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 5E41F10ED679 for ; Fri, 27 Mar 2026 14:03:59 +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=OvJUS81flsb2hbcHjwhoK/sE5tKV37DQ91O4z9H8jG8=; b=OlURLXIj3XUuUkpZPkYkN6s2eU ATjuE6gv8fICF5cMh2NjPCqXq4q4nyDrNJQ0d8YrY9Mfduqe2yDrE1FQTioWTf2fif5fm+/yki02y a/XZ46uEdgnCW3Qj6Ujbj7+pWUSWTq5S1VIhTFHt/S9W2KkCsDhA+L4h14+IvZjGj+dyrl8ijACJs d3H++7gHIAXJHDBVfzcKj/Y0CerjrezvTjxiHDwfE/8HS0xp9APZf/Di67pw8hWnMpT81qpRMXTrq tcFhlD7Fwfr2tFNgWYrK2P1SAdjjpOLJXgHlzlWzr//Qo7aDitcLvqQP/BCNSD870iDDMdyqec2XY myou5Huw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w67mu-00000007Xbj-0fEx; Fri, 27 Mar 2026 14:03:48 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w67lv-00000007WwB-0m77 for linux-arm-kernel@lists.infradead.org; Fri, 27 Mar 2026 14:02:47 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 81AC460138; Fri, 27 Mar 2026 14:02:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7E0E8C2BC9E; Fri, 27 Mar 2026 14:02:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774620166; bh=v4sdbEpyuONuFqIpPjjub6r/ELYIQlt3BomGV+5iADE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RALNcfxTnSfal0Vp+l08UVtKtcFRQW6jn4NSRn7Rru9t5CoknS6a5MApZaobNPCJ8 tjsl4ITZNfROcrHd7jQckUhCNvrqE36xPj36Kdp1WYdcRlcY+1+3ZoW0ln73+oKLTr yc09SPmOdLZN39a0aFv8MbMB5q2qu5zACGBlT4i31UxY5kC6WsCZ3Hp0gl2hcGlz7k koOn2GhSzwG7a+oNEf20qYlalfuP7h9IbX3AGybY172IkvE4ZY493FTk98zc9ExwCg bOWUU91AjFxEXA/fOiPAiawP8odSUvvrDOvpx2peT8q8nx6qW2U5bRQyQmB6vI0cHp yRmxj+Na2CH2w== From: Will Deacon To: kvmarm@lists.linux.dev Cc: linux-arm-kernel@lists.infradead.org, Will Deacon , Marc Zyngier , Oliver Upton , Joey Gouly , Suzuki K Poulose , Zenghui Yu , Catalin Marinas , Quentin Perret , Fuad Tabba , Vincent Donnefort , Mostafa Saleh , Alexandru Elisei Subject: [PATCH v4 35/38] KVM: arm64: Extend pKVM page ownership selftests to cover forced reclaim Date: Fri, 27 Mar 2026 14:00:34 +0000 Message-ID: <20260327140039.21228-36-will@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260327140039.21228-1-will@kernel.org> References: <20260327140039.21228-1-will@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 Extend the pKVM page ownership selftests to forcefully reclaim a donated page and check that it cannot be re-donated at the same IPA. Tested-by: Fuad Tabba Tested-by: Mostafa Saleh Signed-off-by: Will Deacon --- arch/arm64/kvm/hyp/nvhe/mem_protect.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c index b2c9ea105701..05a5b145e303 100644 --- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c +++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c @@ -1813,8 +1813,20 @@ void pkvm_ownership_selftest(void *base) assert_transition_res(-EPERM, __pkvm_hyp_donate_host, pfn, 1); selftest_state.host = PKVM_PAGE_OWNED; - selftest_state.guest[0] = PKVM_NOPAGE; - assert_transition_res(0, __pkvm_host_reclaim_page_guest, gfn, vm); + selftest_state.guest[0] = PKVM_POISON; + assert_transition_res(0, __pkvm_host_force_reclaim_page_guest, phys); + assert_transition_res(-EPERM, __pkvm_host_donate_guest, pfn, gfn, vcpu); + assert_transition_res(-EPERM, __pkvm_host_share_guest, pfn, gfn, 1, vcpu, prot); + + selftest_state.host = PKVM_NOPAGE; + selftest_state.guest[1] = PKVM_PAGE_OWNED; + assert_transition_res(0, __pkvm_host_donate_guest, pfn, gfn + 1, vcpu); + + selftest_state.host = PKVM_PAGE_OWNED; + selftest_state.guest[1] = PKVM_NOPAGE; + assert_transition_res(0, __pkvm_host_reclaim_page_guest, gfn + 1, vm); + assert_transition_res(-EPERM, __pkvm_host_donate_guest, pfn, gfn, vcpu); + assert_transition_res(-EPERM, __pkvm_host_share_guest, pfn, gfn, 1, vcpu, prot); selftest_state.host = PKVM_NOPAGE; selftest_state.hyp = PKVM_PAGE_OWNED; -- 2.53.0.1018.g2bb0e51243-goog