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 BE6F44CEE52; Thu, 15 Oct 2026 13:23:54 +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=1792070635; cv=none; b=odKQn5kHbB1/a9xj08C8e4iAZ3gRzTRejunEpulconsHsUDYFjvQxGmj9aB/DxJi+9et6D7v9P+y8O8xlGZFfKN/uiaPw2NlMOIlUocjzINIGdody2AMNWBESM5HF+y/OqKRMLNdf5WugAujTKvg9Ea0EHirNVSI5k8AJMAWq5o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792070635; c=relaxed/simple; bh=W7dmmoeYfXU9p7GmPCCSxg8VG0+Bfz4uridye7MlSN8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=WEaAdIzaIUYIUgXvnHSswAxsVMC91u+gI0IlXVHPk1x54tivd0jwK37d1LVmIOPIMKcwWvTC9wAuD6qhyFfCqnWjCuMntWS+I24ReWHyjXj9V23iOffkf7dG8K2gZq6hE0dDL9iw3zuyJe5vtIYzogS1jheTMICcE7MWrTK6Q00= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VA/+0ZyT; 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="VA/+0ZyT" 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> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260903160623.315525-2-alexandru.elisei@arm.com> 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