCG). I'm updating the
petalogix-ml605 here and will follow-up later with the petalogix-s3adsp.
The per-cpu address space is added into the CPUState. I tried to
measure performance diff with having it in the CPUState->env.
For "normal" and even for IO heavy workloads on linux kernels,
the diff is not measurable. I also tested with a tight guest loop
that continuously does I/O accesses and there I can see a 2.5% drop in perf.
I dont think the runtime type check involved when casting from env to CS
will be much of a problem.
I've reordered the series and moved the AS props to the end, hoping
we can get through the bulk of the series with less controversy and
get it commited soon.
I've kept the interface with properties to set AddressSpace pointers
which I think is the more flexible approach but we can explore other
ideas if there are.
There is lots of future work needed, for example to transform more of
the cpu_* bus accessing functions. To add more usage of AddressSpace
properties to pass on address spaces to DMA models. Qtest mechanisms
to target specific address spaces, etc...
Cheers,
Edgar
v2 -> v3:
Move CPU address-space prop into CPUState level.
v1 -> v2:
Add braces in cpu_memory_rw_debug.
Avoid mixing var/code declarations in tcg_commit.
Move per-cpu address space into CPUState.
Reorder patch series to add the AS properties last.
Edgar E. Iglesias (22):
exec: Make tb_invalidate_phys_addr input an AS
exec: Make iotlb_to_region input an AS
exec: Always initialize MemorySection address spaces
exec: Make memory_region_section_get_iotlb use section AS
memory: Add MemoryListener to typedefs.h
cpu: Add per-cpu address space
exec: On AS changes, only flush affected CPU TLBs
exec: Make ldl_*_phys input an AddressSpace
exec: Make ldq/ldub_*_phys input an AddressSpace
exec: Make lduw_*_phys input an AddressSpace
exec: Make stq_*_phys input an AddressSpace
exec: Make stl_*_phys input an AddressSpace
exec: Make stl_phys_notdirty input an AddressSpace
exec: Make stw_*_phys input an AddressSpace
exec: Make stb_phys input an AddressSpace
exec: Make cpu_physical_memory_write_rom input an AS
exec: Make cpu_memory_rw_debug use the CPUs AS
memory: Add address_space_find_by_name()
qdev: Add qdev property type for AddressSpaces
cpu: Add address-space property
petalogix-ml605: Create the CPU with object_new()
petalogix-ml605: Make the LMB visible only to the CPU
cpu-exec.c | 5 +-
cpus.c | 2 +
cputlb.c | 7 +-
exec.c | 183 +++++++++++----------
hw/alpha/dp264.c | 5 +-
hw/alpha/typhoon.c | 2 +-
hw/arm/boot.c | 9 +-
hw/arm/highbank.c | 6 +-
hw/core/loader.c | 3 +-
hw/core/qdev-properties-system.c | 10 ++
hw/core/qdev-properties.c | 54 +++++++
hw/display/sm501.c | 1 +
hw/display/sm501_template.h | 2 +-
hw/dma/pl080.c | 9 +-
hw/dma/sun4m_iommu.c | 3 +-
hw/intc/apic.c | 3 +-
hw/microblaze/petalogix_ml605_mmu.c | 28 +++-
hw/net/vmware_utils.h | 16 +-
hw/pci/msi.c | 2 +-
hw/pci/msix.c | 2 +-
hw/ppc/ppc405_uc.c | 45 +++---
hw/ppc/spapr_hcall.c | 50 +++---
hw/s390x/css.c | 11 +-
hw/s390x/s390-virtio-bus.c | 36 +++--
hw/s390x/s390-virtio.c | 2 +-
hw/s390x/virtio-ccw.c | 40 +++--
hw/scsi/megasas.c | 22 ++-
hw/scsi/vmw_pvscsi.c | 6 +-
hw/sh4/r2d.c | 4 +-
hw/sparc/sun4m.c | 3 +-
hw/timer/hpet.c | 3 +-
hw/virtio/virtio.c | 31 ++--
include/exec/cpu-common.h | 44 ++---
include/exec/exec-all.h | 5 +-
include/exec/memory.h | 11 +-
include/exec/softmmu_template.h | 7 +-
include/hw/ppc/spapr.h | 4 +-
include/hw/qdev-properties.h | 5 +
include/qemu/typedefs.h | 1 +
include/qom/cpu.h | 3 +
memory.c | 12 ++
monitor.c | 2 +-
qom/cpu.c | 7 +
stubs/Makefile.objs | 1 +
stubs/memory.c | 6 +
target-alpha/helper.c | 7 +-
target-alpha/helper.h | 8 +-
target-alpha/mem_helper.c | 36 +++--
target-alpha/translate.c | 8 +-
target-arm/helper.c | 21 ++-
target-i386/arch_memory_mapping.c | 46 +++---
target-i386/helper.c | 48 +++---
target-i386/seg_helper.c | 14 +-
target-i386/smm_helper.c | 300 ++++++++++++++++++-----------------
target-i386/svm_helper.c | 299 ++++++++++++++++++++--------------
target-ppc/excp_helper.c | 4 +-
target-ppc/mmu-hash32.h | 12 +-
target-ppc/mmu-hash64.h | 14 +-
target-s390x/cpu.c | 2 +-
target-s390x/helper.c | 11 +-
target-s390x/mem_helper.c | 9 +-
target-sparc/ldst_helper.c | 72 +++++----
target-sparc/mmu_helper.c | 22 +--
target-unicore32/softmmu.c | 5 +-
target-xtensa/helper.c | 3 +-
target-xtensa/op_helper.c | 3 +-
translate-all.c | 14 +-
67 files changed, 999 insertions(+), 672 deletions(-)
create mode 100644 stubs/memory.c
--
1.7.10.4
- [Qemu-devel] [PATCH v3 00/22] Steps towards per CPU address-spaces,
edgar . iglesias <=
- [Qemu-devel] [PATCH v3 01/22] exec: Make tb_invalidate_phys_addr input an AS, edgar . iglesias, 2014/01/13
- [Qemu-devel] [PATCH v3 02/22] exec: Make iotlb_to_region input an AS, edgar . iglesias, 2014/01/13
- [Qemu-devel] [PATCH v3 03/22] exec: Always initialize MemorySection address spaces, edgar . iglesias, 2014/01/13
- [Qemu-devel] [PATCH v3 04/22] exec: Make memory_region_section_get_iotlb use section AS, edgar . iglesias, 2014/01/13
- [Qemu-devel] [PATCH v3 05/22] memory: Add MemoryListener to typedefs.h, edgar . iglesias, 2014/01/13
- [Qemu-devel] [PATCH v3 06/22] cpu: Add per-cpu address space, edgar . iglesias, 2014/01/13
- [Qemu-devel] [PATCH v3 07/22] exec: On AS changes, only flush affected CPU TLBs, edgar . iglesias, 2014/01/13
- [Qemu-devel] [PATCH v3 08/22] exec: Make ldl_*_phys input an AddressSpace, edgar . iglesias, 2014/01/13
- [Qemu-devel] [PATCH v3 09/22] exec: Make ldq/ldub_*_phys input an AddressSpace, edgar . iglesias, 2014/01/13
- [Qemu-devel] [PATCH v3 10/22] exec: Make lduw_*_phys input an AddressSpace, edgar . iglesias, 2014/01/13