| From: |
| Jisheng Zhang <jszhang-AT-kernel.org> |
| To: |
| Paul Walmsley <paul.walmsley-AT-sifive.com>, Palmer Dabbelt <palmer-AT-dabbelt.com>, Albert Ou <aou-AT-eecs.berkeley.edu>, Anup Patel <anup-AT-brainfault.org>, Atish Patra <atishp-AT-atishpatra.org>, Sebastian Andrzej Siewior <bigeasy-AT-linutronix.de>, Thomas Gleixner <tglx-AT-linutronix.de>, Steven Rostedt <rostedt-AT-goodmis.org> |
| Subject: |
| [PATCH v2 0/5] riscv: add PREEMPT_RT support |
| Date: |
| Thu, 01 Sep 2022 01:59:15 +0800 |
| Message-ID: |
| <20220831175920.2806-1-jszhang@kernel.org> |
| Cc: |
| linux-riscv-AT-lists.infradead.org, linux-kernel-AT-vger.kernel.org, kvm-AT-vger.kernel.org, kvm-riscv-AT-lists.infradead.org |
| Archive-link: |
| Article |
This series is to add PREEMPT_RT support to riscv:
patch1 adds the missing number of signal exits in vCPU stat
patch2 switches to the generic guest entry infrastructure
patch3 select HAVE_POSIX_CPU_TIMERS_TASK_WORK which is a requirement for
RT
patch4 adds lazy preempt support
patch5 allows to enable PREEMPT_RT
I assume patch1, patch2 and patch3 can be reviewed and merged for
riscv-next, patch4 and patch5 can be reviewed and maintained in rt tree,
and finally merged once the remaining patches in rt tree are all
mainlined.
Since v1:
- send to related maillist, I press ENTER too quickly when sending v1
- remove the signal_pending() handling because that's covered by
generic guest entry infrastructure
Jisheng Zhang (5):
RISC-V: KVM: Record number of signal exits as a vCPU stat
RISC-V: KVM: Use generic guest entry infrastructure
riscv: select HAVE_POSIX_CPU_TIMERS_TASK_WORK
riscv: add lazy preempt support
riscv: Allow to enable RT
arch/riscv/Kconfig | 3 +++
arch/riscv/include/asm/kvm_host.h | 1 +
arch/riscv/include/asm/thread_info.h | 7 +++++--
arch/riscv/kernel/asm-offsets.c | 1 +
arch/riscv/kernel/entry.S | 9 +++++++--
arch/riscv/kvm/Kconfig | 1 +
arch/riscv/kvm/vcpu.c | 18 +++++++-----------
7 files changed, 25 insertions(+), 15 deletions(-)
--
2.34.1
