From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Juergen Gross <jgross@suse.com>, <xen-devel@lists.xenproject.org>
Cc: Anthony PERARD <anthony.perard@citrix.com>,
Ian Jackson <ian.jackson@eu.citrix.com>, Wei Liu <wl@xen.org>
Subject: Regression: [PATCH v10 10/12] tools/libxl: use libxenhypfs for setting xen runtime parameters
Date: Thu, 10 Sep 2020 21:09:34 +0100 [thread overview]
Message-ID: <b4f66026-67c1-5284-84d7-9d9af1775904@citrix.com> (raw)
In-Reply-To: <20200519072106.26894-11-jgross@suse.com>
On 19/05/2020 08:21, Juergen Gross wrote:
> Instead of xc_set_parameters() use xenhypfs_write() for setting
> parameters of the hypervisor.
>
> Signed-off-by: Juergen Gross <jgross@suse.com>
Something here isn't right. XenServer's testing for XSA-304 has shown
the following bizarre behaviour.
# xl set-parameters ept=
libxl: error: libxl.c:701:libxl_set_parameters: setting parameters:
Invalid argument
cannot set parameters: ept=
# xl set-parameters ept=exec-sp
# xl set-parameters ept=no-exec-sp
libxl: error: libxl.c:701:libxl_set_parameters: setting parameters: No
space left on device
cannot set parameters: ept=no-exec-sp
Instrumentation shows that the first two examples here enter
parse_ept_param_runtime() with the provided string, while the third
example doesn't.
Given the -ENOSPC, I'm guessing there is some overly small internal
buffer somewhere in the hyperfs infrastructure ?
~Andrew
next prev parent reply other threads:[~2020-09-10 20:10 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-19 7:20 [PATCH v10 00/12] Add hypervisor sysfs-like support Juergen Gross
2020-05-19 7:20 ` [PATCH v10 01/12] xen/vmx: let opt_ept_ad always reflect the current setting Juergen Gross
2020-05-25 2:23 ` Tian, Kevin
2020-05-19 7:20 ` [PATCH v10 02/12] xen: add a generic way to include binary files as variables Juergen Gross
2020-05-19 7:47 ` Jan Beulich
2020-05-19 7:52 ` Jürgen Groß
2020-05-19 7:58 ` Jan Beulich
2020-05-19 8:14 ` Jürgen Groß
2020-05-19 7:20 ` [PATCH v10 03/12] docs: add feature document for Xen hypervisor sysfs-like support Juergen Gross
2020-05-19 7:20 ` [PATCH v10 04/12] xen: add basic hypervisor filesystem support Juergen Gross
2020-05-21 12:51 ` Julien Grall
2020-05-19 7:20 ` [PATCH v10 05/12] libs: add libxenhypfs Juergen Gross
2020-05-30 15:54 ` Andrew Cooper
2020-06-01 5:27 ` Jürgen Groß
2020-05-19 7:21 ` [PATCH v10 06/12] tools: add xenfs tool Juergen Gross
2020-05-19 7:21 ` [PATCH v10 07/12] xen: provide version information in hypfs Juergen Gross
2020-05-29 8:34 ` Jan Beulich
2020-05-29 9:19 ` Jürgen Groß
2020-05-29 9:53 ` Jan Beulich
2020-05-29 9:56 ` Jürgen Groß
2020-05-19 7:21 ` [PATCH v10 08/12] xen: add /buildinfo/config entry to hypervisor filesystem Juergen Gross
2020-06-02 9:03 ` Andrew Cooper
2020-06-02 10:43 ` Jürgen Groß
2020-05-19 7:21 ` [PATCH v10 09/12] xen: add runtime parameter access support to hypfs Juergen Gross
2020-05-21 12:52 ` Julien Grall
2020-05-19 7:21 ` [PATCH v10 10/12] tools/libxl: use libxenhypfs for setting xen runtime parameters Juergen Gross
2020-05-19 8:17 ` Wei Liu
2020-09-10 20:09 ` Andrew Cooper [this message]
2020-09-11 5:40 ` Regression: " Jürgen Groß
2020-05-19 7:21 ` [PATCH v10 11/12] tools/libxc: remove xc_set_parameters() Juergen Gross
2020-05-19 8:09 ` Wei Liu
2020-05-19 7:21 ` [PATCH v10 12/12] xen: remove XEN_SYSCTL_set_parameter support Juergen Gross
2020-05-19 7:30 ` [PATCH v10 00/12] Add hypervisor sysfs-like support Jürgen Groß
2020-05-19 7:45 ` Jan Beulich
2020-05-19 8:06 ` Paul Durrant
2020-05-25 7:02 ` Jürgen Groß
2020-05-26 8:00 ` Paul Durrant
2020-05-26 8:08 ` Jan Beulich
2020-05-26 8:18 ` Jürgen Groß
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