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authorPeter Maydell <peter.maydell@linaro.org>2020-07-07 19:47:26 +0100
committerPeter Maydell <peter.maydell@linaro.org>2020-07-07 19:47:26 +0100
commiteb2c66b10efd2b914b56b20ae90655914310c925 (patch)
treea38137749a29cbce8fa744a8fbf1866465962b68 /docs
parentc8eaf81fd22638691c5bdcc7d723d31fbb80ff6f (diff)
parent365fed5111b06d31c1632af63c7528dfe49d62a2 (diff)
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Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2020-07-06' into staging
Block patches for 5.1: - LUKS keyslot amendment (+ patches to make the iotests pass on non-Linux systems, and to keep the tests passing for qcow v1, and to skip LUKS tests (including qcow2 LUKS) when the built qemu does not support it) - Refactoring in the block layer: Drop the basically unnecessary unallocated_blocks_are_zero field from BlockDriverInfo - Fix qcow2 preallocation when the image size is not a multiple of the cluster size - Fix in block-copy code # gpg: Signature made Mon 06 Jul 2020 11:02:53 BST # gpg: using RSA key 91BEB60A30DB3E8857D11829F407DB0061D5CF40 # gpg: issuer "mreitz@redhat.com" # gpg: Good signature from "Max Reitz <mreitz@redhat.com>" [full] # Primary key fingerprint: 91BE B60A 30DB 3E88 57D1 1829 F407 DB00 61D5 CF40 * remotes/maxreitz/tags/pull-block-2020-07-06: (31 commits) qed: Simplify backing reads block: drop unallocated_blocks_are_zero block/vhdx: drop unallocated_blocks_are_zero block/file-posix: drop unallocated_blocks_are_zero block/iscsi: drop unallocated_blocks_are_zero block/crypto: drop unallocated_blocks_are_zero block/vpc: return ZERO block-status when appropriate block/vdi: return ZERO block-status when appropriate block: inline bdrv_unallocated_blocks_are_zero() qemu-img: convert: don't use unallocated_blocks_are_zero iotests: add tests for blockdev-amend block/qcow2: implement blockdev-amend block/crypto: implement blockdev-amend block/core: add generic infrastructure for x-blockdev-amend qmp command iotests: qemu-img tests for luks key management block/qcow2: extend qemu-img amend interface with crypto options block/crypto: implement the encryption key management block/crypto: rename two functions block/amend: refactor qcow2 amend options block/amend: separate amend and create options for qemu-img ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'docs')
-rw-r--r--docs/tools/qemu-img.rst5
1 files changed, 4 insertions, 1 deletions
diff --git a/docs/tools/qemu-img.rst b/docs/tools/qemu-img.rst
index 7f07374..e33f557 100644
--- a/docs/tools/qemu-img.rst
+++ b/docs/tools/qemu-img.rst
@@ -253,11 +253,14 @@ Command description:
.. program:: qemu-img-commands
-.. option:: amend [--object OBJECTDEF] [--image-opts] [-p] [-q] [-f FMT] [-t CACHE] -o OPTIONS FILENAME
+.. option:: amend [--object OBJECTDEF] [--image-opts] [-p] [-q] [-f FMT] [-t CACHE] [--force] -o OPTIONS FILENAME
Amends the image format specific *OPTIONS* for the image file
*FILENAME*. Not all file formats support this operation.
+ --force allows some unsafe operations. Currently for -f luks, it allows to
+ erase the last encryption key, and to overwrite an active encryption key.
+
.. option:: bench [-c COUNT] [-d DEPTH] [-f FMT] [--flush-interval=FLUSH_INTERVAL] [-i AIO] [-n] [--no-drain] [-o OFFSET] [--pattern=PATTERN] [-q] [-s BUFFER_SIZE] [-S STEP_SIZE] [-t CACHE] [-w] [-U] FILENAME
Run a simple sequential I/O benchmark on the specified image. If ``-w`` is