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Fri, 16 Oct 2026 14:09:18 -0700 (PDT) Received: from localhost ([2600:1700:220:5c80:6dfb:85d9:d6b:fdcb]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-679b1e11207sm1547350d50.8.2026.10.16.14.09.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2026 14:09:18 -0700 (PDT) Date: Fri, 16 Oct 2026 16:09:17 -0500 From: Andy Chiu To: Radim =?iso-8859-1?Q?Krcm=E1r?= Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Paul Walmsley , Palmer Dabbelt , Alexandre Ghiti , Samuel Holland , Andy Chiu , Guodong Xu , Zong Li , Charlie Jenkins Subject: Re: [PATCH 3/6] riscv: hwprobe: Report Zicfilp and Zicfiss only when available Message-ID: References: <20261006075303.205216-1-radim.krcmar@oss.qualcomm.com> <20261006075303.205216-4-radim.krcmar@oss.qualcomm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20261006075303.205216-4-radim.krcmar@oss.qualcomm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261016_140920_050544_78ABECFB X-CRM114-Status: GOOD ( 10.51 ) X-BeenThere: linux-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="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Tue, Oct 06, 2026 at 09:53:00AM +0200, Radim Krcm=E1r wrote: > User-mode use of Zicfilp and Zicfiss requires senvcfg.LPE and > senvcfg.SSE, respectively, which we set only when is_user_lpad_enabled() > and is_user_shstk_enabled() (CONFIG_RISCV_USER_CFI, the extension on all > harts, and not disabled by riscv_nousercfi). hwprobe reports the > extensions from the per-hart ISA bitmaps alone, so it can advertise > extensions that are always disabled in user-mode. > = > Report correct environment to user-mode. > = > The changes to arch/riscv/include/asm/usercfi.h avoid > IS_ENABLED(CONFIG_RISCV_USER_CFI) guards in the conditions. > = > Fixes: 30c3099036a9 ("riscv/hwprobe: add zicfilp / zicfiss enumeration in= hwprobe") > Signed-off-by: Radim Krcm=E1r Reviewed-by: Andy Chiu _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv