From: Nicholas Piggin <npiggin@gmail.com>
To: Balbir Singh <bsingharora@gmail.com>
Cc: linuxppc-dev@lists.ozlabs.org, mpe@ellerman.id.au,
paulus@samba.org, naveen.n.rao@linux.vnet.ibm.com,
labbott@redhat.com, rashmica.g@gmail.com
Subject: Re: [PATCH v2 5/9] powerpc/vmlinux.lds: Align __init_begin to 16M
Date: Sun, 4 Jun 2017 14:22:14 +1000 [thread overview]
Message-ID: <20170604142205.4c66c31b@roar.ozlabs.ibm.com> (raw)
In-Reply-To: <20170603071843.11966-6-bsingharora@gmail.com>
On Sat, 3 Jun 2017 17:18:39 +1000
Balbir Singh <bsingharora@gmail.com> wrote:
> For CONFIG_STRICT_KERNEL_RWX align __init_begin to 16M.
> We use 16M since its the larger of 2M on radix and 16M
> on hash for our linear mapping. The plan is to have
> .text, .rodata and everything upto __init_begin marked
> as RX. Note we still have executable read only data.
> We could further align read only data to another 16M
> boundary, but then the linker starts using stubs and
> that breaks our assembler code in head_64.S
Is this still the case with powerpc next?
Thanks,
Nick
next prev parent reply other threads:[~2017-06-04 4:22 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-03 7:18 [PATCH v2 0/9] Enable STRICT_KERNEL_RWX Balbir Singh
2017-06-03 7:18 ` [PATCH v2 1/9] powerpc/lib/code-patching: Enhance code patching Balbir Singh
2017-06-03 23:45 ` kbuild test robot
2017-06-07 10:25 ` Christophe LEROY
2017-06-07 11:04 ` Balbir Singh
2017-06-07 11:52 ` Michael Ellerman
2017-06-03 7:18 ` [PATCH v2 2/9] powerpc/kprobes: Move kprobes over to patch_instruction Balbir Singh
2017-06-03 7:18 ` [PATCH v2 3/9] powerpc/kprobes/optprobes: Move " Balbir Singh
2017-06-03 7:18 ` [PATCH v2 4/9] powerpc/xmon: Add patch_instruction supporf for xmon Balbir Singh
2017-06-03 7:18 ` [PATCH v2 5/9] powerpc/vmlinux.lds: Align __init_begin to 16M Balbir Singh
2017-06-04 4:22 ` Nicholas Piggin [this message]
2017-06-04 22:42 ` Balbir Singh
2017-06-05 6:51 ` Nicholas Piggin
2017-06-03 7:18 ` [PATCH v2 6/9] powerpc/platform/pseries/lpar: Fix updatepp and updateboltedpp Balbir Singh
2017-06-03 7:18 ` [PATCH v2 7/9] powerpc/mm/hash: Implement mark_rodata_ro() for hash Balbir Singh
2017-06-03 7:18 ` [PATCH v2 8/9] powerpc/Kconfig: Enable STRICT_KERNEL_RWX Balbir Singh
2017-06-03 7:18 ` [PATCH v2 9/9] powerpc/mm/ptdump: Dump the first entry of the linear mapping as well Balbir Singh
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