qemu/hw/xen
Peng Fan 9253d83062 xen: Drop out of coroutine context xen_invalidate_map_cache_entry
xen_invalidate_map_cache_entry is not expected to run in a
coroutine. Without this, there is crash:

    signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
    threadid=<optimized out>) at pthread_kill.c:78
    at /usr/src/debug/glibc/2.38+git-r0/sysdeps/posix/raise.c:26
    fmt=0xffff9e1ca8a8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n",
    assertion=assertion@entry=0xaaaae0d25740 "!qemu_in_coroutine()",
    file=file@entry=0xaaaae0d301a8 "../qemu-xen-dir-remote/block/graph-lock.c", line=line@entry=260,
    function=function@entry=0xaaaae0e522c0 <__PRETTY_FUNCTION__.3> "bdrv_graph_rdlock_main_loop") at assert.c:92
    assertion=assertion@entry=0xaaaae0d25740 "!qemu_in_coroutine()",
    file=file@entry=0xaaaae0d301a8 "../qemu-xen-dir-remote/block/graph-lock.c", line=line@entry=260,
    function=function@entry=0xaaaae0e522c0 <__PRETTY_FUNCTION__.3> "bdrv_graph_rdlock_main_loop") at assert.c:101
    at ../qemu-xen-dir-remote/block/graph-lock.c:260
    at /home/Freenix/work/sw-stash/xen/upstream/tools/qemu-xen-dir-remote/include/block/graph-lock.h:259
    host=host@entry=0xffff742c8000, size=size@entry=2097152)
    at ../qemu-xen-dir-remote/block/io.c:3362
    host=0xffff742c8000, size=2097152)
    at ../qemu-xen-dir-remote/block/block-backend.c:2859
    host=<optimized out>, size=<optimized out>, max_size=<optimized out>)
    at ../qemu-xen-dir-remote/block/block-ram-registrar.c:33
    size=2097152, max_size=2097152)
    at ../qemu-xen-dir-remote/hw/core/numa.c:883
    buffer=buffer@entry=0xffff743c5000 "")
    at ../qemu-xen-dir-remote/hw/xen/xen-mapcache.c:475
    buffer=buffer@entry=0xffff743c5000 "")
    at ../qemu-xen-dir-remote/hw/xen/xen-mapcache.c:487
    as=as@entry=0xaaaae1ca3ae8 <address_space_memory>, buffer=0xffff743c5000,
    len=<optimized out>, is_write=is_write@entry=true,
    access_len=access_len@entry=32768)
    at ../qemu-xen-dir-remote/system/physmem.c:3199
    dir=DMA_DIRECTION_FROM_DEVICE, len=<optimized out>,
    buffer=<optimized out>, as=0xaaaae1ca3ae8 <address_space_memory>)
    at /home/Freenix/work/sw-stash/xen/upstream/tools/qemu-xen-dir-remote/include/sysemu/dma.h:236
    elem=elem@entry=0xaaaaf620aa30, len=len@entry=32769)
    at ../qemu-xen-dir-remote/hw/virtio/virtio.c:758
    elem=elem@entry=0xaaaaf620aa30, len=len@entry=32769, idx=idx@entry=0)
    at ../qemu-xen-dir-remote/hw/virtio/virtio.c:919
    elem=elem@entry=0xaaaaf620aa30, len=32769)
    at ../qemu-xen-dir-remote/hw/virtio/virtio.c:994
    req=req@entry=0xaaaaf620aa30, status=status@entry=0 '\000')
    at ../qemu-xen-dir-remote/hw/block/virtio-blk.c:67
    ret=0) at ../qemu-xen-dir-remote/hw/block/virtio-blk.c:136
    at ../qemu-xen-dir-remote/block/block-backend.c:1559
--Type <RET> for more, q to quit, c to continue without paging--
    at ../qemu-xen-dir-remote/block/block-backend.c:1614
    i1=<optimized out>) at ../qemu-xen-dir-remote/util/coroutine-ucontext.c:177
    at ../sysdeps/unix/sysv/linux/aarch64/setcontext.S:123

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Message-Id: <20240124021450.21656-1-peng.fan@oss.nxp.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2024-03-12 14:13:08 +00:00
..
Kconfig xen: add CONFIG_XEN_BUS and CONFIG_XEN_EMU options for Xen emulation 2023-03-01 08:22:49 +00:00
meson.build hw/xen: cleanup sourcesets 2023-10-18 10:01:01 +02:00
trace-events hw/xen/xen-hvm-common.c: convert DPRINTF to tracepoints 2024-02-02 13:51:59 +00:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
xen-backend.c hw/xen: do not repeatedly try to create a failing backend device 2023-11-07 08:54:20 +00:00
xen-bus-helper.c hw/xen: Add xenstore operations to allow redirection to internal emulation 2023-03-07 17:04:30 +00:00
xen-bus.c hw/xen: use qemu_create_nic_bus_devices() to instantiate Xen NICs 2024-02-02 16:23:47 +00:00
xen-host-pci-device.c xen: Use ERRP_GUARD() 2020-07-10 15:18:09 +02:00
xen-host-pci-device.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
xen-hvm-common.c hw/xen: Use target-agnostic qemu_target_page_bits() 2024-03-09 18:51:45 +01:00
xen-legacy-backend.c hw/xen: update Xen console to XenDevice model 2023-11-07 08:54:20 +00:00
xen-mapcache.c xen: Drop out of coroutine context xen_invalidate_map_cache_entry 2024-03-12 14:13:08 +00:00
xen-operations.c xen: Drop support for Xen versions below 4.7.1 2023-06-07 15:07:10 +01:00
xen_devconfig.c hw/xen: use qemu_create_nic_bus_devices() to instantiate Xen NICs 2024-02-02 16:23:47 +00:00
xen_pt.c hw/xen: Extract 'xen_igd.h' from 'xen_pt.h' 2024-03-09 18:51:45 +01:00
xen_pt.h hw/xen: Extract 'xen_igd.h' from 'xen_pt.h' 2024-03-09 18:51:45 +01:00
xen_pt_config_init.c xen/pt: Emulate multifunction bit in header type 2024-03-12 14:13:08 +00:00
xen_pt_graphics.c hw/xen: Extract 'xen_igd.h' from 'xen_pt.h' 2024-03-09 18:51:45 +01:00
xen_pt_load_rom.c pci: add romsize property 2021-02-05 08:52:58 -05:00
xen_pt_msi.c hw/xen: Rename xen_common.h to xen_native.h 2023-03-07 17:04:30 +00:00
xen_pt_stub.c hw/xen: Extract 'xen_igd.h' from 'xen_pt.h' 2024-03-09 18:51:45 +01:00
xen_pvdev.c xen: spelling fix 2023-09-08 13:08:52 +03:00