| Message ID | 20230918180646.1398384-3-apatel@ventanamicro.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | KVM RISC-V fixes for ONE_REG interface | expand |
On Mon, Sep 18, 2023 at 11:07 AM Anup Patel <apatel@ventanamicro.com> wrote: > > The riscv_vcpu_get_isa_ext_single() should fail with -ENOENT error > when corresponding ISA extension is not available on the host. > > Fixes: e98b1085be79 ("RISC-V: KVM: Factor-out ONE_REG related code to its own source file") > Signed-off-by: Anup Patel <apatel@ventanamicro.com> > --- > arch/riscv/kvm/vcpu_onereg.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c > index e7e833ced91b..b7e0e03c69b1 100644 > --- a/arch/riscv/kvm/vcpu_onereg.c > +++ b/arch/riscv/kvm/vcpu_onereg.c > @@ -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 */ > > -- > 2.34.1 > Reviewed-by: Atish Patra <atishp@rivosinc.com>
On Mon, Sep 18, 2023 at 11:36:44PM +0530, Anup Patel wrote: > The riscv_vcpu_get_isa_ext_single() should fail with -ENOENT error > when corresponding ISA extension is not available on the host. > > Fixes: e98b1085be79 ("RISC-V: KVM: Factor-out ONE_REG related code to its own source file") > Signed-off-by: Anup Patel <apatel@ventanamicro.com> > --- > arch/riscv/kvm/vcpu_onereg.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c > index e7e833ced91b..b7e0e03c69b1 100644 > --- a/arch/riscv/kvm/vcpu_onereg.c > +++ b/arch/riscv/kvm/vcpu_onereg.c > @@ -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 */ > > -- > 2.34.1 > Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c index e7e833ced91b..b7e0e03c69b1 100644 --- a/arch/riscv/kvm/vcpu_onereg.c +++ b/arch/riscv/kvm/vcpu_onereg.c @@ -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 */
The riscv_vcpu_get_isa_ext_single() should fail with -ENOENT error when corresponding ISA extension is not available on the host. Fixes: e98b1085be79 ("RISC-V: KVM: Factor-out ONE_REG related code to its own source file") Signed-off-by: Anup Patel <apatel@ventanamicro.com> --- arch/riscv/kvm/vcpu_onereg.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)