If we receive an unsupported request id, we first decide to
return -ENOTSUPP to the client, but since the request id
causes is_read_only_op() to return false, we change the
error to be -EROFS if the fsdev is read-only. This doesn't
make sense since we don't know what the client asked for.
This patch ensures that -EROFS can only be returned if the
request id is supported.
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
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Merge remote-tracking branch 'remotes/stefanberger/tags/pull-tpm-2017-12-22-1' into staging
Merge tpm 2017/12/22 v1
# gpg: Signature made Fri 22 Dec 2017 20:03:37 GMT
# gpg: using RSA key 0x75AD65802A0B4211
# gpg: Good signature from "Stefan Berger <stefanb@linux.vnet.ibm.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: B818 B9CA DF90 89C2 D5CE C66B 75AD 6580 2A0B 4211
* remotes/stefanberger/tags/pull-tpm-2017-12-22-1:
acpi: Update TPM2 ACPI table to more recent specs
tpm: Implement tpm_sized_buffer_reset
tpm_tis: merge r/w_offset into rw_offset
tpm_tis: move r/w_offsets to TPMState
tpm_tis: merge read and write buffer into single buffer
tpm_tis: move buffers from localities into common location
tpm_tis: remove TPMSizeBuffer usage
tpm_tis: limit size of buffer from backend
tpm_tis: convert uint32_t to size_t
tpm_emulator: Add a caching layer for the TPM Established flag
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Version: GnuPG v1
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Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging
# gpg: Signature made Fri 22 Dec 2017 02:12:29 GMT
# gpg: using RSA key 0xEF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211
* remotes/jasowang/tags/net-pull-request:
qemu-doc: Update the deprecation information of -tftp, -bootp, -redir and -smb
qemu-doc: The "-net nic" option can be used with "netdev=...", too
net: Remove the legacy "-net channel" parameter
net: remove unused compute_mcast_idx() function
rtl8139: use inline net_crc32() and bitshift instead of compute_mcast_idx()
ne2000: use inline net_crc32() and bitshift instead of compute_mcast_idx()
ftgmac100: use inline net_crc32() and bitshift instead of compute_mcast_idx()
lan9118: use inline net_crc32() and bitshift instead of compute_mcast_idx()
opencores_eth: use inline net_crc32() and bitshift instead of compute_mcast_idx()
eepro100: use inline net_crc32() and bitshift instead of compute_mcast_idx()
sungem: fix multicast filter CRC calculation
sunhme: switch sunhme over to use net_crc32_le()
eepro100: switch eepro100 e100_compute_mcast_idx() over to use net_crc32()
pcnet: switch pcnet over to use net_crc32_le()
net: introduce net_crc32_le() function
net: move CRC32 calculation from compute_mcast_idx() into its own net_crc32() function
e1000: Separate TSO and non-TSO contexts, fixing UDP TX corruption
e1000, e1000e: Move per-packet TX offload flags out of context state
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If the script is run with a core (no running process), it produces an
error:
(gdb) dump-guest-memory /tmp/vmcore X86_64
guest RAM blocks:
target_start target_end host_addr message count
---------------- ---------------- ---------------- ------- -----
0000000000000000 00000000000a0000 00007f7935800000 added 1
00000000000a0000 00000000000b0000 00007f7934200000 added 2
00000000000c0000 00000000000ca000 00007f79358c0000 added 3
00000000000ca000 00000000000cd000 00007f79358ca000 joined 3
00000000000cd000 00000000000e8000 00007f79358cd000 joined 3
00000000000e8000 00000000000f0000 00007f79358e8000 joined 3
00000000000f0000 0000000000100000 00007f79358f0000 joined 3
0000000000100000 0000000080000000 00007f7935900000 joined 3
00000000fd000000 00000000fe000000 00007f7934200000 added 4
00000000fffc0000 0000000100000000 00007f7935600000 added 5
Python Exception <class 'gdb.error'> You can't do that without a process to debug.:
Error occurred in Python command: You can't do that without a process
to debug.
Replace the object_resolve_path_type() function call with a local
volatile variable.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
More recent specs of the TPM2 ACPI table add fields for the log area
start address and the log area minimum size, which we already use
for the TCPA table.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Add trace output for commands, errors, and undefined behavior.
Add guest error log output for undefined behavior.
Report invalid undefined accesses to MMIO.
Annotate unlikely error checks with unlikely.
Signed-off-by: Doug Gale <doug16k@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This patch adds the function apic_get_highest_priority_irr to
apic.c and exports it through the interface in apic.h for use by hvf.
Signed-off-by: Sergio Andres Gomez Del Real <Sergio.G.DelReal@gmail.com>
Message-Id: <20170913090522.4022-8-Sergio.G.DelReal@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Move the definition of TPMSizedBuffer out of tpm_tis.c into tpm_util.h
and implement tpm_sized_buffer_reset() for the following patches to use.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
We can now merge the r_offset and w_offset into a single rw_offset.
