In xhci_get_port_bandwidth(), we use a variable-length array to
construct the buffer to send back to the guest. Avoid the VLA
by using dma_memory_set() to directly request the memory system
to fill the guest memory with a string of '80's.
The codebase has very few VLAs, and if we can get rid of them all we
can make the compiler error on new additions. This is a defensive
measure against security bugs where an on-stack dynamic allocation
isn't correctly size-checked (e.g. CVE-2021-3527).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230824164818.2652452-1-peter.maydell@linaro.org>
Fixes: effaf5a240
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20221105114851.306206-1-mjt@msgid.tls.msk.ru>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The abort() in xhci_find_stream() can be triggered via enabling the secondary
stream arrays by setting linear stream array (LSA) bit (in endpoint context) to
0. We may show warnings and drop this operation.
Fixes: 024426acc0 ("usb-xhci: usb3 streams")
Reported-by: Qiang Liu <cyruscyliu@gmail.com>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1192
Signed-off-by: Qiang Liu <cyruscyliu@gmail.com>
Message-Id: <20220904125926.2141607-1-cyruscyliu@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
If a guest sets up bad descriptors, it could force QEMU to access
non-existing memory regions. Thus we should check the return value
of dma_memory_read/write() to make sure that these errors don't go
unnoticed.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20220817160016.49752-1-thuth@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The loop condition in xhci_ring_chain_length() is under control of
the guest, and additionally the code does not check for failed DMA
transfers (e.g. if reaching the end of the RAM), so the loop there
could run for a very long time or even forever. Fix it by checking
the return value of dma_memory_read() and by introducing a maximum
loop length.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/646
Message-Id: <20220804131300.96368-1-thuth@redhat.com>
Reviewed-by: Mauro Matteo Cascella <mcascell@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
xhciwmi.exe is used inside Windows 2022 SVVP tests. This tool called as
'xhciwmi.exe --verify' reports that 'The firmware loaded on this
controller has known bugs and/or compatibility issues'. This is just
a warning but there is no particular sense to ignore it.
This patch just pacifies the tool.
There is a big question whether this change should be put using
machine type mechanics, but at my opinion this would be an overkill.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Tested-by: Pavel Polozov <pavel.polozov@virtuozzo.com>
CC: Yan Vugenfirer <yvugenfi@redhat.com>
CC: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Yan Vugenfirer <yvugenfi@redhat.com>
Message-Id: <20211223095443.130276-1-den@openvz.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Let devices specify transaction attributes when calling ld*_pci_dma().
Keep the default MEMTXATTRS_UNSPECIFIED in the few callers.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-22-philmd@redhat.com>
dma_memory_read() returns a MemTxResult type. Do not discard
it, return it to the caller.
Update the few callers.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-19-philmd@redhat.com>
Let devices specify transaction attributes when calling ld*_dma().
Keep the default MEMTXATTRS_UNSPECIFIED in the few callers.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-17-philmd@redhat.com>
Per xHCI spec v1.2 chapter 4.17.5 page 296:
If MSI or MSI-X interrupts are enabled, Interrupt Pending (IP)
shall be cleared automatically when the PCI dword write generated
by the interrupt assertion is complete.
Currently QEMU does not clear the IP flag in the MSI / MSI-X mode.
This causes subsequent spurious interrupt to be delivered to guests.
To solve this, we change the xhci intr_raise() hook routine to have
a bool return value that is passed to its caller (the xhci core),
with true indicating that IP should be self-cleared.
