Commit 12fd6c62 authored by Anup Patel's avatar Anup Patel Committed by Anup Patel
Browse files

RISC-V: KVM: Add separate source for forwarded SBI extensions 



Add a separate source vcpu_sbi_forward.c for SBI extensions
which are entirely forwarded to KVM user-space.

Signed-off-by: default avatarAnup Patel <apatel@ventanamicro.com>
Reviewed-by: default avatarAndrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20251017155925.361560-3-apatel@ventanamicro.com


Signed-off-by: default avatarAnup Patel <anup@brainfault.org>
parent e2f3e2d3

arch/riscv/kvm/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ kvm-y += vcpu_onereg.o 
kvm-$(CONFIG_RISCV_PMU_SBI) += vcpu_pmu.o

kvm-y += vcpu_sbi.o

kvm-y += vcpu_sbi_base.o

kvm-y += vcpu_sbi_forward.o

kvm-y += vcpu_sbi_fwft.o

kvm-y += vcpu_sbi_hsm.o

kvm-$(CONFIG_RISCV_PMU_SBI) += vcpu_sbi_pmu.o

arch/riscv/kvm/vcpu_sbi_base.c

+0 −12
Original line number Diff line number Diff line
@@ -70,15 +70,3 @@ const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_base = { 
	.extid_end = SBI_EXT_BASE,

	.handler = kvm_sbi_ext_base_handler,

};
 


const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_experimental = {

	.extid_start = SBI_EXT_EXPERIMENTAL_START,

	.extid_end = SBI_EXT_EXPERIMENTAL_END,

	.handler = kvm_riscv_vcpu_sbi_forward_handler,

};



const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_vendor = {

	.extid_start = SBI_EXT_VENDOR_START,

	.extid_end = SBI_EXT_VENDOR_END,

	.handler = kvm_riscv_vcpu_sbi_forward_handler,

};

arch/riscv/kvm/vcpu_sbi_forward.c

0 → 100644
+27 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/*

 * Copyright (c) 2025 Ventana Micro Systems Inc.

 */



#include <linux/kvm_host.h>

#include <asm/kvm_vcpu_sbi.h>

#include <asm/sbi.h>



const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_experimental = {

	.extid_start = SBI_EXT_EXPERIMENTAL_START,

	.extid_end = SBI_EXT_EXPERIMENTAL_END,

	.handler = kvm_riscv_vcpu_sbi_forward_handler,

};



const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_vendor = {

	.extid_start = SBI_EXT_VENDOR_START,

	.extid_end = SBI_EXT_VENDOR_END,

	.handler = kvm_riscv_vcpu_sbi_forward_handler,

};



const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_dbcn = {

	.extid_start = SBI_EXT_DBCN,

	.extid_end = SBI_EXT_DBCN,

	.default_disabled = true,

	.handler = kvm_riscv_vcpu_sbi_forward_handler,

};

arch/riscv/kvm/vcpu_sbi_replace.c

+0 −7
Original line number Diff line number Diff line
@@ -185,10 +185,3 @@ const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_srst = { 
	.extid_end = SBI_EXT_SRST,

	.handler = kvm_sbi_ext_srst_handler,

};
 


const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_dbcn = {

	.extid_start = SBI_EXT_DBCN,

	.extid_end = SBI_EXT_DBCN,

	.default_disabled = true,

	.handler = kvm_riscv_vcpu_sbi_forward_handler,

};