This "hotpluggable" here is misleading. Actually we check is object a
device or not. Let's drop the word.
Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20240329183758.3360733-3-vsementsov@yandex-team.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
When something tries to run one of the spawn syscalls (eg clone),
our seccomp deny filter is set to cause a fatal trap which kills
the process.
This is found to be unhelpful when QEMU has loaded the nvidia
GL library. This tries to spawn a process to modprobe the nvidia
kmod. This is a dubious thing to do, but at the same time, the
code will gracefully continue if this fails. Our seccomp filter
rightly blocks the spawning, but prevent the graceful continue.
Switching to reporting EPERM will make QEMU behave more gracefully
without impacting the level of protect we have.
https://gitlab.com/qemu-project/qemu/-/issues/2116
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240219061731.232570-1-npiggin@gmail.com>
[PMD: Split patch in 2: part 1/2]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Link: https://lore.kernel.org/r/20240312201458.79532-3-philmd@linaro.org
Signed-off-by: Peter Xu <peterx@redhat.com>
In order to call tlb_reset_dirty_range_all() outside of
system/physmem.c, expose its prototype.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Link: https://lore.kernel.org/r/20240312201458.79532-2-philmd@linaro.org
Signed-off-by: Peter Xu <peterx@redhat.com>
A small number of migration options are accessed by migration clients,
but to see them clients must include all of options.h, which is mostly
for migration core code. migrate_mode() in particular will be needed by
multiple clients.
Refactor the option declarations so clients can see the necessary few via
misc.h, which already exports a portion of the client API.
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Link: https://lore.kernel.org/r/1710179319-294320-1-git-send-email-steven.sistare@oracle.com
Signed-off-by: Peter Xu <peterx@redhat.com>
If the access is bigger than the MemoryRegion supports,
flatview_read/write_continue() will attempt to update the Memory Region.
but the address passed to flatview_translate() is relative to the cache, not
to the FlatView.
On arm/virt with interleaved CXL memory emulation and virtio-blk-pci this
lead to the first part of descriptor being read from the CXL memory and the
second part from PA 0x8 which happens to be a blank region
of a flash chip and all ffs on this particular configuration.
Note this test requires the out of tree ARM support for CXL, but
the problem is more general.
Avoid this by adding new address_space_read_continue_cached()
and address_space_write_continue_cached() which share all the logic
with the flatview versions except for the MemoryRegion lookup which
is unnecessary as the MemoryRegionCache only covers one MemoryRegion.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240307153710.30907-5-Jonathan.Cameron@huawei.com
Signed-off-by: Peter Xu <peterx@redhat.com>
This code will be reused for the address_space_cached accessors
shortly.
Also reduce scope of result variable now we aren't directly
calling this in the loop.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Link: https://lore.kernel.org/r/20240307153710.30907-4-Jonathan.Cameron@huawei.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Precursor to factoring out the inner loops for reuse.
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Link: https://lore.kernel.org/r/20240307153710.30907-3-Jonathan.Cameron@huawei.com
Signed-off-by: Peter Xu <peterx@redhat.com>
The calls to flatview_read/write[_continue]() have parameters addr and
addr1 but the names give no indication of what they are addresses of.
Rename addr1 to mr_addr to reflect that it is the translated address
offset within the MemoryRegion returned by flatview_translate().
Similarly rename the parameter in address_space_read/write_cached_slow()
Suggested-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Link: https://lore.kernel.org/r/20240307153710.30907-2-Jonathan.Cameron@huawei.com
Signed-off-by: Peter Xu <peterx@redhat.com>
The output of info qtree monitor command is very long. Add an option
to print a brief overview omitting all the details.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Dr. David Alan Gilbert <dave@treblig.org>
Message-ID: <20240307183812.0105D4E6004@zero.eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
physmem.c doesn't use any declaration from "hw/xen/xen.h",
it only requires "sysemu/xen.h" and "system/xen-mapcache.h".
Suggested-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20231114143816.71079-5-philmd@linaro.org>
Improve
Record/replay feature is not supported for '-rtc base=localtime'
Record/replay feature is not supported for 'smp'
Record/replay feature is not supported for '-snapshot'
to
Record/replay is not supported with -rtc base=localtime
Record/replay is not supported with multiple CPUs
Record/replay is not supported with -snapshot
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Original goal of addition of drain_call_rcu to qmp_device_add was to cover
the failure case of qdev_device_add. It seems call of drain_call_rcu was
misplaced in 7bed89958b what led to waiting for pending RCU callbacks
under happy path too. What led to overall performance degradation of
qmp_device_add.
In this patch call of drain_call_rcu moved under handling of failure of
qdev_device_add.
