From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2B4BF443C25 for ; Wed, 30 Sep 2026 20:53:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790801601; cv=none; b=d2q19U0ixcdwQyT0EPAViDXqRXDNHo/yT4l2VaVwKqsZPVV1ImrqUYkxxqa1qRTrxkFl4zebUCPReJwK/48E2onGX0PFugOZH8Mm62NjJloioFFEUAKfa2/d6umHHDVg3vOOb/HRIKQMHBZihNm8dpCy6iFMH45g+880893PdfM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790801601; c=relaxed/simple; bh=AlJQFznlbkoz2NB5Wpaexda128WQ5QBQu/v0eHnZs6Y=; h=MIME-Version:References:In-Reply-To:From:Date:Message-ID:Subject: To:Cc:Content-Type; b=kXABE89JlWknox/auZg1ObBQ4AbN5m7wPCgvEdd/OrvjL97lN+HP/1ay2+Exl8jqvMvGJGGynXmPVZ/qtJOgFoQ3eRMEOrL7YPJZn3gU0fOdVoUN9Qv2EBapaZIQ6FXkRkSvskvLErHjHTUX4r0+aTtblhZagHkS176C/xlVCao= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BVmagdbN; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="BVmagdbN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DF3E61F00899 for ; Wed, 30 Sep 2026 20:53:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790801599; bh=AlJQFznlbkoz2NB5Wpaexda128WQ5QBQu/v0eHnZs6Y=; h=References:In-Reply-To:From:Date:Subject:To:Cc; b=BVmagdbN57QvAbQeqfC+GmFIdYUEESL3N/SkoF8vjC683WVmFusYKnaUgbXpcVGTz INwLXs83HfOYPzWhzs2gf2pcBgKX6QJT34JaE2mDfgswnwxTTGI+ixYbHEvR7uaGKg EjQywSZhbNvefhVt6G/Gn608ShHCmBbCmdJNL7juBLxRF9cGHevhAXOMfPmwjWQCSX UOkKbx0u17wdbNVVjwi8X1obCbk4Ad+RhZ3Qp8KAVDgN5w2fnDdPPaPQYQ7zvLaHFf Pxo1GH4eCBfFNTuar7vuFPRWxlUNhSMrWRYCm5h7lw6qCvJmBuS9h27wQXLnAPVfAr EVYrBYkLcsW2A== Received: by mail-lf2-f13.google.com with SMTP id 2adb3069b0e04-5ba4415869aso60260e87.2 for ; Wed, 30 Sep 2026 13:53:19 -0700 (PDT) X-Forwarded-Encrypted: i=1; AKwUvByYV8ESixFkAOFi3y8juPYYNGR7bTppepmi5JK9M1eWbIkdKgLs8bp0mW2wdeLq949ShFrjXDOiy+2uznA=@vger.kernel.org X-Gm-Message-State: AFq9FYLKWX1bMpXd0k5gT8eWFLmzEMPf7weLelVlTKoRXKVCNsyTfC4G RQPUhLdMRni5JcMwGIoCw/bm9reIevPGNRe2UR9zcX0VrJhB3EUuPIAZXk66fXaZLLo73l5kUX5 St5sUGR+stdRuaroWQe1fKy9pplFzM2g= X-Received: by 2002:a05:6512:3090:b0:5ba:4185:4bf9 with SMTP id 2adb3069b0e04-5ba41854c7emr882318e87.27.1790801598673; Wed, 30 Sep 2026 13:53:18 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20260918161407.2300-1-will@kernel.org> <20260918161407.2300-5-will@kernel.org> In-Reply-To: <20260918161407.2300-5-will@kernel.org> From: Linus Walleij Date: Wed, 30 Sep 2026 22:53:06 +0200 X-Gmail-Original-Message-ID: X-Gm-Features: AclHuK9IG9N4XO277gRjxi0xMHrF-zX5RSGpnkGUAhr9NCtSwx9DQDyHNN47ev8 Message-ID: Subject: Re: [PATCH v2 04/21] arm64: bpf: Add support for generating reads of TPIDRRO_EL0 To: Will Deacon Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Arnd Bergmann , Ard Biesheuvel , Ada Couprie Diaz , David Hildenbrand , Catalin Marinas , Vladimir Murzin , Mark Rutland , Mostafa Saleh , Lorenzo Stoakes , Oliver Upton , Marc Zyngier Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, Sep 18, 2026 at 6:14=E2=80=AFPM Will Deacon wrote= : > In preparation for storing 'current' in TPIDRRO_EL0, add support for the > instruction encoding of "MRS Rt, TPIDRRO_EL0" to the BPF JIT. > > Cc: Mark Rutland > Signed-off-by: Will Deacon Add to the commit message something like, "so that BPF programs can get a pointer to current."? Reviewed-by: Linus Walleij Yours, Linus Walleij