From: Anshuman Khandual <khandual@linux.vnet.ibm.com>
To: Ram Pai <linuxram@us.ibm.com>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Cc: dave.hansen@intel.com, paulus@samba.org, aneesh.kumar@linux.vnet.ibm.com
Subject: Re: [RFC PATCH 7/7 v1]powerpc: Deliver SEGV signal on protection key violation.
Date: Fri, 16 Jun 2017 14:50:13 +0530 [thread overview]
Message-ID: <622d7abf-3d99-8897-5afb-ef8c4f950fc0@linux.vnet.ibm.com> (raw)
In-Reply-To: <1496711109-4968-8-git-send-email-linuxram@us.ibm.com>
On 06/06/2017 06:35 AM, Ram Pai wrote:
> The value of the AMR register at the time of the exception
> is made available in gp_regs[PT_AMR] of the siginfo.
But its already available there in uctxt->uc_mcontext.regs->amr
while inside the signal delivery context in the user space. The
pt_regs already got updated with new AMR register. Then why we
need gp_regs to also contain AMR as well ?
next prev parent reply other threads:[~2017-06-16 9:20 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-06 1:05 [RFC PATCH 0/7 v1] powerpc: Memory Protection Keys Ram Pai
2017-06-06 1:05 ` [RFC PATCH 1/7 v1]powerpc: Free up four PTE bits to accommodate memory keys Ram Pai
2017-06-12 6:57 ` Aneesh Kumar K.V
2017-06-12 22:20 ` Ram Pai
2017-06-13 2:02 ` Aneesh Kumar K.V
2017-06-13 21:51 ` Ram Pai
2017-06-13 4:52 ` Aneesh Kumar K.V
2017-06-13 21:52 ` Ram Pai
2017-06-06 1:05 ` [RFC PATCH 2/7 v1]powerpc: Implement sys_pkey_alloc and sys_pkey_free system call Ram Pai
2017-06-06 1:05 ` [RFC PATCH 3/7 v1]powerpc: store and restore the key state across context switches Ram Pai
2017-06-06 1:05 ` [RFC PATCH 4/7 v1]powerpc: Implementation for sys_mprotect_pkey() system call Ram Pai
2017-06-06 1:05 ` [RFC PATCH 5/7 v1]powerpc: Program HPTE key protection bits Ram Pai
2017-06-06 1:05 ` [RFC PATCH 6/7 v1]powerpc: Handle exceptions caused by violation of key protection Ram Pai
2017-06-06 1:05 ` [RFC PATCH 7/7 v1]powerpc: Deliver SEGV signal on protection key violation Ram Pai
2017-06-16 9:20 ` Anshuman Khandual [this message]
2017-06-16 10:33 ` Benjamin Herrenschmidt
2017-06-16 19:15 ` Ram Pai
2017-06-16 22:54 ` Benjamin Herrenschmidt
2017-06-22 21:41 ` Ram Pai
2017-06-16 19:10 ` Ram Pai
2017-06-16 11:18 ` Michael Ellerman
2017-06-16 19:35 ` Ram Pai
2017-06-20 7:07 ` [RFC PATCH 0/7 v1] powerpc: Memory Protection Keys Pavel Machek
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=622d7abf-3d99-8897-5afb-ef8c4f950fc0@linux.vnet.ibm.com \
--to=khandual@linux.vnet.ibm.com \
--cc=aneesh.kumar@linux.vnet.ibm.com \
--cc=dave.hansen@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=linuxram@us.ibm.com \
--cc=paulus@samba.org \
/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: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).