From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793313456; b=R/L2sppQuIVXqA1qKXVo6Xh34ZzBoygv84e92+T46TkxfqE3ywyBAc/8p51gD5BGQbn8 MZShKBSV7OC1/2Mz6lQnLL9/KPafzniK6C8q4Uqbdg8OObKGc/ZwH3GKkpWhAml9D6Wmz C6Jhj/mWHAKoxzxsvswUu7weYK6LYYpgxVc998mMnEryzelD6BpO95hUZu4fD0Pvh/Alf 6A22LnruGufsLtrwCB67Qh39zIEzjHk6msv089YGf5MSP/sWRTRiJSVtT54UXVaiz48V0 CVF3ju/E21KX1jcjyaxM6V8hRqxfneZPY8UEtsp9OB+YiM0VbiV0ne6lYaQ3/2f63YQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793313456; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: MIME-Version:Content-Transfer-Encoding; bh=mKrWZCN7bhp2Kvdl8I4kjDYiCBb+949tmswQO8VAvTA=; b=tibZQ0ERJ01qGYBnU9v5xzOCxfF1EZBCVToXut9AN7V8y6wYQSOFYg9qk5HG5j6TNfRd btj9qzTyG68KvX8SqfS3t42blXhng5/2a9NQYgjynCF0ySzDyqcrL5FLJHp4c1fL3WSBS jNcrPp/CPnvHUF+Y9PcVpnvRHsgEp9MJqiIw710fqupNxRPRiMfbXfqpaL3ToD64UXnbK eeeLhYxBSjpTweAuW4mpS2yI+kgzjS/MoQ1Dixo3+WiFveP3YR0f05IbQzpMJWqq4FLgE ur95M1GIje161lZtXBcpuTVTceN7xSYEWxf9nvQBHLlKE7MxLSE4dNCT3RH/FFuizpA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=nXmsSlpj; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9CEE5606A32D for ; Thu, 29 Oct 2026 22:37:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=nXmsSlpj Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0DFE81F031EA; Thu, 29 Oct 2026 22:37:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793313455; bh=mKrWZCN7bhp2Kvdl8I4kjDYiCBb+949tmswQO8VAvTA=; h=From:To:Cc:Subject:Date; b=nXmsSlpjH7E+65z9L7TqoP/9cU8rX0dkYF9YC5KnTz/qOvjECeM0AYRPpj1dKRzib iCPbBeb1igfDNqS7Ic3UKL2aWRAkjp9oCiUAsznc6K3i7H2PBWvVg2QfYMwKcvMS5g y1odxhP+PHrNqPch89zIAazAjCKGWBICyI97IsaH1xlzXIv5SQUdC/hfD3+7jUX1M+ LT4N+geN62RvwfiDloPc4+a6s/bW3zfV3UHIsGUcdIr7MMM1fj2SshuMGTySlYEChs v/t6jYcwxLMFe/S/o0xPdULIYCrB9/+Q5fBDj91hjNIcVFt0p/eXc+a0wpV9xo3vYw bQ7KWPe9uFJnw== From: Oliver Upton To: kvmarm@lists.linux.dev Cc: Marc Zyngier , Joey Gouly , Suzuki K Poulose , Zenghui Yu , Wei-Lin Chang , Steffen Eiden , Fuad Tabba , Oliver Upton Subject: [PATCH v3 0/5] KVM: arm64: TCR_EL2 fixes, FEAT_LPA2=NI for NV Date: Thu, 29 Oct 2026 15:37:27 -0700 Message-ID: <20261029223732.103785-1-oupton@kernel.org> X-Mailer: git-send-email 2.47.3 X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit I went ahead and grabbed Wei-Lin's series [1] that added TCR_EL2 sanitisation since it makes life quite a bit easier for computing an effective TCR_EL1. Tested on Neoverse-V2 running a guest with FEAT_E2H0. v2 -> v3: - Collect R-b's from Joey - Add patch "KVM: arm64: nv: Correctly compute the effective TCR_EL1 for nVHE TCR_EL2", itself picking up fixes for forwarding missing fields into the effective TCR_EL1 value (Fuad) [*]: https://lore.kernel.org/all/20260917214215.74135-1-weilin.chang@arm.com/ Marc Zyngier (1): KVM: arm64: Reset TCR_EL2 according to guest's E2H mode Oliver Upton (1): KVM: arm64: nv: Correctly compute the effective TCR_EL1 for nVHE TCR_EL2 Wei-Lin Chang (3): KVM: arm64: nv: Don't advertise FEAT_LPA2 for guest stage-1 arm64: sysreg: Add TCR_EL2 to sysreg infrastructure KVM: arm64: Convert TCR_EL2 to config-driven sanitisation arch/arm64/include/asm/kvm_arm.h | 13 --- arch/arm64/include/asm/kvm_host.h | 2 +- arch/arm64/include/asm/kvm_nested.h | 38 +++++++-- arch/arm64/include/asm/sysreg.h | 1 - arch/arm64/kvm/config.c | 112 +++++++++++++++++++++++++ arch/arm64/kvm/nested.c | 15 ++++ arch/arm64/kvm/sys_regs.c | 10 ++- arch/arm64/tools/sysreg | 125 ++++++++++++++++++++++++++++ 8 files changed, 291 insertions(+), 25 deletions(-) base-commit: 9e9283e4c941e806d2735f09b66763487bc48b50 -- 2.47.3