diff options
author | Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com> | 2023-10-10 11:40:56 +0000 |
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committer | Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com> | 2023-10-10 11:40:56 +0000 |
commit | e02cda008591317b1625707ff8e115a4841aa889 (patch) | |
tree | aee302e3cf8b59ec2d32ec481be3d1afddfc8968 /include/hw/ide/pci.h | |
parent | cc668e6b7e0ffd8c9d130513d12053cf5eda1d3b (diff) |
Introduce Virtio-loopback epsilon release:
Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.
Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9
Diffstat (limited to 'include/hw/ide/pci.h')
-rw-r--r-- | include/hw/ide/pci.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/include/hw/ide/pci.h b/include/hw/ide/pci.h new file mode 100644 index 000000000..d8384e1c4 --- /dev/null +++ b/include/hw/ide/pci.h @@ -0,0 +1,72 @@ +#ifndef HW_IDE_PCI_H +#define HW_IDE_PCI_H + +#include "hw/ide/internal.h" +#include "hw/pci/pci.h" +#include "qom/object.h" + +#define BM_STATUS_DMAING 0x01 +#define BM_STATUS_ERROR 0x02 +#define BM_STATUS_INT 0x04 + +#define BM_CMD_START 0x01 +#define BM_CMD_READ 0x08 + +typedef struct BMDMAState { + IDEDMA dma; + uint8_t cmd; + uint8_t status; + uint32_t addr; + + IDEBus *bus; + /* current transfer state */ + uint32_t cur_addr; + uint32_t cur_prd_last; + uint32_t cur_prd_addr; + uint32_t cur_prd_len; + BlockCompletionFunc *dma_cb; + MemoryRegion addr_ioport; + MemoryRegion extra_io; + qemu_irq irq; + + /* Bit 0-2 and 7: BM status register + * Bit 3-6: bus->error_status */ + uint8_t migration_compat_status; + uint8_t migration_retry_unit; + int64_t migration_retry_sector_num; + uint32_t migration_retry_nsector; + + struct PCIIDEState *pci_dev; +} BMDMAState; + +#define TYPE_PCI_IDE "pci-ide" +OBJECT_DECLARE_SIMPLE_TYPE(PCIIDEState, PCI_IDE) + +struct PCIIDEState { + /*< private >*/ + PCIDevice parent_obj; + /*< public >*/ + + IDEBus bus[2]; + BMDMAState bmdma[2]; + uint32_t secondary; /* used only for cmd646 */ + MemoryRegion bmdma_bar; + MemoryRegion cmd_bar[2]; + MemoryRegion data_bar[2]; +}; + +static inline IDEState *bmdma_active_if(BMDMAState *bmdma) +{ + assert(bmdma->bus->retry_unit != (uint8_t)-1); + return bmdma->bus->ifs + bmdma->bus->retry_unit; +} + +void bmdma_init(IDEBus *bus, BMDMAState *bm, PCIIDEState *d); +void bmdma_cmd_writeb(BMDMAState *bm, uint32_t val); +extern MemoryRegionOps bmdma_addr_ioport_ops; +void pci_ide_create_devs(PCIDevice *dev); + +extern const VMStateDescription vmstate_ide_pci; +extern const MemoryRegionOps pci_ide_cmd_le_ops; +extern const MemoryRegionOps pci_ide_data_le_ops; +#endif |