From: Jason Yan <yanaijie@huawei.com> To: <mpe@ellerman.id.au>, <linuxppc-dev@lists.ozlabs.org>, <diana.craciun@nxp.com>, <christophe.leroy@c-s.fr>, <benh@kernel.crashing.org>, <paulus@samba.org>, <npiggin@gmail.com>, <keescook@chromium.org>, <kernel-hardening@lists.openwall.com>, <oss@buserror.net> Cc: <linux-kernel@vger.kernel.org>, <zhaohongjiang@huawei.com>, Jason Yan <yanaijie@huawei.com> Subject: [PATCH v3 5/6] powerpc/fsl_booke/64: clear the original kernel if randomized Date: Thu, 6 Feb 2020 10:58:24 +0800 [thread overview] Message-ID: <20200206025825.22934-6-yanaijie@huawei.com> (raw) In-Reply-To: <20200206025825.22934-1-yanaijie@huawei.com> The original kernel still exists in the memory, clear it now. Signed-off-by: Jason Yan <yanaijie@huawei.com> Cc: Scott Wood <oss@buserror.net> Cc: Diana Craciun <diana.craciun@nxp.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Kees Cook <keescook@chromium.org> --- arch/powerpc/mm/nohash/kaslr_booke.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/mm/nohash/kaslr_booke.c b/arch/powerpc/mm/nohash/kaslr_booke.c index c6f5c1db1394..ed1277059368 100644 --- a/arch/powerpc/mm/nohash/kaslr_booke.c +++ b/arch/powerpc/mm/nohash/kaslr_booke.c @@ -378,8 +378,10 @@ notrace void __init kaslr_early_init(void *dt_ptr, phys_addr_t size) unsigned int *__kaslr_offset = (unsigned int *)(KERNELBASE + 0x58); unsigned int *__run_at_load = (unsigned int *)(KERNELBASE + 0x5c); - if (*__run_at_load == 1) + if (*__run_at_load == 1) { + kaslr_late_init(); return; + } /* Setup flat device-tree pointer */ initial_boot_params = dt_ptr; -- 2.17.2
WARNING: multiple messages have this Message-ID (diff)
From: Jason Yan <yanaijie@huawei.com> To: <mpe@ellerman.id.au>, <linuxppc-dev@lists.ozlabs.org>, <diana.craciun@nxp.com>, <christophe.leroy@c-s.fr>, <benh@kernel.crashing.org>, <paulus@samba.org>, <npiggin@gmail.com>, <keescook@chromium.org>, <kernel-hardening@lists.openwall.com>, <oss@buserror.net> Cc: Jason Yan <yanaijie@huawei.com>, linux-kernel@vger.kernel.org, zhaohongjiang@huawei.com Subject: [PATCH v3 5/6] powerpc/fsl_booke/64: clear the original kernel if randomized Date: Thu, 6 Feb 2020 10:58:24 +0800 [thread overview] Message-ID: <20200206025825.22934-6-yanaijie@huawei.com> (raw) In-Reply-To: <20200206025825.22934-1-yanaijie@huawei.com> The original kernel still exists in the memory, clear it now. Signed-off-by: Jason Yan <yanaijie@huawei.com> Cc: Scott Wood <oss@buserror.net> Cc: Diana Craciun <diana.craciun@nxp.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Kees Cook <keescook@chromium.org> --- arch/powerpc/mm/nohash/kaslr_booke.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/mm/nohash/kaslr_booke.c b/arch/powerpc/mm/nohash/kaslr_booke.c index c6f5c1db1394..ed1277059368 100644 --- a/arch/powerpc/mm/nohash/kaslr_booke.c +++ b/arch/powerpc/mm/nohash/kaslr_booke.c @@ -378,8 +378,10 @@ notrace void __init kaslr_early_init(void *dt_ptr, phys_addr_t size) unsigned int *__kaslr_offset = (unsigned int *)(KERNELBASE + 0x58); unsigned int *__run_at_load = (unsigned int *)(KERNELBASE + 0x5c); - if (*__run_at_load == 1) + if (*__run_at_load == 1) { + kaslr_late_init(); return; + } /* Setup flat device-tree pointer */ initial_boot_params = dt_ptr; -- 2.17.2
