From: Christoffer Dall <c.dall@virtualopensystems.com>
To: android-virt@lists.cs.columbia.edu, kvm@vger.kernel.org
Cc: Marc.Zyngier@arm.com, catalin.marinas@arm.com,
tech@virtualopensystems.com, avi@redhat.com,
peter.maydell@linaro.org
Subject: [PATCH v5 00/13] KVM/ARM Implementation
Date: Sun, 11 Dec 2011 05:24:15 -0500 [thread overview]
Message-ID: <20111211102403.21693.6887.stgit@localhost> (raw)
The following series implements KVM support for ARM processors,
specifically on the Cortex A-15 platform.
The patch series applies to commit 0ec4044a029b5ba9ed6dc7c52390c25da717e184
on Catalin Marinas' linux-arm-arch tree.
This is Version 5 of the patch series, but the first two versions
were reviewed outside of the KVM mailing list. Changes can also be
pulled from:
git://github.com/virtualopensystems/linux-kvm-arm.git kvm-a15-v5
The implementation is broken up into a logical set of patches, the first
one containing a skeleton of files, makefile changes, the basic user
space interface and KVM architecture specific stubs. Subsequent patches
implement parts of the system as listed:
1. Skeleton
2. Identity Mapping for Hyp mode
3. Hypervisor initialization
4. Memory virtualization setup (hyp mode mappings and 2nd stage)
5. Inject IRQs and FIQs from userspace
6. World-switch implementation and Hyp exception vectors
7. Emulation framework and CP15 emulation
8. Handle guest user memory aborts
9. Handle guest MMIO aborts
10. Support guest wait-for-interrupt instructions.
11. Initial SMP host support (incomplete!)
12. Fix guest view of MPIDR
13. Initial SMP guest support (incomplete!)
Testing:
Limited testing, but have run GCC inside guest, which compiled a small
hello-world program, which was successfully run. Hardware still
unavailable, so all testing has been done on ARM Fast Models.
For a guide on how to set up a testing environment and try out these
patches, see:
http://www.virtualopensystems.com/media/pdf/kvm-arm-guide.pdf
https://wiki.linaro.org/PeterMaydell/A15OnFastModels
Still on the to-do list:
- Reuse VMIDs
- Fix SMP host support
- Fix SMP guest support
- Support guest Thumb mode for MMIO emulation
- Further testing
- Performance improvements
Changes since v4:
- Addressed reviewer comments from v4
* cleanup debug and trace code
* remove printks
* fixup kvm_arch_vcpu_ioctl_run
* add trace details to mmio emulation
- Fix from Marc Zyngier: Move kvm_guest_enter/exit into non-preemptible
section (squashed into world-switch patch)
- Cleanup create_hyp_mappings/remove_hyp_mappings from Marc Zyngier
(squashed into hypervisor initialization patch)
- Removed the remove_hyp_mappings feature. Removing hypervisor mappings
could potentially unmap other important data shared in the same page.
- Removed the arm_ prefix from the arch-specific files.
- Initial SMP host/guest support
Changes since v3:
- v4 actually works, fully boots a guest
- Support compiling as a module
- Use static inlines instead of macros for vcpu_reg and friends
- Optimize kvm_vcpu_reg function
- Use Ftrace for trace capabilities
- Updated documentation and commenting
- Use KVM_IRQ_LINE instead of KVM_INTERRUPT
- Emulates load/store instructions not supported through HSR
syndrome information.
- Frees 2nd stage translation tables on VM teardown
- Handles IRQ/FIQ instructions
- Handles more CP15 accesses
- Support guest WFI calls
- Uses debugfs instead of /proc
- Support compiling in Thumb mode
Changes since v2:
- Performs world-switch code
- Maps guest memory using 2nd stage translation
- Emulates co-processor 15 instructions
- Forwards I/O faults to QEMU.
