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=1793264728; b=Jeamo7XovM5rmWfFNMtixmv/ixhFjOukLhdYh4yZGMgQWAH+cBsPrYAApgul7GrEQJaN fzb/vZ2fb2T90EWfXtsBwAoF6jjOzlt87ms36XQACpCf/uj3Dm2k9AeccZyPpJMq3P8DA 7U7PQ7LJmzDhf00kUr2M8rwnTsPu4WfclC+CfeATzNHY8OYMOWtg+wDg8MaF7qJPfrkyF s4sFxCBMKjmf+IE7AyeaaG22UNPTK28OvKyrBoFQCDxq3FdxjuJ7PGK0w8WId1OnTRif0 6hjXFaoAPLsMsUT8AOgh5DUZnQpW1zlP6D+Xd1koycNmL0Zbft8bSOaG56xwlDi+6sQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793264728; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: MIME-Version:Content-Transfer-Encoding; bh=bg0Ymif0uoiICiNRdrOrby7zyxhfmv3mM2elfFbvQOQ=; b=sMjPsQTpgcAuykez3Csj9IpSzy0I4oaA98UwiE4eueOb1n+l+kol/JBoR8HTaDIB/L5o f+MU3oOM/iK9KXwc5Vi9LyUs8j8kac+beete1AlMtmUscvffIsw2u6Oq3tYcD2V2LWP76 AV/4cvMW4dqjBQmfwQVQtplT27gVDCa8GDIC/GpFwPRZBx54n8Q3gvjPjQlCQwiomlm/B P849r+mnoPtGUjgGZVciiVOYlmSWT1J5G8XNUWDtzcN9/fIZ5ChVF1AWLPvZw5aedRSOm w+dZXd89TejAzsHnr7UtEOnzWq4o5JsSxUbhCA/FRDJyxSIZ9HdQaCWZRTMKsy71HYw== 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=B5mxlMBC; 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 9AD68606A31A; Thu, 29 Oct 2026 09:05:27 +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=B5mxlMBC Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1D7511F01825; Thu, 29 Oct 2026 09:05:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793264727; bh=bg0Ymif0uoiICiNRdrOrby7zyxhfmv3mM2elfFbvQOQ=; h=From:To:Cc:Subject:Date; b=B5mxlMBChJwT2ir73H4sxdSu3LbmJ1uMQylIcXWhsIrB7mvEuTbwaTQ20Xr4scscG hLedn0FF0g2uMHsxhnzIzybMLvQ/NkI8S78z5GkLtZPHnxcWMGWRNFntpKPZVZmh40 rVBOXSz5evOTOIp1NVdQ5Cuw71K7rgjvYzoENQplL/IwJUtILr+PqhqSi3U5qal6or 7pp56cH5Cmrci8sBz5Zvi1tqrScdya3MJPTtisO8n1aaHCBLVneY9wB7eXm4+4LPjj r4AsdniJTW2ExVSaIr6o9Wgj83rJ33PM8FsvJYxLjW/TVgb8mcjPk8l/SeeqyaKZ7d dpRxTqcGqL3MA== 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 , stable@vger.kernel.org Subject: [PATCH] KVM: arm64: nv: Respect HA when computing translated TCR Date: Thu, 29 Oct 2026 02:05:22 -0700 Message-ID: <20261029090522.64662-1-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 Add the missing forwarding of TCR_EL2.HA to TCR_EL1.HA, which are different bit indices, to ensure that FEAT_HAF actually works for an L1 hypervisor in the EL2 translation regime. Cc: stable@vger.kernel.org Fixes: d5bbb76f4474 ("KVM: arm64: nv: Expose hardware access flag management to NV guests") Signed-off-by: Oliver Upton --- Spinning this off from the HAFDBS series since this fixes an issue with FEAT_HAF which is already supported in NV. arch/arm64/include/asm/kvm_nested.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/kvm_nested.h b/arch/arm64/include/asm/kvm_nested.h index 0f899addafa8..2811ec466d88 100644 --- a/arch/arm64/include/asm/kvm_nested.h +++ b/arch/arm64/include/asm/kvm_nested.h @@ -29,7 +29,8 @@ static inline u64 translate_tcr_el2_to_tcr_el1(u64 tcr) (tcr & TCR_EL2_TG0_MASK) | (tcr & TCR_EL2_ORGN0_MASK) | (tcr & TCR_EL2_IRGN0_MASK) | - (tcr & TCR_EL2_T0SZ_MASK); + (tcr & TCR_EL2_T0SZ_MASK) | + ((tcr & TCR_EL2_HA) ? TCR_HA : 0); } static inline u64 translate_cptr_el2_to_cpacr_el1(u64 cptr_el2) base-commit: 9e9283e4c941e806d2735f09b66763487bc48b50 -- 2.47.3