[PATCH v3 0/2] LoongArch: KVM: Fix timer restore issues

[Tao Cui]

From: Tao Cui <cuitao@xxxxxxxxxx>

Fix two issues in kvm_restore_timer():

Patch 1 fixes a one-shot timer firing immediately after migration because
vcpu->arch.expire is not migrated.

Patch 2 fixes a division-by-zero crash when a guest programs a periodic
timer with a period value of zero.

Both are in the same function (kvm_restore_timer) and are sent as a
series for convenience.

Tao Cui (2):
  LoongArch: KVM: Reload one-shot TVAL on migration destination
  LoongArch: KVM: Prevent division by zero in periodic timer restore

 arch/loongarch/kvm/timer.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

---
Changes in v3:
- Add patch 2 (division by zero fix, found by Sashiko AI review).
- Reuse the existing now timestamp instead of a redundant ktime_get().

Changes in v2:
- Move the expire check before ktime_before() (suggested by Bibo Mao)
- Remove the old else-if branch that was one-shot only.
-- 
2.43.0