From: guoren@kernel.org
To: guoren@kernel.org, troy.mitchell@linux.dev
Cc: alex@ghiti.fr, anup@brainfault.org, aou@eecs.berkeley.edu,
atish.patra@linux.dev, fangyu.yu@linux.alibaba.com,
guoren@linux.alibaba.com, kvm-riscv@lists.infradead.org,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-riscv@lists.infradead.org, palmer@dabbelt.com,
paul.walmsley@sifive.com
Subject: [PATCH V4 0/3] Fixup & optimize hgatp mode & vmid detect functions
Date: Wed, 20 Aug 2025 23:17:15 -0400 [thread overview]
Message-ID: <20250821031719.2366017-1-guoren@kernel.org> (raw)
In-Reply-To: <CAJF2gTQFWJzHhRoQ-oASO9nn1kC0dv+NuK-DD=JgfeHE90RWqw@mail.gmail.com>
From: "Guo Ren (Alibaba DAMO Academy)" <guoren@kernel.org>
Here are serval fixup & optmizitions for hgatp detect according to the RISC-V Privileged Architecture Spec.
---
Changes in v4:
- Involve ("RISC-V: KVM: Prevent HGATP_MODE_BARE passed"), which
explain why gstage_mode_detect needs reset HGATP to zero.
Changes in v3:
- Add "Fixes" tag.
- Involve("RISC-V: KVM: Remove unnecessary HGATP csr_read"), which
depends on patch 1.
Changes in v2:
- Fixed build error since kvm_riscv_gstage_mode() has been modified.
---
Fangyu Yu (1):
RISC-V: KVM: Write hgatp register with valid mode bits
Guo Ren (Alibaba DAMO Academy) (2):
RISC-V: KVM: Remove unnecessary HGATP csr_read
RISC-V: KVM: Prevent HGATP_MODE_BARE passed
arch/riscv/kvm/gstage.c | 27 ++++++++++++++++++++++++---
arch/riscv/kvm/main.c | 35 +++++++++++++++++------------------
arch/riscv/kvm/vmid.c | 8 +++-----
3 files changed, 44 insertions(+), 26 deletions(-)
--
2.40.1
next prev parent reply other threads:[~2025-08-21 3:17 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-18 5:42 [PATCH V2] RISC-V: KVM: Write hgatp register with valid mode bits fangyu.yu
2025-08-18 6:17 ` Guo Ren
2025-08-18 7:45 ` Guo Ren
2025-08-19 6:44 ` [PATCH] RISC-V KVM: Remove unnecessary HGATP csr_read guoren
2025-08-21 3:17 ` guoren [this message]
2025-08-21 3:17 ` [PATCH V4 1/3] RISC-V: KVM: Write hgatp register with valid mode bits guoren
2025-08-21 3:17 ` [PATCH V4 2/3] RISC-V: KVM: Remove unnecessary HGATP csr_read guoren
2025-08-21 3:17 ` [PATCH V4 3/3] RISC-V: KVM: Prevent HGATP_MODE_BARE passed guoren
2025-08-18 7:10 ` [PATCH V2] RISC-V: KVM: Write hgatp register with valid mode bits Troy Mitchell
2025-08-19 3:47 ` Nutty.Liu
2025-08-21 3:17 ` guoren
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