From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 3E98B40B6FA for ; Tue, 30 Jun 2026 12:11:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782821494; cv=none; b=aQlAtdFt1ySZOFQl4JgxeuYRLMyrsrxbJulKgauS3N/UcNAKdp92du4x08kBFkZ9g1rilEGvQT4XBngJ0OLkBjCZHOGM12BzbEylq74sk1AHuPL3yx51kYnOD1CRcDzp3/L4uZSTTxbIOG48nIVduJ0y+mL4iUIGw71NWT76d3k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782821494; c=relaxed/simple; bh=28ACkWnLv7YMnNE//WvQjnBg78xe5Fk9GG40vt1q1ig=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mXqRUK3/s7Z+UkyAvraxMv2JVPRWBRUoIGJTo8s2XKr0KJGNkRj5pGgHDDkf/0oxxEZ0PHViaf2C4HSb/A8UnJeesyEuCIUthUwlpXHHHVPPr8HX/JS3vdz3P+oF15Yoe0RXRJMhHjWYq/c/QDHgXOurZML78eIeNgGjgjTbfJk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=lZrVIQJ6; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="lZrVIQJ6" Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 477D9175A; Tue, 30 Jun 2026 05:11:28 -0700 (PDT) Received: from workstation-e142269.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 9032C3F905; Tue, 30 Jun 2026 05:11:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1782821492; bh=28ACkWnLv7YMnNE//WvQjnBg78xe5Fk9GG40vt1q1ig=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lZrVIQJ6KwfHxRbspsdaaFLL4JY31qpds++E7hrs7ib/D87PWWSl46Cl/vUvoe79u 18xndfqem2wOolzhzsVmMS8Ycd67tHewNOJlgE66vihKtlwBHMUM6LPAu8eiQ5hH02 z3luARonf6fMy44CZ0L0EyAVhcU06wWp8XTjZfyU= From: Wei-Lin Chang To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org Cc: Marc Zyngier , Oliver Upton , Fuad Tabba , Joey Gouly , Steffen Eiden , Suzuki K Poulose , Zenghui Yu , Catalin Marinas , Will Deacon , Itaru Kitayama , Sebastian Ene , Wei-Lin Chang Subject: [PATCH v2 4/6] KVM: arm64: ptdump: Factor out initialization of kvm_ptdump_guest_state Date: Tue, 30 Jun 2026 13:10:03 +0100 Message-ID: <20260630121005.1130996-5-weilin.chang@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260630121005.1130996-1-weilin.chang@arm.com> References: <20260630121005.1130996-1-weilin.chang@arm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Extract the code for initializing kvm_ptdump_guest_state to allow reusing the same instance for dumping multiple page tables. Signed-off-by: Wei-Lin Chang --- arch/arm64/kvm/ptdump.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) diff --git a/arch/arm64/kvm/ptdump.c b/arch/arm64/kvm/ptdump.c index 752d8e0cd25c..0c9647666e65 100644 --- a/arch/arm64/kvm/ptdump.c +++ b/arch/arm64/kvm/ptdump.c @@ -112,6 +112,23 @@ static int kvm_ptdump_build_levels(struct ptdump_pg_level *level, u32 start_lvl) return 0; } +static int kvm_ptdump_parser_init(struct kvm_ptdump_guest_state *st, struct kvm *kvm, + struct kvm_pgtable *pgt) +{ + int ret; + + ret = kvm_ptdump_build_levels(&st->level[0], pgt->start_level); + if (ret) + return ret; + + st->ipa_marker[0].name = "Guest IPA"; + st->ipa_marker[1].start_address = BIT(pgt->ia_bits); + + st->kvm = kvm; + + return 0; +} + static struct kvm_ptdump_guest_state *kvm_ptdump_parser_create(struct kvm *kvm) { struct kvm_ptdump_guest_state *st; @@ -129,17 +146,13 @@ static struct kvm_ptdump_guest_state *kvm_ptdump_parser_create(struct kvm *kvm) } pgtable = kvm->arch.mmu.pgt; + ret = kvm_ptdump_parser_init(st, kvm, pgtable); - ret = kvm_ptdump_build_levels(&st->level[0], pgtable->start_level); if (ret) { kfree(st); return ERR_PTR(ret); } - st->ipa_marker[0].name = "Guest IPA"; - st->ipa_marker[1].start_address = BIT(pgtable->ia_bits); - - st->kvm = kvm; return st; } -- 2.43.0