Fixes: 62c6ae04cf ("xhci: Initial xHCI implementation")
Fixes: 4c47f80063 ("xhci: add msix support")
Signed-off-by: Ruimei Yan <ruimei.yan@windriver.com>
[bmeng: move IP clear codes from xhci pci to xhci core]
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Message-Id: <20210521024224.2277634-2-bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is the result of running the timer-del-timer-free.cocci
script on the whole source tree.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201215154107.3255-4-peter.maydell@linaro.org
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Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2020-11-15' into staging
Fix Lesser GPL license versions (should be "2.1" and not "2")
# gpg: Signature made Sun 15 Nov 2020 16:20:10 GMT
# gpg: using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg: issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg: aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5
* remotes/huth-gitlab/tags/pull-request-2020-11-15: (26 commits)
nomaintainer: Fix Lesser GPL version number
test: Fix LGPL information in the file headers
tests/acceptance: Fix LGPL information in the file headers
tests/migration: Fix LGPL information in the file headers
sparc tcg cpus: Fix Lesser GPL version number
e1000e: Fix Lesser GPL version number
x86 hvf cpus: Fix Lesser GPL version number
nvdimm: Fix Lesser GPL version number
w32: Fix Lesser GPL version number
tpm: Fix Lesser GPL version number
overall/alpha tcg cpus|hppa: Fix Lesser GPL version number
overall usermode...: Fix Lesser GPL version number
migration: Fix Lesser GPL version number
parallel nor flash: Fix Lesser GPL version number
arm tcg cpus: Fix Lesser GPL version number
x86 tcg cpus: Fix Lesser GPL version number
linux user: Fix Lesser GPL version number
usb: Fix Lesser GPL version number
tricore tcg cpus: Fix Lesser GPL version number
xtensa tcg cpus: Fix Lesser GPL version number
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The v variable goes negative for reg < 0x20. Reorder the code
to first sanity check then calculate v and assign intr to make
sanity checkers happy.
Buglink: https://bugs.launchpad.net/qemu/+bug/1902112
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20201105134112.25119-7-kraxel@redhat.com
There is no "version 2" of the "Lesser" General Public License.
It is either "GPL version 2.0" or "Lesser GPL version 2.1".
This patch replaces all occurrences of "Lesser GPL version 2" with
"Lesser GPL version 2.1" in comment section.
Signed-off-by: Chetan Pant <chetan4windows@gmail.com>
Message-Id: <20201023122332.19369-1-chetan4windows@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Move a bunch of defines which might be needed outside core xhci
code to that place. Add XHCI_ prefixes to avoid name clashes.
No functional change.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Message-id: 20201020074844.5304-3-kraxel@redhat.com
This patch sets the base to use xhci as sysbus model, for which pci
specific hooks are moved to hcd-xhci-pci.c. As a part of this requirment
msi/msix interrupts handling is moved under XHCIPCIState. Made required
changes for qemu-xhci-nec.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Message-id: 1600957256-6494-4-git-send-email-sai.pavan.boddu@xilinx.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Move pci specific devices to new file. This set the environment to move all
pci specific hooks in hcd-xhci.c to hcd-xhci-pci.c.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Message-id: 1600957256-6494-3-git-send-email-sai.pavan.boddu@xilinx.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This patch starts making the hcd-xhci.c pci free, as part of this
restructuring dma read/writes are handled without passing pci object.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1600957256-6494-2-git-send-email-sai.pavan.boddu@xilinx.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
QEMU XHCI advertises AC64 (64-bit addressing) but doesn't allow
64-bit mode access in "runtime" and "operational" MemoryRegionOps.
Set the max_access_size based on sizeof(dma_addr_t) as AC64 is set.
XHCI specs:
"If the xHC supports 64-bit addressing (AC64 = ‘1’), then software
should write 64-bit registers using only Qword accesses. If a
system is incapable of issuing Qword accesses, then writes to the
64-bit address fields shall be performed using 2 Dword accesses;
low Dword-first, high-Dword second. If the xHC supports 32-bit
addressing (AC64 = ‘0’), then the high Dword of registers containing
64-bit address fields are unused and software should write addresses
using only Dword accesses"
The problem has been detected with SLOF, as linux kernel always accesses
registers using 32-bit access even if AC64 is set and revealed by
5d971f9e67 ("memory: Revert "memory: accept mismatching sizes in memory_region_access_valid"")
Suggested-by: Alexey Kardashevskiy <aik@au1.ibm.com>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-id: 20200721083322.90651-1-lvivier@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Factor out slot status check into a helper function. Add an additional
check after completing transfers. This is needed in case a guest
queues multiple transfers in a row and a device unplug happens while
qemu processes them.
