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 DEF9735E555 for ; Mon, 19 Jan 2026 12:48:37 +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=1768826917; cv=none; b=qc/1F3ENBJMDEspKEpyVQQ48ZXv5Tzhz5/gvFfx0wLRhrwD7vyjhQt9cd7qpNFpuRYquLZ65S7MqgsDJeIr+6sh6CXZU23Yy8p52EhcNdmBVaszHdtImYV6netzMnKaoDQP/BD13pH4Pl+Xhjgyka9CG19xlDojKnHy3UJGfyyI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768826917; c=relaxed/simple; bh=kQcy7tZbHLnHu83JmogDffTHHwCWfmsWUHO+FmDCzzY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WJy5huumRph1xC4ZMvwkTKL43lM1A0rIFr7vOJIXJ+DVC5bC0Y7eC0fpPVDYwpxm7pcD8ApcjQtEe0wP15Ocg7Mr+q9bY2IrlVvorYukaZkkgvrqPW2n5yY2sTXOlP8uxh8B809sP/IDvrHMmaH1txzTlDxbz8FrWWDvPmYJ+Tc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HMXFTSpr; 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="HMXFTSpr" 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> 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. 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