---
Christoffer Dall (12):
ARM: KVM: Initial skeleton to compile KVM support
ARM: KVM: Hypervisor identity mapping
ARM: KVM: Add hypervisor inititalization
ARM: KVM: Memory virtualization setup
ARM: KVM: Inject IRQs and FIQs from userspace
ARM: KVM: World-switch implementation
ARM: KVM: Emulation framework and CP15 emulation
ARM: KVM: Handle guest faults in KVM
ARM: KVM: Handle I/O aborts
ARM: KVM: Guest wait-for-interrupts (WFI) support
ARM: KVM: Support SMP hosts
ARM: KVM: Support SMP guests
Marc Zyngier (1):
ARM: KVM: Fix guest view of MPIDR
Documentation/virtual/kvm/api.txt | 10
arch/arm/Kconfig | 2
arch/arm/Makefile | 1
arch/arm/include/asm/kvm.h | 75 +++
arch/arm/include/asm/kvm_arm.h | 130 +++++
arch/arm/include/asm/kvm_asm.h | 51 ++
arch/arm/include/asm/kvm_emulate.h | 100 ++++
arch/arm/include/asm/kvm_host.h | 112 ++++
arch/arm/include/asm/kvm_mmu.h | 42 ++
arch/arm/include/asm/kvm_para.h | 9
arch/arm/include/asm/pgtable-3level-hwdef.h | 5
arch/arm/include/asm/pgtable-3level.h | 12
arch/arm/include/asm/pgtable.h | 11
arch/arm/include/asm/unified.h | 12
arch/arm/kernel/armksyms.c | 7
arch/arm/kernel/asm-offsets.c | 34 +
arch/arm/kernel/entry-armv.S | 1
arch/arm/kvm/Kconfig | 44 ++
arch/arm/kvm/Makefile | 17 +
arch/arm/kvm/arm.c | 716 +++++++++++++++++++++++++++
arch/arm/kvm/debug.h | 48 ++
arch/arm/kvm/emulate.c | 610 +++++++++++++++++++++++
arch/arm/kvm/exports.c | 26 +
arch/arm/kvm/guest.c | 150 ++++++
arch/arm/kvm/init.S | 115 ++++
arch/arm/kvm/interrupts.S | 496 +++++++++++++++++++
arch/arm/kvm/mmu.c | 512 +++++++++++++++++++
arch/arm/kvm/trace.h | 138 +++++
arch/arm/mach-vexpress/Kconfig | 1
arch/arm/mm/Kconfig | 8
arch/arm/mm/idmap.c | 54 ++
arch/arm/mm/mmu.c | 3
include/linux/kvm.h | 1
mm/memory.c | 1
34 files changed, 3552 insertions(+), 2 deletions(-)
create mode 100644 arch/arm/include/asm/kvm.h
create mode 100644 arch/arm/include/asm/kvm_arm.h
create mode 100644 arch/arm/include/asm/kvm_asm.h
create mode 100644 arch/arm/include/asm/kvm_emulate.h
create mode 100644 arch/arm/include/asm/kvm_host.h
create mode 100644 arch/arm/include/asm/kvm_mmu.h
create mode 100644 arch/arm/include/asm/kvm_para.h
create mode 100644 arch/arm/kvm/Kconfig
create mode 100644 arch/arm/kvm/Makefile
create mode 100644 arch/arm/kvm/arm.c
create mode 100644 arch/arm/kvm/debug.h
create mode 100644 arch/arm/kvm/emulate.c
create mode 100644 arch/arm/kvm/exports.c
create mode 100644 arch/arm/kvm/guest.c
create mode 100644 arch/arm/kvm/init.S
create mode 100644 arch/arm/kvm/interrupts.S
create mode 100644 arch/arm/kvm/mmu.c
create mode 100644 arch/arm/kvm/trace.h
--
next reply other threads:[~2011-12-11 10:24 UTC|newest]
Thread overview: 105+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-11 10:24 Christoffer Dall [this message]
2011-12-11 10:24 ` [PATCH v5 01/13] ARM: KVM: Initial skeleton to compile KVM support Christoffer Dall
2011-12-11 10:24 ` [PATCH v5 02/13] ARM: KVM: Hypervisor identity mapping Christoffer Dall
2011-12-11 10:24 ` [PATCH v5 03/13] ARM: KVM: Add hypervisor inititalization Christoffer Dall
2011-12-11 10:24 ` [PATCH v5 04/13] ARM: KVM: Memory virtualization setup Christoffer Dall
2011-12-12 14:40 ` Avi Kivity
2011-12-12 15:09 ` [Android-virt] " Christoffer Dall
2011-12-12 15:15 ` Avi Kivity
2011-12-12 15:25 ` Peter Maydell
2011-12-12 15:49 ` Avi Kivity
2011-12-12 17:40 ` Christoffer Dall
2011-12-13 17:10 ` Antonios Motakis
2011-12-13 17:13 ` Christoffer Dall
2011-12-11 10:24 ` [PATCH v5 05/13] ARM: KVM: Inject IRQs and FIQs from userspace Christoffer Dall
2011-12-11 15:18 ` Jan Kiszka
2011-12-11 16:03 ` Peter Maydell
2011-12-11 19:30 ` Christoffer Dall
2011-12-11 19:48 ` Peter Maydell
2011-12-11 20:07 ` [Android-virt] " Christoffer Dall
