From patchwork Mon Oct 7 15:38:16 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Price X-Patchwork-Id: 11177999 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DA0881599 for ; Mon, 7 Oct 2019 15:42:53 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 91EDF20640 for ; Mon, 7 Oct 2019 15:42:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="tuXKsLnM" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 91EDF20640 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Uo04vtZmzRaOdZ3t4zfJBPXICGBO2Nk/6DelwY/JbBI=; b=tuXKsLnMm3KtAD 0EwSP0+Etu/TXbYKXwXl0d/ziaDxDHg9pmxtjXnRUjvkGz6kmm7GSHylC9CuRkTXmkE90SoRybzpV PVO21MHS3CO4OTZZ5kIfQy0pfmhvGXcbIZuPeGKjfmvI5wtu87BrhgUI6778ksAUteYcuzLmelhj8 qUEOpXPLMWytsHF5/bLlzF4pTGtwzXw5rRH/jNbn8Kokme+ZoPqznxOK44RQbUCSUUcd9kfRSIIEi ry6AzpqY+phLQNj1o1//sOZmh6JpmeNZ7GasnV0VnExRdk6rINreSXK3pij1WZ5yUoRVPuZNldnOd gO9IeaOyS/u3Rur/WyKA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iHV9v-0000Jg-EY; Mon, 07 Oct 2019 15:42:51 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iHV6f-0003yw-6m for linux-arm-kernel@lists.infradead.org; Mon, 07 Oct 2019 15:39:31 +0000 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 959B71576; Mon, 7 Oct 2019 08:39:28 -0700 (PDT) Received: from e112269-lin.arm.com (unknown [10.1.197.21]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 0C8633F6C4; Mon, 7 Oct 2019 08:39:25 -0700 (PDT) From: Steven Price To: linux-mm@kvack.org Subject: [PATCH v11 16/22] x86: mm+efi: Convert ptdump_walk_pgd_level() to take a mm_struct Date: Mon, 7 Oct 2019 16:38:16 +0100 Message-Id: <20191007153822.16518-17-steven.price@arm.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191007153822.16518-1-steven.price@arm.com> References: <20191007153822.16518-1-steven.price@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191007_083929_502356_8A8D884D X-CRM114-Status: GOOD ( 13.06 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , x86@kernel.org, Arnd Bergmann , Ard Biesheuvel , Peter Zijlstra , Catalin Marinas , Dave Hansen , linux-kernel@vger.kernel.org, Steven Price , =?utf-8?b?SsOpcsO0bWUgR2xpc3Nl?= , Ingo Molnar , Borislav Petkov , Andy Lutomirski , "H. Peter Anvin" , James Morse , Thomas Gleixner , Will Deacon , Andrew Morton , linux-arm-kernel@lists.infradead.org, "Liang, Kan" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org To enable x86 to use the generic walk_page_range() function, the callers of ptdump_walk_pgd_level() need to pass an mm_struct rather than the raw pgd_t pointer. Luckily since commit 7e904a91bf60 ("efi: Use efi_mm in x86 as well as ARM") we now have an mm_struct for EFI on x86. Signed-off-by: Steven Price --- arch/x86/include/asm/pgtable.h | 2 +- arch/x86/mm/dump_pagetables.c | 4 ++-- arch/x86/platform/efi/efi_32.c | 2 +- arch/x86/platform/efi/efi_64.c | 4 ++-- 4 files changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 6986a451619e..1a2b469f6e75 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -29,7 +29,7 @@ extern pgd_t early_top_pgt[PTRS_PER_PGD]; int __init __early_make_pgtable(unsigned long address, pmdval_t pmd); -void ptdump_walk_pgd_level(struct seq_file *m, pgd_t *pgd); +void ptdump_walk_pgd_level(struct seq_file *m, struct mm_struct *mm); void ptdump_walk_pgd_level_debugfs(struct seq_file *m, pgd_t *pgd, bool user); void ptdump_walk_pgd_level_checkwx(void); void ptdump_walk_user_pgd_level_checkwx(void); diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c index 4dc6f4df40af..24fe76325b31 100644 --- a/arch/x86/mm/dump_pagetables.c +++ b/arch/x86/mm/dump_pagetables.c @@ -567,9 +567,9 @@ static void ptdump_walk_pgd_level_core(struct seq_file *m, pgd_t *pgd, pr_info("x86/mm: Checked W+X mappings: passed, no W+X pages found.\n"); } -void ptdump_walk_pgd_level(struct seq_file *m, pgd_t *pgd) +void ptdump_walk_pgd_level(struct seq_file *m, struct mm_struct *mm) { - ptdump_walk_pgd_level_core(m, pgd, false, true); + ptdump_walk_pgd_level_core(m, mm->pgd, false, true); } void ptdump_walk_pgd_level_debugfs(struct seq_file *m, pgd_t *pgd, bool user) diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c index 9959657127f4..1616074075c3 100644 --- a/arch/x86/platform/efi/efi_32.c +++ b/arch/x86/platform/efi/efi_32.c @@ -49,7 +49,7 @@ void efi_sync_low_kernel_mappings(void) {} void __init efi_dump_pagetable(void) { #ifdef CONFIG_EFI_PGT_DUMP - ptdump_walk_pgd_level(NULL, swapper_pg_dir); + ptdump_walk_pgd_level(NULL, &init_mm); #endif } diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index 08ce8177c3af..3cb63cd369d6 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -614,9 +614,9 @@ void __init efi_dump_pagetable(void) { #ifdef CONFIG_EFI_PGT_DUMP if (efi_enabled(EFI_OLD_MEMMAP)) - ptdump_walk_pgd_level(NULL, swapper_pg_dir); + ptdump_walk_pgd_level(NULL, &init_mm); else - ptdump_walk_pgd_level(NULL, efi_mm.pgd); + ptdump_walk_pgd_level(NULL, &efi_mm); #endif }