linux-kernel - Re: linux-next: manual merge of the akpm-current tree with the arm64 tree

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20200921081228.GA13882@gaia>
Date:   Mon, 21 Sep 2020 09:12:28 +0100
From:   Catalin Marinas <catalin.marinas@....com>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Will Deacon <will@...nel.org>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: manual merge of the akpm-current tree with the arm64
 tree

On Mon, Sep 21, 2020 at 06:03:53PM +1000, Stephen Rothwell wrote:
> diff --cc arch/arm64/mm/mmu.c
> index 087a844b4d26,64211436629d..000000000000
> --- a/arch/arm64/mm/mmu.c
> +++ b/arch/arm64/mm/mmu.c
> @@@ -493,21 -483,10 +494,15 @@@ static void __init map_mem(pgd_t *pgdp
>   #endif
>   
>   	/* map all the memory banks */
> - 	for_each_memblock(memory, reg) {
> - 		phys_addr_t start = reg->base;
> - 		phys_addr_t end = start + reg->size;
> - 
> + 	for_each_mem_range(i, &start, &end) {
>   		if (start >= end)
>   			break;
> - 		if (memblock_is_nomap(reg))
> - 			continue;
> - 
>  -		__map_memblock(pgdp, start, end, PAGE_KERNEL, flags);
>  +		/*
>  +		 * The linear map must allow allocation tags reading/writing
>  +		 * if MTE is present. Otherwise, it has the same attributes as
>  +		 * PAGE_KERNEL.
>  +		 */
>  +		__map_memblock(pgdp, start, end, PAGE_KERNEL_TAGGED, flags);
>   	}

It looks fine. Thanks Stephen.

-- 
Catalin