Haoyu Tang 730f11e4c9 hv: riscv initialize VM time offset and vcpu timer ...

Initialize the VM's time_delta to provide a consistent time offset for
guests, and properly initialize vcpu timer-related CSRs (htimedelta and
vstimecmp) to enable guest timer virtualization.

Changes:
- Add time_delta field to vm_arch structure to track VM time offset
- Initialize time_delta to -cpu_ticks() at VM creation, making
  guest time start from 0
- Save/restore htimedelta CSR in vcpu load/unload paths
- Initialize vcpu's htimedelta from VM's time_delta
- Reset vstimecmp to invalid value (0xffffffffffffffff) on vcpu reset
- Add SSTC (Sstc extension) capability check

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

..

arch

hv: riscv initialize VM time offset and vcpu timer

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

common

hv: fdt: Add API to set kernel boot args

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

debug

hv/misc: vm_config: vm_config abstraction

2025-10-30 13:30:32 +08:00

dm

hv: riscv: initialize service vm vfdt

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

hw

hv: timer: rename functions to follow naming convention

2025-09-17 08:55:12 +08:00

lib

hv: libfdt: Fix code scan issues of libfdt

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

public

hv: add GUEST_FLAG_STATELESS flag

2024-07-30 09:26:50 +08:00