This is possible since when the offset is used for writing in
RECEPTION state then reads are ignore. Conversely, when the offset
is used for reading when in COMPLETION state, then writes are
ignored.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Now that we have a single buffer, we also only need a single set of
read/write offsets into that buffer. This works since only one
locality can be active.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Since we can only be in read or write mode, we can merge the buffers
into a single buffer.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
One read buffer and one write buffer is sufficient for all localities.
The localities cannot all be active at the same time, and only the active
locality can use the r/w buffers. Inactive localities will require the
COMMAND_READY flag to be set on the STS register to move to the READY
state, which then enables access to using the buffer for writing of a
command, while all other localities are inactive.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Remove usage of TPMSizeBuffer. The size of the buffers is limited now
by s->be_buffer_size, which is the size of the buffer the TIS has
negotiated with the backend.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
This is a preparatory patch for the subsequent ones where we
get rid of the flexibility of supporting any kind of buffer size
that the backend may support. We keep the size at 4096, which is
also the size the external emulator supports. So, limit the size
of the buffer we can support and pass it back to the backend.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Add a caching layer for the TPM established flag so that we don't
need to go to the emulator every time the flag is read by accessing
the REG_ACCESS register.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
This makes it much easier to compare the multicast CRC calculation endian and
bitshift against the Linux driver implementation.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This makes it much easier to compare the multicast CRC calculation endian and
bitshift against the Linux driver implementation.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This makes it much easier to compare the multicast CRC calculation endian and
bitshift against the Linux driver implementation.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This makes it much easier to compare the multicast CRC calculation endian and
bitshift against the Linux driver implementation.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This makes it much easier to compare the multicast CRC calculation endian and
bitshift against the Linux driver implementation.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This makes it much easier to compare the multicast CRC calculation endian and
bitshift against the Linux driver implementation.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Jason Wang <jasowang@redhat.com>
From the Linux sungem driver, we know that the multicast filter CRC is
implemented using ether_crc_le() which isn't the same as calling zlib's
crc32() function (the zlib implementation requires a complemented initial value
and also returns the complemented result).
Fix the multicast filter by simply using the new net_crc32_le() function.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Instead of sunhme_crc32_le() using its own implementation, we can simply call
net_crc32_le() directly and apply the bit shift inline.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Instead of e100_compute_mcast_idx() using its own implementation, we can
simply call net_crc32() directly and apply the bit shift inline.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Instead of lnc_mchash() using its own implementation, we can simply call
net_crc32_le() directly and apply the bit shift inline.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Separate out the standard ethernet CRC32 calculation into a new net_crc32()
function, renaming the constant POLYNOMIAL to POLYNOMIAL_BE to make it clear
that this is a big-endian CRC32 calculation.
As part of the constant rename, remove the duplicate definition of POLYNOMIAL
from eepro100.c and use the new POLYNOMIAL_BE constant instead.
Once this is complete remove the existing CRC32 implementation from
compute_mcast_idx() and call the new net_crc32() function in its place.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
The device is supposed to maintain two distinct contexts for transmit
offloads: one has parameters for both segmentation and checksum
offload, the other only for checksum offload. The guest driver can
send two context descriptors, one for each context (the TSE flag
specifies which). Then the guest can refer to one or the other context
in subsequent transmit data descriptors, depending on what offloads it
wants applied to each packet.
Currently the e1000 device stores just one context, and misinterprets
the TSE flags in the context and data descriptors. This is often okay:
Linux happens to send a fresh context descriptor before every data
descriptor, so forgetting the other context doesn't matter. Windows
does rely on separate contexts for TSO vs. non-TSO packets, but for
mostly-TCP traffic the two contexts have identical TCP-specific
offload parameters so confusing them doesn't matter.
One case where this confusion matters is when a Windows guest sets up
a TSO context for TCP and a non-TSO context for UDP, and then
transmits both TCP and UDP traffic in parallel. The e1000 device
sometimes ends up using TCP-specific parameters while doing checksum
offload on a UDP datagram: it writes the checksum to offset 16 (the
correct location for a TCP checksum), stomping on two bytes of UDP
data, and leaving the wrong value in the actual UDP checksum field at
offset 6. (Even worse, the host network stack may then recompute the
UDP checksum, "correcting" it to match the corrupt data before sending
it out a physical interface.)
Correct this by tracking the TSO context independently of the non-TSO
context, and selecting the appropriate context based on the TSE flag
in each transmit data descriptor.
Signed-off-by: Ed Swierk <eswierk@skyportsystems.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
sum_needed and cptse flags are received from the guest within each
transmit data descriptor. They are not part of the offload context;
instead, they determine how to apply a previously received context to
the packet being transmitted:
- If cptse is set, perform both segmentation and checksum offload
using the parameters in the TSO context; otherwise just do checksum
offload. (Currently the e1000 device incorrectly stores only one
context, which will be fixed in a subsequent patch.)
- Depending on the bits set in sum_needed, possibly perform L4
checksum offload and/or IP checksum offload, using the parameters in
the appropriate context.
