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qemu/softmmu
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Alexander Graf 4b870dc4d0 hostmem-file: add offset option 
Add an option for hostmem-file to start the memory object at an offset
into the target file. This is useful if multiple memory objects reside
inside the same target file, such as a device node.

In particular, it's useful to map guest memory directly into /dev/mem
for experimentation.

To make this work consistently, also fix up all places in QEMU that
expect fd offsets to be 0.

Signed-off-by: Alexander Graf <graf@amazon.com>
Message-Id: <20230403221421.60877-1-graf@amazon.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
2023-05-23 16:47:03 +02:00
..
arch_init.c softmmu: Add qemu_init_arch_modules() 2022-03-06 13:15:42 +01:00
balloon.c qapi: Restrict balloon-related commands to machine code 2020-09-29 15:41:35 +02:00
bootdevice.c machine: use QAPI struct for boot configuration 2022-05-12 12:29:43 +02:00
cpu-throttle.c Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
cpu-timers.c Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
cpus.c include/block: Untangle inclusion loops 2023-01-20 07:24:28 +01:00
datadir.c meson: Prefix each element of firmware path 2022-07-13 16:58:57 +02:00
device_tree.c device-tree: add re-randomization helper function 2022-10-27 11:34:31 +01:00
dirtylimit.c Use new created qemu_target_pages_to_MiB() 2023-05-15 10:33:04 +02:00
dma-helpers.c dma-helpers: prevent dma_blk_cb() vs dma_aio_cancel() race 2023-02-23 19:49:35 +01:00
globals.c accel/tcg: Use one_insn_per_tb global instead of old singlestep global 2023-05-02 15:47:40 +01:00
icount.c replay: rewrite async event handling 2022-06-06 09:26:53 +02:00
ioport.c softmmu: Add missing trace-events file 2020-09-09 17:15:18 +01:00
main.c ui/cocoa: Run qemu_init in the main thread 2022-09-23 14:36:33 +02:00
memory_mapping.c bulk: Rename TARGET_FMT_plx -> HWADDR_FMT_plx 2023-01-18 11:14:34 +01:00
memory.c hostmem-file: add offset option 2023-05-23 16:47:03 +02:00
meson.build softmmu: Move dirtylimit.c into the target independent source set 2023-04-20 11:25:32 +02:00
physmem.c hostmem-file: add offset option 2023-05-23 16:47:03 +02:00
qdev-monitor.c qdev: Move HMP command completion from monitor to softmmu/ 2023-02-04 07:56:54 +01:00
qemu-seccomp.c seccomp: Get actual errno value from failed seccomp functions 2022-10-26 13:32:58 +01:00
qtest.c softmmu: Make qtest.c target independent 2023-04-20 11:25:32 +02:00
rtc.c replay: Simplify setting replay blockers 2023-02-23 14:10:17 +01:00
runstate-action.c runstate: cleanup reboot and panic actions 2021-01-21 13:00:41 +01:00
runstate-hmp-cmds.c hmp: Add 'one-insn-per-tb' command equivalent to 'singlestep' 2023-05-02 15:47:40 +01:00
runstate.c softmmu: Don't use 'singlestep' global in QMP and HMP commands 2023-05-02 15:47:40 +01:00
timers-state.h qemu/atomic: Add aligned_{int64,uint64}_t types 2021-07-21 07:45:38 -10:00
tpm-hmp-cmds.c tpm: Move HMP commands from monitor/ to softmmu/ 2023-02-04 07:56:54 +01:00
tpm.c qapi: More complex uses of QAPI_LIST_APPEND 2021-01-28 08:08:45 +01:00
trace-events softmmu/dirtylimit: Implement virtual CPU throttle 2022-07-20 12:15:08 +01:00
trace.h softmmu: Add missing trace-events file 2020-09-09 17:15:18 +01:00
vl.c softmmu/vl.c: Disable default NIC if it has not been compiled into the binary 2023-05-22 09:39:15 +02:00
watchpoint.c softmmu: Restore use of CPU watchpoint for all accelerators 2023-03-28 15:24:06 -07:00