[PATCH v2 0/2] RISC-V: KVM: Validate AIA MMIO ranges against GPA width

[Pengpeng Hou <hppiscas@163.com>]

This revision keeps the existing mandatory-address checks and narrows
the initialization revalidation to APLIC. An IMSIC address is only set
after a vCPU exists, which already freezes the selected GPA width.
APLIC can be configured earlier, so its range is rechecked at init.

Patch 2 keeps the previously reviewed GPA-width freeze unchanged.

Changes since v1:
https://lore.kernel.org/r/cover.1786512671.git.pengpeng@iscas.ac.cn/
- Preserve the required-address checks and existing cleanup path.
- Remove the all-vCPU range-validation pass.
- Explain why only APLIC needs a range recheck before initialization.
- Retain Anup's Reviewed-by for unchanged patch 2.

The issues were found by our static-analysis tool. AI assistance was
used to revise the patches and descriptions following the review.


Pengpeng Hou (2):
  RISC-V: KVM: Validate AIA MMIO address ranges
  RISC-V: KVM: Disallow GPA-width changes after AIA init

 arch/riscv/kvm/aia_device.c | 42 +++++++++++++++++++++++++++++++++----
 arch/riscv/kvm/vm.c         |  3 ++-
 2 files changed, 40 insertions(+), 5 deletions(-)


base-commit: 518e5b794c06c0f0eb40df3e202274a66202c137