korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-25 05:04:09 +08:00
Code Issues Packages Projects Releases Wiki Activity

RISC-V: KVM: Fix riscv_vcpu_get_isa_ext_single() for missing extensions

Browse Source 
The riscv_vcpu_get_isa_ext_single() should fail with -ENOENT error
when corresponding ISA extension is not available on the host.

Fixes: e98b1085be ("RISC-V: KVM: Factor-out ONE_REG related code to its own source file")
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Anup Patel 2023-09-18 11:58:29 +05:30 committed by Anup Patel
parent ef4d483685
commit 17f71a2a34
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
arch/riscv/kvm/vcpu_onereg.c
View File

@ -460,8 +460,11 @@ static int riscv_vcpu_get_isa_ext_single(struct kvm_vcpu *vcpu,
reg_num >= ARRAY_SIZE(kvm_isa_ext_arr))
return -ENOENT;
*reg_val = 0;
host_isa_ext = kvm_isa_ext_arr[reg_num];
if (!__riscv_isa_extension_available(NULL, host_isa_ext))
return -ENOENT;
*reg_val = 0;
if (__riscv_isa_extension_available(vcpu->arch.isa, host_isa_ext))
*reg_val = 1; /* Mark the given extension as available */