[PATCH 0/12] Get Xen PV shim running in qemu

[David Woodhouse <dwmw2@xxxxxxxxxxxxx>]

I hadn't got round to getting the PV shim running yet; I thought it would
need work on the multiboot loader. Turns out it doesn't. I *did* need to
fix a couple of brown-paper-bag bugs in the per-vCPU upcall vector support,
and implement Xen console support though. Now I can test PV guests:

 $ qemu-system-x86_64 --accel kvm,xen-version=0x40011,kernel-irqchip=split \
   -chardev stdio,mux=on,id=char0 -device xen-console,chardev=char0 \
   -drive file=${GUEST_IMAGE},if=xen -display none -m 1G \
   -kernel ~/git/xen/xen/xen -initrd ~/git/linux/arch/x86/boot/bzImage \
   -append "loglvl=all -- console=hvc0 root=/dev/xvda1"

 blockdev.c                                     |  15 +++-
 hw/block/xen-block.c                           |  26 +++++-
 hw/char/trace-events                           |   8 ++
 hw/char/xen_console.c                          | 522 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--------------------------
 hw/i386/kvm/meson.build                        |   1 +
 hw/i386/kvm/trace-events                       |   2 +
 hw/i386/kvm/xen-stubs.c                        |   5 ++
 hw/i386/kvm/xen_evtchn.c                       |   6 ++
 hw/i386/kvm/xen_gnttab.c                       |  32 ++++++-
 hw/i386/kvm/xen_primary_console.c              | 167 
++++++++++++++++++++++++++++++++++
 hw/i386/kvm/xen_primary_console.h              |  22 +++++
 hw/i386/kvm/xen_xenstore.c                     |  21 ++++-
 hw/xen/xen-backend.c                           |  81 +++++++++++++----
 hw/xen/xen-bus.c                               |  21 ++++-
 hw/xen/xen-legacy-backend.c                    |   1 -
 include/hw/xen/interface/arch-arm.h            |  37 ++++----
 include/hw/xen/interface/arch-x86/cpuid.h      |  31 +++----
 include/hw/xen/interface/arch-x86/xen-x86_32.h |  19 +---
 include/hw/xen/interface/arch-x86/xen-x86_64.h |  19 +---
 include/hw/xen/interface/arch-x86/xen.h        |  26 +-----
 include/hw/xen/interface/event_channel.h       |  19 +---
 include/hw/xen/interface/features.h            |  19 +---
 include/hw/xen/interface/grant_table.h         |  19 +---
 include/hw/xen/interface/hvm/hvm_op.h          |  19 +---
 include/hw/xen/interface/hvm/params.h          |  19 +---
 include/hw/xen/interface/io/blkif.h            |  27 ++----
 include/hw/xen/interface/io/console.h          |  19 +---
 include/hw/xen/interface/io/fbif.h             |  19 +---
 include/hw/xen/interface/io/kbdif.h            |  19 +---
 include/hw/xen/interface/io/netif.h            |  25 ++----
 include/hw/xen/interface/io/protocols.h        |  19 +---
 include/hw/xen/interface/io/ring.h             |  49 +++++-----
 include/hw/xen/interface/io/usbif.h            |  19 +---
 include/hw/xen/interface/io/xenbus.h           |  19 +---
 include/hw/xen/interface/io/xs_wire.h          |  36 ++++----
 include/hw/xen/interface/memory.h              |  30 +++----
 include/hw/xen/interface/physdev.h             |  23 +----
 include/hw/xen/interface/sched.h               |  19 +---
 include/hw/xen/interface/trace.h               |  19 +---
 include/hw/xen/interface/vcpu.h                |  19 +---
 include/hw/xen/interface/version.h             |  19 +---
 include/hw/xen/interface/xen-compat.h          |  19 +---
 include/hw/xen/interface/xen.h                 |  19 +---
 include/hw/xen/xen-backend.h                   |   4 +
 include/hw/xen/xen-bus.h                       |   2 +
 include/sysemu/kvm_xen.h                       |   1 +
 target/i386/kvm/kvm.c                          |   4 +
 target/i386/kvm/xen-emu.c                      |  35 ++++++--
 48 files changed, 941 insertions(+), 680 deletions(-)