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Kernel/VirtIO: Move declarations and definitions to a separate file

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Liav A 2023-04-26 12:22:29 +03:00 • committed by Andreas Kling
parent 2ec043c4db
commit aa985a0570
2 changed files with 79 additions and 67 deletions
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76
Kernel/Bus/VirtIO/Definitions.h Normal file
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@ -0,0 +1,76 @@
/*
* Copyright (c) 2021, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Types.h>
namespace Kernel::VirtIO {
#define REG_DEVICE_FEATURES 0x0
#define REG_GUEST_FEATURES 0x4
#define REG_QUEUE_ADDRESS 0x8
#define REG_QUEUE_SIZE 0xc
#define REG_QUEUE_SELECT 0xe
#define REG_QUEUE_NOTIFY 0x10
#define REG_DEVICE_STATUS 0x12
#define REG_ISR_STATUS 0x13
#define DEVICE_STATUS_ACKNOWLEDGE (1 << 0)
#define DEVICE_STATUS_DRIVER (1 << 1)
#define DEVICE_STATUS_DRIVER_OK (1 << 2)
#define DEVICE_STATUS_FEATURES_OK (1 << 3)
#define DEVICE_STATUS_DEVICE_NEEDS_RESET (1 << 6)
#define DEVICE_STATUS_FAILED (1 << 7)
#define VIRTIO_F_INDIRECT_DESC ((u64)1 << 28)
#define VIRTIO_F_VERSION_1 ((u64)1 << 32)
#define VIRTIO_F_RING_PACKED ((u64)1 << 34)
#define VIRTIO_F_IN_ORDER ((u64)1 << 35)
#define VIRTIO_PCI_CAP_COMMON_CFG 1
#define VIRTIO_PCI_CAP_NOTIFY_CFG 2
#define VIRTIO_PCI_CAP_ISR_CFG 3
#define VIRTIO_PCI_CAP_DEVICE_CFG 4
#define VIRTIO_PCI_CAP_PCI_CFG 5
// virtio_pci_common_cfg
#define COMMON_CFG_DEVICE_FEATURE_SELECT 0x0
#define COMMON_CFG_DEVICE_FEATURE 0x4
#define COMMON_CFG_DRIVER_FEATURE_SELECT 0x8
#define COMMON_CFG_DRIVER_FEATURE 0xc
#define COMMON_CFG_MSIX_CONFIG 0x10
#define COMMON_CFG_NUM_QUEUES 0x12
#define COMMON_CFG_DEVICE_STATUS 0x14
#define COMMON_CFG_CONFIG_GENERATION 0x15
#define COMMON_CFG_QUEUE_SELECT 0x16
#define COMMON_CFG_QUEUE_SIZE 0x18
#define COMMON_CFG_QUEUE_MSIX_VECTOR 0x1a
#define COMMON_CFG_QUEUE_ENABLE 0x1c
#define COMMON_CFG_QUEUE_NOTIFY_OFF 0x1e
#define COMMON_CFG_QUEUE_DESC 0x20
#define COMMON_CFG_QUEUE_DRIVER 0x28
#define COMMON_CFG_QUEUE_DEVICE 0x30
#define QUEUE_INTERRUPT 0x1
#define DEVICE_CONFIG_INTERRUPT 0x2
enum class ConfigurationType : u8 {
Common = 1,
Notify = 2,
ISR = 3,
Device = 4,
PCICapabilitiesAccess = 5
};
struct Configuration {
ConfigurationType cfg_type;
u8 bar;
u32 offset;
u32 length;
};
}

70
Kernel/Bus/VirtIO/Device.h
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@ -8,77 +8,13 @@
#include <Kernel/Bus/PCI/Access.h>
#include <Kernel/Bus/PCI/Device.h>
#include <Kernel/Bus/VirtIO/Definitions.h>
#include <Kernel/Bus/VirtIO/Queue.h>
#include <Kernel/IOWindow.h>
#include <Kernel/Interrupts/IRQHandler.h>
#include <Kernel/Memory/MemoryManager.h>
namespace Kernel {
#define REG_DEVICE_FEATURES 0x0
#define REG_GUEST_FEATURES 0x4
#define REG_QUEUE_ADDRESS 0x8
#define REG_QUEUE_SIZE 0xc
#define REG_QUEUE_SELECT 0xe
#define REG_QUEUE_NOTIFY 0x10
#define REG_DEVICE_STATUS 0x12
#define REG_ISR_STATUS 0x13
#define DEVICE_STATUS_ACKNOWLEDGE (1 << 0)
#define DEVICE_STATUS_DRIVER (1 << 1)
#define DEVICE_STATUS_DRIVER_OK (1 << 2)
#define DEVICE_STATUS_FEATURES_OK (1 << 3)
#define DEVICE_STATUS_DEVICE_NEEDS_RESET (1 << 6)
#define DEVICE_STATUS_FAILED (1 << 7)
#define VIRTIO_F_INDIRECT_DESC ((u64)1 << 28)
#define VIRTIO_F_VERSION_1 ((u64)1 << 32)
#define VIRTIO_F_RING_PACKED ((u64)1 << 34)
#define VIRTIO_F_IN_ORDER ((u64)1 << 35)
#define VIRTIO_PCI_CAP_COMMON_CFG 1
#define VIRTIO_PCI_CAP_NOTIFY_CFG 2
#define VIRTIO_PCI_CAP_ISR_CFG 3
#define VIRTIO_PCI_CAP_DEVICE_CFG 4
#define VIRTIO_PCI_CAP_PCI_CFG 5
// virtio_pci_common_cfg
#define COMMON_CFG_DEVICE_FEATURE_SELECT 0x0
#define COMMON_CFG_DEVICE_FEATURE 0x4
#define COMMON_CFG_DRIVER_FEATURE_SELECT 0x8
#define COMMON_CFG_DRIVER_FEATURE 0xc
#define COMMON_CFG_MSIX_CONFIG 0x10
#define COMMON_CFG_NUM_QUEUES 0x12
#define COMMON_CFG_DEVICE_STATUS 0x14
#define COMMON_CFG_CONFIG_GENERATION 0x15
#define COMMON_CFG_QUEUE_SELECT 0x16
#define COMMON_CFG_QUEUE_SIZE 0x18
#define COMMON_CFG_QUEUE_MSIX_VECTOR 0x1a
#define COMMON_CFG_QUEUE_ENABLE 0x1c
#define COMMON_CFG_QUEUE_NOTIFY_OFF 0x1e
#define COMMON_CFG_QUEUE_DESC 0x20
#define COMMON_CFG_QUEUE_DRIVER 0x28
#define COMMON_CFG_QUEUE_DEVICE 0x30
#define QUEUE_INTERRUPT 0x1
#define DEVICE_CONFIG_INTERRUPT 0x2
namespace VirtIO {
enum class ConfigurationType : u8 {
Common = 1,
Notify = 2,
ISR = 3,
Device = 4,
PCICapabilitiesAccess = 5
};
struct Configuration {
ConfigurationType cfg_type;
u8 bar;
u32 offset;
u32 length;
};
namespace Kernel::VirtIO {
void detect();
@ -208,5 +144,5 @@ private:
bool m_did_setup_queues { false };
u32 m_notify_multiplier { 0 };
};
};
}