[PATCH v4 0/6] Add RISC-V KVM AIA Support

[Yong-Xuan Wang <yongxuan.wang@sifive.com>]

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 riscv_kvm_aia_hwaccel_v1 branch at
https://github.com/avpatel/linux.git

---
v4:
- update the linux header by the scripts/update-linux-headers.sh in PATCH1
- remove the checking for "aplic_m" before creating S-mode APLIC device in PATCH2
- add more setting when we initialize the KVM AIA chip in PATCH4
- fix msi message delivery and the APLIC devices emulation in PATCH5
- fix the AIA devices mapping with NUMA enabled in PATCH6
- add "kvm-aia" parameter to sepecify the KVM AIA mode in PATCH6

v3:
- fix typo
- tag the linux-header patch as placeholder

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
    placeholder
  target/riscv: support the AIA device emulation 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         |  58 +++++--
 hw/intc/riscv_imsic.c         |  26 ++-
 hw/riscv/virt.c               | 297 +++++++++++++++++++++-------------
 include/hw/riscv/virt.h       |   1 +
 linux-headers/asm-riscv/kvm.h | 123 +++++++++++++-
 linux-headers/linux/kvm.h     |   2 +
 target/riscv/kvm.c            | 176 +++++++++++++++++++-
 target/riscv/kvm_riscv.h      |   6 +
 8 files changed, 554 insertions(+), 135 deletions(-)

-- 
2.17.1