Commit Graph

57875 Commits

Author SHA1 Message Date
Peter Maydell 1e10eb532c Initial support for the HVF accelerator
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream-hvf' into staging

Initial support for the HVF accelerator

# gpg: Signature made Sat 23 Dec 2017 07:51:18 GMT
# gpg:                using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream-hvf:
  i386: hvf: cleanup x86_gen.h
  i386: hvf: remove VM_PANIC from "in"
  i386: hvf: remove addr_t
  i386: hvf: simplify flag handling
  i386: hvf: abort on decoding error
  i386: hvf: remove ZERO_INIT macro
  i386: hvf: remove more dead emulator code
  i386: hvf: unify register enums between HVF and the rest
  i386: hvf: header cleanup
  i386: hvf: move all hvf files in the same directory
  i386: hvf: inject General Protection Fault when vmexit through vmcall
  i386: hvf: refactor event injection code for hvf
  i386: hvf: implement vga dirty page tracking
  i386: refactor KVM cpuid code so that it applies to hvf as well
  i386: hvf: implement hvf_get_supported_cpuid
  i386: hvf: use new helper functions for put/get xsave
  i386: hvf: fix licensing issues; isolate task handling code (GPL v2-only)
  i386: hvf: add code base from Google's QEMU repository
  apic: add function to apic that will be used by hvf

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-01-08 11:39:50 +00:00
Peter Maydell b1e513ae33 Merge tpm 2017/12/22 v1
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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>
2018-01-08 10:16:40 +00:00
Peter Maydell 8671016261 -----BEGIN PGP SIGNATURE-----
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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>
2018-01-08 09:15:42 +00:00
Stefan Berger 4a42fa0ee2 acpi: Update TPM2 ACPI table to more recent specs
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>
2017-12-22 11:03:21 -05:00
Paolo Bonzini 895f9fdf3a i386: hvf: cleanup x86_gen.h
This only includes VM_PANIC now.  No need to include it from headers.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:02:07 +01:00
Paolo Bonzini da20f5cd0d i386: hvf: remove VM_PANIC from "in"
Just give the obvious meaning to a 64-bit port, even though it
should not really happen.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:02:07 +01:00
Paolo Bonzini ff2de1668c i386: hvf: remove addr_t
Use target_ulong for virtual addresses and uint64_t for physical
addresses.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:02:07 +01:00
Paolo Bonzini e8a632579d i386: hvf: simplify flag handling
Remove much indirection and duplicate code, and provide a cleaner interface
out of x86_flags.c.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:02:07 +01:00
Paolo Bonzini e62963bf48 i386: hvf: abort on decoding error
Rather than unsupported situations, some VM_PANIC calls actually
are caused by internal errors.  Convert them to just abort.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:02:07 +01:00
Paolo Bonzini 715f396dfb i386: hvf: remove ZERO_INIT macro
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:02:07 +01:00
Paolo Bonzini 746827825d i386: hvf: remove more dead emulator code
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:02:07 +01:00
Paolo Bonzini 6701d81d74 i386: hvf: unify register enums between HVF and the rest
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:02:07 +01:00
Paolo Bonzini f9fea77740 i386: hvf: header cleanup
Remove inclusions of system headers and avoid "pragma once".

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:02:07 +01:00
Paolo Bonzini 69e0a03c3f i386: hvf: move all hvf files in the same directory
Just call it hvf/, no need for the "utils" suffix.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:02:05 +01:00
Sergio Andres Gomez Del Real 3010460fb9 i386: hvf: inject General Protection Fault when vmexit through vmcall
This patch injects a GP fault when the guest vmexit's by executing a
vmcall instruction.

Signed-off-by: Sergio Andres Gomez Del Real <Sergio.G.DelReal@gmail.com>
Message-Id: <20170913090522.4022-15-Sergio.G.DelReal@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:01:48 +01:00
Sergio Andres Gomez Del Real b7394c8394 i386: hvf: refactor event injection code for hvf
This patch refactors the event-injection code for hvf by using the
appropriate fields already provided by CPUX86State. At vmexit, it fills
these fields so that hvf_inject_interrupts can just retrieve them without
calling into hvf.

Signed-off-by: Sergio Andres Gomez Del Real <Sergio.G.DelReal@gmail.com>
Message-Id: <20170913090522.4022-14-Sergio.G.DelReal@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:01:48 +01:00
Sergio Andres Gomez Del Real babfa20ca4 i386: hvf: implement vga dirty page tracking
This patch implements setting the tracking of dirty vga pages, using hvf's
interface to protect guest memory. It uses the MemoryListener callback
mechanism through .log_start/stop/sync

Signed-off-by: Sergio Andres Gomez Del Real <Sergio.G.DelReal@gmail.com>
Message-Id: <20170913090522.4022-13-Sergio.G.DelReal@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:01:48 +01:00
Sergio Andres Gomez Del Real d6dcc5583e i386: refactor KVM cpuid code so that it applies to hvf as well
This patch generalizes some code in cpu.c for hypervisor-based
accelerators, calling the new hvf_get_supported_cpuid where
KVM used kvm_get_supported_cpuid.

