From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=95.215.58.2 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794213168; b=sA3cKm38WqhY5Rwbc7CgEOrdfvOLRmrW+M0Kttp0J5KbK/wseb9BuNMaxFln04w4nFxh f/bEaG1+fj+xlB7N0aI1xHTdacemO8vVEwf1t+j9ajC+OCNcq8c3SV3gx5tRebFAXU8WP FAxB470bbwcafioK6h7xpnPhIC5mkzf9QwQLpyIuTuBOUG4hIB6ivJyEAYwdcwfpltf71 Imxq0TiiVnzUrlztgjrHYjZTEvMDLE2jJd6mqJTij4zSeBHLO3onhAoENCrz6VAL2k9Q6 /TFyLT0SXTQPV2NJGvu54FkM+t+qxzuFG8ogLSofNNRyfzsK6uqEY9HbJmhwrAZNcEg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794213168; 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=aLe3gOKk8Xbd6SflA+4BJb2vIfzI2LVh0SwH9FNaU7aaEtnCY6r9j2yQw/Yoh1dg7sCR yR8i79pUs1C6vVs8IOyG0ShHYXHXDD15fQjhbB23NX/xCTJ0189nDPDN8Sn8QDqPM5R4s 9uDDyYk7xGFFMJXbM/RGAmQ+ltyIuB+1IsZkzMixwMcEvLgvt+TB0Fnqjmipb3z5kDmk7 RWskDhKMAbU1zrKheCgXbgdalZixqiyH7umX3eMmNhuvcUiiPcdJpfkrOC1mZxUVLUT81 8gEkqIBX3olx1utlLG+UGXhn/DLwIrjEpU2Buq1XJGMafL+HymBCCzyleT9y9L+o12A== 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=95.215.58.2 Received: from mta1.migadu.com (out-2.mta1.migadu.com [95.215.58.2]) (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 1B52C606EE85 for ; Mon, 9 Nov 2026 08:32:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 1B52C606EE85 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: kvm@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: kvm@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: kvm@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