linux-kernel - [RFC PATCH 0/2] RISC-V: KVM: Pointer Masking Support

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Message-ID: <20250111004702.2813013-1-samuel.holland@sifive.com>
Date: Fri, 10 Jan 2025 16:46:57 -0800
From: Samuel Holland <samuel.holland@...ive.com>
To: Anup Patel <anup@...infault.org>,
	Atish Patra <atishp@...shpatra.org>,
	kvm-riscv@...ts.infradead.org,
	linux-riscv@...ts.infradead.org
Cc: Samuel Holland <samuel.holland@...ive.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Palmer Dabbelt <palmer@...belt.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [RFC PATCH 0/2] RISC-V: KVM: Pointer Masking Support

This series adds support for pointer masking in VS-mode inside KVM
guests using the SBI FWFT extension. This series applies on top of
Clément's "riscv: add SBI FWFT misaligned exception delegation support"
series[1], which adds the necessary infrastructure.

[1]: https://lore.kernel.org/linux-riscv/20250106154847.1100344-1-cleger@rivosinc.com/


Samuel Holland (2):
  RISC-V: KVM: Fix inclusion of Smnpm in the guest ISA bitmap
  RISC-V: KVM: Add support for SBI_FWFT_POINTER_MASKING_PMLEN

 arch/riscv/include/asm/kvm_vcpu_sbi_fwft.h |  2 +
 arch/riscv/kvm/vcpu_onereg.c               | 84 ++++++++++++++--------
 arch/riscv/kvm/vcpu_sbi_fwft.c             | 70 +++++++++++++++++-
 3 files changed, 124 insertions(+), 32 deletions(-)

-- 
2.47.0