Kernel: Move x86 Bochs VBE code to the Arch/x86 directory

To do this, we make the QEMUDisplayConnector class more standalone so it
does not need to inherit from the BochsDisplayConnector class.

Kernel/Arch/x86/Hypervisor/BochsDisplayConnector.h

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Try.h>
+#include <Kernel/Graphics/Bochs/Definitions.h>
+#include <Kernel/Graphics/Console/GenericFramebufferConsole.h>
+#include <Kernel/Graphics/DisplayConnector.h>
+#include <Kernel/Library/LockRefPtr.h>
+#include <Kernel/Locking/Spinlock.h>
+#include <Kernel/Memory/TypedMapping.h>
+
+namespace Kernel {
+
+class BochsDisplayConnector
+    : public DisplayConnector {
+    friend class BochsGraphicsAdapter;
+    friend class DeviceManagement;
+
+public:
+    AK_TYPEDEF_DISTINCT_ORDERED_ID(u16, IndexID);
+
+    static NonnullLockRefPtr<BochsDisplayConnector> must_create(PhysicalAddress framebuffer_address, size_t framebuffer_resource_size, bool virtual_box_hardware);
+
+private:
+    IndexID index_id() const;
+
+    ErrorOr<void> create_attached_framebuffer_console();
+
+    BochsDisplayConnector(PhysicalAddress framebuffer_address, size_t framebuffer_resource_size);
+
+    virtual bool mutable_mode_setting_capable() const override final { return true; }
+    virtual bool double_framebuffering_capable() const override { return false; }
+    virtual ErrorOr<void> set_mode_setting(ModeSetting const&) override;
+    virtual ErrorOr<void> set_safe_mode_setting() override final;
+    virtual ErrorOr<void> set_y_offset(size_t y) override;
+    virtual ErrorOr<void> unblank() override;
+
+    virtual bool partial_flush_support() const override final { return false; }
+    virtual bool flush_support() const override final { return false; }
+    // Note: Paravirtualized hardware doesn't require a defined refresh rate for modesetting.
+    virtual bool refresh_rate_support() const override final { return false; }
+
+    virtual ErrorOr<void> flush_first_surface() override final;
+
+    virtual void enable_console() override final;
+    virtual void disable_console() override final;
+
+    LockRefPtr<Graphics::GenericFramebufferConsole> m_framebuffer_console;
+};
+}