This is a note to let you know that I've just added the patch titled RISC-V: KVM: Remove 's' & 'u' as valid ISA extension to the 5.17-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: risc-v-kvm-remove-s-u-as-valid-isa-extension.patch and it can be found in the queue-5.17 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 09561210290bf8a22d379c446c966f4a036ecea6 Author: Atish Patra <atishp@xxxxxxxxxxxx> Date: Tue Apr 19 18:32:57 2022 -0700 RISC-V: KVM: Remove 's' & 'u' as valid ISA extension [ Upstream commit 3ab75a793e4939519d288ef1994db73b8e2d1d86 ] 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. Fixes: a33c72faf2d7 ("RISC-V: KVM: Implement VCPU create, init and destroy functions") Signed-off-by: Atish Patra <atishp@xxxxxxxxxxxx> Signed-off-by: Anup Patel <anup@xxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c index 6785aef4cbd4..2e25a7b83a1b 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) {