Haoyu Tang b8db76fe55 hv: riscv add vSBI IPI extension support ...

Implement the SBI IPI (Inter-Processor Interrupt) extension to enable
guest VMs to send software interrupts between virtual CPUs.

The implementation handles the SBI_IPI_SEND_IPI function call, which
allows a guest to target one or more vCPUs using either:
- A mask (bitmap of target harts relative to a base hart ID)
- Broadcast mode (when mask_base is UINT64_MAX)

The IPI is delivered by asserting the VS-level software interrupt
(VSSIP, bit 2) on each target vCPU. Proper validation is performed
to ensure hart IDs are within valid range and all masked harts exist.

Tracked-On: #8851
Signed-off-by: Haoyu Tang <haoyu.tang@intel.com>
Acked-by: Wang Yu1 <yu1.wang@intel.com>

2025-12-26 07:57:51 +08:00

..

riscv

hv: riscv add vSBI IPI extension support

2025-12-26 07:57:51 +08:00

x86

hv: riscv: initialize service vm vfdt

2025-11-14 10:44:41 +08:00