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Fri, 23 May 2025 06:08:05 -0700 (PDT) Received: from localhost ([2a02:8308:a00c:e200:be84:d9ad:e5e6:f60b]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a35ca8874bsm26894531f8f.67.2025.05.23.06.08.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 May 2025 06:08:05 -0700 (PDT) Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Fri, 23 May 2025 15:08:04 +0200 Message-Id: From: =?utf-8?q?Radim_Kr=C4=8Dm=C3=A1=C5=99?= Subject: Re: [PATCH v8 14/14] RISC-V: KVM: add support for SBI_FWFT_MISALIGNED_DELEG Cc: "Samuel Holland" , "Andrew Jones" , "Deepak Gupta" , "Charlie Jenkins" , "Atish Patra" , "linux-riscv" To: =?utf-8?q?Cl=C3=A9ment_L=C3=A9ger?= , "Paul Walmsley" , "Palmer Dabbelt" , "Anup Patel" , "Atish Patra" , "Shuah Khan" , "Jonathan Corbet" , , , , , , References: <20250523101932.1594077-1-cleger@rivosinc.com> <20250523101932.1594077-15-cleger@rivosinc.com> In-Reply-To: <20250523101932.1594077-15-cleger@rivosinc.com> 2025-05-23T12:19:31+02:00, Cl=C3=A9ment L=C3=A9ger : > SBI_FWFT_MISALIGNED_DELEG needs hedeleg to be modified to delegate > misaligned load/store exceptions. Save and restore it during CPU > load/put. How do you plan to access the value of hedeleg & MIS_DELEG from userspace? (I think that modeling medeleg in ONE_REG is a clean solution.) Thanks. 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