From: Anup Patel Date: Wed, 18 Jun 2025 11:35:24 +0000 (+0530) Subject: RISC-V: KVM: Replace KVM_REQ_HFENCE_GVMA_VMID_ALL with KVM_REQ_TLB_FLUSH X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7584eb611e8ef22aca3b801f7fd8529892b70901;p=thirdparty%2Flinux.git RISC-V: KVM: Replace KVM_REQ_HFENCE_GVMA_VMID_ALL with KVM_REQ_TLB_FLUSH The KVM_REQ_HFENCE_GVMA_VMID_ALL is same as KVM_REQ_TLB_FLUSH so to avoid confusion let's replace KVM_REQ_HFENCE_GVMA_VMID_ALL with KVM_REQ_TLB_FLUSH. Also, rename kvm_riscv_hfence_gvma_vmid_all_process() to kvm_riscv_tlb_flush_process(). Signed-off-by: Anup Patel Reviewed-by: Atish Patra Tested-by: Atish Patra Reviewed-by: Nutty Liu Link: https://lore.kernel.org/r/20250618113532.471448-5-apatel@ventanamicro.com Signed-off-by: Anup Patel --- diff --git a/arch/riscv/include/asm/kvm_host.h b/arch/riscv/include/asm/kvm_host.h index 66195d7cbb179..1ca477b2adb2a 100644 --- a/arch/riscv/include/asm/kvm_host.h +++ b/arch/riscv/include/asm/kvm_host.h @@ -36,7 +36,6 @@ #define KVM_REQ_UPDATE_HGATP KVM_ARCH_REQ(2) #define KVM_REQ_FENCE_I \ KVM_ARCH_REQ_FLAGS(3, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) -#define KVM_REQ_HFENCE_GVMA_VMID_ALL KVM_REQ_TLB_FLUSH #define KVM_REQ_HFENCE_VVMA_ALL \ KVM_ARCH_REQ_FLAGS(4, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) #define KVM_REQ_HFENCE \ @@ -330,8 +329,9 @@ void kvm_riscv_local_hfence_vvma_gva(unsigned long vmid, unsigned long order); void kvm_riscv_local_hfence_vvma_all(unsigned long vmid); +void kvm_riscv_tlb_flush_process(struct kvm_vcpu *vcpu); + void kvm_riscv_fence_i_process(struct kvm_vcpu *vcpu); -void kvm_riscv_hfence_gvma_vmid_all_process(struct kvm_vcpu *vcpu); void kvm_riscv_hfence_vvma_all_process(struct kvm_vcpu *vcpu); void kvm_riscv_hfence_process(struct kvm_vcpu *vcpu); diff --git a/arch/riscv/kvm/tlb.c b/arch/riscv/kvm/tlb.c index b3461bfd9756f..da98ca801d319 100644 --- a/arch/riscv/kvm/tlb.c +++ b/arch/riscv/kvm/tlb.c @@ -162,7 +162,7 @@ void kvm_riscv_fence_i_process(struct kvm_vcpu *vcpu) local_flush_icache_all(); } -void kvm_riscv_hfence_gvma_vmid_all_process(struct kvm_vcpu *vcpu) +void kvm_riscv_tlb_flush_process(struct kvm_vcpu *vcpu) { struct kvm_vmid *v = &vcpu->kvm->arch.vmid; unsigned long vmid = READ_ONCE(v->vmid); @@ -342,14 +342,14 @@ void kvm_riscv_hfence_gvma_vmid_gpa(struct kvm *kvm, data.size = gpsz; data.order = order; make_xfence_request(kvm, hbase, hmask, KVM_REQ_HFENCE, - KVM_REQ_HFENCE_GVMA_VMID_ALL, &data); + KVM_REQ_TLB_FLUSH, &data); } void kvm_riscv_hfence_gvma_vmid_all(struct kvm *kvm, unsigned long hbase, unsigned long hmask) { - make_xfence_request(kvm, hbase, hmask, KVM_REQ_HFENCE_GVMA_VMID_ALL, - KVM_REQ_HFENCE_GVMA_VMID_ALL, NULL); + make_xfence_request(kvm, hbase, hmask, KVM_REQ_TLB_FLUSH, + KVM_REQ_TLB_FLUSH, NULL); } void kvm_riscv_hfence_vvma_asid_gva(struct kvm *kvm, diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c index 6ba62c62cd7e6..3ccc6bec3a3ad 100644 --- a/arch/riscv/kvm/vcpu.c +++ b/arch/riscv/kvm/vcpu.c @@ -711,12 +711,8 @@ static void kvm_riscv_check_vcpu_requests(struct kvm_vcpu *vcpu) if (kvm_check_request(KVM_REQ_FENCE_I, vcpu)) kvm_riscv_fence_i_process(vcpu); - /* - * The generic KVM_REQ_TLB_FLUSH is same as - * KVM_REQ_HFENCE_GVMA_VMID_ALL - */ - if (kvm_check_request(KVM_REQ_HFENCE_GVMA_VMID_ALL, vcpu)) - kvm_riscv_hfence_gvma_vmid_all_process(vcpu); + if (kvm_check_request(KVM_REQ_TLB_FLUSH, vcpu)) + kvm_riscv_tlb_flush_process(vcpu); if (kvm_check_request(KVM_REQ_HFENCE_VVMA_ALL, vcpu)) kvm_riscv_hfence_vvma_all_process(vcpu);