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qemu/include/sysemu
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Stefan Hajnoczi 4f384011c5 block: pass size to bdrv_unregister_buf() 
The only implementor of bdrv_register_buf() is block/nvme.c, where the
size is not needed when unregistering a buffer. This is because
util/vfio-helpers.c can look up mappings by address.

Future block drivers that implement bdrv_register_buf() may not be able
to do their job given only the buffer address. Add a size argument to
bdrv_unregister_buf().

Also document the assumptions about
bdrv_register_buf()/bdrv_unregister_buf() calls. The same <host, size>
values that were given to bdrv_register_buf() must be given to
bdrv_unregister_buf().

gcc 11.2.1 emits a spurious warning that img_bench()'s buf_size local
variable might be uninitialized, so it's necessary to silence the
compiler.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20221013185908.1297568-5-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2022-10-26 14:56:42 -04:00
..
accel-ops.h gdbstub: move guest debug support check to ops 2022-10-06 11:53:41 +01:00
arch_init.h hw/loongarch: Add support loongson3 virt machine type. 2022-06-06 18:09:03 +00:00
balloon.h qapi: Restrict balloon-related commands to machine code 2020-09-29 15:41:35 +02:00
block-backend-common.h block-backend-common.h: split function pointers in BlockDevOps 2022-03-04 18:18:26 +01:00
block-backend-global-state.h block: pass size to bdrv_unregister_buf() 2022-10-26 14:56:42 -04:00
block-backend-io.h block: Reorganize some declarations in block-backend-io.h 2022-07-12 12:14:56 +02:00
block-backend.h include/sysemu/block-backend: split header into I/O and global state (GS) API 2022-03-04 18:18:25 +01:00
blockdev.h include/sysemu/blockdev.h: global state API 2022-03-04 18:18:25 +01:00
cpu-throttle.h cpu-throttle: new module, extracted from cpus.c 2020-07-10 18:04:49 -04:00
cpu-timers.h replay: notify vCPU when BH is scheduled 2022-06-06 09:26:53 +02:00
cpus.h gdbstub: move breakpoint logic to accel ops 2022-10-06 11:53:41 +01:00
cryptodev-vhost-user.h cryptodev: Fix Lesser GPL version number 2020-10-27 16:48:49 +01:00
cryptodev-vhost.h cryptodev: Fix Lesser GPL version number 2020-10-27 16:48:49 +01:00
cryptodev.h crypto: Introduce RSA algorithm 2022-06-16 12:54:58 -04:00
device_tree.h qmp/hmp, device_tree.c: introduce dumpdtb 2022-10-17 16:15:10 -03:00
dirtylimit.h softmmu/dirtylimit: Implement virtual CPU throttle 2022-07-20 12:15:08 +01:00
dirtyrate.h migration/dirtyrate: Refactor dirty page rate calculation 2022-07-20 12:15:08 +01:00
dma.h hw/dma: Let dma_buf_read() / dma_buf_write() propagate MemTxResult 2022-01-18 12:56:29 +01:00
dump-arch.h
dump.h dump: Rework filter area variables 2022-10-06 19:30:43 +04:00
event-loop-base.h util/event-loop-base: Introduce options to set the thread pool size 2022-05-09 10:43:23 +01:00
hax.h accel/hax: Introduce CONFIG_HAX_IS_POSSIBLE 2022-03-06 13:15:42 +01:00
hostmem.h hostmem: Wire up RAM_NORESERVE via "reserve" property 2021-06-15 20:27:38 +02:00
hvf_int.h arm/hvf: Add a WFI handler 2021-09-21 16:28:26 +01:00
hvf.h include/sysemu: Poison all accelerator CONFIG switches in common code 2021-05-14 12:31:44 +02:00
hw_accel.h accel: Introduce AccelOpsClass::cpus_are_resettable() 2022-03-06 13:15:42 +01:00
iothread.h Introduce event-loop-base abstract class 2022-05-09 10:43:23 +01:00
kvm_int.h kvm: expose struct KVMState 2022-10-11 09:36:00 +02:00
kvm.h kvm: allow target-specific accelerator properties 2022-10-10 09:23:16 +02:00
memory_mapping.h sysemu/memory_mapping: Become target-agnostic 2022-03-06 13:15:42 +01:00
numa.h numa: drop support for '-numa node' (without memory specified) 2020-09-30 19:09:20 +02:00
nvmm.h Only check CONFIG_NVMM when NEED_CPU_H is defined 2021-09-13 13:56:26 +02:00
os-posix.h block: move fcntl_setfl() 2022-05-03 15:17:53 +04:00
os-win32.h util/qemu-sockets: Enable unix socket support on Windows 2022-09-02 15:54:46 +04:00
qtest.h cpu-timers, icount: new modules 2020-10-05 16:41:22 +02:00
replay.h chardev: src buffer const for write functions 2022-09-29 14:38:05 +04:00
reset.h
rng-random.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
rng.h qom: Remove module_obj_name parameter from OBJECT_DECLARE* macros 2020-09-18 14:12:32 -04:00
rtc.h rtc: Move RTC function prototypes to their own header 2022-01-28 14:29:46 +00:00
runstate-action.h vl: Add option to avoid stopping VM upon guest panic 2020-12-15 12:51:58 -05:00
runstate.h whpx: Added support for breakpoints and stepping 2022-04-06 14:31:55 +02:00
seccomp.h
sysemu.h ui/cocoa: Run qemu_init in the main thread 2022-09-23 14:36:33 +02:00
tcg.h accel/tcg: Merge tcg_exec_init into tcg_init_machine 2021-06-11 09:26:28 -07:00
tpm_backend.h sysemu: Make TPM structures inaccessible if CONFIG_TPM is not defined 2021-06-15 10:55:12 -04:00
tpm_util.h tpm: Fix Lesser GPL version number 2020-11-15 16:44:18 +01:00
tpm.h sysemu: tpm: Add a stub function for TPM_IS_CRB 2022-05-06 09:06:50 -06:00
vhost-user-backend.h qom: Remove module_obj_name parameter from OBJECT_DECLARE* macros 2020-09-18 14:12:32 -04:00
watchdog.h watchdog: remove -watchdog option 2022-09-29 11:40:28 +02:00
whpx.h include/sysemu: Poison all accelerator CONFIG switches in common code 2021-05-14 12:31:44 +02:00
xen-mapcache.h include: Make headers more self-contained 2019-08-16 13:31:51 +02:00
xen.h sysemu/xen: Add missing 'exec/cpu-common.h' header for ram_addr_t type 2020-09-30 19:11:36 +02:00