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| author | Michael S. Tsirkin <mst@redhat.com> | 2017-01-12 19:24:14 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2017-01-18 22:59:53 +0200 |
| commit | baf2d5bfbac015b27f4db74feab235e167df0c84 (patch) | |
| tree | 960da45b349ef3fd469b3eae0a91df6205c5261b /include/hw/nvram | |
| parent | c471ad0e9bd46ca5f5c9c796e727230e043a091d (diff) | |
| download | qemu-baf2d5bfbac015b27f4db74feab235e167df0c84.tar.gz | |
fw-cfg: support writeable blobs
Useful to send guest data back to QEMU.
Changes from Laszlo Ersek <lersek@redhat.com>:
- rebase the patch from Michael Tsirkin's original postings at [1] and [2]
to the following patches:
- loader: Allow a custom AddressSpace when loading ROMs
- loader: Add AddressSpace loading support to uImages
- loader: fix handling of custom address spaces when adding ROM blobs
- reject such writes immediately that would exceed the end of the array,
rather than performing a partial write before setting the error bit: see
the (len != dma.length) condition
- document the write interface
[1] http://lists.nongnu.org/archive/html/qemu-devel/2016-02/msg04968.html
[2] http://lists.nongnu.org/archive/html/qemu-devel/2016-03/msg02735.html
Cc: "Gabriel L. Somlo" <somlo@cmu.edu>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Shannon Zhao <zhaoshenglong@huawei.com>
Cc: qemu-arm@nongnu.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Acked-by: Gabriel Somlo <somlo@cmu.edu>
Tested-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'include/hw/nvram')
| -rw-r--r-- | include/hw/nvram/fw_cfg.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/hw/nvram/fw_cfg.h b/include/hw/nvram/fw_cfg.h index 5c27a1f0d5..b980cbaebf 100644 --- a/include/hw/nvram/fw_cfg.h +++ b/include/hw/nvram/fw_cfg.h @@ -136,6 +136,7 @@ void fw_cfg_add_file(FWCfgState *s, const char *filename, void *data, * @callback_opaque: argument to be passed into callback function * @data: pointer to start of item data * @len: size of item data + * @read_only: is file read only * * Add a new NAMED fw_cfg item as a raw "blob" of the given size. The data * referenced by the starting pointer is only linked, NOT copied, into the @@ -151,7 +152,7 @@ void fw_cfg_add_file(FWCfgState *s, const char *filename, void *data, */ void fw_cfg_add_file_callback(FWCfgState *s, const char *filename, FWCfgReadCallback callback, void *callback_opaque, - void *data, size_t len); + void *data, size_t len, bool read_only); /** * fw_cfg_modify_file: |