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Mon, 28 Jul 2025 09:50:23 -0700 (PDT) X-Google-Smtp-Source: AGHT+IF9AiNoGh1fFHMtVXbzZwnzqr6JNT8EGrYNFrd7vLtXR4YXPbw8TBf9CBFH0MTT1XEnkoJVr47qarAG9eP/TTs= X-Received: by 2002:a05:6000:2289:b0:3b4:65d4:8e27 with SMTP id ffacd0b85a97d-3b77664284dmr8049066f8f.29.1753721423075; Mon, 28 Jul 2025 09:50:23 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Paolo Bonzini Date: Mon, 28 Jul 2025 18:50:10 +0200 X-Gm-Features: Ac12FXzkdtm88_4dk2KzyvFSOMEmlVWQkf5aJBT83D16EQ1ktTyFz-doPwtE5M4 Message-ID: Subject: Re: [GIT PULL] KVM/riscv changes for 6.17 To: Anup Patel Cc: Anup Patel , Palmer Dabbelt , Andrew Jones , Atish Patra , Atish Patra , "open list:KERNEL VIRTUAL MACHINE FOR RISC-V (KVM/riscv)" , KVM General , linux-riscv X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: giiHXGo-gsXy3glGQetJvXJcv-p7qUUGDBzP7xJSlng_1753721423 X-Mimecast-Originator: redhat.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250728_095033_443942_447EDA9C X-CRM114-Status: UNSURE ( 8.93 ) X-CRM114-Notice: Please train this message. X-BeenThere: kvm-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kvm-riscv" Errors-To: kvm-riscv-bounces+kvm-riscv=archiver.kernel.org@lists.infradead.org Il lun 28 lug 2025, 18:21 Anup Patel ha scritto: > > Currently, userspace only has a way to enable/disable the entire > SBI FWFT extension. We definitely need to extend ONE_REG > interface to allow userspace save/restore SBI FWFT state. I am > sure this will happen pretty soon (probably next merge window). > > At the moment, I am not sure whether userspace also needs a > way to enable/disable individual features of SBI FWFT extension. > What do you think ? Yes, you do. FWFT extensions are equivalent to CPU extensions. But all this should have been done before including Clement's work. Without it userspace has no way to support FWFT. Drew, I see you have Reviewed-by on the patches; please keep an eye on this stuff. Can you respin with the fix to the SoB line and no FWFT support? Thanks, Paolo > > Regards, > Anup > -- kvm-riscv mailing list kvm-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kvm-riscv