Move these flags out of struct e1000x_txd_props, which is otherwise
dedicated to storing values from a context descriptor, and into the
per-packet TX struct.
Signed-off-by: Ed Swierk <eswierk@skyportsystems.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
PIIX4 errata says that "immediate polling of the Host Status Register BUSY
bit may indicate that the SMBus is NOT busy."
Due to this, some code does the following steps:
(a) set parameters
(b) start command
(c) check for smbus busy bit set (to know that command started)
(d) check for smbus busy bit not set (to know that command finished)
Let (c) happen, by immediately setting the busy bit, and really executing
the command when status register has been read once.
This fixes a problem with AMIBIOS, which can now properly initialize the PIIX4.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
If the script is run with a core (no running process), it produces an
error:
(gdb) dump-guest-memory /tmp/vmcore X86_64
guest RAM blocks:
target_start target_end host_addr message count
---------------- ---------------- ---------------- ------- -----
0000000000000000 00000000000a0000 00007f7935800000 added 1
00000000000a0000 00000000000b0000 00007f7934200000 added 2
00000000000c0000 00000000000ca000 00007f79358c0000 added 3
00000000000ca000 00000000000cd000 00007f79358ca000 joined 3
00000000000cd000 00000000000e8000 00007f79358cd000 joined 3
00000000000e8000 00000000000f0000 00007f79358e8000 joined 3
00000000000f0000 0000000000100000 00007f79358f0000 joined 3
0000000000100000 0000000080000000 00007f7935900000 joined 3
00000000fd000000 00000000fe000000 00007f7934200000 added 4
00000000fffc0000 0000000100000000 00007f7935600000 added 5
Python Exception <class 'gdb.error'> You can't do that without a process to debug.:
Error occurred in Python command: You can't do that without a process
to debug.
Replace the object_resolve_path_type() function call call with a
local volatile variable.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The statement being removed doesn't change anything as virtio PCI devices already
have Subsystem Vendor ID set to pci_default_sub_vendor_id (0x1af4), same as Vendor
ID. And the Virtio spec does not require the two to be equal, either:
"The PCI Subsystem Vendor ID and the PCI Subsystem Device ID MAY reflect the PCI
Vendor and Device ID of the environment (for informational purposes by the driver)."
Background:
Following the recent virtio-win licensing change, several vendors are planning to
ship their own certified version of Windows guest Virtio drivers, potentially taking
advantage of Windows Update as a distribution channel. It is therefore critical that
each vendor uses their own PCI Subsystem Vendor ID for Virtio devices to prevent
drivers from other vendors binding to it.
This would be trivially done by adding:
k->subsystem_vendor_id = ...
to virtio_pci_class_init(). Except for the problematic statement deleted by this
patch, which reverts the Subsystem Vendor ID back to 0x1af4 for legacy devices for
no good reason.
Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
It should be caching-mode. It may confuse people when it pops up.
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Liu, Yi L <yi.l.liu@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
We have PCI_DEVFN_MAX now.
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Liu, Yi L <yi.l.liu@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
When compiled with anything other than the 'log' trace backend, we have:
error: implicit declaration of function 'qemu_log_mask'
error: 'LOG_UNIMP' undeclared (first use in this function)
This patch adds the missing include.
Fixes: 7299e1a411
("hw/i386/vmport: replace fprintf() by trace events or LOG_UNIMP")
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-id: 20171221211103.30311-1-laurent@vivier.eu
[PMM: fixed commit message description of when problem occurs]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
It makes the code clearer to separate the bus implementation
from the devices one.
Replace ADB_DPRINTF() with trace events (and adding new ones in adb-kbd.c).
Some minor changes to make checkpatch.pl happy.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20171220121406.24056-1-laurent@vivier.eu>
Now both classes (i8259, i8259-kvm) support this. Move this upper to
the common class code.
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20171210063819.14892-6-peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Let's leverage the i8259 common code for kvm-i8259 too.
I think it's still possible that stats can lost when i8259 is in kernel
and meanwhile when irqfd is used, e.g., by vfio or vhost devices.
However that should be rare IMHO since they should be using MSIs mostly
if they really want performance (that's why people use vhost and device
assignment), and no old INTx should be used. As long as the INTx users
are emulated in QEMU the stats will be correct.
For "info pic", it should be always accurate since we fetch kvm regs
before dump.
More importantly, it's just too simple to do this now - it's only 10+
LOC to gain this feature.
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20171210063819.14892-5-peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It was only for userspace i8259. Move it to general code so that
kvm-i8259 can also use it in the future.
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20171210063819.14892-4-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It's not really scary to even enable it forever. After all it's i8259,
and it's even not the kernel one.
Then we can remove quite a few of lines to make it cleaner. And "info
irq" will always work for it.
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20171210063819.14892-3-peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
One thing to mention is that in pic_set_irq() I need to uncomment a few
lines in the macros to make sure IRQ value calculation is correct.
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20171210063819.14892-2-peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
