1 files changed, 0 insertions, 131 deletions
diff --git a/virt/kvm/arm/pvtime.c b/virt/kvm/arm/pvtime.c
deleted file mode 100644
index 1e0f4c284888..000000000000
--- a/virt/kvm/arm/pvtime.c
+++ /dev/null
@@ -1,131 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2019 Arm Ltd.
-
-#include <linux/arm-smccc.h>
-#include <linux/kvm_host.h>
-
-#include <asm/kvm_mmu.h>
-#include <asm/pvclock-abi.h>
-
-#include <kvm/arm_hypercalls.h>
-
-void kvm_update_stolen_time(struct kvm_vcpu *vcpu)
-{
-	struct kvm *kvm = vcpu->kvm;
-	u64 steal;
-	__le64 steal_le;
-	u64 offset;
-	int idx;
-	u64 base = vcpu->arch.steal.base;
-
-	if (base == GPA_INVALID)
-		return;
-
-	/* Let's do the local bookkeeping */
-	steal = vcpu->arch.steal.steal;
-	steal += current->sched_info.run_delay - vcpu->arch.steal.last_steal;
-	vcpu->arch.steal.last_steal = current->sched_info.run_delay;
-	vcpu->arch.steal.steal = steal;
-
-	steal_le = cpu_to_le64(steal);
-	idx = srcu_read_lock(&kvm->srcu);
-	offset = offsetof(struct pvclock_vcpu_stolen_time, stolen_time);
-	kvm_put_guest(kvm, base + offset, steal_le, u64);
-	srcu_read_unlock(&kvm->srcu, idx);
-}
-
-long kvm_hypercall_pv_features(struct kvm_vcpu *vcpu)
-{
-	u32 feature = smccc_get_arg1(vcpu);
-	long val = SMCCC_RET_NOT_SUPPORTED;
-
-	switch (feature) {
-	case ARM_SMCCC_HV_PV_TIME_FEATURES:
-	case ARM_SMCCC_HV_PV_TIME_ST:
-		val = SMCCC_RET_SUCCESS;
-		break;
-	}
-
-	return val;
-}
-
-gpa_t kvm_init_stolen_time(struct kvm_vcpu *vcpu)
-{
-	struct pvclock_vcpu_stolen_time init_values = {};
-	struct kvm *kvm = vcpu->kvm;
-	u64 base = vcpu->arch.steal.base;
-	int idx;
-
-	if (base == GPA_INVALID)
-		return base;
-
-	/*
-	 * Start counting stolen time from the time the guest requests
-	 * the feature enabled.
-	 */
-	vcpu->arch.steal.steal = 0;
-	vcpu->arch.steal.last_steal = current->sched_info.run_delay;
-
-	idx = srcu_read_lock(&kvm->srcu);
-	kvm_write_guest(kvm, base, &init_values, sizeof(init_values));
-	srcu_read_unlock(&kvm->srcu, idx);
-
-	return base;
-}
-
-int kvm_arm_pvtime_set_attr(struct kvm_vcpu *vcpu,
-			    struct kvm_device_attr *attr)
-{
-	u64 __user *user = (u64 __user *)attr->addr;
-	struct kvm *kvm = vcpu->kvm;
-	u64 ipa;
-	int ret = 0;
-	int idx;
-
-	if (attr->attr != KVM_ARM_VCPU_PVTIME_IPA)
-		return -ENXIO;
-
-	if (get_user(ipa, user))
-		return -EFAULT;
-	if (!IS_ALIGNED(ipa, 64))
-		return -EINVAL;
-	if (vcpu->arch.steal.base != GPA_INVALID)
-		return -EEXIST;
-
-	/* Check the address is in a valid memslot */
-	idx = srcu_read_lock(&kvm->srcu);
-	if (kvm_is_error_hva(gfn_to_hva(kvm, ipa >> PAGE_SHIFT)))
-		ret = -EINVAL;
-	srcu_read_unlock(&kvm->srcu, idx);
-
-	if (!ret)
-		vcpu->arch.steal.base = ipa;
-
-	return ret;
-}
-
-int kvm_arm_pvtime_get_attr(struct kvm_vcpu *vcpu,
-			    struct kvm_device_attr *attr)
-{
-	u64 __user *user = (u64 __user *)attr->addr;
-	u64 ipa;
-
-	if (attr->attr != KVM_ARM_VCPU_PVTIME_IPA)
-		return -ENXIO;
-
-	ipa = vcpu->arch.steal.base;
-
-	if (put_user(ipa, user))
-		return -EFAULT;
-	return 0;
-}
-
-int kvm_arm_pvtime_has_attr(struct kvm_vcpu *vcpu,
-			    struct kvm_device_attr *attr)
-{
-	switch (attr->attr) {
-	case KVM_ARM_VCPU_PVTIME_IPA:
-		return 0;
-	}
-	return -ENXIO;
-}