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 6A0F0CA5FFC for ; Mon, 5 Oct 2026 09:09:16 +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=RR3SF8bBNYM0M+gmxu0vGHYjR8VY7Gn3WIgokObd70Y=; b=iX0CUtoX+SpJGt8SWRm9ABtnRH pEotNqkpuHSBDWaYnpsGQBQEPrydtGx5FiysYK7SFpXEYRIB40Fnu6Lmx+vK/iLH+PPv/5y219iff rFgJzZbaTyhIpQh1izp7D6lb9yhWIGSnWXbFAUN2PKyJyMTNEhuXTp7GmeBVc8MEXXzDdsLB8HeJa MhDFlLDYbbXqj6OSn8ErfMEeGsYdQPaO6grwbM6cXqqo+dqjV01OY9WxRhNApx9wrIntWzsECYyGj xhZldUTedEKQkfVMuD3Q/MAs/AOmnJG8Tr9CpXIWKSW9B++dOCXaUOk8BYQLpg76XeIny0BR2oM3J g8PR4+yg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xDeh4-0000000FxLU-0Hsr; Mon, 05 Oct 2026 09:09:10 +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 1xDegu-0000000Fx8d-3bKp for linux-arm-kernel@lists.infradead.org; Mon, 05 Oct 2026 09:09:08 +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 477EF152B; Mon, 5 Oct 2026 02:08:56 -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 A8E483FA7A; Mon, 5 Oct 2026 02:08:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1791191339; bh=s6QkqMg6xgjyuVjQ+GhP11BRTVN5gNs8kOtMV/1c+UY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZbJA97biHbWivO3tOrVOusJ6pRpukf3xp/f8RMdpOGAzwI4FAfIJNXGikpnOrXTXf MhqahK+3Fj0cAl2+nC+51vOuhPDDsoh3f5ChTHixN+6IlhJSA6SclmgaOtR8ARTc0g vhX1qY4CJsQlSBYjPPi/P00n3mtuIWDqcunIJG2Q= 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, sudeep.holla@arm.com, jonathan.cameron@oss.qualcomm.com, Suzuki K Poulose Subject: [PATCH v22 16/23] KVM: arm64: CCA: Add VCPU load/put for Realms Date: Mon, 5 Oct 2026 10:07:47 +0100 Message-ID: <20261005090754.2140522-17-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20261005090754.2140522-1-suzuki.poulose@arm.com> References: <20261005090754.2140522-1-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-20261005_020900_950117_0ACD8C67 X-CRM114-Status: UNSURE ( 9.10 ) 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 6c81fec35ecec..294cea4cc8271 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -802,6 +802,13 @@ 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; @@ -854,6 +861,12 @@ 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); @@ -2213,6 +2226,11 @@ 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