From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 46BD9C982DF for ; Fri, 18 Sep 2026 16:15:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:To:From:Reply-To:Content-Type:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=/mfIbyB+KiTZj/ummjBpFJweWa08M4vk6DdFzOZra/Y=; b=tY4bDfXFvhxA3t 4n3kVThEr2oK3om2/om/zAM4MtigTTGujt7GVsWALsicVufw3vsbWRQMceAUJ+15YNQsakxxssr5D lGRT21ffY4j3zR4dDKvGDsPWtK6ZokbC3DYKUVbNpVydcViorMMs2DGaSa6YZ1YKYWPTpeYuWJiyI xVi7MVV/uQcHmNvJgotHiQ93MhggctENpjz7uXacgIaEx934Wyx0z2TgAhf3dRJs5tnaoejD+MNGS w7wpOO3S5osJxcuzT7LvNaazTm2ioW6zu6KxvWYooCqf+7rpcAY5fF85qIy5OQ392PEnokwaKa0hq VrtVsFz5gODLPGZaMptw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x7bFa-0000000Ezu2-2RuV; Fri, 18 Sep 2026 16:15:46 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x7bFG-0000000Ezd1-3c0a for linux-arm-kernel@lists.infradead.org; Fri, 18 Sep 2026 16:15:26 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 4F86C602C5; Fri, 18 Sep 2026 16:15:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1B4161F00898; Fri, 18 Sep 2026 16:15:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789748126; bh=/mfIbyB+KiTZj/ummjBpFJweWa08M4vk6DdFzOZra/Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=OET/BcYvAijGn3Z+EJenGnwlssJv3P030zZZexQ37E4gCoO2NAKf5wH6uvLZPo3V0 7sX8CHwaxf/9tM8pxb83Bmjqqq1dZUJeh2zuw/S0YI/LXvTjzg62MFByp7SZc/NPCO DOjfIMzKVMiMvGZ1p1fFPIPs8ujtGd7Hh5DAJVPRG5Dvf8re2hONSRyr39h5iEzI1v QYRmOdU3ouaAC9sSpHV1y0U0Ojp0V9+P1+oBFSVBaQ7cl4CteT9srIcwHV+t1lZCK0 aqWDlJZCo0OZTTJTCpXKQzV0NeYONwzvmW8tXmYCKAWN8XAVoFioWCCqfe8rtPd6Mv +MlSxVi4AOaRw== From: Will Deacon To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 20/21] arm64: tracing: Advertise a mode of EL1t in synthetic kernel regs Date: Fri, 18 Sep 2026 17:14:04 +0100 Message-ID: <20260918161407.2300-21-will@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260918161407.2300-1-will@kernel.org> References: <20260918161407.2300-1-will@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Vladimir Murzin , Arnd Bergmann , Catalin Marinas , Linus Walleij , linux-kernel@vger.kernel.org, Mostafa Saleh , Marc Zyngier , David Hildenbrand , Lorenzo Stoakes , Oliver Upton , Will Deacon , Ard Biesheuvel Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org When synthesising a kernel regs structure for ftrace or perf, advertise a mode of EL1t to reflect the mode in which the kernel runs for the vast majority of the time. Signed-off-by: Will Deacon --- arch/arm64/include/asm/ftrace.h | 4 ++-- arch/arm64/include/asm/perf_event.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm64/include/asm/ftrace.h b/arch/arm64/include/asm/ftrace.h index 1621c84f44b3..d55a019cdf0a 100644 --- a/arch/arm64/include/asm/ftrace.h +++ b/arch/arm64/include/asm/ftrace.h @@ -153,7 +153,7 @@ ftrace_partial_regs(const struct ftrace_regs *fregs, struct pt_regs *regs) regs->pc = afregs->pc; regs->regs[29] = afregs->fp; regs->regs[30] = afregs->lr; - regs->pstate = PSR_MODE_EL1h; + regs->pstate = PSR_MODE_EL1t; return regs; } @@ -161,7 +161,7 @@ ftrace_partial_regs(const struct ftrace_regs *fregs, struct pt_regs *regs) (_regs)->pc = arch_ftrace_regs(fregs)->pc; \ (_regs)->regs[29] = arch_ftrace_regs(fregs)->fp; \ (_regs)->sp = arch_ftrace_regs(fregs)->sp; \ - (_regs)->pstate = PSR_MODE_EL1h; \ + (_regs)->pstate = PSR_MODE_EL1t; \ } while (0) int ftrace_regs_query_register_offset(const char *name); diff --git a/arch/arm64/include/asm/perf_event.h b/arch/arm64/include/asm/perf_event.h index ee45b4e77347..b3e7c24a5aab 100644 --- a/arch/arm64/include/asm/perf_event.h +++ b/arch/arm64/include/asm/perf_event.h @@ -17,7 +17,7 @@ (regs)->pc = (__ip); \ (regs)->regs[29] = (unsigned long) __builtin_frame_address(0); \ (regs)->sp = current_stack_pointer; \ - (regs)->pstate = PSR_MODE_EL1h; \ + (regs)->pstate = PSR_MODE_EL1t; \ } #endif -- 2.55.0.1082.g2b9226bbc0-goog