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1786413
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200107083606.12393-1-kraxel@redhat.com
start vm with libvirt, when GuestOS running, enter poweroff command using
the xhci keyboard, then ASAN shows memory leak stack：
Direct leak of 80 byte(s) in 5 object(s) allocated from:
#0 0xfffd1e6431cb in __interceptor_malloc (/lib64/libasan.so.4+0xd31cb)
#1 0xfffd1e107163 in g_malloc (/lib64/libglib-2.0.so.0+0x57163)
#2 0xaaad39051367 in qemu_sglist_init /qemu/dma-helpers.c:43
#3 0xaaad3947c407 in pci_dma_sglist_init /qemu/include/hw/pci/pci.h:842
#4 0xaaad3947c407 in xhci_xfer_create_sgl /qemu/hw/usb/hcd-xhci.c:1446
#5 0xaaad3947c407 in xhci_setup_packet /qemu/hw/usb/hcd-xhci.c:1618
#6 0xaaad3948625f in xhci_submit /qemu/hw/usb/hcd-xhci.c:1827
#7 0xaaad3948625f in xhci_fire_transfer /qemu/hw/usb/hcd-xhci.c:1839
#8 0xaaad3948625f in xhci_kick_epctx /qemu/hw/usb/hcd-xhci.c:1991
#9 0xaaad3948f537 in xhci_doorbell_write /qemu/hw/usb/hcd-xhci.c:3158
#10 0xaaad38bcbfc7 in memory_region_write_accessor /qemu/memory.c:483
#11 0xaaad38bc654f in access_with_adjusted_size /qemu/memory.c:544
#12 0xaaad38bd1877 in memory_region_dispatch_write /qemu/memory.c:1482
#13 0xaaad38b1c77f in flatview_write_continue /qemu/exec.c:3167
#14 0xaaad38b1ca83 in flatview_write /qemu/exec.c:3207
#15 0xaaad38b268db in address_space_write /qemu/exec.c:3297
#16 0xaaad38bf909b in kvm_cpu_exec /qemu/accel/kvm/kvm-all.c:2383
#17 0xaaad38bb063f in qemu_kvm_cpu_thread_fn /qemu/cpus.c:1246
#18 0xaaad39821c93 in qemu_thread_start /qemu/util/qemu-thread-posix.c:519
#19 0xfffd1c8378bb (/lib64/libpthread.so.0+0x78bb)
#20 0xfffd1c77616b (/lib64/libc.so.6+0xd616b)
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Message-id: 20200110105855.81144-1-kuhn.chenqun@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Address Sanitizer shows memory leak in xhci_kick_epctx hw/usb/hcd-xhci.c:1912.
A sglist is leaked when a packet is retired and returns USB_RET_NAK status.
The leak stack is as bellow:
Direct leak of 2688 byte(s) in 168 object(s) allocated from:
#0 0xffffae8b11db in __interceptor_malloc (/lib64/libasan.so.4+0xd31db)
#1 0xffffae5c9163 in g_malloc (/lib64/libglib-2.0.so.0+0x57163)
#2 0xaaaabb6fb3f7 in qemu_sglist_init dma-helpers.c:43
#3 0xaaaabba705a7 in pci_dma_sglist_init include/hw/pci/pci.h:837
#4 0xaaaabba705a7 in xhci_xfer_create_sgl hw/usb/hcd-xhci.c:1443
#5 0xaaaabba705a7 in xhci_setup_packet hw/usb/hcd-xhci.c:1615
#6 0xaaaabba77a6f in xhci_kick_epctx hw/usb/hcd-xhci.c:1912
#7 0xaaaabbdaad27 in timerlist_run_timers util/qemu-timer.c:592
#8 0xaaaabbdab19f in qemu_clock_run_timers util/qemu-timer.c:606
#9 0xaaaabbdab19f in qemu_clock_run_all_timers util/qemu-timer.c:692
#10 0xaaaabbdab9a3 in main_loop_wait util/main-loop.c:524
#11 0xaaaabb6ff5e7 in main_loop vl.c:1806
#12 0xaaaabb1e1453 in main vl.c:4488
Signed-off-by: Ying Fang <fangying1@huawei.com>
Message-id: 20190828062535.1573-1-fangying1@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Address Sanitizer shows memory leak in xhci_address_slot
hw/usb/hcd-xhci.c:2156 and the stack is as bellow:
Direct leak of 64 byte(s) in 4 object(s) allocated from:
#0 0xffff91c6f5ab in realloc (/lib64/libasan.so.4+0xd35ab)
