From: Russell King - ARM Linux admin <linux@armlinux.org.uk>
To: Chester Lin <clin@suse.com>
Cc: "ard.biesheuvel@linaro.org" <ard.biesheuvel@linaro.org>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"rppt@linux.ibm.com" <rppt@linux.ibm.com>,
"ren_guo@c-sky.com" <ren_guo@c-sky.com>,
Juergen Gross <JGross@suse.com>,
"geert@linux-m68k.org" <geert@linux-m68k.org>,
"mingo@kernel.org" <mingo@kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>,
"guillaume.gardet@arm.com" <guillaume.gardet@arm.com>,
Joey Lee <JLee@suse.com>, Gary Lin <GLin@suse.com>
Subject: Re: [PATCH] efi/arm: fix allocation failure when reserving the kernel base
Date: Tue, 20 Aug 2019 12:56:46 +0100 [thread overview]
Message-ID: <20190820115645.GP13294@shell.armlinux.org.uk> (raw)
In-Reply-To: <20190802053744.5519-1-clin@suse.com>
On Fri, Aug 02, 2019 at 05:38:54AM +0000, Chester Lin wrote:
> diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
> index f3ce34113f89..909b11ba48d8 100644
> --- a/arch/arm/mm/mmu.c
> +++ b/arch/arm/mm/mmu.c
> @@ -1184,6 +1184,9 @@ void __init adjust_lowmem_bounds(void)
> phys_addr_t block_start = reg->base;
> phys_addr_t block_end = reg->base + reg->size;
>
> + if (memblock_is_nomap(reg))
> + continue;
> +
> if (reg->base < vmalloc_limit) {
> if (block_end > lowmem_limit)
> /*
I think this hunk is sane - if the memory is marked nomap, then it isn't
available for the kernel's use, so as far as calculating where the
lowmem/highmem boundary is, it effectively doesn't exist and should be
skipped.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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next prev parent reply other threads:[~2019-08-20 11:57 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-02 5:38 [PATCH] efi/arm: fix allocation failure when reserving the kernel base Chester Lin
2019-08-04 7:57 ` Ard Biesheuvel
2019-08-14 7:58 ` Guillaume Gardet
2019-08-15 7:59 ` Ard Biesheuvel
2019-08-15 11:16 ` Chester Lin
2019-08-15 11:32 ` Ard Biesheuvel
2019-08-15 13:37 ` Mike Rapoport
2019-08-19 7:56 ` Chester Lin
2019-08-19 14:56 ` Ard Biesheuvel
2019-08-20 7:33 ` Chester Lin
2019-08-20 7:49 ` Mike Rapoport
2019-08-20 10:29 ` Chester Lin
2019-08-20 11:00 ` Ard Biesheuvel
2019-08-20 11:54 ` Russell King - ARM Linux admin
2019-08-20 12:27 ` Ard Biesheuvel
2019-08-20 11:56 ` Russell King - ARM Linux admin [this message]
2019-08-20 12:28 ` Ard Biesheuvel
2019-08-21 6:10 ` Chester Lin
2019-08-21 6:35 ` Ard Biesheuvel
2019-08-21 7:11 ` Mike Rapoport
2019-08-21 7:22 ` Chester Lin
2019-08-21 7:29 ` Ard Biesheuvel
2019-08-21 8:29 ` Mike Rapoport
2019-08-21 9:42 ` Ard Biesheuvel
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