This series adds support for KVM AIA in RISC-V architecture.

In order to test these patches, we require Linux with KVM AIA support which can
be found in the qemu_kvm_aia branch at https://github.com/yong-xuan/linux.git
This kernel branch is based on the riscv_aia_v1 branch available at
https://github.com/avpatel/linux.git, and it also includes two additional
patches that fix a KVM AIA bug and reply to the query of KVM_CAP_IRQCHIP.

---
v2:
- rebase to riscv-to-apply.next
- update the linux header by the scripts/update-linux-headers.sh


Yong-Xuan Wang (6):
  update-linux-headers: sync-up header with Linux for KVM AIA support
  target/riscv: support the AIA device emulateion with KVM enabled
  target/riscv: check the in-kernel irqchip support
  target/riscv: Create an KVM AIA irqchip
  target/riscv: update APLIC and IMSIC to support KVM AIA
  target/riscv: select KVM AIA in riscv virt machine

 hw/intc/riscv_aplic.c         |  19 +++-
 hw/intc/riscv_imsic.c         |  16 ++-
 hw/riscv/virt.c               | 207 +++++++++++++++++++---------------
 linux-headers/asm-riscv/kvm.h | 105 ++++++++++++++++-
 linux-headers/linux/kvm.h     |   2 +
 target/riscv/kvm.c            |  96 +++++++++++++++-
 target/riscv/kvm_riscv.h      |   3 +
 7 files changed, 343 insertions(+), 105 deletions(-)

-- 
2.17.1