1 files changed, 0 insertions, 140 deletions
diff --git a/arch/arm/kvm/mmio.c b/arch/arm/kvm/mmio.c
deleted file mode 100644
index b8e06b7a2833..000000000000
--- a/arch/arm/kvm/mmio.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Copyright (C) 2012 - Virtual Open Systems and Columbia University
- * Author: Christoffer Dall <c.dall@virtualopensystems.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
- */
-
-#include <linux/kvm_host.h>
-#include <asm/kvm_mmio.h>
-#include <asm/kvm_emulate.h>
-#include <trace/events/kvm.h>
-
-#include "trace.h"
-
-/**
- * kvm_handle_mmio_return -- Handle MMIO loads after user space emulation
- * @vcpu: The VCPU pointer
- * @run:  The VCPU run struct containing the mmio data
- *
- * This should only be called after returning from userspace for MMIO load
- * emulation.
- */
-int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run)
-{
-	unsigned long *dest;
-	unsigned int len;
-	int mask;
-
-	if (!run->mmio.is_write) {
-		dest = vcpu_reg(vcpu, vcpu->arch.mmio_decode.rt);
-		*dest = 0;
-
-		len = run->mmio.len;
-		if (len > sizeof(unsigned long))
-			return -EINVAL;
-
-		memcpy(dest, run->mmio.data, len);
-
-		trace_kvm_mmio(KVM_TRACE_MMIO_READ, len, run->mmio.phys_addr,
-				*((u64 *)run->mmio.data));
-
-		if (vcpu->arch.mmio_decode.sign_extend &&
-		    len < sizeof(unsigned long)) {
-			mask = 1U << ((len * 8) - 1);
-			*dest = (*dest ^ mask) - mask;
-		}
-	}
-
-	return 0;
-}
-
-static int decode_hsr(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
-		      struct kvm_exit_mmio *mmio)
-{
-	unsigned long rt, len;
-	bool is_write, sign_extend;
-
-	if (kvm_vcpu_dabt_isextabt(vcpu)) {
-		/* cache operation on I/O addr, tell guest unsupported */
-		kvm_inject_dabt(vcpu, kvm_vcpu_get_hfar(vcpu));
-		return 1;
-	}
-
-	if (kvm_vcpu_dabt_iss1tw(vcpu)) {
-		/* page table accesses IO mem: tell guest to fix its TTBR */
-		kvm_inject_dabt(vcpu, kvm_vcpu_get_hfar(vcpu));
-		return 1;
-	}
-
-	len = kvm_vcpu_dabt_get_as(vcpu);
-	if (unlikely(len < 0))
-		return len;
-
-	is_write = kvm_vcpu_dabt_iswrite(vcpu);
-	sign_extend = kvm_vcpu_dabt_issext(vcpu);
-	rt = kvm_vcpu_dabt_get_rd(vcpu);
-
-	mmio->is_write = is_write;
-	mmio->phys_addr = fault_ipa;
-	mmio->len = len;
-	vcpu->arch.mmio_decode.sign_extend = sign_extend;
-	vcpu->arch.mmio_decode.rt = rt;
-
-	/*
-	 * The MMIO instruction is emulated and should not be re-executed
-	 * in the guest.
-	 */
-	kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu));
-	return 0;
-}
-
-int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
-		 phys_addr_t fault_ipa)
-{
-	struct kvm_exit_mmio mmio;
-	unsigned long rt;
-	int ret;
-
-	/*
-	 * Prepare MMIO operation. First stash it in a private
-	 * structure that we can use for in-kernel emulation. If the
-	 * kernel can't handle it, copy it into run->mmio and let user
-	 * space do its magic.
-	 */
-
-	if (kvm_vcpu_dabt_isvalid(vcpu)) {
-		ret = decode_hsr(vcpu, fault_ipa, &mmio);
-		if (ret)
-			return ret;
-	} else {
-		kvm_err("load/store instruction decoding not implemented\n");
-		return -ENOSYS;
-	}
-
-	rt = vcpu->arch.mmio_decode.rt;
-	trace_kvm_mmio((mmio.is_write) ? KVM_TRACE_MMIO_WRITE :
-					 KVM_TRACE_MMIO_READ_UNSATISFIED,
-			mmio.len, fault_ipa,
-			(mmio.is_write) ? *vcpu_reg(vcpu, rt) : 0);
-
-	if (mmio.is_write)
-		memcpy(mmio.data, vcpu_reg(vcpu, rt), mmio.len);
-
-	if (vgic_handle_mmio(vcpu, run, &mmio))
-		return 1;
-
-	kvm_prepare_mmio(run, &mmio);
-	return 0;
-}