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5d9a9a6170
qemu/include/sysemu
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Michal Privoznik 5d9a9a6170 backends/hostmem: Report error when memory size is unaligned 
If memory-backend-{file,ram} has a size that's not aligned to
underlying page size it is not only wasteful, but also may lead
to hard to debug behaviour. For instance, in case
memory-backend-file and hugepages, madvise() and mbind() fail.
Rightfully so, page is the smallest unit they can work with. And
even though an error is reported, the root cause it not very
clear:

  qemu-system-x86_64: Couldn't set property 'dump' on 'memory-backend-file': Invalid argument

After this commit:

  qemu-system-x86_64: backend 'memory-backend-file' memory size must be multiple of 2 MiB

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Mario Casquero <mcasquer@redhat.com>
Message-ID: <b5b9f9c6bba07879fb43f3c6f496c69867ae3716.1717584048.git.mprivozn@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-06-08 10:33:38 +02:00
..
accel-blocker.h bulk: Do not declare function prototypes using 'extern' keyword 2023-08-31 19:47:43 +02:00
accel-ops.h accel: Introduce cpu_exec_reset_hold() 2023-11-07 12:13:27 +01:00
arch_init.h target/nios2: Remove the deprecated Nios II target 2024-04-24 16:03:38 +02:00
balloon.h qapi: Restrict balloon-related commands to machine code 2020-09-29 15:41:35 +02:00
block-backend-common.h block: drain from main loop thread in bdrv_co_yield_to_drain() 2023-05-30 17:32:02 +02:00
block-backend-global-state.h block: Mark bdrv_first_blk() and bdrv_is_root_node() GRAPH_RDLOCK 2023-10-12 16:31:33 +02:00
block-backend-io.h util/defer-call: move defer_call() to util/ 2023-10-31 15:41:42 +01:00
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
block-ram-registrar.h block: add BlockRAMRegistrar 2022-10-26 14:56:42 -04:00
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-internal.h system: Rename softmmu/ directory as system/ 2023-10-08 21:08:08 +02:00
cpu-timers.h system/replay: Restrict icount to system emulation 2024-01-19 12:28:59 +01:00
cpus.h cpus: Remove unused smp_cores/smp_threads declarations 2023-10-12 00:37:39 +03:00
cryptodev-vhost-user.h cryptodev: Fix Lesser GPL version number 2020-10-27 16:48:49 +01:00
cryptodev-vhost.h include/: spelling fixes 2023-09-08 13:08:52 +03:00
cryptodev.h include/: spelling fixes 2023-09-08 13:08:52 +03:00
device_tree.h kconfig: allow compiling out QEMU device tree code per target 2024-05-10 15:45:15 +02:00
dirtylimit.h migration: Extend query-migrate to provide dirty page limit info 2023-07-26 10:55:56 +02:00
dirtyrate.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
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: Add arch cleanup function 2023-11-14 10:42:32 +01:00
dump.h dump: Allow directly outputting raw kdump format 2023-11-02 18:05:02 +04:00
event-loop-base.h Don't include headers already included by qemu/osdep.h 2023-02-08 07:28:05 +01:00
hostmem.h backends/hostmem: Report error when memory size is unaligned 2024-06-08 10:33:38 +02:00
hvf_int.h accel/hvf: Use accel-specific per-vcpu @dirty field 2024-04-26 17:03:00 +02:00
hvf.h exec: Rename NEED_CPU_H -> COMPILING_PER_TARGET 2024-04-26 09:49:51 +02:00
hw_accel.h accel: Remove HAX accelerator 2023-08-31 19:46:43 +02:00
iommufd.h backends/iommufd: Make iommufd_backend_*() return bool 2024-05-16 16:59:20 +02:00
iothread.h include/: spelling fixes 2023-09-08 13:08:52 +03:00
kvm_int.h kvm: Enable KVM_SET_USER_MEMORY_REGION2 for memslot 2024-04-23 17:35:25 +02:00
kvm_xen.h hw/xen: select kernel mode for per-vCPU event channel upcall vector 2023-11-06 10:03:45 +00:00
kvm.h kvm: move target-dependent interrupt routing out of kvm-all.c 2024-05-03 15:47:48 +02:00
memory_mapping.h memory: follow Error API guidelines 2023-10-19 23:13:27 +02:00
numa.h numa: remove types from typedefs.h 2024-05-03 15:47:48 +02:00
nvmm.h exec: Rename NEED_CPU_H -> COMPILING_PER_TARGET 2024-04-26 09:49:51 +02:00
os-posix.h qemu_init: increase NOFILE soft limit on POSIX 2024-02-09 12:47:58 +00:00
os-win32.h qemu_init: increase NOFILE soft limit on POSIX 2024-02-09 12:47:58 +00:00
qtest.h system/qtest: Restrict QTest API to system emulation 2023-12-20 10:29:23 +01:00
replay.h system/replay: Restrict icount to system emulation 2024-01-19 12:28:59 +01:00
reset.h hw/core/reset: Implement qemu_register_reset via qemu_register_resettable 2024-02-27 13:01:42 +00:00
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: Use time_t for passing and returning time offsets 2023-08-31 09:45:18 +01:00
runstate-action.h system: Rename softmmu/ directory as system/ 2023-10-08 21:08:08 +02:00
runstate.h cpus: vm_resume 2024-01-04 09:52:42 +08:00
seccomp.h
stats.h include/: spelling fixes 2023-09-08 13:08:52 +03:00
sysemu.h stubs: remove obsolete stubs 2024-04-18 11:17:27 +02:00
tcg.h accel: Document generic accelerator headers 2023-06-28 13:55:35 +02:00
tpm_backend.h include/: spelling fixes 2023-09-08 13:08:52 +03:00
tpm_util.h tpm: Fix Lesser GPL version number 2020-11-15 16:44:18 +01:00
tpm.h sysemu/tpm: Clean up global variable shadowing 2023-10-06 13:27:48 +02:00
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 exec: Rename NEED_CPU_H -> COMPILING_PER_TARGET 2024-04-26 09:49:51 +02:00
xen-mapcache.h system: Pass RAM MemoryRegion and is_write in xen_map_cache() 2024-05-06 14:41:39 +02:00
xen.h xen: Add xen_mr_is_memory() 2024-06-04 11:53:34 +02:00