KVM: arm64: pkvm: Consolidate include files

kvm_fixed_config.h is pkvm specific, and would be better placed
near its users. At the same time, include/nvhe/sys_regs.h is now
almost empty.

Merge the two into arch/arm64/kvm/hyp/include/nvhe/fixed_config.h.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-9-maz@kernel.org

arch/arm64/kvm/hyp/include/nvhe/fixed_config.h

@@ -192,4 +192,9 @@
 	ARM64_FEATURE_MASK(ID_AA64ISAR1_I8MM) \
 	)
 
+u64 pvm_read_id_reg(const struct kvm_vcpu *vcpu, u32 id);
+bool kvm_handle_pvm_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code);
+int kvm_check_pvm_sysreg_table(void);
+void inject_undef64(struct kvm_vcpu *vcpu);
+
 #endif /* __ARM64_KVM_FIXED_CONFIG_H__ */

arch/arm64/kvm/hyp/include/nvhe/sys_regs.h

@@ -1,17 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) 2021 Google LLC
- * Author: Fuad Tabba <tabba@google.com>
- */
-
-#ifndef __ARM64_KVM_NVHE_SYS_REGS_H__
-#define __ARM64_KVM_NVHE_SYS_REGS_H__
-
-#include <asm/kvm_host.h>
-
-u64 pvm_read_id_reg(const struct kvm_vcpu *vcpu, u32 id);
-bool kvm_handle_pvm_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code);
-int kvm_check_pvm_sysreg_table(void);
-void inject_undef64(struct kvm_vcpu *vcpu);
-
-#endif /* __ARM64_KVM_NVHE_SYS_REGS_H__ */

arch/arm64/kvm/hyp/nvhe/pkvm.c

@@ -6,8 +6,7 @@
 
 #include <linux/kvm_host.h>
 #include <linux/mm.h>
-#include <asm/kvm_fixed_config.h>
-#include <nvhe/sys_regs.h>
+#include <nvhe/fixed_config.h>
 #include <nvhe/trap_handler.h>
 
 /*

arch/arm64/kvm/hyp/nvhe/setup.c

@@ -10,11 +10,11 @@
 #include <asm/kvm_pgtable.h>
 
 #include <nvhe/early_alloc.h>
+#include <nvhe/fixed_config.h>
 #include <nvhe/gfp.h>
 #include <nvhe/memory.h>
 #include <nvhe/mem_protect.h>
 #include <nvhe/mm.h>
-#include <nvhe/sys_regs.h>
 #include <nvhe/trap_handler.h>
 
 struct hyp_pool hpool;

arch/arm64/kvm/hyp/nvhe/switch.c

@@ -20,7 +20,6 @@
 #include <asm/kprobes.h>
 #include <asm/kvm_asm.h>
 #include <asm/kvm_emulate.h>
-#include <asm/kvm_fixed_config.h>
 #include <asm/kvm_hyp.h>
 #include <asm/kvm_mmu.h>
 #include <asm/fpsimd.h>
@@ -28,8 +27,8 @@
 #include <asm/processor.h>
 #include <asm/thread_info.h>
 
+#include <nvhe/fixed_config.h>
 #include <nvhe/mem_protect.h>
-#include <nvhe/sys_regs.h>
 
 /* Non-VHE specific context */
 DEFINE_PER_CPU(struct kvm_host_data, kvm_host_data);

arch/arm64/kvm/hyp/nvhe/sys_regs.c

@@ -7,12 +7,11 @@
 #include <linux/irqchip/arm-gic-v3.h>
 
 #include <asm/kvm_asm.h>
-#include <asm/kvm_fixed_config.h>
 #include <asm/kvm_mmu.h>
 
 #include <hyp/adjust_pc.h>
 
-#include <nvhe/sys_regs.h>
+#include <nvhe/fixed_config.h>
 
 #include "../../sys_regs.h"