From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-230.mta1.migadu.com (out-230.mta1.migadu.com [95.215.58.230]) (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 5F74F1C26 for ; Wed, 20 Sep 2023 08:01:49 +0000 (UTC) X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1695196907; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=MLW7qwdJIvj48Ety8MOzco+OBQsuiHw84jgrxmlkBac=; b=l2IgLoEqC/yOBo3Y5qEWPHQFyk0P8rAUR+VVbIDFcNfvcfqJaJN30zb2w511oSCcn1yONr EK9Z89DSDG9VbxGJKPjiUQiCC2zG9MRAhnAzmsA/NOUcwot8DT1+2o5IZLIDEzojmu/GUj WJLfDeXFG1wKtwR3dGVEHWKEUto/hVA= From: Oliver Upton To: kvmarm@lists.linux.dev Cc: kvm@vger.kernel.org, Marc Zyngier , James Morse , Suzuki K Poulose , Zenghui Yu , Will Deacon , Catalin Marinas , linux-arm-kernel@lists.infradead.org, Gavin Shan , Oliver Upton Subject: [PATCH 0/2] KVM: arm64: Address soft lockups due to I-cache CMOs Date: Wed, 20 Sep 2023 08:01:31 +0000 Message-ID: <20230920080133.944717-1-oliver.upton@linux.dev> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT Small series to address the soft lockups that Gavin hits when running KVM guests w/ hugepages on an Ampere Altra Max machine. While I absolutely loathe "fixing" the issue of slow I-cache CMOs in this way, I can't really think of an alternative. Oliver Upton (2): arm64: tlbflush: Rename MAX_TLBI_OPS KVM: arm64: Avoid soft lockups due to I-cache maintenance arch/arm64/include/asm/kvm_mmu.h | 37 ++++++++++++++++++++++++++----- arch/arm64/include/asm/tlbflush.h | 8 +++---- 2 files changed, 35 insertions(+), 10 deletions(-) base-commit: ce9ecca0238b140b88f43859b211c9fdfd8e5b70 -- 2.42.0.459.ge4e396fd5e-goog