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Kernel: Use IO ports instad of MMIO with Bochs graphics in VirtualBox
This is needed for VirtualBox, because it doesn't support controlling the device with MMIO. Fixes #7558.
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2 changed files with 53 additions and 3 deletions
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@ -50,6 +50,8 @@ private:
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bool validate_setup_resolution(size_t width, size_t height);
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u32 find_framebuffer_address();
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void set_resolution_registers(size_t width, size_t height);
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void set_resolution_registers_via_io(size_t width, size_t height);
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bool validate_setup_resolution_with_io(size_t width, size_t height);
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void set_y_offset(size_t);
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PhysicalAddress m_mmio_registers;
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@ -57,6 +59,7 @@ private:
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RefPtr<Graphics::FramebufferConsole> m_framebuffer_console;
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SpinLock<u8> m_console_mode_switch_lock;
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bool m_console_enabled { false };
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bool m_io_required { false };
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};
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}
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