Signed-off-by: Sergio Andres Gomez Del Real <Sergio.G.DelReal@gmail.com>
Message-Id: <20170913090522.4022-12-Sergio.G.DelReal@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:01:48 +01:00
Sergio Andres Gomez Del Real db5cb9a032 i386: hvf: implement hvf_get_supported_cpuid
This patch implements hvf_get_supported_cpuid, which returns the set of
features supported by both the host processor and the hypervisor.

Signed-off-by: Sergio Andres Gomez Del Real <Sergio.G.DelReal@gmail.com>
Message-Id: <20170913090522.4022-11-Sergio.G.DelReal@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:01:48 +01:00
Sergio Andres Gomez Del Real f585195ec0 i386: hvf: use new helper functions for put/get xsave
This patch makes use of the helper functions for handling xsave in
xsave_helper.c, which are shared with kvm.

Signed-off-by: Sergio Andres Gomez Del Real <Sergio.G.DelReal@gmail.com>
Message-Id: <20170913090522.4022-10-Sergio.G.DelReal@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:01:47 +01:00
Sergio Andres Gomez Del Real 996feed462 i386: hvf: fix licensing issues; isolate task handling code (GPL v2-only)
This patch replaces the license header for those files that were either
GPL v2-or-v3, or GPL v2-only; the replacing license is GPL v2-or-later.
The code for task switching/handling, which is derived from KVM and
hence is GPL v2-only, is isolated in the new files (with this license)
x86_task.c/.h, and the corresponding compilation rule is added to
target/i386/hvf-utils/Makefile.objs.

Signed-off-by: Sergio Andres Gomez Del Real <Sergio.G.DelReal@gmail.com>
Message-Id: <20170913090522.4022-4-Sergio.G.DelReal@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:01:46 +01:00
Sergio Andres Gomez Del Real c97d6d2cdf i386: hvf: add code base from Google's QEMU repository
This file begins tracking the files that will be the code base for HVF
support in QEMU. This code base is part of Google's QEMU version of
their Android emulator, and can be found at
https://android.googlesource.com/platform/external/qemu/+/emu-master-dev

This code is based on Veertu Inc's vdhh (Veertu Desktop Hosted
Hypervisor), found at https://github.com/veertuinc/vdhh. Everything is
appropriately licensed under GPL v2-or-later, except for the code inside
x86_task.c and x86_task.h, which, deriving from KVM (the Linux kernel),
is licensed GPL v2-only.

This code base already implements a very great deal of functionality,
although Google's version removed from Vertuu's the support for APIC
page and hyperv-related stuff. According to the Android Emulator Release
Notes, Revision 26.1.3 (August 2017), "Hypervisor.framework is now
enabled by default on macOS for 32-bit x86 images to improve performance
and macOS compatibility", although we better use with caution for, as the
same Revision warns us, "If you experience issues with it specifically,
please file a bug report...". The code hasn't seen much update in the
last 5 months, so I think that we can further develop the code with
occasional visiting Google's repository to see if there has been any
update.

On top of Google's code, the following changes were made:

- add code to the configure script to support the --enable-hvf argument.
If the OS is Darwin, it checks for presence of HVF in the system. The
patch also adds strings related to HVF in the file qemu-options.hx.
QEMU will only support the modern syntax style '-M accel=hvf' no enable
hvf; the legacy '-enable-hvf' will not be supported.

- fix styling issues

- add glue code to cpus.c

- move HVFX86EmulatorState field to CPUX86State, changing the
the emulation functions to have a parameter with signature 'CPUX86State *'
instead of 'CPUState *' so we don't have to get the 'env'.

