Commit f326e846 authored by Pincheng Wang's avatar Pincheng Wang Committed by Anup Patel
Browse files

riscv: KVM: allow Zilsd and Zclsd extensions for Guest/VM 



Extend the KVM ISA extension ONE_REG interface to allow KVM user space
to detect and enable Zilsd and Zclsd extensions for Guest/VM.

Signed-off-by: default avatarPincheng Wang <pincheng.plct@isrc.iscas.ac.cn>
Reviewed-by: default avatarNutty Liu <nutty.liu@hotmail.com>
Reviewed-by: default avatarAnup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20250826162939.1494021-5-pincheng.plct@isrc.iscas.ac.cn


Signed-off-by: default avatarAnup Patel <anup@brainfault.org>
parent 003b9dae

arch/riscv/include/uapi/asm/kvm.h

+2 −0
Original line number Diff line number Diff line
@@ -192,6 +192,8 @@ enum KVM_RISCV_ISA_EXT_ID { 
	KVM_RISCV_ISA_EXT_ZFBFMIN,

	KVM_RISCV_ISA_EXT_ZVFBFMIN,

	KVM_RISCV_ISA_EXT_ZVFBFWMA,

	KVM_RISCV_ISA_EXT_ZCLSD,

	KVM_RISCV_ISA_EXT_ZILSD,

	KVM_RISCV_ISA_EXT_MAX,

};

arch/riscv/kvm/vcpu_onereg.c

+2 −0
Original line number Diff line number Diff line
@@ -63,6 +63,7 @@ static const unsigned long kvm_isa_ext_arr[] = { 
	KVM_ISA_EXT_ARR(ZCB),

	KVM_ISA_EXT_ARR(ZCD),

	KVM_ISA_EXT_ARR(ZCF),

	KVM_ISA_EXT_ARR(ZCLSD),

	KVM_ISA_EXT_ARR(ZCMOP),

	KVM_ISA_EXT_ARR(ZFA),

	KVM_ISA_EXT_ARR(ZFBFMIN),
@@ -79,6 +80,7 @@ static const unsigned long kvm_isa_ext_arr[] = { 
	KVM_ISA_EXT_ARR(ZIHINTNTL),

	KVM_ISA_EXT_ARR(ZIHINTPAUSE),

	KVM_ISA_EXT_ARR(ZIHPM),

	KVM_ISA_EXT_ARR(ZILSD),

	KVM_ISA_EXT_ARR(ZIMOP),

	KVM_ISA_EXT_ARR(ZKND),

	KVM_ISA_EXT_ARR(ZKNE),