[RFC PATCH v2 4/7] RISC-V: KVM: Remove 's' & 'u' as valid ISA extension

From: Atish Patra
Date: Fri Mar 04 2022 - 15:15:09 EST


There are no ISA extension defined as 's' & 'u' in RISC-V specifications.
The misa register defines 's' & 'u' bit as Supervisor/User privilege mode
enabled. But it should not appear in the ISA extension in the device tree.

Remove those from the allowed ISA extension for kvm.

Signed-off-by: Atish Patra <atishp@xxxxxxxxxxxx>
---
arch/riscv/kvm/vcpu.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c
index 624166004e36..3ae545e7b398 100644
--- a/arch/riscv/kvm/vcpu.c
+++ b/arch/riscv/kvm/vcpu.c
@@ -43,9 +43,7 @@ const struct kvm_stats_header kvm_vcpu_stats_header = {
riscv_isa_extension_mask(d) | \
riscv_isa_extension_mask(f) | \
riscv_isa_extension_mask(i) | \
- riscv_isa_extension_mask(m) | \
- riscv_isa_extension_mask(s) | \
- riscv_isa_extension_mask(u))
+ riscv_isa_extension_mask(m))

static void kvm_riscv_reset_vcpu(struct kvm_vcpu *vcpu)
{
--
2.30.2