mbox series

[v3,0/3] RISC-V: KVM: Fix hugepage mapping handling during dirty logging

Message ID 20260316141234007qSAOsesu2cSQsj-LA-qq3@zte.com.cn
Headers show
Series RISC-V: KVM: Fix hugepage mapping handling during dirty logging | expand

Message

Wang Yechao March 16, 2026, 6:12 a.m. UTC 
From: Wang Yechao <wang.yechao255@zte.com.cn>

This series fixes an issue where dirty logging fails to work correctly
with huge pages.

v2 -> v3:
  - patch01: Add reference to the specific commit being fixed
  - patch02: Fill the page table entry before replacing the ptep value
  - patch03: Add handling for dirty logging disable to avoid memory leak
  - Link to v2:
  https://lore.kernel.org/linux-riscv/20260304172139131ChDubMSpGDUB03lY4UCbK@zte.com.cn/T/#t

v1 -> v2:
  - fix the lost write protection on huge pages
  - split huge pages before handling the write protection fault.

  - Link to v1:
  https://lore.kernel.org/linux-riscv/20260226172245358qVZavIykLL2QC0KoqTO-I@zte.com.cn/T/#u

Wang Yechao (3):
  RISC-V: KVM: Fix lost write protection on huge pages during dirty logging
  RISC-V: KVM: Allow splitting huge pages to arbitrary level
  RISC-V: KVM: Split huge pages during fault handling for dirty logging

 arch/riscv/include/asm/kvm_gstage.h |   4 +
 arch/riscv/kvm/gstage.c             | 132 +++++++++++++++++++++++++++-
 2 files changed, 132 insertions(+), 4 deletions(-)