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Jiayuan Yang 2025-04-15 16:45:52 +08:00 committed by GitHub
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doc/developer-guides/hld/ivshmem-hld.rst
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@ -107,22 +107,23 @@ MMIO Registers Definition
- 0x0 - 0x0
- R/W - R/W
- Interrupt Mask register is used for legacy interrupt. - Interrupt Mask register is used for legacy interrupt.
ivshmem doesn't support interrupts, so this register is reserved. IVSHMEM doesn't support legacy INTx interrupts, so this register
is reserved.
* - IVSHMEM\_IRQ\_STA\_REG * - IVSHMEM\_IRQ\_STA\_REG
- 0x4 - 0x4
- R/W - R/W
- Interrupt Status register is used for legacy interrupt. - Interrupt Status register is used for legacy interrupt.
ivshmem doesn't support interrupts, so this register is reserved. IVSHMEM doesn't support legacy INTx interrupts, so this register
is reserved.
* - IVSHMEM\_IV\_POS\_REG * - IVSHMEM\_IV\_POS\_REG
- 0x8 - 0x8
- RO - RO
- Inter-VM Position register is used to identify the VM ID. - Inter-VM Position register is used to identify the VM ID.
Its value is zero. Its value is equal to device ID.
* - IVSHMEM\_DOORBELL\_REG * - IVSHMEM\_DOORBELL\_REG
- 0xC - 0xC
- WO - WO
- Doorbell register is used to trigger an interrupt to the peer VM. - Doorbell register is used to trigger an interrupt to the peer VM.
ivshmem doesn't support interrupts.
Usage Usage
***** *****