Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1192583
| Path | csiph.com!aioe.org!news.servidellagleba.it!bofh.it!news.nic.it!robomod |
|---|---|
| From | Andy Lutomirski <luto@kernel.org> |
| Newsgroups | linux.kernel |
| Subject | [PATCH 0/2] x86_64, xen: Simplify Xen SYSCALL handling |
| Date | Mon, 27 Jul 2015 01:30:02 +0200 |
| Message-ID | <pQDwK-NF-11@gated-at.bofh.it> (permalink) |
| X-Original-To | X86 ML <x86@kernel.org>, "xen-devel@lists.xen.org" <xen-devel@lists.xen.org>, Andrew Cooper <andrew.cooper3@citrix.com> |
| X-Mailer | git-send-email 2.4.3 |
| Sender | robomod@news.nic.it |
| List-ID | <linux-kernel.vger.kernel.org> |
| X-Mailing-List | linux-kernel@vger.kernel.org |
| Approved | robomod@news.nic.it |
| Lines | 24 |
| Organization | linux.* mail to news gateway |
| X-Original-Cc | Boris Ostrovsky <boris.ostrovsky@oracle.com>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, Borislav Petkov <bp@alien8.de>, Steven Rostedt <rostedt@goodmis.org>, Andy Lutomirski <luto@kernel.org> |
| X-Original-Date | Sun, 26 Jul 2015 16:29:08 -0700 |
| X-Original-Message-ID | <cover.1437951794.git.luto@kernel.org> |
| X-Original-Sender | linux-kernel-owner@vger.kernel.org |
| Xref | aioe.org linux.kernel:1192583 |
Show key headers only | View raw
Xen's SYSCALL hooks are overcomplicated and add unnecessary places where RSP is user controlled. Simplify it and get rid of those user RSP code paths under Xen. Tested as an Intel KVM guest. Not tested under Xen or on AMD, both of which are important. Andy Lutomirski (2): x86/entry/64: Rearrange SYSCALL entry points for Xen's benefit x86/xen/64: Rearrange the SYSCALL entries arch/x86/entry/entry_64.S | 29 +++++++++++++++-------------- arch/x86/entry/entry_64_compat.S | 12 +++++++----- arch/x86/xen/xen-asm_64.S | 24 ++++++++++-------------- 3 files changed, 32 insertions(+), 33 deletions(-) -- 2.4.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread
[PATCH 0/2] x86_64, xen: Simplify Xen SYSCALL handling Andy Lutomirski <luto@kernel.org> - 2015-07-27 01:30 +0200 [PATCH 1/2] x86/entry/64: Rearrange SYSCALL entry points for Xen's benefit Andy Lutomirski <luto@kernel.org> - 2015-07-27 01:30 +0200 [PATCH 2/2] x86/xen/64: Rearrange the SYSCALL entries Andy Lutomirski <luto@kernel.org> - 2015-07-27 01:30 +0200
csiph-web