From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-177.mta0.migadu.com (out-177.mta0.migadu.com [91.218.175.177]) (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 DB51F1A3BB1 for ; Fri, 14 Jun 2024 20:12:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.177 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718395964; cv=none; b=QVtebcySVO4fysl9XeganKlBNjlmB3cXDNEn1ktldxUnGIIPzwdyOF/os2W58bha9QXVraa39s/ZRhw/s8lj3l4Zu26lxOn3lh/EUc+m58Qr/15QD+ZAW+hUTsVCzoJWji5I7VT4xMRpfpwBChLy0hBeAQHxEpsMv2TQi94DFAQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718395964; c=relaxed/simple; bh=oZjsCzFCbJSD90TB64x6dRc25o9iotk3a8IHULwKXow=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=NsufDqfax5DrNo8HliH8mSLIuFKYAyU9kkWqR8ZiyOa32dj18PQkKxA7Xpm658k9S/Qo2zadJoobEeEQ2XQynCBWLbMQDc/CWcDoedp1Hkpefn6Q9NL1BTxEzeE//ROc+uKP6pPHdWrV6iKr6uXHOjttaShk5eveg6da6cttU4w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=syFJwenP; arc=none smtp.client-ip=91.218.175.177 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="syFJwenP" X-Envelope-To: kvm@vger.kernel.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1718395959; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=JlzAV0tmpVS9NuQqVdxMb9B5p//nrTOGvG6Ai4IvREs=; b=syFJwenPeeak7hSSMKMLwZL81m+ePkBBHaS88KUSdJ3IhWHgAvtbK4RaSAd5ksvuUokrBu JCaO8vOXIjvQAZux9Bv5r2803jHdojWysiGeEFXCu/St5gty1Fhv2gF++eqRrM9e/Ou7hK rxahccN/Lz37K1s2xv2ayoNXr5bTd+I= X-Envelope-To: coltonlewis@google.com X-Envelope-To: oliver.upton@linux.dev X-Envelope-To: yuzenghui@huawei.com X-Envelope-To: linux-doc@vger.kernel.org X-Envelope-To: catalin.marinas@arm.com X-Envelope-To: corbet@lwn.net X-Envelope-To: linux-kernel@vger.kernel.org X-Envelope-To: suzuki.poulose@arm.com X-Envelope-To: linux-arm-kernel@lists.infradead.org X-Envelope-To: james.morse@arm.com X-Envelope-To: maz@kernel.org X-Envelope-To: will@kernel.org X-Envelope-To: kvmarm@lists.linux.dev X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Oliver Upton To: kvm@vger.kernel.org, Colton Lewis Cc: Oliver Upton , Zenghui Yu , linux-doc@vger.kernel.org, Catalin Marinas , Jonathan Corbet , linux-kernel@vger.kernel.org, Suzuki K Poulose , linux-arm-kernel@lists.infradead.org, James Morse , Marc Zyngier , Will Deacon , kvmarm@lists.linux.dev Subject: Re: [PATCH v6] KVM: arm64: Add early_param to control WFx trapping Date: Fri, 14 Jun 2024 20:12:27 +0000 Message-ID: <171839594069.633615.6902666817551787618.b4-ty@linux.dev> In-Reply-To: <20240523174056.1565133-1-coltonlewis@google.com> References: <20240523174056.1565133-1-coltonlewis@google.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT On Thu, 23 May 2024 17:40:55 +0000, Colton Lewis wrote: > Add an early_params to control WFI and WFE trapping. This is to > control the degree guests can wait for interrupts on their own without > being trapped by KVM. Options for each param are trap and notrap. trap > enables the trap. notrap disables the trap. Note that when enabled, > traps are allowed but not guaranteed by the CPU architecture. Absent > an explicitly set policy, default to current behavior: disabling the > trap if only a single task is running and enabling otherwise. > > [...] Applied to kvmarm/next, thanks! [1/1] KVM: arm64: Add early_param to control WFx trapping https://git.kernel.org/kvmarm/kvmarm/c/0b5afe05377d -- Best, Oliver