From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id ECE27C88E75 for ; Tue, 15 Sep 2026 16:03:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=+EpLeAvpwENxWWcap8QZd64bqIjWflHbYY2zhuVC6FE=; b=p3p0HQuwSlU+P5k0Rn3sREcQ/S MMYpGi8eGzN4hRt75pu2i2Rr8CYTSJCk/VsOhc3Rt0doUL3+iuiaDfSfArQ2HoFGjb80OTJuuBP8o 2itDYIBIwZ27Q1q8JPoLU+6ZTI0K5lymk2l8d/zfND5y9V2oLR+uiwhi2jqbsaiw5M7kLVZF8cNgS /WIYkPpg0gjAO5cqb9wYmfz7eSA2M7XzhYpWaZPqG51oScmXMnHVg1KqR7UtFgBkale/KLMVro7UN 2zZMAkJw2mGp02oiDHaAEqKkZZ7lJRSG7ayYi3pZ7v/XLtbfbtZ7ug4Tm0TzWAXu4T/dzSYabRQfr xwA6lsiA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x6Vcg-00000007LpW-249r; Tue, 15 Sep 2026 16:03:06 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x6VcE-00000007LQd-2itB for linux-arm-kernel@lists.infradead.org; Tue, 15 Sep 2026 16:02:42 +0000 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 85E6615A1; Tue, 15 Sep 2026 09:02:34 -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 6C45B3F882; Tue, 15 Sep 2026 09:02:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1789488158; bh=Hr0tbWfq8F0IVCRUDUUzkgoxynPwZ155E3egh/n+xRs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Kx2tzd3Nv+rn3+vC7rREjlR1BIPSf/pZDIAS1O3hiGhCTyDvv4EK9/g5gzQugmByX r1uDhYnsSLstMaUATzLl8zkA9Jt5kdlUb9sKUk155ww04xKu3x+IolHC2Z/YQNfDEr vguv6TNdzO9st4cHgyzllNsRGHYk+x/KENNzsNvc= 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 v18 15/23] KVM: arm64: CCA: Add VCPU load/put for Realms Date: Tue, 15 Sep 2026 17:01:33 +0100 Message-ID: <20260915160141.3543048-16-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260915160141.3543048-1-suzuki.poulose@arm.com> References: <20260915160141.3543048-1-suzuki.poulose@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260915_090238_746008_CB00A30B X-CRM114-Status: UNSURE ( 9.43 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org RMM controls the VCPU settings and most are hidden from the KVM, except for the VGIC and timer bits. A later patch would add syncing the VCPU state into the Realm REC related SMC parameters. Signed-off-by: Suzuki K Poulose --- arch/arm64/kvm/arm.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index ae09d0d9812c5..8defec75b8438 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -810,6 +810,13 @@ static void pkvm_vcpu_load(struct kvm_vcpu *vcpu) &vcpu->arch.vgic_cpu.vgic_v3); } +static void realm_vcpu_load(struct kvm_vcpu *vcpu) +{ + kvm_timer_vcpu_load(vcpu); + kvm_vgic_load(vcpu); + vcpu_set_wfx_traps(vcpu); +} + void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) { vcpu->cpu = cpu; @@ -860,6 +867,12 @@ static void pkvm_vcpu_put(struct kvm_vcpu *vcpu) kvm_vcpu_pmu_restore_host(vcpu); } +static void realm_vcpu_put(struct kvm_vcpu *vcpu) +{ + kvm_timer_vcpu_put(vcpu); + kvm_vgic_put(vcpu); +} + void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) { vcpu->arch.vcpu_ops->vcpu_put(vcpu); @@ -2217,6 +2230,11 @@ static const struct kvm_vcpu_ops pkvm_vcpu_ops = { .vcpu_put = pkvm_vcpu_put, }; +static const struct kvm_vcpu_ops realm_vcpu_ops = { + .vcpu_load = realm_vcpu_load, + .vcpu_put = realm_vcpu_put, +}; + #define KVM_VCPU_OPS(flavor, ops) \ [(flavor)] = (ops) -- 2.43.0