#1 0xffff91987243 in g_realloc (/lib64/libglib-2.0.so.0+0x57243)
#2 0xaaaab0b26a1f in qemu_iovec_add util/iov.c:296
#3 0xaaaab07e5ce3 in xhci_address_slot hw/usb/hcd-xhci.c:2156
#4 0xaaaab07e5ce3 in xhci_process_commands hw/usb/hcd-xhci.c:2493
#5 0xaaaab00058d7 in memory_region_write_accessor qemu/memory.c:507
#6 0xaaaab0000d87 in access_with_adjusted_size memory.c:573
#7 0xaaaab000abcf in memory_region_dispatch_write memory.c:1516
#8 0xaaaaaff59947 in flatview_write_continue exec.c:3367
#9 0xaaaaaff59c33 in flatview_write exec.c:3406
#10 0xaaaaaff63b3b in address_space_write exec.c:3496
#11 0xaaaab002f263 in kvm_cpu_exec accel/kvm/kvm-all.c:2288
#12 0xaaaaaffee427 in qemu_kvm_cpu_thread_fn cpus.c:1290
#13 0xaaaab0b1a943 in qemu_thread_start util/qemu-thread-posix.c:502
#14 0xffff908ce8bb in start_thread (/lib64/libpthread.so.0+0x78bb)
#15 0xffff908165cb in thread_start (/lib64/libc.so.6+0xd55cb)
Cc: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Ying Fang <fangying1@huawei.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Message-id: 20190827080209.2365-1-fangying1@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit adds No Op Command (23) to xHC for verifying the operation
of the Command Ring mechanisms.
No Op Command is defined in XHCI spec (4.6.2) and just reports Command
Completion Event with Completion Code == Success.
Before this commit, No Op Command is not implemented so xHC reports
Command Completion Event with Completion Code == TRB Error. This commit
fixes this behaviour to report Completion Code correctly.
Signed-off-by: Hikaru Nishida <hikarupsp@gmail.com>
Message-id: 20190720060427.50457-1-hikarupsp@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
In my "build everything" tree, changing hw/qdev-properties.h triggers
a recompile of some 2700 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).
Many places including hw/qdev-properties.h (directly or via hw/qdev.h)
actually need only hw/qdev-core.h. Include hw/qdev-core.h there
instead.
hw/qdev.h is actually pointless: all it does is include hw/qdev-core.h
and hw/qdev-properties.h, which in turn includes hw/qdev-core.h.
Replace the remaining uses of hw/qdev.h by hw/qdev-properties.h.
While there, delete a few superfluous inclusions of hw/qdev-core.h.
Touching hw/qdev-properties.h now recompiles some 1200 objects.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20190812052359.30071-22-armbru@redhat.com>
In my "build everything" tree, changing hw/hw.h triggers a recompile
of some 2600 out of 6600 objects (not counting tests and objects that
don't depend on qemu/osdep.h).
The previous commits have left only the declaration of hw_error() in
hw/hw.h. This permits dropping most of its inclusions. Touching it
now recompiles less than 200 objects.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-19-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
In my "build everything" tree, changing migration/vmstate.h triggers a
recompile of some 2700 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).
hw/hw.h supposedly includes it for convenience. Several other headers
include it just to get VMStateDescription. The previous commit made
that unnecessary.
