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 284B55803B6; Tue, 8 Sep 2026 16:23:28 +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=1788884610; cv=none; b=Cxgd/VQSM9p470/lthqHBbF+WLwGfF2X5yh2xWkdGfUu6u10HzBb+kE7FwyyDibZzpe2m5STkSqPETvtK6gr+qmxf6CDiBv38Uyk4uzgH/MMFFGWcmj6SbNjbmpJyDS7fYtTQCAPhqJYlxCHryqGsZE0xSVB/ktdpAYw9iEhfy0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788884610; c=relaxed/simple; bh=W2yWocIjX/1lSG41m89vduKUKYOsNpQW6LsSskrDhH8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gQQHE25WHDJFsN+m0qzCIWkcVknvG5eHEQ7In2wXna7GTs8qPrYgFXoKSOOu1szqpfBydF6thJ3Ptkw0gYlQaSGAC52WBqptenniMH0GpUt8QJASA74PtQJfGqrY4NzwTPJlXtSy+qZVJ/xaiajo+qSXeSXyAm6y2vyz6lKwau0= 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; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=C/02/NQ7; 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 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="C/02/NQ7" 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 D2DAF1477; Tue, 8 Sep 2026 09:23:24 -0700 (PDT) Received: from ewhatever.cambridge.arm.com (ewhatever.cambridge.arm.com [10.2.197.99]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 356B33F7B4; Tue, 8 Sep 2026 09:23:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1788884608; bh=W2yWocIjX/1lSG41m89vduKUKYOsNpQW6LsSskrDhH8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=C/02/NQ71e7kEfL+DYbaJceFhyRvQa7eVvAYwvfxkW3wXxUNeydtcGDoxcGzimu2b f0rnHpbKFLqCBQrtJ/a7dn+aEA3mMqvBmxQcYvLKLq/7ImxMPMkj1tY4SqXkxyEMEV rLo3UfobC5k9KyJtN8fQpcyleSowUCWy8shC18nw= From: Suzuki K Poulose To: kvm@vger.kernel.org, kvmarm@lists.linux.dev Cc: maz@kernel.org, will@kernel.org, catalin.marinas@arm.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, steven.price@arm.com, aneesh.kumar@kernel.org, oupton@kernel.org, gshan@redhat.com, joey.gouly@arm.com, tabba@google.com, yuzenghui@huawei.com, linux-coco@lists.linux.dev, gankulkarni@os.amperecomputing.com, sdonthineni@nvidia.com, alpergun@google.com, fj0570is@fujitsu.com, WeiLin.Chang@arm.com, lpieralisi@kernel.org, enju.kohei@fujitsu.com, Suzuki K Poulose Subject: [PATCH v17 11/20] KVM: arm64: coco: Don't handle MMIO with no ISV Date: Tue, 8 Sep 2026 17:22:14 +0100 Message-ID: <20260908162223.1683432-12-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260908162223.1683432-1-suzuki.poulose@arm.com> References: <20260908162223.1683432-1-suzuki.poulose@arm.com> Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Generalize the MMIO with no ISV handling to confidential guests. Signed-off-by: Suzuki K Poulose --- arch/arm64/kvm/mmio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/kvm/mmio.c b/arch/arm64/kvm/mmio.c index d1c3a352d5a22..bbcf52f01e912 100644 --- a/arch/arm64/kvm/mmio.c +++ b/arch/arm64/kvm/mmio.c @@ -168,14 +168,14 @@ int io_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa) * No valid syndrome? Ask userspace for help if it has * volunteered to do so, and bail out otherwise. * - * In the protected VM case, there isn't much userspace can do + * In the protected/Realm VM case, there isn't much userspace can do * though, so directly deliver an exception to the guest. */ if (!kvm_vcpu_dabt_isvalid(vcpu)) { trace_kvm_mmio_nisv(*vcpu_pc(vcpu), esr, kvm_vcpu_get_hfar(vcpu), fault_ipa); - if (vcpu_is_protected(vcpu)) + if (vcpu_is_confidential(vcpu)) return kvm_inject_sea_dabt(vcpu, kvm_vcpu_get_hfar(vcpu)); if (test_bit(KVM_ARCH_FLAG_RETURN_NISV_IO_ABORT_TO_USER, -- 2.43.0