From: Pavel Tatashin <pasha.tatashin@oracle.com>
To: Ingo Molnar <mingo@kernel.org>
Cc: Steve Sistare <steven.sistare@oracle.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
mingo@redhat.com, hpa@zytor.com, x86@kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Kosina <jkosina@suse.cz>, Hugh Dickins <hughd@google.com>,
dave.hansen@linux.intel.com, Andy Lutomirski <luto@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH 4.9] x86/pti/efi: broken conversion from efi to kernel page table
Date: Fri, 12 Jan 2018 09:09:37 -0500 [thread overview]
Message-ID: <CAOAebxsNF4Xu7PqcLf4t7d6Nw0s=XbWXH+evtnDu0tkvzVbeGg@mail.gmail.com> (raw)
In-Reply-To: <20180112135847.iecmcq4r2modzw4n@gmail.com>
Hi Ingo,
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/log/?h=linux-4.9.y&ofs=50
4.9 PTI backport is in 4.9.75.
Thank you,
Pavel
On Fri, Jan 12, 2018 at 8:58 AM, Ingo Molnar <mingo@kernel.org> wrote:
>
> * Pavel Tatashin <pasha.tatashin@oracle.com> wrote:
>
>> The page table order must be increased for EFI table in order to avoid a
>> bug where NMI tries to change the page table to kernel page table, while
>> efi page table is active.
>>
>> For more disccussion about this bug, see this thread:
>> http://lkml.iu.edu/hypermail/linux/kernel/1801.1/00951.html
>>
>> Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
>> Reviewed-by: Steven Sistare <steven.sistare@oracle.com>
>> ---
>> arch/x86/include/asm/pgalloc.h | 11 +++++++++++
>> arch/x86/platform/efi/efi_64.c | 2 +-
>> 2 files changed, 12 insertions(+), 1 deletion(-)
>
> Is there a Git tree/branch I could follow to see the very latest v4.9 PTI backport
> commits?
>
> Thanks,
>
> Ingo
next prev parent reply other threads:[~2018-01-12 14:09 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-11 21:58 [PATCH 4.9] x86/pti/efi: broken conversion from efi to kernel page table Pavel Tatashin
2018-01-12 13:58 ` Ingo Molnar
2018-01-12 14:09 ` Pavel Tatashin [this message]
2018-01-12 14:27 ` Jiri Kosina
2018-01-13 13:16 ` Greg KH
2018-01-13 13:18 ` Greg KH
2018-01-13 17:12 ` Greg KH
2018-01-13 17:40 ` Pavel Tatashin
2018-01-13 18:14 ` Greg KH
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