KVM: x86: Rename kvm_cache_regs.h => regs.h

Rename kvm_cache_regs.h to simply regs.h, as the "cache" nomenclature is
already a lie (the file deals with state/registers that aren't cached per
se), and so that more code/functionality can be landed in the header
without making it a truly horrible misnomer.

Deliberately drop the kvm_ prefix/namespace to align with other "local"
headers, and to further differentiate regs.h from the public/global
arch/x86/include/asm/kvm_vcpu_regs.h, which sadly needs to stay in asm/
so that the number of registers can be referenced by kvm_vcpu_arch.

No functional change intended.

Reviewed-by: Yosry Ahmed <yosry@kernel.org>
Reviewed-by: Binbin Wu <binbin.wu@linux.intel.com>
Link: https://patch.msgid.link/20260529222223.870923-7-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

arch/x86/kvm/emulate.c

@@ -20,7 +20,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/kvm_host.h>
-#include "kvm_cache_regs.h"
+#include "regs.h"
 #include "kvm_emulate.h"
 #include <linux/stringify.h>
 #include <asm/debugreg.h>

arch/x86/kvm/lapic.c

@@ -37,7 +37,7 @@
 #include <asm/delay.h>
 #include <linux/atomic.h>
 #include <linux/jump_label.h>
-#include "kvm_cache_regs.h"
+#include "regs.h"
 #include "irq.h"
 #include "ioapic.h"
 #include "trace.h"

arch/x86/kvm/mmu.h

@@ -3,7 +3,7 @@
 #define __KVM_X86_MMU_H
 
 #include <linux/kvm_host.h>
-#include "kvm_cache_regs.h"
+#include "regs.h"
 #include "x86.h"
 #include "cpuid.h"
 

arch/x86/kvm/mmu/mmu.c

@@ -22,7 +22,7 @@
 #include "mmu_internal.h"
 #include "tdp_mmu.h"
 #include "x86.h"
-#include "kvm_cache_regs.h"
+#include "regs.h"
 #include "smm.h"
 #include "kvm_emulate.h"
 #include "page_track.h"

arch/x86/kvm/regs.h

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
-#ifndef ASM_KVM_CACHE_REGS_H
-#define ASM_KVM_CACHE_REGS_H
+#ifndef ARCH_X86_KVM_REGS_H
+#define ARCH_X86_KVM_REGS_H
 
 #include <linux/kvm_host.h>
 

arch/x86/kvm/smm.c

@@ -3,7 +3,7 @@
 
 #include <linux/kvm_host.h>
 #include "x86.h"
-#include "kvm_cache_regs.h"
+#include "regs.h"
 #include "kvm_emulate.h"
 #include "smm.h"
 #include "cpuid.h"

arch/x86/kvm/svm/svm.c

@@ -4,7 +4,7 @@
 
 #include "irq.h"
 #include "mmu.h"
-#include "kvm_cache_regs.h"
+#include "regs.h"
 #include "x86.h"
 #include "smm.h"
 #include "cpuid.h"

arch/x86/kvm/svm/svm.h

@@ -23,7 +23,7 @@
 #include <asm/sev-common.h>
 
 #include "cpuid.h"
-#include "kvm_cache_regs.h"
+#include "regs.h"
 
 /*
  * Helpers to convert to/from physical addresses for pages whose address is

arch/x86/kvm/vmx/nested.h

@@ -2,7 +2,7 @@
 #ifndef __KVM_X86_VMX_NESTED_H
 #define __KVM_X86_VMX_NESTED_H
 
-#include "kvm_cache_regs.h"
+#include "regs.h"
 #include "hyperv.h"
 #include "vmcs12.h"
 #include "vmx.h"

arch/x86/kvm/vmx/sgx.c

@@ -6,7 +6,7 @@
 #include <asm/sgx.h>
 
 #include "x86.h"
-#include "kvm_cache_regs.h"
+#include "regs.h"
 #include "nested.h"
 #include "sgx.h"
 #include "vmx.h"

arch/x86/kvm/vmx/vmx.c

@@ -59,7 +59,7 @@
 #include "hyperv.h"
 #include "kvm_onhyperv.h"
 #include "irq.h"
-#include "kvm_cache_regs.h"
+#include "regs.h"
 #include "lapic.h"
 #include "mmu.h"
 #include "nested.h"

arch/x86/kvm/vmx/vmx.h

@@ -10,7 +10,7 @@
 #include <asm/posted_intr.h>
 
 #include "capabilities.h"
-#include "../kvm_cache_regs.h"
+#include "../regs.h"
 #include "pmu_intel.h"
 #include "vmcs.h"
 #include "vmx_ops.h"

arch/x86/kvm/x86.c

@@ -23,7 +23,7 @@
 #include "mmu.h"
 #include "i8254.h"
 #include "tss.h"
-#include "kvm_cache_regs.h"
+#include "regs.h"
 #include "kvm_emulate.h"
 #include "mmu/page_track.h"
 #include "x86.h"

arch/x86/kvm/x86.h

@@ -6,7 +6,7 @@
 #include <asm/fpu/xstate.h>
 #include <asm/mce.h>
 #include <asm/pvclock.h>
-#include "kvm_cache_regs.h"
+#include "regs.h"
 #include "kvm_emulate.h"
 #include "cpuid.h"