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 04E7DCC6B34 for ; Thu, 15 Oct 2026 13:24:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=+eY/8SzCL1ecc1E0dSwRAQE+0x44i8QCx5GpklEFvyk=; b=yKTAM92UcBdFBK+/VEaHgpXHhS eA4OB2APBHYSaGrEY+qNUQBfwKSvcU7a3GMb3d5/dwQHWrZKfTQWeweBKze3EXlhlk9Sz+aRzvOGP ZHBJgB2dkSopA4bgv0W0VZZRXXl9uBeqycp49u7hDCef8cahj7w/lh4Xdf3WCrady76sYsMbjkF8G a3dbwVDUH6tPbc/FXdCCcTKLkckIDiV2urabZZ4ZhBaC88GsNYyFF17Ybszyqrv0X5IilHIsLXe/T 8rdWlDA7xCOkqsqJHoNKP5DWBjJAunVpfgYZKaXFlcPv3frr2HLnHSMd+pcvMf49M/VHq7v5PqsDI qZtQHFxA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xHLR8-00000000FIF-1vQJ; Thu, 15 Oct 2026 13:23:58 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xHLR5-00000000FHt-2e7S for linux-arm-kernel@lists.infradead.org; Thu, 15 Oct 2026 13:23:56 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id E31FC60120; Thu, 15 Oct 2026 13:23:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 920001F000C4; Thu, 15 Oct 2026 13:23:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792070634; bh=+eY/8SzCL1ecc1E0dSwRAQE+0x44i8QCx5GpklEFvyk=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=VA/+0ZyT1W/3GVjxBq/7MbPKIu8VyMVho+se3aTX141PFcM5oRFgngzOxri2VltNG unQOfMVuVV5vlGLFeHUJ7hMTAiAnRVeQg6Wucwn5hGIpwLntLb+zTwpjpQSzUO66VJ z0AP1U+H/PZBgS8EDZMGZn46xuncawpSQ7l3euLYagD8thprcM9jJoHkzXGaeZwSUT zZZilFktQbjJGGoITO7eDDdq12O+aXr9/XFfKvjRJ2VmQk9PELyoYI4rqhnFqrkNRE +eZUfj3YjybTTZN5JO661blh7+kSnrFuccsXZLWyfaFw4TAOHwnpDKUvczs0V1zYzS j1+9h6bgp+Vbw== Date: Thu, 15 Oct 2026 14:23:47 +0100 From: "Lorenzo Stoakes (ARM)" To: Alexandru Elisei Cc: maz@kernel.org, oupton@kernel.org, fuad.tabba@linux.dev, joey.gouly@arm.com, seiden@linux.ibm.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, will@kernel.org, mark.rutland@arm.com, linux-perf-users@vger.kernel.org, catalin.marinas@arm.com, james.clark@linaro.org Subject: Re: [RFC PATCH v7 01/28] arm64/sysreg: Add the nVM field to PMBLIMITR_EL1 Message-ID: References: <20260903160623.315525-1-alexandru.elisei@arm.com> <20260903160623.315525-2-alexandru.elisei@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260903160623.315525-2-alexandru.elisei@arm.com> 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Sep 03, 2026 at 05:05:56PM +0100, Alexandru Elisei wrote: > Define PMBLIMITR_EL1.nVM, to be used by KVM. I see that is defined in [0]. > > Signed-off-by: Alexandru Elisei LGTM, matches the hardware spec and in line with other entries in the file, so: Reviewed-by: Lorenzo Stoakes (ARM) > --- > arch/arm64/tools/sysreg | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg > index 94bf065c8ac7..a11a968eb707 100644 > --- a/arch/arm64/tools/sysreg > +++ b/arch/arm64/tools/sysreg > @@ -3106,7 +3106,9 @@ EndSysreg > > Sysreg PMBLIMITR_EL1 3 0 9 10 0 > Field 63:12 LIMIT > -Res0 11:6 > +Res0 11:8 I can see from the diagram in the field descriptions section of [0] that 11->8 is res0... > +Field 7 nVM ...and nVM is defined at bit 7... > +Res0 6 ...and res0 is at 6. > Field 5 PMFZ > Res0 4:3 > Enum 2:1 FM I also confirmed the existing fields are all correct too. > -- > 2.43.0 > > -- Cheers, Lorenzo [0]:https://support.arm.com/documentation/ddi0601/2026-09/AArch64-Registers/PMBLIMITR-EL1--Profiling-Buffer-Limit-Address-Register?lang=en