Commit 679e132c authored by Quan Zhou's avatar Quan Zhou Committed by Anup Patel
Browse files

RISC-V: KVM: Allow Zabha extension for Guest/VM 



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

Signed-off-by: default avatarQuan Zhou <zhouquan@iscas.ac.cn>
Reviewed-by: default avatarAndrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/4074feb27819e23bab05b0fd6441a38bf0b6a5e2.1732854096.git.zhouquan@iscas.ac.cn


Signed-off-by: default avatarAnup Patel <anup@brainfault.org>
parent 0f891585

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

+1 −0
Original line number Diff line number Diff line
@@ -180,6 +180,7 @@ enum KVM_RISCV_ISA_EXT_ID { 
	KVM_RISCV_ISA_EXT_SVADE,

	KVM_RISCV_ISA_EXT_SVADU,

	KVM_RISCV_ISA_EXT_SVVPTC,

	KVM_RISCV_ISA_EXT_ZABHA,

	KVM_RISCV_ISA_EXT_MAX,

};

arch/riscv/kvm/vcpu_onereg.c

+2 −0
Original line number Diff line number Diff line
@@ -47,6 +47,7 @@ static const unsigned long kvm_isa_ext_arr[] = { 
	KVM_ISA_EXT_ARR(SVNAPOT),

	KVM_ISA_EXT_ARR(SVPBMT),

	KVM_ISA_EXT_ARR(SVVPTC),

	KVM_ISA_EXT_ARR(ZABHA),

	KVM_ISA_EXT_ARR(ZACAS),

	KVM_ISA_EXT_ARR(ZAWRS),

	KVM_ISA_EXT_ARR(ZBA),
@@ -147,6 +148,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) 
	case KVM_RISCV_ISA_EXT_SVINVAL:

	case KVM_RISCV_ISA_EXT_SVNAPOT:

	case KVM_RISCV_ISA_EXT_SVVPTC:

	case KVM_RISCV_ISA_EXT_ZABHA:

	case KVM_RISCV_ISA_EXT_ZACAS:

	case KVM_RISCV_ISA_EXT_ZAWRS:

	case KVM_RISCV_ISA_EXT_ZBA: