[PATCH v3 0/3] riscv: fix timer update hazards on RV32

Naohiko Shimizu naohiko.shimizu at gmail.com
Sun Jan 4 05:59:35 PST 2026


This patch series fixes timer register update hazards on RV32 for
clocksource, KVM, and suspend/resume paths by adopting the 3-step
update sequence recommended by the RISC-V Privileged Specification.

Changes in v3:
- Dropped redundant subject line from commit descriptions.
- Added Fixes tags for all patches.
- Moved Signed-off-by tags to the end of commit messages.

Changes in v2:
- Added detailed architectural background to commit messages.
- Added KVM and suspend/resume cases.

Naohiko Shimizu (3):
  riscv: clocksource: Fix stimecmp update hazard on RV32
  riscv: kvm: Fix vstimecmp update hazard on RV32
  riscv: suspend: Fix stimecmp update hazard on RV32

 arch/riscv/kernel/suspend.c       | 3 ++-
 arch/riscv/kvm/vcpu_timer.c       | 6 ++++--
 drivers/clocksource/timer-riscv.c | 3 ++-
 3 files changed, 8 insertions(+), 4 deletions(-)

-- 
2.39.5




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