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[Qemu-devel] [PATCH v5 0/4] Add HAX support
From: |
Vincent Palatin |
Subject: |
[Qemu-devel] [PATCH v5 0/4] Add HAX support |
Date: |
Mon, 19 Dec 2016 17:24:41 +0100 |
I took a stab at trying to rebase/upstream the support for Intel HAXM.
(Hardware Accelerated Execution Manager).
Intel HAX is kernel-based hardware acceleration module for Windows and MacOSX.
I have based my work on the last version of the source code I found:
the emu-2.2-release branch in the external/qemu-android repository as used by
the Android emulator.
In patch 2/4, I have forward-ported the core HAX code from there.
It has been modified to build and run along with the current code base.
It has been simplifying by removing non-UG hardware support / Darwin support /
Android-specific leftovers.
Intel nicely fixed the 2 remaining issues on the kernel side:
- the spurious request to emulate MMIO access in un-paged mode is no longer
happening (as seen in iPXE).
- the kernel API now provides a way to remove a memory mapping, so we can
do a proper MemoryListener implementation.
They will publish soon a new version 6.1.0 of the HAX kernel module including
the fixes once their QA cycle is completed.
Thanks Yu Ning for making this happen.
In patch 3/4, I have put the plumbing into the QEMU code base, I did some clean
up there and it is reasonably intrusive: i.e.
Makefile.target | 1 +
configure | 18 ++++++++++
cpus.c | 87 ++++++++++++++++++++++++++++++++++++++++++++++-
exec.c | 16 +++++++++
hw/intc/apic_common.c | 3 +-
include/qom/cpu.h | 5 +++
include/sysemu/hw_accel.h | 9 +++++
qemu-options.hx | 11 ++++++
target-i386/Makefile.objs | 4 +++
vl.c | 15 ++++++--
10 files changed, 164 insertions(+), 5 deletions(-)
The patch 1/4 just extracts from KVM specific header the cpu_synchronize_
functions that HAX is also using.
The patch 4/4 is the Darwin support. This part is only lightly tested for now,
so it can be considered as 'experimental'.
I have tested the end result on a Windows 10 Pro machine (with UG support)
with the Intel HAXM module dev version and a large ChromiumOS x86_64 image to
exercise various code paths. It looks stable.
I also did a quick regression testing of the integration by running a Linux
build with KVM enabled.
Changes from v4 to v5:
- update HAX fastmmio API with the new MMIO to MMIO transfer.
Changes from v3 to v4:
- add RAM unmapping in the MemoryListener thanks to new API in HAX module 6.1.0
and re-wrote the memory mappings management to deal with this.
- marked no longer used MMIO emulation as unsupported.
- clean-up a few left-overs from removed code.
- re-add an experimental version of the Darwin support.
Changes from v2 to v3:
- fix saving/restoring FPU registers as suggested by Paolo.
- fix Windows build on all targets as contributed by Stefan Weil.
- clean-up IO / MMIO emulation.
- more clean-up of emulation leftovers.
Changes from v1 to v2:
- fix all style issues in the original code to get it through checkpatch.pl.
- remove Darwin support, it was barely tested and not fully functional.
- remove the support for CPU without UG mode.
- fix most review comments
Vincent Palatin (4):
kvm: move cpu synchronization code
target-i386: Add Intel HAX files
Plumb the HAXM-based hardware acceleration support
hax: add Darwin support
Makefile.target | 1 +
configure | 18 +
cpus.c | 93 +++-
exec.c | 16 +
gdbstub.c | 1 +
hax-stub.c | 39 ++
hw/i386/kvm/apic.c | 1 +
hw/i386/kvmvapic.c | 1 +
hw/intc/apic_common.c | 3 +-
hw/misc/vmport.c | 2 +-
hw/ppc/pnv_xscom.c | 2 +-
hw/ppc/ppce500_spin.c | 4 +-
hw/ppc/spapr.c | 2 +-
hw/ppc/spapr_hcall.c | 2 +-
hw/s390x/s390-pci-inst.c | 1 +
include/qom/cpu.h | 5 +
include/sysemu/hax.h | 56 +++
include/sysemu/hw_accel.h | 48 ++
include/sysemu/kvm.h | 23 -
monitor.c | 2 +-
qemu-options.hx | 11 +
qom/cpu.c | 2 +-
target-arm/cpu.c | 2 +-
target-i386/Makefile.objs | 7 +
target-i386/hax-all.c | 1155 +++++++++++++++++++++++++++++++++++++++++++
target-i386/hax-darwin.c | 316 ++++++++++++
target-i386/hax-darwin.h | 63 +++
target-i386/hax-i386.h | 94 ++++
target-i386/hax-interface.h | 361 ++++++++++++++
target-i386/hax-mem.c | 271 ++++++++++
target-i386/hax-windows.c | 479 ++++++++++++++++++
target-i386/hax-windows.h | 89 ++++
target-i386/helper.c | 1 +
target-i386/kvm.c | 1 +
target-ppc/mmu-hash64.c | 2 +-
target-ppc/translate_init.c | 2 +-
target-s390x/gdbstub.c | 1 +
vl.c | 15 +-
38 files changed, 3153 insertions(+), 39 deletions(-)
create mode 100644 hax-stub.c
create mode 100644 include/sysemu/hax.h
create mode 100644 include/sysemu/hw_accel.h
create mode 100644 target-i386/hax-all.c
create mode 100644 target-i386/hax-darwin.c
create mode 100644 target-i386/hax-darwin.h
create mode 100644 target-i386/hax-i386.h
create mode 100644 target-i386/hax-interface.h
create mode 100644 target-i386/hax-mem.c
create mode 100644 target-i386/hax-windows.c
create mode 100644 target-i386/hax-windows.h
--
2.8.0.rc3.226.g39d4020
- [Qemu-devel] [PATCH v5 0/4] Add HAX support,
Vincent Palatin <=