Files
acrn-hypervisor/hypervisor
Shiqing Gao 395a7c44bc hv: riscv: fix local_irq_save to only clear SIE bit
local_irq_save() is intended to read and clear the SIE bit in
sstatus (disabling interrupts). The current implementation mistakenly
clears all bits in sstatus.

This patch corrects the inline assembly so that only the SIE bit is affected,
ensuring proper interrupt save/disable semantics on RISC-V.

Fixes: a7239d126 ("[FIXME] hv: risc-v add denpended implementation in cpu.h")

Tracked-On: #8813
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Reviewed-by: Yifan Liu  <yifan1.liu@intel.com>
Acked-by: Wang, Yu1 <yu1.wang@intel.com>
2025-09-29 14:01:00 +08:00
..
2025-09-25 16:30:26 +08:00
2025-09-25 16:30:26 +08:00

ACRN Hypervisor
###############

The open source `Project ACRN`_ defines a device hypervisor reference stack and
an architecture for running multiple software subsystems, managed securely, on
a consolidated system by means of a virtual machine manager. It also defines a
reference framework implementation for virtual device emulation, called the
"ACRN Device Model".

The ACRN Hypervisor is a Type 1 reference hypervisor stack, running directly on
the bare-metal hardware, and is suitable for a variety of IoT and embedded
device solutions. The ACRN hypervisor addresses the gap that currently exists
between datacenter hypervisors, and hard partitioning hypervisors. The ACRN
hypervisor architecture partitions the system into different functional
domains, with carefully selected guest OS sharing optimizations for IoT and
embedded devices.

You can find out more about Project ACRN on the `Project ACRN documentation`_
website.

.. _`Project ACRN`: https://projectacrn.org
.. _`ACRN Hypervisor`: https://github.com/projectacrn/acrn-hypervisor
.. _`Project ACRN documentation`: https://projectacrn.github.io/