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-rw-r--r--arch/arm64/kvm/vgic-v2-switch.S134
1 files changed, 0 insertions, 134 deletions
diff --git a/arch/arm64/kvm/vgic-v2-switch.S b/arch/arm64/kvm/vgic-v2-switch.S
deleted file mode 100644
index 3f000712a85d..000000000000
--- a/arch/arm64/kvm/vgic-v2-switch.S
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * Copyright (C) 2012,2013 - ARM Ltd
- * Author: Marc Zyngier <marc.zyngier@arm.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, see <http://www.gnu.org/licenses/>.
- */
-
-#include <linux/linkage.h>
-#include <linux/irqchip/arm-gic.h>
-
-#include <asm/assembler.h>
-#include <asm/memory.h>
-#include <asm/asm-offsets.h>
-#include <asm/kvm.h>
-#include <asm/kvm_asm.h>
-#include <asm/kvm_arm.h>
-#include <asm/kvm_mmu.h>
-
- .text
- .pushsection .hyp.text, "ax"
-
-/*
- * Save the VGIC CPU state into memory
- * x0: Register pointing to VCPU struct
- * Do not corrupt x1!!!
- */
-ENTRY(__save_vgic_v2_state)
-__save_vgic_v2_state:
- /* Get VGIC VCTRL base into x2 */
- ldr x2, [x0, #VCPU_KVM]
- kern_hyp_va x2
- ldr x2, [x2, #KVM_VGIC_VCTRL]
- kern_hyp_va x2
- cbz x2, 2f // disabled
-
- /* Compute the address of struct vgic_cpu */
- add x3, x0, #VCPU_VGIC_CPU
-
- /* Save all interesting registers */
- ldr w5, [x2, #GICH_VMCR]
- ldr w6, [x2, #GICH_MISR]
- ldr w7, [x2, #GICH_EISR0]
- ldr w8, [x2, #GICH_EISR1]
- ldr w9, [x2, #GICH_ELRSR0]
- ldr w10, [x2, #GICH_ELRSR1]
- ldr w11, [x2, #GICH_APR]
-CPU_BE( rev w5, w5 )
-CPU_BE( rev w6, w6 )
-CPU_BE( rev w7, w7 )
-CPU_BE( rev w8, w8 )
-CPU_BE( rev w9, w9 )
-CPU_BE( rev w10, w10 )
-CPU_BE( rev w11, w11 )
-
- str w5, [x3, #VGIC_V2_CPU_VMCR]
- str w6, [x3, #VGIC_V2_CPU_MISR]
-CPU_LE( str w7, [x3, #VGIC_V2_CPU_EISR] )
-CPU_LE( str w8, [x3, #(VGIC_V2_CPU_EISR + 4)] )
-CPU_LE( str w9, [x3, #VGIC_V2_CPU_ELRSR] )
-CPU_LE( str w10, [x3, #(VGIC_V2_CPU_ELRSR + 4)] )
-CPU_BE( str w7, [x3, #(VGIC_V2_CPU_EISR + 4)] )
-CPU_BE( str w8, [x3, #VGIC_V2_CPU_EISR] )
-CPU_BE( str w9, [x3, #(VGIC_V2_CPU_ELRSR + 4)] )
-CPU_BE( str w10, [x3, #VGIC_V2_CPU_ELRSR] )
- str w11, [x3, #VGIC_V2_CPU_APR]
-
- /* Clear GICH_HCR */
- str wzr, [x2, #GICH_HCR]
-
- /* Save list registers */
- add x2, x2, #GICH_LR0
- ldr w4, [x3, #VGIC_CPU_NR_LR]
- add x3, x3, #VGIC_V2_CPU_LR
-1: ldr w5, [x2], #4
-CPU_BE( rev w5, w5 )
- str w5, [x3], #4
- sub w4, w4, #1
- cbnz w4, 1b
-2:
- ret
-ENDPROC(__save_vgic_v2_state)
-
-/*
- * Restore the VGIC CPU state from memory
- * x0: Register pointing to VCPU struct
- */
-ENTRY(__restore_vgic_v2_state)
-__restore_vgic_v2_state:
- /* Get VGIC VCTRL base into x2 */
- ldr x2, [x0, #VCPU_KVM]
- kern_hyp_va x2
- ldr x2, [x2, #KVM_VGIC_VCTRL]
- kern_hyp_va x2
- cbz x2, 2f // disabled
-
- /* Compute the address of struct vgic_cpu */
- add x3, x0, #VCPU_VGIC_CPU
-
- /* We only restore a minimal set of registers */
- ldr w4, [x3, #VGIC_V2_CPU_HCR]
- ldr w5, [x3, #VGIC_V2_CPU_VMCR]
- ldr w6, [x3, #VGIC_V2_CPU_APR]
-CPU_BE( rev w4, w4 )
-CPU_BE( rev w5, w5 )
-CPU_BE( rev w6, w6 )
-
- str w4, [x2, #GICH_HCR]
- str w5, [x2, #GICH_VMCR]
- str w6, [x2, #GICH_APR]
-
- /* Restore list registers */
- add x2, x2, #GICH_LR0
- ldr w4, [x3, #VGIC_CPU_NR_LR]
- add x3, x3, #VGIC_V2_CPU_LR
-1: ldr w5, [x3], #4
-CPU_BE( rev w5, w5 )
- str w5, [x2], #4
- sub w4, w4, #1
- cbnz w4, 1b
-2:
- ret
-ENDPROC(__restore_vgic_v2_state)
-
- .popsection