arm: Remove 32bit KVM host support

That's it. Remove all references to KVM itself, and document
that although it is no more, the ABI between SVC and HYP still
exists.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Christoffer Dall <christoffer.dall@arm.com>

1 files changed, 0 insertions, 77 deletions

diff --git a/arch/arm/include/asm/kvm_asm.h b/arch/arm/include/asm/kvm_asm.h
deleted file mode 100644
index f615830f9f57..000000000000
--- a/arch/arm/include/asm/kvm_asm.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) 2012 - Virtual Open Systems and Columbia University
- * Author: Christoffer Dall <c.dall@virtualopensystems.com>
- */
-
-#ifndef __ARM_KVM_ASM_H__
-#define __ARM_KVM_ASM_H__
-
-#include <asm/virt.h>
-
-#define ARM_EXIT_WITH_ABORT_BIT  31
-#define ARM_EXCEPTION_CODE(x)	  ((x) & ~(1U << ARM_EXIT_WITH_ABORT_BIT))
-#define ARM_EXCEPTION_IS_TRAP(x)					\
-	(ARM_EXCEPTION_CODE((x)) == ARM_EXCEPTION_PREF_ABORT	||	\
-	 ARM_EXCEPTION_CODE((x)) == ARM_EXCEPTION_DATA_ABORT	||	\
-	 ARM_EXCEPTION_CODE((x)) == ARM_EXCEPTION_HVC)
-#define ARM_ABORT_PENDING(x)	  !!((x) & (1U << ARM_EXIT_WITH_ABORT_BIT))
-
-#define ARM_EXCEPTION_RESET	  0
-#define ARM_EXCEPTION_UNDEFINED   1
-#define ARM_EXCEPTION_SOFTWARE    2
-#define ARM_EXCEPTION_PREF_ABORT  3
-#define ARM_EXCEPTION_DATA_ABORT  4
-#define ARM_EXCEPTION_IRQ	  5
-#define ARM_EXCEPTION_FIQ	  6
-#define ARM_EXCEPTION_HVC	  7
-#define ARM_EXCEPTION_HYP_GONE	  HVC_STUB_ERR
-/*
- * The rr_lo_hi macro swaps a pair of registers depending on
- * current endianness. It is used in conjunction with ldrd and strd
- * instructions that load/store a 64-bit value from/to memory to/from
- * a pair of registers which are used with the mrrc and mcrr instructions.
- * If used with the ldrd/strd instructions, the a1 parameter is the first
- * source/destination register and the a2 parameter is the second
- * source/destination register. Note that the ldrd/strd instructions
- * already swap the bytes within the words correctly according to the
- * endianness setting, but the order of the registers need to be effectively
- * swapped when used with the mrrc/mcrr instructions.
- */
-#ifdef CONFIG_CPU_ENDIAN_BE8
-#define rr_lo_hi(a1, a2) a2, a1
-#else
-#define rr_lo_hi(a1, a2) a1, a2
-#endif
-
-#define kvm_ksym_ref(kva)	(kva)
-
-#ifndef __ASSEMBLY__
-struct kvm;
-struct kvm_vcpu;
-
-extern char __kvm_hyp_init[];
-extern char __kvm_hyp_init_end[];
-
-extern void __kvm_flush_vm_context(void);
-extern void __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa);
-extern void __kvm_tlb_flush_vmid(struct kvm *kvm);
-extern void __kvm_tlb_flush_local_vmid(struct kvm_vcpu *vcpu);
-
-extern void __kvm_timer_set_cntvoff(u32 cntvoff_low, u32 cntvoff_high);
-
-/* no VHE on 32-bit :( */
-static inline int kvm_vcpu_run_vhe(struct kvm_vcpu *vcpu) { BUG(); return 0; }
-
-extern int __kvm_vcpu_run_nvhe(struct kvm_vcpu *vcpu);
-
-extern void __init_stage2_translation(void);
-
-extern u64 __vgic_v3_get_ich_vtr_el2(void);
-extern u64 __vgic_v3_read_vmcr(void);
-extern void __vgic_v3_write_vmcr(u32 vmcr);
-extern void __vgic_v3_init_lrs(void);
-
-#endif
-
-#endif /* __ARM_KVM_ASM_H__ */