2011-12-11 20:25 ` Peter Maydell
2011-12-11 21:36 ` Christoffer Dall
2011-12-11 22:12 ` Peter Maydell
2011-12-11 22:35 ` Peter Maydell
2011-12-11 22:53 ` Christoffer Dall
2011-12-11 23:01 ` Jan Kiszka
2011-12-12 16:31 ` Peter Maydell
2011-12-12 17:40 ` Avi Kivity
2011-12-29 1:29 ` Christoffer Dall
2012-02-09 1:15 ` Peter Maydell
2011-12-12 11:06 ` Marc Zyngier
2011-12-12 12:54 ` Christoffer Dall
2011-12-12 6:35 ` Alexander Graf
2011-12-11 19:16 ` Christoffer Dall
2011-12-12 13:28 ` Avi Kivity
2011-12-12 14:38 ` [Android-virt] " Christoffer Dall
2011-12-12 14:50 ` Avi Kivity
2011-12-12 15:11 ` Christoffer Dall
2011-12-12 15:16 ` Avi Kivity
2011-12-11 10:24 ` [PATCH v5 06/13] ARM: KVM: World-switch implementation Christoffer Dall
2011-12-11 10:25 ` [PATCH v5 07/13] ARM: KVM: Emulation framework and CP15 emulation Christoffer Dall
2011-12-12 13:44 ` Avi Kivity
2011-12-12 16:17 ` Christoffer Dall
2011-12-11 10:25 ` [PATCH v5 08/13] ARM: KVM: Handle guest faults in KVM Christoffer Dall
2011-12-12 15:05 ` Avi Kivity
2011-12-12 19:53 ` Christoffer Dall
2011-12-13 9:45 ` Avi Kivity
2011-12-13 13:10 ` [Android-virt] " Christoffer Dall
2011-12-13 13:17 ` Marc Zyngier
2011-12-13 13:23 ` Avi Kivity
2011-12-13 13:44 ` Christoffer Dall
2011-12-13 14:27 ` Avi Kivity
2011-12-11 10:25 ` [PATCH v5 09/13] ARM: KVM: Handle I/O aborts Christoffer Dall
2011-12-12 13:54 ` Avi Kivity
2011-12-12 14:56 ` [Android-virt] " Christoffer Dall
2011-12-11 10:25 ` [PATCH v5 10/13] ARM: KVM: Guest wait-for-interrupts (WFI) support Christoffer Dall
2011-12-12 14:12 ` Avi Kivity
2011-12-12 16:20 ` Christoffer Dall
2011-12-12 17:44 ` Avi Kivity
2011-12-12 19:21 ` [Android-virt] " Christoffer Dall
2011-12-13 9:41 ` Avi Kivity
2011-12-11 10:25 ` [PATCH v5 11/13] ARM: KVM: Support SMP hosts Christoffer Dall
2011-12-12 14:30 ` Avi Kivity
2011-12-12 17:37 ` Christoffer Dall
2011-12-12 17:56 ` Avi Kivity
2011-12-12 19:38 ` [Android-virt] " Christoffer Dall
[not found] ` <CAEDV+gJ=zeDpfp0kS2uBvmgRMyCpsV1LitjKR66R4W9Y3VGgWw@mail.gmail.com>
[not found] ` <4EE71CF1.5080705@redhat.com>
2011-12-13 13:36 ` Christoffer Dall
2011-12-13 14:17 ` Avi Kivity
2011-12-13 14:36 ` Christoffer Dall
2011-12-13 14:17 ` Marc Zyngier
2011-12-19 6:15 ` Antonios Motakis
2011-12-19 14:57 ` [Android-virt] " Christoffer Dall
2011-12-19 15:19 ` Marc Zyngier
2011-12-19 15:30 ` Antonios Motakis
2011-12-19 15:37 ` Marc Zyngier
2011-12-19 15:40 ` Christoffer Dall
2011-12-19 15:42 ` Antonios Motakis
2011-12-19 15:45 ` Marc Zyngier
[not found] ` <CAEDV+gL929Hpa=PncVWeHRNAa5fBuorNNYFC=iix=PO+5aO2cg@mail.gmail.com>
2011-12-19 17:19 ` Peter Maydell
2011-12-19 17:24 ` Christoffer Dall
2011-12-19 17:36 ` Peter Maydell
2011-12-19 17:40 ` Christoffer Dall
2011-12-11 10:25 ` [PATCH v5 12/13] ARM: KVM: Fix guest view of MPIDR Christoffer Dall
2011-12-12 14:32 ` Avi Kivity
2011-12-12 17:39 ` Christoffer Dall
2011-12-12 17:44 ` Marc Zyngier
2011-12-12 19:43 ` Christoffer Dall
2011-12-13 9:46 ` Avi Kivity
2011-12-13 13:38 ` Christoffer Dall
2011-12-11 10:25 ` [PATCH v5 13/13] ARM: KVM: Support SMP guests Christoffer Dall
2011-12-11 11:32 ` [PATCH v5 00/13] KVM/ARM Implementation Peter Maydell
2011-12-11 19:23 ` Christoffer Dall
2011-12-11 19:27 ` Peter Maydell
2012-01-11 16:48 ` Peter Maydell
2012-01-12 3:29 ` Christoffer Dall
2012-01-12 8:19 ` Peter Maydell
2012-01-12 16:15 ` [Android-virt] " Christoffer Dall
2012-01-20 2:59 ` Christoffer Dall
2012-01-30 22:46 ` Peter Maydell
2012-01-30 23:02 ` Alexander Graf
2012-01-31 14:39 ` Antonios Motakis
2012-02-01 12:11 ` Marc Zyngier
2012-02-01 12:20 ` Peter Maydell
2012-02-01 13:40 ` Marc Zyngier
2012-02-01 13:57 ` Peter Maydell
2012-02-01 13:59 ` Christoffer Dall
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