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 36956F33A78 for ; Thu, 5 Mar 2026 14:46:16 +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=VgP/zWRUG4BpiiGDcd8G5nA6nglYNR7D1y2gM6shD+E=; b=nNgJpJnR8zGN9DSM8c7y3yK2gY 2ISP/akb0+xjZ5tYOr3oAYvdZXLFbpBiAWuOhhdtvOS1SAAnabDfoVjG2Ygfl4QXpqc8Iyl6bFjFs NkTdwtXJazp0dj4MUsauhmE8ewH5YB04lfmabZmJmXW5e9LgyvFPf0t1bkxANmhiYG8EQNdUx7OQZ f8W7kqZ5pxXudpqRke3Jf9KH52nBFSRvwTCsGTEyuSmHfHoGhfaVcsIAlHlxqtm8FKJRBY6yOoM4i dQBTrwxmhxk2B2EOIclsbUp6nbSyd98wFUvbV8fLiSTuqphD7RNHT760ebrFcTCkiZq1U6A7cEI+V wwLROXbA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vy9xq-0000000234r-3c7P; Thu, 05 Mar 2026 14:46:10 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vy9xp-0000000232i-1knD for linux-arm-kernel@lists.infradead.org; Thu, 05 Mar 2026 14:46:09 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id CC36F61340; Thu, 5 Mar 2026 14:46:08 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A28ACC2BC9E; Thu, 5 Mar 2026 14:46:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772721968; bh=SYRALiYS850xWg3rAEJIWtzEkjEK13L1b+03ZuBiGOg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UpmF5Zy/daE6Nkfntxh7G+lAf6dZpU/vKMiAoDUmCu7QmcHumq/D/HXmz9JLy5oue OnGSomm0TF5SEyLwx8fe+fx5GIwDNRBiLAhWcuDRorGNnpzgMk/Bej42JY05Vp7jii 6Miujf/FU1sCLs25UefzCrcdhXH7fB1W+1G8qrixwPWTcc2/4v9Dg3w+qZL+3QtOY+ igP/ijJA9om6WhOF1fklTKdRFGxfZKZOZKKMVTJsZKdV7vEypYPVkAOTdLy8oulI+G vDTWeNT2kmnUjzZmABr0NK5iHzVC/I1sJBwbQQJuAdcS/fG8Bj/AObyO1HvbpbPzXi NCZCP//3Lsr2Q== 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 v3 34/36] KVM: arm64: Extend pKVM page ownership selftests to cover forced reclaim Date: Thu, 5 Mar 2026 14:43:47 +0000 Message-ID: <20260305144351.17071-35-will@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260305144351.17071-1-will@kernel.org> References: <20260305144351.17071-1-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. 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 1f461a0e9a77..de224e4ffeeb 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; -- 2.53.0.473.g4a7958ca14-goog