Include migration/vmstate.h only where it's still needed. Touching it
now recompiles only some 1600 objects.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-16-armbru@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
hw/usb/hcd-xhci.c: In function ‘usb_xhci_realize’:
hw/usb/hcd-xhci.c:3339:66: warning: ‘%d’ directive output may be truncated writing between 1 and 10 bytes into a region of size 5 [-Wformat-trunca\
tion=]
3339 | snprintf(port->name, sizeof(port->name), "usb2 port #%d", i+1);
| ^~
hw/usb/hcd-xhci.c:3339:54: note: directive argument in the range [1, 2147483647]
3339 | snprintf(port->name, sizeof(port->name), "usb2 port #%d", i+1);
| ^~~~~~~~~~~~~~~
The xhci code formats the port name into a fixed length
buffer which is only large enough to hold port numbers
upto 5 digits in decimal representation. We're never
going to have a port number that large, so aserting the
port number is sensible is sufficient to tell GCC the
formatted string won't be truncated.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20190412121626.19829-5-berrange@redhat.com>
[ kraxel: also s/int/unsigned int/ to tell gcc they can't
go negative. ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
we found the following core in our environment:
0 0x00007fc6b06c2237 in raise ()
1 0x00007fc6b06c3928 in abort ()
2 0x00007fc6b06bb056 in __assert_fail_base ()
3 0x00007fc6b06bb102 in __assert_fail ()
4 0x0000000000702e36 in xhci_kick_ep (...)
5 0x000000000047897a in memory_region_write_accessor (...)
6 0x000000000047767f in access_with_adjusted_size (...)
7 0x000000000047944d in memory_region_dispatch_write (...)
(mr=mr@entry=0x7fc6a0138df0, addr=addr@entry=156, data=1648892416,
size=size@entry=4, attrs=attrs@entry=...)
8 0x000000000042df17 in address_space_write_continue (...)
10 0x000000000043084d in address_space_rw (...)
11 0x000000000047451b in kvm_cpu_exec (cpu=cpu@entry=0x1ab11b0)
12 0x000000000045dcf5 in qemu_kvm_cpu_thread_fn (arg=0x1ab11b0)
13 0x0000000000870631 in qemu_thread_start (args=args@entry=0x1acfb50)
14 0x00000000008959a7 in thread_entry_for_hotfix (pthread_cb=<optimized out>)
15 0x00007fc6b0a60dd5 in start_thread ()
16 0x00007fc6b078a59d in clone ()
(gdb) f 5
5 0x000000000047897a in memory_region_write_accessor (...)
529 mr->ops->write(mr->opaque, addr, tmp, size);
(gdb) p /x tmp
$9 = 0x62481a00 <-- last byte 0x00 is @epid
xhci_doorbell_write() already check the upper bound of @slotid an @epid,
it also need to check the lower bound.
Cc: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Longpeng <longpeng2@huawei.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 1556605301-44112-1-git-send-email-longpeng2@huawei.com
[ kraxel: fixed typo in subject line ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Most callers of xhci_port_update() and xhci_wakeup() pass in a pointer
to an array entry and can never be NULL but add two defensive asserts
to protect against future changes (e.g. adding a new port speed, etc.)
adding a path through xhci_lookup_port() that could result in the
return of a NULL XHCIPort.
Signed-off-by: Liam Merwick <liam.merwick@oracle.com>
Message-id: 1549460216-25808-3-git-send-email-liam.merwick@oracle.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Implement underrun/overrun events of isochronous endpoints
according to XHCI spec (4.10.3.1)
Guest software restarts data streaming when receives these events.
The XHCI reports these events using interrupter assigned
to the slot (as these events do not have TRB), so current
commit adds the field of assigned interrupter to the
XHCISlot structure. Guest software assigns interrupter to the
slot on 'Address Device' and 'Evaluate Context' commands.
Signed-off-by: Yuri Benditovich <yuri.benditovich@janustech.com>
Message-id: 20190128200444.5128-3-yuri.benditovich@janustech.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
According to the XHCI spec (4.10.2) the controller
never halts isochronous endpoints. This commit prevent
stop of isochronous streaming when sporadic errors
status received from backends.