next prev parent reply other threads:[~2020-02-06 2:59 UTC|newest] Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-02-06 2:58 [PATCH v3 0/6] implement KASLR for powerpc/fsl_booke/64 Jason Yan 2020-02-06 2:58 ` Jason Yan 2020-02-06 2:58 ` [PATCH v3 1/6] powerpc/fsl_booke/kaslr: refactor kaslr_legal_offset() and kaslr_early_init() Jason Yan 2020-02-06 2:58 ` Jason Yan 2020-02-20 13:40 ` Christophe Leroy 2020-02-26 2:11 ` Jason Yan 2020-02-26 2:11 ` Jason Yan 2020-02-06 2:58 ` [PATCH v3 2/6] powerpc/fsl_booke/64: introduce reloc_kernel_entry() helper Jason Yan 2020-02-06 2:58 ` Jason Yan 2020-02-20 13:41 ` Christophe Leroy 2020-02-06 2:58 ` [PATCH v3 3/6] powerpc/fsl_booke/64: implement KASLR for fsl_booke64 Jason Yan 2020-02-06 2:58 ` Jason Yan 2020-02-20 13:48 ` Christophe Leroy 2020-02-26 2:40 ` Jason Yan 2020-02-26 2:40 ` Jason Yan 2020-02-26 3:33 ` Jason Yan 2020-02-26 3:33 ` Jason Yan 2020-02-26 5:04 ` [RFC PATCH] Use IS_ENABLED() instead of #ifdefs Christophe Leroy 2020-02-26 5:04 ` Christophe Leroy 2020-02-26 6:26 ` Jason Yan 2020-02-26 6:26 ` Jason Yan 2020-02-26 5:10 ` [PATCH v3 3/6] powerpc/fsl_booke/64: implement KASLR for fsl_booke64 Christophe Leroy 2020-02-26 5:08 ` Christophe Leroy 2020-03-04 21:44 ` Scott Wood 2020-03-04 21:44 ` Scott Wood 2020-03-05 2:32 ` Jason Yan 2020-03-05 2:32 ` Jason Yan 2020-02-06 2:58 ` [PATCH v3 4/6] powerpc/fsl_booke/64: do not clear the BSS for the second pass Jason Yan 2020-02-06 2:58 ` Jason Yan 2020-03-04 21:49 ` Scott Wood 2020-03-04 21:49 ` Scott Wood 2020-03-05 3:14 ` Jason Yan 2020-03-05 3:14 ` Jason Yan 2020-02-06 2:58 ` Jason Yan [this message] 2020-02-06 2:58 ` [PATCH v3 5/6] powerpc/fsl_booke/64: clear the original kernel if randomized Jason Yan 2020-02-20 13:49 ` Christophe Leroy 2020-02-26 2:44 ` Jason Yan 2020-02-26 2:44 ` Jason Yan 2020-03-04 21:53 ` Scott Wood 2020-03-04 21:53 ` Scott Wood 2020-03-05 3:20 ` Jason Yan 2020-03-05 3:20 ` Jason Yan 2020-02-06 2:58 ` [PATCH v3 6/6] powerpc/fsl_booke/kaslr: rename kaslr-booke32.rst to kaslr-booke.rst and add 64bit part Jason Yan 2020-02-06 2:58 ` Jason Yan 2020-02-20 13:50 ` Christophe Leroy 2020-02-26 2:46 ` Jason Yan 2020-02-26 2:46 ` Jason Yan 2020-02-13 3:00 ` [PATCH v3 0/6] implement KASLR for powerpc/fsl_booke/64 Jason Yan 2020-02-13 3:00 ` Jason Yan 2020-02-20 3:33 ` Jason Yan 2020-02-20 3:33 ` Jason Yan 2020-02-26 7:16 ` Daniel Axtens 2020-02-26 7:16 ` Daniel Axtens 2020-02-26 8:18 ` Jason Yan 2020-02-26 8:18 ` Jason Yan 2020-02-26 11:41 ` Daniel Axtens 2020-02-27 1:55 ` Jason Yan 2020-02-27 1:55 ` Jason Yan 2020-02-28 5:53 ` Scott Wood 2020-02-28 5:53 ` Scott Wood 2020-02-28 6:47 ` Jason Yan 2020-02-28 6:47 ` Jason Yan 2020-02-29 4:28 ` Scott Wood 2020-02-29 4:28 ` Scott Wood 2020-02-29 7:27 ` Jason Yan 2020-02-29 7:27 ` Jason Yan 2020-02-29 22:54 ` Scott Wood 2020-02-29 22:54 ` Scott Wood 2020-03-02 2:17 ` Jason Yan 2020-03-02 2:17 ` Jason Yan 2020-03-02 3:24 ` Scott Wood 2020-03-02 3:24 ` Scott Wood 2020-03-02 7:12 ` Jason Yan 2020-03-02 7:12 ` Jason Yan 2020-03-02 8:47 ` Scott Wood 2020-03-02 8:47 ` Scott Wood 2020-03-02 9:37 ` Jason Yan 2020-03-02 9:37 ` Jason Yan 2020-03-04 21:21 ` Scott Wood 2020-03-04 21:21 ` Scott Wood 2020-03-05 3:22 ` Jason Yan 2020-03-05 3:22 ` Jason Yan
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20200206025825.22934-6-yanaijie@huawei.com \ --to=yanaijie@huawei.com \ --cc=benh@kernel.crashing.org \ --cc=christophe.leroy@c-s.fr \ --cc=diana.craciun@nxp.com \ --cc=keescook@chromium.org \ --cc=kernel-hardening@lists.openwall.com \ --cc=linux-kernel@vger.kernel.org \ --cc=linuxppc-dev@lists.ozlabs.org \ --cc=mpe@ellerman.id.au \ --cc=npiggin@gmail.com \ --cc=oss@buserror.net \ --cc=paulus@samba.org \ --cc=zhaohongjiang@huawei.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.