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From: Luiz Capitulino <lcapitulino@redhat.com>
To: aliguori@us.ibm.com
Cc: qemu-devel@nongnu.org
Subject: [Qemu-devel] [PULL 09/15] qmp: dump-guest-memory: improve schema doc (again)
Date: Thu, 27 Sep 2012 10:28:23 -0300	[thread overview]
Message-ID: <1348752509-1142-10-git-send-email-lcapitulino@redhat.com> (raw)
In-Reply-To: <1348752509-1142-1-git-send-email-lcapitulino@redhat.com>

 o Add a note about memory allocation with paging=true
 o Fix indentation

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
---
 qapi-schema.json | 32 ++++++++++++++++++++------------
 1 file changed, 20 insertions(+), 12 deletions(-)

diff --git a/qapi-schema.json b/qapi-schema.json
index 191d921..c6a6767 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -2007,26 +2007,33 @@
 # supported on i386 and x86_64.
 #
 # @paging: if true, do paging to get guest's memory mapping. This allows
-# using gdb to process the core file. However, setting @paging to false
-# may be desirable because of two reasons:
+#          using gdb to process the core file.
 #
-#   1. The guest may be in a catastrophic state or can have corrupted
-#      memory, which cannot be trusted
-#   2. The guest can be in real-mode even if paging is enabled. For example,
-#      the guest uses ACPI to sleep, and ACPI sleep state goes in real-mode
+#          IMPORTANT: this option can make QEMU allocate several gigabytes
+#                     of RAM. This can happen for a large guest, or a
+#                     malicious guest pretending to be large.
+#
+#          Also, paging=true has the following limitations:
+#
+#             1. The guest may be in a catastrophic state or can have corrupted
+#                memory, which cannot be trusted
+#             2. The guest can be in real-mode even if paging is enabled. For
+#                example, the guest uses ACPI to sleep, and ACPI sleep state
+#                goes in real-mode
 #
 # @protocol: the filename or file descriptor of the vmcore. The supported
-# protocols are:
+#            protocols are:
 #
-#   1. file: the protocol starts with "file:", and the following string is
-#      the file's path.
-#   2. fd: the protocol starts with "fd:", and the following string is the
-#      fd's name.
+#            1. file: the protocol starts with "file:", and the following
+#               string is the file's path.
+#            2. fd: the protocol starts with "fd:", and the following string
+#               is the fd's name.
 #
 # @begin: #optional if specified, the starting physical address.
 #
 # @length: #optional if specified, the memory size, in bytes. If you don't
-# want to dump all guest's memory, please specify the start @begin and @length
+#          want to dump all guest's memory, please specify the start @begin
+#          and @length
 #
 # Returns: nothing on success
 #
@@ -2035,6 +2042,7 @@
 { 'command': 'dump-guest-memory',
   'data': { 'paging': 'bool', 'protocol': 'str', '*begin': 'int',
             '*length': 'int' } }
+
 ##
 # @netdev_add:
 #
-- 
1.7.12.315.g682ce8b

  parent reply	other threads:[~2012-09-27 13:28 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-27 13:28 [Qemu-devel] [PULL 00/15]: QMP queue Luiz Capitulino
2012-09-27 13:28 ` [Qemu-devel] [PULL 01/15] Make negotiation optional in QEMUMonitorProtocol Luiz Capitulino
2012-09-27 13:28 ` [Qemu-devel] [PULL 02/15] Support settimeout " Luiz Capitulino
2012-09-27 13:28 ` [Qemu-devel] [PULL 03/15] Add qemu-ga-client script Luiz Capitulino
2012-09-27 13:28 ` [Qemu-devel] [PULL 04/15] qapi: do not protect enum values from namespace pollution Luiz Capitulino
2012-09-27 13:28 ` [Qemu-devel] [PULL 05/15] qapi: add "unix" to the set of reserved words Luiz Capitulino
2012-09-27 13:28 ` [Qemu-devel] [PULL 06/15] pci-assign: use monitor_handle_fd_param Luiz Capitulino
2012-09-27 13:28 ` [Qemu-devel] [PULL 07/15] monitor: add Error * argument to monitor_get_fd Luiz Capitulino
2012-09-27 13:28 ` [Qemu-devel] [PULL 08/15] qapi: convert add_client Luiz Capitulino
2012-09-27 13:28 ` Luiz Capitulino [this message]
2012-09-27 13:28 ` [Qemu-devel] [PULL 10/15] qmp: dump-guest-memory: don't spin if non-blocking fd would block Luiz Capitulino
2012-09-27 13:28 ` [Qemu-devel] [PULL 11/15] hmp: dump-guest-memory: hardcode protocol argument to "file:" Luiz Capitulino
2012-09-28 17:17   ` Eric Blake
2012-09-27 13:28 ` [Qemu-devel] [PULL 12/15] input: qmp_send_key(): simplify Luiz Capitulino
2012-09-27 13:28 ` [Qemu-devel] [PULL 13/15] qmp: qmp_send_key(): accept key codes in hex Luiz Capitulino
2012-09-28 10:36   ` Amos Kong
2012-09-28 13:01     ` Eric Blake
2012-09-28 13:30       ` Luiz Capitulino
2012-09-28 13:24     ` Luiz Capitulino
2012-09-28 13:30       ` Amos Kong
2012-09-27 13:28 ` [Qemu-devel] [PULL 14/15] input: index_from_key(): drop unused code Luiz Capitulino
2012-09-27 13:28 ` [Qemu-devel] [PULL 15/15] block: live snapshot documentation tweaks Luiz Capitulino
2012-10-05  2:12 ` [Qemu-devel] [PULL 00/15]: QMP queue Anthony Liguori

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