diff options
Diffstat (limited to 'arch/loongarch/kvm/intc/ipi.c')
| -rw-r--r-- | arch/loongarch/kvm/intc/ipi.c | 26 |
1 files changed, 8 insertions, 18 deletions
diff --git a/arch/loongarch/kvm/intc/ipi.c b/arch/loongarch/kvm/intc/ipi.c index 1058c13dba7f..6a044a74c095 100644 --- a/arch/loongarch/kvm/intc/ipi.c +++ b/arch/loongarch/kvm/intc/ipi.c @@ -111,7 +111,7 @@ static int mail_send(struct kvm *kvm, uint64_t data) vcpu = kvm_get_vcpu_by_cpuid(kvm, cpu); if (unlikely(vcpu == NULL)) { kvm_err("%s: invalid target cpu: %d\n", __func__, cpu); - return -EINVAL; + return 0; } mailbox = ((data & 0xffffffff) >> 2) & 0x7; offset = IOCSR_IPI_BUF_20 + mailbox * 4; @@ -145,7 +145,7 @@ static int send_ipi_data(struct kvm_vcpu *vcpu, gpa_t addr, uint64_t data) srcu_read_unlock(&vcpu->kvm->srcu, idx); if (unlikely(ret)) { kvm_err("%s: : read data from addr %llx failed\n", __func__, addr); - return ret; + return 0; } /* Construct the mask by scanning the bit 27-30 */ for (i = 0; i < 4; i++) { @@ -162,7 +162,7 @@ static int send_ipi_data(struct kvm_vcpu *vcpu, gpa_t addr, uint64_t data) if (unlikely(ret)) kvm_err("%s: : write data to addr %llx failed\n", __func__, addr); - return ret; + return 0; } static int any_send(struct kvm *kvm, uint64_t data) @@ -174,7 +174,7 @@ static int any_send(struct kvm *kvm, uint64_t data) vcpu = kvm_get_vcpu_by_cpuid(kvm, cpu); if (unlikely(vcpu == NULL)) { kvm_err("%s: invalid target cpu: %d\n", __func__, cpu); - return -EINVAL; + return 0; } offset = data & 0xffff; @@ -183,7 +183,6 @@ static int any_send(struct kvm *kvm, uint64_t data) static int loongarch_ipi_readl(struct kvm_vcpu *vcpu, gpa_t addr, int len, void *val) { - int ret = 0; uint32_t offset; uint64_t res = 0; @@ -202,33 +201,27 @@ static int loongarch_ipi_readl(struct kvm_vcpu *vcpu, gpa_t addr, int len, void spin_unlock(&vcpu->arch.ipi_state.lock); break; case IOCSR_IPI_SET: - res = 0; - break; case IOCSR_IPI_CLEAR: - res = 0; break; case IOCSR_IPI_BUF_20 ... IOCSR_IPI_BUF_38 + 7: if (offset + len > IOCSR_IPI_BUF_38 + 8) { kvm_err("%s: invalid offset or len: offset = %d, len = %d\n", __func__, offset, len); - ret = -EINVAL; break; } res = read_mailbox(vcpu, offset, len); break; default: kvm_err("%s: unknown addr: %llx\n", __func__, addr); - ret = -EINVAL; break; } *(uint64_t *)val = res; - return ret; + return 0; } static int loongarch_ipi_writel(struct kvm_vcpu *vcpu, gpa_t addr, int len, const void *val) { - int ret = 0; uint64_t data; uint32_t offset; @@ -239,7 +232,6 @@ static int loongarch_ipi_writel(struct kvm_vcpu *vcpu, gpa_t addr, int len, cons switch (offset) { case IOCSR_IPI_STATUS: - ret = -EINVAL; break; case IOCSR_IPI_EN: spin_lock(&vcpu->arch.ipi_state.lock); @@ -257,7 +249,6 @@ static int loongarch_ipi_writel(struct kvm_vcpu *vcpu, gpa_t addr, int len, cons if (offset + len > IOCSR_IPI_BUF_38 + 8) { kvm_err("%s: invalid offset or len: offset = %d, len = %d\n", __func__, offset, len); - ret = -EINVAL; break; } write_mailbox(vcpu, offset, data, len); @@ -266,18 +257,17 @@ static int loongarch_ipi_writel(struct kvm_vcpu *vcpu, gpa_t addr, int len, cons ipi_send(vcpu->kvm, data); break; case IOCSR_MAIL_SEND: - ret = mail_send(vcpu->kvm, data); + mail_send(vcpu->kvm, data); break; case IOCSR_ANY_SEND: - ret = any_send(vcpu->kvm, data); + any_send(vcpu->kvm, data); break; default: kvm_err("%s: unknown addr: %llx\n", __func__, addr); - ret = -EINVAL; break; } - return ret; + return 0; } static int kvm_ipi_read(struct kvm_vcpu *vcpu, |