Signed-off-by: Yuri Benditovich <yuri.benditovich@janustech.com>
Message-id: 20190128200444.5128-2-yuri.benditovich@janustech.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Set xhci into error state instead of throwing a core dump.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180702162752.29233-1-kraxel@redhat.com
according to Eduardo Habkost's commit fd3b02c889 all PCIEs now implement
INTERFACE_PCIE_DEVICE so we don't need is_express field anymore.
Devices that implements only INTERFACE_PCIE_DEVICE (is_express == 1)
or
devices that implements only INTERFACE_CONVENTIONAL_PCI_DEVICE (is_express == 0)
where not affected by the change.
The only devices that were affected are those that are hybrid and also
had (is_express == 1) - therefor only:
- hw/vfio/pci.c
- hw/usb/hcd-xhci.c
- hw/xen/xen_pt.c
For those 3 I made sure that QEMU_PCI_CAP_EXPRESS is on in instance_init()
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Yoni Bettan <ybettan@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The bus pointer in PCIDevice is basically redundant with QOM information.
It's always initialized to the qdev_get_parent_bus(), the only difference
is the type.
Therefore this patch eliminates the field, instead creating a pci_get_bus()
helper to do the type mangling to derive it conveniently from the QOM
Device object underneath.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
The following devices support both PCI Express and Conventional
PCI, by including special code to handle the QEMU_PCI_CAP_EXPRESS
flag and/or conditional pcie_endpoint_cap_init() calls:
* vfio-pci (is_express=1, but legacy PCI handled by
vfio_populate_device())
* vmxnet3 (is_express=0, but PCIe handled by vmxnet3_realize())
* pvscsi (is_express=0, but PCIe handled by pvscsi_realize())
* virtio-pci (is_express=0, but PCIe handled by
virtio_pci_dc_realize(), and additional legacy PCI code at
virtio_pci_realize())
* base-xhci (is_express=1, but pcie_endpoint_cap_init() call
is conditional on pci_bus_is_express(dev->bus)
* Note that xhci does not clear QEMU_PCI_CAP_EXPRESS like the
other hybrid devices
Cc: Dmitry Fleytman <dmitry@daynix.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The existing XHCI code reads the Event Ring Segment Table Base Address
Register (ERSTBA) every time when it is changed. However zero is its
default state so one would think that zero there means it is not in use.
This adds a check for ERSTBA in addition to the existing check for
the Event Ring Segment Table Size Register (ERSTSZ).
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-id: 20170911065606.40600-1-aik@ozlabs.ru
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The dequeue pointer should only be updated in case the transfer
is actually completed. If we update it for inflight transfers
we will not pick them up again after migration, which easily
triggers with HID devices as they typically have a pending
transfer, waiting for user input to happen.
Fixes: 243afe858b
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1451631
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Laurent Vivier <lvivier@redhat.com>
Message-id: 20170608074122.32099-1-kraxel@redhat.com
Moved structs and defines to hcd-xhci.h.
Move nec controller variant to hcd-xhci-nec.c.
No functional changes.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20170517103313.8459-1-kraxel@redhat.com
The strict td link limit added by commit "05f43d4 xhci: limit the
number of link trbs we are willing to process" causes problems with
Windows guests. Let's raise the limit.
This change is analogous to:
commit ab6b1105a2
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue Mar 7 09:40:18 2017 +0100
ohci: relax link check
Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Message-id: 20170512102100.22675-1-lprosek@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
slotid and epid were deleted from XHCITransfer in commit d6fcb29.
Also deleting one unused forward declaration.
Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Message-id: 20170511125314.24549-2-lprosek@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
When done processing a endpoint ring we must update the dequeue pointer
in the endpoint context in guest memory. This is needed to make sure
the guest has a correct view of things and also to make live migration
work properly, because xhci post_load restores alot of the state from
xhci data structures in guest memory.
Add xhci_set_ep_state() call to do that.
The recursive calls stopped by commit
ddb603ab6c had the (unintentional) side
effect to hiding this bug. xhci_set_ep_state() was called before
processing, to set the state to running, which updated the dequeue
pointer too.
Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: 20170331102521.29253-1-kraxel@redhat.com