Signed-off-by: Sergio Andres Gomez Del Real <Sergio.G.DelReal@gmail.com>
Message-Id: <20170913090522.4022-2-Sergio.G.DelReal@gmail.com>
Message-Id: <20170913090522.4022-3-Sergio.G.DelReal@gmail.com>
Message-Id: <20170913090522.4022-5-Sergio.G.DelReal@gmail.com>
Message-Id: <20170913090522.4022-6-Sergio.G.DelReal@gmail.com>
Message-Id: <20170905035457.3753-7-Sergio.G.DelReal@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-22 15:01:20 +01:00
Sergio Andres Gomez Del Real 2cb9f06e3d apic: add function to apic that will be used by hvf
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>
2017-12-22 15:01:19 +01:00
Stefan Berger b86da7dded tpm: Implement tpm_sized_buffer_reset
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>
2017-12-22 09:01:09 -05:00
Stefan Berger f999d81bc7 tpm_tis: merge r/w_offset into rw_offset
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>
2017-12-22 09:01:09 -05:00
Stefan Berger e6b30c71f4 tpm_tis: move r/w_offsets to TPMState
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>
2017-12-22 09:01:09 -05:00
Stefan Berger c5496b9797 tpm_tis: merge read and write buffer into single buffer
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>
2017-12-22 09:01:09 -05:00
Stefan Berger 0804084230 tpm_tis: move buffers from localities into common location
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>
2017-12-22 09:01:09 -05:00
Stefan Berger e6b703f6c7 tpm_tis: remove TPMSizeBuffer usage
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>
2017-12-22 09:01:09 -05:00
Stefan Berger 1af3d63ea3 tpm_tis: limit size of buffer from backend
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>
2017-12-22 09:01:09 -05:00
Stefan Berger 8a2306c7ed tpm_tis: convert uint32_t to size_t
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-12-22 09:01:09 -05:00
Stefan Berger 0b4c7c65f8 tpm_emulator: Add a caching layer for the TPM Established flag
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>
2017-12-22 09:01:09 -05:00
Thomas Huth 0065e91519 qemu-doc: Update the deprecation information of -tftp, -bootp, -redir and -smb
The information how to update the deprecated parameters was too scarce,
so that some people did not update to the new syntax yet. Provide some
more information to make sure that it is clear how to update from the
old syntax to the new one.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-22 10:06:05 +08:00
Thomas Huth 0e60a82d9b qemu-doc: The "-net nic" option can be used with "netdev=...", too
Looks like we missed to document that it is also possible to specify
a netdev with "-net nic" - which is very useful if you want to
configure your on-board NIC to use a backend that has been specified
with "-netdev".

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-22 10:06:03 +08:00
Thomas Huth 3a22ee2734 net: Remove the legacy "-net channel" parameter
It has never been documented, so hardly anybody knows about this
parameter, and it is marked as deprecated since QEMU v2.6.
Time to let it go now.

Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-22 10:05:26 +08:00
Mark Cave-Ayland d9caeb09b1 net: remove unused compute_mcast_idx() function
Now that all of the callers have been converted to compute the multicast index
inline using new net CRC functions, this function can now be dropped.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-22 10:01:27 +08:00
Mark Cave-Ayland e7a58fc71c rtl8139: use inline net_crc32() and bitshift instead of compute_mcast_idx()
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>
2017-12-22 10:01:27 +08:00
Mark Cave-Ayland 084e2b111b ne2000: use inline net_crc32() and bitshift instead of compute_mcast_idx()
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>
2017-12-22 10:01:27 +08:00
Mark Cave-Ayland 4227be63f0 ftgmac100: use inline net_crc32() and bitshift instead of compute_mcast_idx()
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>
2017-12-22 10:01:27 +08:00
Mark Cave-Ayland eedeaee73a lan9118: use inline net_crc32() and bitshift instead of compute_mcast_idx()
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>
2017-12-22 10:01:27 +08:00
Mark Cave-Ayland 308913bb43 opencores_eth: use inline net_crc32() and bitshift instead of compute_mcast_idx()
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>
2017-12-22 10:01:27 +08:00
Mark Cave-Ayland d00d6d0054 eepro100: use inline net_crc32() and bitshift instead of compute_mcast_idx()
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>
2017-12-22 10:01:27 +08:00
Mark Cave-Ayland 8f90bc2f8f sungem: fix multicast filter CRC calculation
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>
2017-12-22 10:00:47 +08:00
Mark Cave-Ayland a89a6b052a sunhme: switch sunhme over to use net_crc32_le()
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>
2017-12-22 10:00:47 +08:00
Mark Cave-Ayland 7c0348bd63 eepro100: switch eepro100 e100_compute_mcast_idx() over to use net_crc32()
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>
2017-12-22 09:59:52 +08:00
Mark Cave-Ayland cbbeca9181 pcnet: switch pcnet over to use net_crc32_le()
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>
2017-12-22 09:59:52 +08:00
Mark Cave-Ayland f1a7deb900 net: introduce net_crc32_le() function
This provides a standard ethernet CRC32 little-endian implementation.

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>
2017-12-22 09:59:52 +08:00
Mark Cave-Ayland eaba8f34f0 net: move CRC32 calculation from compute_mcast_idx() into its own net_crc32() function
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>
2017-12-22 09:55:03 +08:00
Ed Swierk via Qemu-devel d62644b46a e1000: Separate TSO and non-TSO contexts, fixing UDP TX corruption
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>
2017-12-22 09:53:50 +08:00
Ed Swierk via Qemu-devel 7d08c73e7b e1000, e1000e: Move per-packet TX offload flags out of context state
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>
2017-12-22 09:53:23 +08:00