From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=91.218.175.218 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794213169; b=EilekHmuLPP99tnYYG5ZlaFA/9tK6dqD0zRlLeBKiDR+a9pkArT8O2M3VFMuY3Tzmk3t PflCKr5+oicSiLLqJVHIq5f9KAjlvZ9wuiFjBcVfTRC9K7QLLrJv9oVb8M2+ApQL6w7P4 gbdmMPfVkKb7DCWRMznUYCcP9AhTAYv1mq9gIJGwi1/gDcuqO+DQkaN5kTrDIDfJnT2tE TCCbdgQFsRtUe7NlMw35zpVqHNv7opKHA35VjXRNwwWkPxojWF1sdpgU9rolAbmATyveJ 8Vw54A+vHz2Pu996uEyiL8TLwJoermw+LPeiGXp5gOstAN9ZWns0WJOMHkLVa/m/Wmg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794213169; h=DMARC-Filter:X-Envelope-To:DKIM-Signature:X-Envelope-To:Received: X-Mizu-Trace-ID:X-Migadu-Flow:From:To:Cc:Subject:Date:Message-ID: X-Mailer:In-Reply-To:References:MIME-Version: Content-Transfer-Encoding; bh=bo1WlELU8ik+Rr+Abdwa067G5JksNkxTfxKiETgF/pA=; b=gCs5WBcgiNOOYvd8F7HrmV2SJ6UNFEBe+A3YREn1aZ8xpPDCPDsSRg9lxn7ovAGFbhsq o2YXK2fzObK0HZ7GSKcOmgFpOBfCyQ/8KBCSeU8dXYqcE9Duiz3bmieq8Fhp10psFn6D7 ad3omYRSXTNp5SXanZem39nFJ9tBmWqnhTODqLIjFTtkwQTbnb8cX9sV5MJ0BqsNpiPxh dBiRVcyf5Kb8CXYBz9MZUNHL2sqh2Y2HIwWMUteuCG4SQc3B5k4YdsnB6cQUC3fUwTxTr e6v25Y2qQ7v2CmGuX8pORZUg+UM3qAmvS7kyphCwGwrHqkmAMPZjvITunFFH1VzXbTg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=S9jMCK95; arc=none smtp.remote-ip=91.218.175.218 Received: from mta0.migadu.com (out-218.mta0.migadu.com [91.218.175.218]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E554F606EEB6 for ; Mon, 9 Nov 2026 08:32:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org E554F606EEB6 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, unprotected) header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=S9jMCK95 X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=W7dlvw4NdcdYKD2+I77uCjjseY0CwzVUAyYBCfePwsI=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1794213166; v=1; x=1794817966; b=S9jMCK95QtcoMLf+7bXj5kUxvWLP+RKC3Y6fSEZhcv58cQDtKU+0kt+GkJkWHatYSbGK6KJg IlMykHYdMLqNAxO8qrnGq2hAky39aOsP1i4a8dvo1yfJClM/VQTaVgrJVJY2tDxyGad1qRxefYG LQn5WdLi51Kxu1L9Zo+JDv4k= X-Envelope-To: linux-kernel@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id 909104da5cd6237e; Mon, 09 Nov 2026 08:32:45 +0000 X-Mizu-Trace-ID: 909104da5cd6237e X-Migadu-Flow: FLOW_OUT From: Fuad Tabba To: Marc Zyngier , Oliver Upton , kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org Cc: Joey Gouly , Suzuki K Poulose , Zenghui Yu , Steffen Eiden , Catalin Marinas , Will Deacon , Mark Rutland , Vincent Donnefort , Fuad Tabba , kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 13/16] KVM: arm64: Advertise AFP and RPRES to protected VMs Date: Mon, 9 Nov 2026 08:32:02 +0000 Message-ID: <20261109083205.806619-14-fuad.tabba@linux.dev> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20261109083205.806619-1-fuad.tabba@linux.dev> References: <20261109083205.806619-1-fuad.tabba@linux.dev> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Advertise FEAT_AFP and FEAT_RPRES to protected VMs. Both are controlled through FPCR, which EL2 switches with the rest of the FP state. Signed-off-by: Fuad Tabba --- arch/arm64/kvm/hyp/nvhe/sys_regs.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c index 73ef47a8e687b..08805c7e4e5a7 100644 --- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c +++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c @@ -169,6 +169,7 @@ static const struct pvm_ftr_bits pvmid_aa64mmfr1[] = { MAX_FEAT(ID_AA64MMFR1_EL1, PAN, PAN3), MAX_FEAT(ID_AA64MMFR1_EL1, SpecSEI, IMP), MAX_FEAT(ID_AA64MMFR1_EL1, ETS, IMP), + MAX_FEAT(ID_AA64MMFR1_EL1, AFP, IMP), MAX_FEAT(ID_AA64MMFR1_EL1, CMOW, IMP), FEAT_END }; @@ -212,6 +213,7 @@ static const struct pvm_ftr_bits pvmid_aa64isar1[] = { }; static const struct pvm_ftr_bits pvmid_aa64isar2[] = { + MAX_FEAT(ID_AA64ISAR2_EL1, RPRES, IMP), MAX_FEAT_FUNC(ID_AA64ISAR2_EL1, GPA3, IMP, vm_has_ptrauth), MAX_FEAT_FUNC(ID_AA64ISAR2_EL1, APA3, PAuth, vm_has_ptrauth), MAX_FEAT(ID_AA64ISAR2_EL1, MOPS, IMP), -- 2.47.3