From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5150D227599 for ; Fri, 27 Mar 2026 14:02:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774620166; cv=none; b=DTcNVgsHXSg/VL6nOazQiGvNFl2Icv45t2neAeD26bAoBahRU56ojSvLFh6g2whCsfZcV2gdN+n9X0SJ+nBeVrbVhCqBXLuqT0l+opglXlbqVcuBslIcC7b6pyUrXpfnyxfLHMCcqT9ZZgUIUQmKWjl7MxCk+bir8lIa9nTAC4g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774620166; c=relaxed/simple; bh=v4sdbEpyuONuFqIpPjjub6r/ELYIQlt3BomGV+5iADE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=La+c5PifbG2H4YR8gE3ip07u6EtUIuACINUzA4c98u0AfDhhqXkB3A2gTfcUx2tBL2eQk+H+sclkoOp0nv7NAf4FeQlxBFeUIssOWUvh+v62IHPqRD/Et2t7WooRkBnaH5qJ554exkPvI5guID36IZTS9U4IvDLWiQxlOhRQxuw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RALNcfxT; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="RALNcfxT" 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> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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