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 0A751CCF2FE for ; Mon, 19 Jan 2026 12:49:55 +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=owReMfd7fUHGoY7wGCtA7Sg0DGWt3iNxaocNGZdM+eo=; b=Msod6sgh3fTHmTTz6M+xw1CKeP IBF5XOiFwlxv9BatJZGRDLgKE6cfp2lEEYYnQIRi5uiMGrBferNr3TUSa99A+TrzJmu4TA1IQVFK3 SCAw7AsREOjYJuwjAcGljYLw23EJivh0y9AlOvaQ/VFyeg4e6M1gVoE6cZyei9XeWvFMwbApSduAs C7QD5RSRxfMjQs54P5QAI3dbBWZbC4XLkRtswg7r0YK+JVvJxTb8dcJqkZIsxvJXDOP2WLvQt/Ko9 KX3HeUlPrzUkl4hqXZPA37wf0sbID0qSyZyeXTwQMz0WgGPFu20gAtNFA+S2H4vTqlBez7zKRw50C TLsfIBow==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vhohW-0000000256F-2b4P; Mon, 19 Jan 2026 12:49:46 +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 1vhogQ-000000024Es-2ukt for linux-arm-kernel@lists.infradead.org; Mon, 19 Jan 2026 12:48:41 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 1A7406016C; Mon, 19 Jan 2026 12:48:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 44187C116C6; Mon, 19 Jan 2026 12:48:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768826917; bh=kQcy7tZbHLnHu83JmogDffTHHwCWfmsWUHO+FmDCzzY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HMXFTSprX7EZ9/BSDIk0pC4Bcr/3BG+tyJIXFYB1oOSidh4y8JnJwUlQjEpjRLGtu yOlQuzGCntTVei76DuTyBba5NFp5z23b1PgbmKkPFdXDGm1B/Goj1xzwSJ34mL+VP9 8S1kiZ11+2pddF6G3oYeyjA76W5McY5m31bK/3WWzy0Xdx1ROdUkBGWzLGETT3vklG vuGxHiKYUPmNlzOnJdx91/zG2sLLh4gFZs/1s1T/1+6w5Nu/DD53+rknaHhEQ2W0ct flmytL71DDZYT2HD2fKzWO4indfWP9NXUs2rpbhkckLwOdNUjKKyU8TX1z+McHRJsG Iliq52SXeTr7w== 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 Subject: [PATCH v2 34/35] KVM: arm64: Extend pKVM page ownership selftests to cover forced reclaim Date: Mon, 19 Jan 2026 12:46:27 +0000 Message-ID: <20260119124629.2563-35-will@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260119124629.2563-1-will@kernel.org> References: <20260119124629.2563-1-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 f36f81f75fdf..a7d880701933 100644 --- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c +++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c @@ -1821,8 +1821,20 @@ 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; -- 2.52.0.457.g6b5491de43-goog