Signed-off-by: Dmitrii Gavrilov <ds-gavr@yandex-team.ru>
Message-ID: <20231103105602.90475-1-ds-gavr@yandex-team.ru>
Fixes: 7bed89958b ("device_core: use drain_call_rcu in in qmp_device_add", 2020-10-12)
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Move qemu_host_page_{size,mask} and HOST_PAGE_ALIGN into bsd-user.
It should be removed from bsd-user as well, but defer that cleanup.
Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-28-richard.henderson@linaro.org>
Align allocation sizes to the maximum of host and target page sizes.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-15-richard.henderson@linaro.org>
Add a fd-bootchk property to PC machine types, so that -no-fd-bootchk
returns an error if the machine does not support booting from floppies
and checking for boot signatures therein.
Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Currently the qemu_register_reset() API permits the reset handler functions
registered with it to remove themselves from within the callback function.
This is fine with our current implementation, but is a bit odd, because
generally reset is supposed to be idempotent, and doesn't fit well in a
three-phase-reset world where a resettable object will get multiple
callbacks as the system is reset.
We now have only one user of qemu_register_reset() which makes use of
the ability to unregister itself within the callback:
restore_boot_order(). We want to change our implementation of
qemu_register_reset() to something where it would be awkward to
maintain the "can self-unregister" feature. Rather than making that
reimplementation complicated, change restore_boot_order() so that it
doesn't unregister itself but instead returns doing nothing for any
calls after it has done the "restore the boot order" work.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240220160622.114437-4-peter.maydell@linaro.org
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Input grab key should be Ctrl-Alt-g, not just Ctrl-Alt.
Fixes: f8d2c9369b ("sdl: use ctrl-alt-g as grab hotkey")
Signed-off-by: Tianlan Zhou <bobby825@126.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Arguments `ram_block` are reassigned to local declarations `block`
without further use. Remove re-assignment to reduce noise.
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Use __func__ to avoid hard-coded function name.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240125023328.2520888-1-xiaoyao.li@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
vhost-user-snd support
x2APIC mode with TCG support
CXL update to r3.1
fixes, cleanups all over the place.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging
virtio,pc,pci: features, cleanups, fixes
vhost-user-snd support
x2APIC mode with TCG support
CXL update to r3.1
fixes, cleanups all over the place.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (60 commits)
MAINTAINERS: Switch to my Enfabrica email
virtio-gpu-rutabaga.c: override resource_destroy method
virtio-gpu.c: add resource_destroy class method
hw/display/virtio-gpu.c: use reset_bh class method
hw/smbios: Fix port connector option validation
hw/smbios: Fix OEM strings table option validation
virtio-gpu: Correct virgl_renderer_resource_get_info() error check
hw/cxl: Standardize all references on CXL r3.1 and minor updates
hw/cxl: Update mailbox status registers.
hw/cxl: Update RAS Capability Definitions for version 3.
hw/cxl: Update link register definitions.
hw/cxl: Update HDM Decoder capability to version 3
tests/acpi: Update DSDT.cxl to reflect change _STA return value.
hw/i386: Fix _STA return value for ACPI0017
tests/acpi: Allow update of DSDT.cxl
hw/mem/cxl_type3: Fix potential divide by zero reported by coverity
hw/cxl: Pass NULL for a NULL MemoryRegionOps
hw/cxl: Pass CXLComponentState to cache_mem_ops
hw/cxl/device: read from register values in mdev_reg_read()
hw/cxl/mbox: Remove dead code
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Some SuperI/O devices such as the VIA south bridges or the PC87312 controller
allow to enable or disable their SuperI/O functions. Add a convenience function
for implementing this in the VIA south bridges.
The naming of the functions is inspired by its memory_region_set_enabled()
pendant.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20240114123911.4877-7-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Some SuperI/O devices such as the VIA south bridges or the PC87312 controller
are able to relocate their SuperI/O functions. Add a convenience function for
implementing this in the VIA south bridges.
This convenience function relies on previous simplifications in exec/ioport
which avoids some duplicate synchronization of I/O port base addresses. The
naming of the function is inspired by its memory_region_set_address() pendant.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20240114123911.4877-6-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
portio_list_add_1() creates a MemoryRegionPortioList instance which holds a
MemoryRegion `mr` and an array of MemoryRegionPortio elements named `ports`.
Each element in the array gets assigned the same value for its .base attribute.
The same value also ends up as the .addr attribute of `mr` due to the
memory_region_add_subregion() call. This means that all .base attributes are
the same as `mr.addr`.
