RISC-V: KVM: Handle software-check exits for VCPU

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The extension Zicfiss/Zicfilp introduces a software-check exception
to the privilege architecture. Redirect this exception to VS mode
when VCPU enable Zicfiss/Zicfilp so the CFI violations in VU/VS could
be reported.

Also, update kvm_riscv_vcpu_trap_redirect() to forward the SPELP
state to the VS mode.

Assisted-by: YuanSheng:claude-4.7-opus
Co-developed-by: Quan Zhou <zhouquan@iscas.ac.cn>
Signed-off-by: Quan Zhou <zhouquan@iscas.ac.cn>
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260713010302.303278-6-inochiama@gmail.com
Signed-off-by: Anup Patel <anup@brainfault.org>

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Inochi Amaoto 2026-07-13 09:02:58 +08:00 • committed by Anup Patel

parent 43a8f19117

commit 864260d71d

2 changed files with 12 additions and 0 deletions

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1

arch/riscv/include/asm/csr.h

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11

arch/riscv/kvm/vcpu_exit.c

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