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[Qemu-devel] [PATCH 3/4] curl: Add usage documentation
From: |
Matthew Booth |
Subject: |
[Qemu-devel] [PATCH 3/4] curl: Add usage documentation |
Date: |
Thu, 8 May 2014 09:42:19 +0100 |
Signed-off-by: Matthew Booth <address@hidden>
---
qemu-options.hx | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 72 insertions(+)
diff --git a/qemu-options.hx b/qemu-options.hx
index 781af14..4cc36bf 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -2191,6 +2191,78 @@ qemu-system-x86_64 --drive
file=gluster://192.0.2.1/testvol/a.img
@end example
See also @url{http://www.gluster.org}.
+
address@hidden HTTP/HTTPS/FTP/FTPS/TFTP
+QEMU supports read-only access to files accessed over http(s), ftp(s) and tftp.
+
+Syntax using a single filename:
address@hidden
+<protocol>://[<username>[:<password>]@@]<host>/<path>['['<option>=<value>:<option>=<value>...']']
address@hidden example
+
+where:
address@hidden @option
address@hidden protocol
+'http', 'https', 'ftp', 'ftps', or 'tftp'.
+
address@hidden username
+Optional username for authentication to the remote server.
+
address@hidden password
+Optional password for authentication to the remote server.
+
address@hidden host
+Address of the remote server.
+
address@hidden path
+Path on the remote server, including any query string.
address@hidden table
+
+and options are:
address@hidden @option
address@hidden readahead
+The amount of data to read ahead with each range request to the remote server.
+This value may optionally have the suffix 'T', 'G', 'M', 'K', 'k' or 'b'. If it
+does not have a suffix, it will be assumed to be in bytes. The value must be a
+multiple of 512 bytes. It defaults to 256k.
+
address@hidden sslverify
+Whether to verify the remote server's certificate when connecting over SSL. It
+can have the value 'on' or 'off'. It defaults to 'on'.
address@hidden table
+
+Note that options are enclosed in square brackets. Consequently, if the remote
+URI ends with a block enclosed in square brackets, the square brackets must be
+URI escaped. Otherwise, the block will be interpreted as a set of options.
+
+When passing options to qemu explicitly, @option{driver} is the value of
+<protocol>, the entire URL, i.e.
+<protocol>://[<username>[:<password>]@@]<host>/<path>, is passed in
address@hidden, and @option{readahead} and @option{sslverify} are passed
+separately with values as described above.
+
+Example: boot from a remote Fedora 20 live ISO image
address@hidden
+qemu-system-x86_64 --drive
media=cdrom,file=http://dl.fedoraproject.org/pub/fedora/linux/releases/20/Live/x86_64/Fedora-Live-Desktop-x86_64-20-1.iso,readonly
+
+qemu-system-x86_64 --drive
media=cdrom,file.driver=http,file.url=http://dl.fedoraproject.org/pub/fedora/linux/releases/20/Live/x86_64/Fedora-Live-Desktop-x86_64-20-1.iso,readonly
address@hidden example
+
+Example: boot from a remote Fedora 20 cloud image using a local overlay for
+writes, copy-on-read, and a readahead of 64k
address@hidden
+qemu-img create -f qcow2 -o
backing_file='https://dl.fedoraproject.org/pub/fedora/linux/releases/20/Images/x86_64/Fedora-x86_64-20-20131211.1-sda.qcow2[readahead=64k]'
/tmp/Fedora-x86_64-20-20131211.1-sda.qcow2
+
+qemu-system-x86_64 -drive
file=/tmp/Fedora-x86_64-20-20131211.1-sda.qcow2,copy-on-read=on
address@hidden example
+
+Example: boot from an image stored on a VMware vSphere server with a
self-signed
+certificate using a local overlay for writes and a readahead of 64k
address@hidden
+qemu-img create -f qcow2 -o
backing_file='https://user:password@@vsphere.example.com/folder/test/test-flat.vmdk?dcPath=Datacenter&dsName=datastore1[sslverify=off:readahead=64k]'
/tmp/test.qcow2
+
+qemu-system-x86_64 -drive file=/tmp/test.qcow2
address@hidden example
ETEXI
STEXI
--
1.9.0
- [Qemu-devel] Curl updates, Matthew Booth, 2014/05/08
- [Qemu-devel] [PATCH 3/4] curl: Add usage documentation,
Matthew Booth <=
- [Qemu-devel] [PATCH 2/4] curl: Add sslverify option, Matthew Booth, 2014/05/08
- [Qemu-devel] [PATCH 4/4] curl: Fix build when curl_multi_socket_action isn't available, Matthew Booth, 2014/05/08
- Re: [Qemu-devel] Curl updates, Eric Blake, 2014/05/13
- Re: [Qemu-devel] Curl updates, Kevin Wolf, 2014/05/14
- Re: [Qemu-devel] Curl updates, Eric Blake, 2014/05/14
- Re: [Qemu-devel] Curl updates, Matthew Booth, 2014/05/14
- Re: [Qemu-devel] Curl updates, Kevin Wolf, 2014/05/14
- Re: [Qemu-devel] Curl updates, Matthew Booth, 2014/05/14
- Re: [Qemu-devel] Curl updates, Eric Blake, 2014/05/14
- Re: [Qemu-devel] Curl updates, Eric Blake, 2014/05/14