The only usages of MemoryRegionPortio::base were in portio_read() and
portio_write(). Both functions get above MemoryRegionPortioList as their
opaque parameter. In both cases find_portio() can only return one of the
MemoryRegionPortio elements of the `ports` array. Due to above observation any
element will have the same .base value equal to `mr.addr` which is also
accessible.
Hence, `mrpio->mr.addr` is equivalent to `mrp->base` and
MemoryRegionPortio::base is redundant and can be removed.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20240114123911.4877-5-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This file is only used by system/physmem.c so move them together.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
For a long time now, libvirt has pre-created the monitor connection
socket and passed the pre-opened FD into QEMU during startup. Thus
libvirt does not have any timeouts waiting for the monitor socket
to appear, it is immediately connected.
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
In many configurations, e.g. multiple vNICs with multiple queues or
with many Ceph OSDs, the default soft limit of 1024 is not enough.
QEMU is supposed to work fine with file descriptors >= 1024 and does
not use select() on POSIX. Bump the soft limit to the allowed hard
limit to avoid issues with the aforementioned configurations.
Of course the limit could be raised from the outside, but the man page
of systemd.exec states about 'LimitNOFILE=':
> Don't use.
> [...]
> Typically applications should increase their soft limit to the hard
> limit on their own, if they are OK with working with file
> descriptors above 1023,
If the soft limit is already the same as the hard limit, avoid the
superfluous setrlimit call. This can avoid a warning with a strict
seccomp filter blocking setrlimit if NOFILE was already raised before
executing QEMU.
Buglink: https://bugzilla.proxmox.com/show_bug.cgi?id=4507
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
QEMU initializes preallocated backend memory as the objects are parsed from
the command line. This is not optimal in some cases (e.g. memory spanning
multiple NUMA nodes) because the memory objects are initialized in series.
Allow the initialization to occur in parallel (asynchronously). In order to
ensure optimal thread placement, asynchronous initialization requires prealloc
context threads to be in use.
Signed-off-by: Mark Kanda <mark.kanda@oracle.com>
Message-ID: <20240131165327.3154970-2-mark.kanda@oracle.com>
Tested-by: Mario Casquero <mcasquer@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Also remove the stale declaration of host_net_devices; the actual
definition was removed long ago in commit 7cc28cb061 ("net: Remove
the deprecated 'host_net_add' and 'host_net_remove' HMP commands")
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Currently if the user passes multiple -serial options on the command
line, we mostly treat those as applying to the different serial
devices in order, so that for example
-serial stdio -serial file:filename
will connect the first serial port to stdio and the second to the
named file.
The exception to this is the '-serial none' serial device type. This
means "don't allocate this serial device", but a bug means that
following -serial options are not correctly handled, so that
-serial none -serial stdio
has the unexpected effect that stdio is connected to the first serial
port, not the second.
This is a very long-standing bug that dates back at least as far as
commit 998bbd74b9 from 2009.
Make the 'none' serial type move forward in the indexing of serial
devices like all the other serial types, so that any subsequent
-serial options are correctly handled.
Note that if your commandline mistakenly had a '-serial none' that
was being overridden by a following '-serial something' option, you
should delete the unnecessary '-serial none'. This will give you the
same behaviour as before, on QEMU versions both with and without this
bug fix.
Cc: qemu-stable@nongnu.org
Reported-by: Bohdan Kostiv <bohdan.kostiv@tii.ae>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240122163607.459769-2-peter.maydell@linaro.org
Fixes: 998bbd74b9 ("default devices: core code & serial lines")
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
tcg/ should not depend on accel/tcg/, but perf and debuginfo
support provided by the latter are being used by tcg/tcg.c.
Since that's the only user, move both to tcg/.
Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20231212003837.64090-5-iii@linux.ibm.com>
Message-Id: <20240125054631.78867-5-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Currently qemu_target_page_mask() is usable only from the softmmu
code. Make it possible to use it from the *-user code as well.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-ID: <20231208003754.3688038-2-iii@linux.ibm.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240124075609.14756-2-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[rth: Split out change to accel/tcg/perf.c]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Keep system/watchpoint.c accelerator-agnostic by moving
TCG specific code to accel/tcg/watchpoint.c. Update meson.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240111162032.43378-1-philmd@linaro.org>
Rather than having to lookup for what the 0, 1, 2, ...
icount values are, use a enum definition.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20231208113529.74067-4-philmd@linaro.org>
Following the example documented since commit e3fe3988d7 ("error:
Document Error API usage rules"), have icount_configure()
return a boolean indicating whether an error is set or not.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231208113529.74067-2-philmd@linaro.org>
This option has been deprecated before the 8.1 release,
in commit 12fd0f41d0 ("Document that -singlestep command
line option is deprecated"). Time to drop it.
Inspired-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240117151430.29235-4-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
