riscv/qemu: QEMU main repository: Please see https://www.qemu.org/docs/master/devel/submitting-a-patch.html for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website. http://www.qemu.org - qemu

QEMU main repository: Please see https://www.qemu.org/docs/master/devel/submitting-a-patch.html for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website. http://www.qemu.org

emulation kvm qemu virtualization

History

Kevin Wolf 86b1cf3227 block: Separate blk_is_writable() and blk_supports_write_perm() Currently, blk_is_read_only() tells whether a given BlockBackend can only be used in read-only mode because its root node is read-only. Some callers actually try to answer a slightly different question: Is the BlockBackend configured to be writable, by taking write permissions on the root node? This can differ, for example, for CD-ROM devices which don't take write permissions, but may be backed by a writable image file. scsi-cd allows write requests to the drive if blk_is_read_only() returns false. However, the write request will immediately run into an assertion failure because the write permission is missing. This patch introduces separate functions for both questions. blk_supports_write_perm() answers the question whether the block node/image file can support writable devices, whereas blk_is_writable() tells whether the BlockBackend is currently configured to be writable. All calls of blk_is_read_only() are converted to one of the two new functions. Fixes: https://bugs.launchpad.net/bugs/1906693 Cc: qemu-stable@nongnu.org Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20210118123448.307825-2-kwolf@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>		5 years ago
..
authz	authz: Fix Lesser GPL version number	6 years ago
block	block/block-copy: drop unused argument of block_copy()	5 years ago
chardev	chardev: do not use machine_init_done	5 years ago
crypto	qom: Remove module_obj_name parameter from OBJECT_DECLARE* macros	6 years ago
disas	disas: Push const down through host disassembly	5 years ago
exec	accel/tcg: Restrict cpu_io_recompile() from other accelerators	5 years ago
fpu	softfloat: Define comparison operations for bfloat16	6 years ago
hw	hw/sd: sd.h: Cosmetic change of using spaces	5 years ago
io	io: Document qmp oob suitability of qio_channel_shutdown and io_shutdown	5 years ago
libdecnumber	include: Make headers more self-contained	7 years ago
migration	migration: Replace migration's JSON writer by the general one	5 years ago
monitor	sev: add sev-inject-launch-secret	5 years ago
net	net: checksum: Introduce fine control over checksum type	5 years ago
qapi	qobject: Make QString immutable	5 years ago
qemu	SD/MMC patches	5 years ago
qom	qom: Add user_creatable_print_help_from_qdict()	6 years ago
scsi	scsi/utils: Add INVALID_PARAM_VALUE sense code definition	5 years ago
standard-headers	Update linux headers to 5.11-rc2	5 years ago
sysemu	block: Separate blk_is_writable() and blk_supports_write_perm()	5 years ago
tcg	tcg: Restart code generation when we run out of temps	5 years ago
ui	vnc: support "-vnc help"	5 years ago
user	trace: switch position of headers to what Meson requires	6 years ago
elf.h	target-arm queue:	6 years ago
glib-compat.h	glib-compat: add g_unix_get_passwd_entry_qemu()	6 years ago
qemu-common.h	vl: extract softmmu/datadir.c	5 years ago
qemu-io.h	Include qemu-common.h exactly where needed	7 years ago
trace-tcg.h	trace: get rid of generated-events.h/generated-events.c	10 years ago