From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id CAF5A3358D6; Mon, 23 Feb 2026 17:48:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771868899; cv=none; b=l0URU3AcYNbmfU9GQW+GCo9e+oRGI/IhhB4AG3pM4tw1gM8bELc5x2g2FWeMows2PN9i/UGjzQlSKSVQgyCSk91OD0vsdvcfF9JsWjV/SVY2Vl1bzhcWuVOW4fC7Et1fpA2Y1hX3gtsbvBHmcrGmvan+CmjctGMy1Fw7uJiPldU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771868899; c=relaxed/simple; bh=8polTMh6eK1FoQr28OzdZ9WWQMlS7cjd/YIeHK32uq4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=pedvplgo9g9py3Ftx7saSEOImMvSykT1JFmVQuwXc7mDUiThDzUz4fSFnovJRopZisTM9bNIS3jFFZXxlkHkp9qKpBC1+5bwuGqCKHJLtGywhS3ploQrdPAJBgtWdqFXBQRbwf/l/8Ji4uT9R5SNhe6Fq8Eo4/Ty4LmZPLJQUaU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 055121570; Mon, 23 Feb 2026 09:48:07 -0800 (PST) Received: from e129823.cambridge.arm.com (e129823.arm.com [10.1.197.6]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 9A2243F59E; Mon, 23 Feb 2026 09:48:10 -0800 (PST) From: Yeoreum Yun To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: catalin.marinas@arm.com, will@kernel.org, maz@kernel.org, oupton@kernel.org, miko.lenczewski@arm.com, kevin.brodsky@arm.com, broonie@kernel.org, ardb@kernel.org, suzuki.poulose@arm.com, lpieralisi@kernel.org, yangyicong@hisilicon.com, joey.gouly@arm.com, yuzenghui@huawei.com, yeoreum.yun@arm.com Subject: [PATCH v13 2/8] KVM: arm64: expose FEAT_LSUI to guest Date: Mon, 23 Feb 2026 17:47:56 +0000 Message-Id: <20260223174802.458411-3-yeoreum.yun@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260223174802.458411-1-yeoreum.yun@arm.com> References: <20260223174802.458411-1-yeoreum.yun@arm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit expose FEAT_LSUI to guest. Signed-off-by: Yeoreum Yun Acked-by: Marc Zyngier Reviewed-by: Catalin Marinas --- arch/arm64/kvm/sys_regs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index a7cd0badc20c..b43e2bec35db 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -1805,7 +1805,7 @@ static u64 __kvm_read_sanitised_id_reg(const struct kvm_vcpu *vcpu, break; case SYS_ID_AA64ISAR3_EL1: val &= ID_AA64ISAR3_EL1_FPRCVT | ID_AA64ISAR3_EL1_LSFE | - ID_AA64ISAR3_EL1_FAMINMAX; + ID_AA64ISAR3_EL1_FAMINMAX | ID_AA64ISAR3_EL1_LSUI; break; case SYS_ID_AA64MMFR2_EL1: val &= ~ID_AA64MMFR2_EL1_CCIDX_MASK; @@ -3249,6 +3249,7 @@ static const struct sys_reg_desc sys_reg_descs[] = { ID_AA64ISAR2_EL1_GPA3)), ID_WRITABLE(ID_AA64ISAR3_EL1, (ID_AA64ISAR3_EL1_FPRCVT | ID_AA64ISAR3_EL1_LSFE | + ID_AA64ISAR3_EL1_LSUI | ID_AA64ISAR3_EL1_FAMINMAX)), ID_UNALLOCATED(6,4), ID_UNALLOCATED(6,5), -- LEVI:{C3F47F37-75D8-414A-A8BA-3980EC8A46D7}