Commit Graph

40514 Commits

Author SHA1 Message Date
Jeff Cody
b15deac795 block: vpc - prevent overflow if max_table_entries >= 0x40000000
When we allocate the pagetable based on max_table_entries, we multiply
the max table entry value by 4 to accomodate a table of 32-bit integers.
However, max_table_entries is a uint32_t, and the VPC driver accepts
ranges for that entry over 0x40000000.  So during this allocation:

s->pagetable = qemu_try_blockalign(bs->file, s->max_table_entries * 4);

The size arg overflows, allocating significantly less memory than
expected.

Since qemu_try_blockalign() size argument is size_t, cast the
multiplication correctly to prevent overflow.

The value of "max_table_entries * 4" is used elsewhere in the code as
well, so store the correct value for use in all those cases.

We also check the Max Tables Entries value, to make sure that it is <
SIZE_MAX / 4, so we know the pagetable size will fit in size_t.

Cc: qemu-stable@nongnu.org
Reported-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-07-27 17:19:06 +02:00
Peter Maydell
3737129917 configure: Work around broken static pkg-config info for Ubuntu gnutls
Unfortunately Ubuntu's pkg-config information for gnutls is broken
for the static linking case, and outputs --libs options which the
compiler does not recognize. Work around this problem by testing
that the --cflags/--libs output will at least allow compilation
before enabling gnutls support.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1437758888-22486-1-git-send-email-peter.maydell@linaro.org
2015-07-27 16:15:32 +01:00
Jason Wang
c9b11f971c virtio-blk: only clear VIRTIO_F_ANY_LAYOUT for legacy device
Chapter 6.3 of spec said

"
Transitional devices MUST offer, and if offered by the device
transitional drivers MUST accept the following:

VIRTIO_F_ANY_LAYOUT (27)
"

So this patch only clear VIRTIO_F_LAYOUT for legacy device.

Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: qemu-block@nongnu.org
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-27 18:11:53 +03:00
Jason Wang
efb8206ca7 virtio-blk: fail get_features when both scsi and 1.0 were set
SCSI passthrough was no longer supported in virtio 1.0, so this patch
fail the get_features() when both 1.0 and scsi is set. And also only
advertise VIRTIO_BLK_F_SCSI for legacy virtio-blk device.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-27 18:11:53 +03:00
Jason Wang
9d5b731dd2 virtio: get_features() can fail
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-27 18:11:53 +03:00
Michael S. Tsirkin
27462695cd virtio-pci: fix memory MR cleanup for modern
Each memory_region_add_subregion must be paired with
memory_region_del_subregion.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-27 18:11:53 +03:00
Aurelien Jarno
bbeb82395e tcg: mark temps as mem_coherent = 0 for mov with a constant
When a constant has to be loaded in a mov op, we fail to set
mem_coherent = 0. This patch fixes that.

Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <1437994568-7825-3-git-send-email-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-07-27 07:25:40 -07:00
Aurelien Jarno
7df69deadf tcg: correctly mark dead inputs for mov with a constant
When tcg_reg_alloc_mov propagate a constant, we failed to correctly mark
a temp as dead if the liveness analysis hints so. This fixes the
following assert when configure with --enable-debug-tcg:

  qemu-x86_64: tcg/tcg.c:1827: tcg_reg_alloc_bb_end: Assertion `ts->val_type == TEMP_VAL_DEAD' failed.

Cc: Richard Henderson <rth@twiddle.net>
Reported-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <1437994568-7825-2-git-send-email-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-07-27 07:25:40 -07:00
Peter Maydell
122e7dab8a Pull request
Here are NIC fixes from Fam Zheng that prevent rx hangs (caused by NIC models
 where .can_receive() stops rx but qemu_flush_queued_packets() isn't called).
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Merge remote-tracking branch 'remotes/stefanha/tags/net-pull-request' into staging

Pull request

Here are NIC fixes from Fam Zheng that prevent rx hangs (caused by NIC models
where .can_receive() stops rx but qemu_flush_queued_packets() isn't called).

# gpg: Signature made Mon Jul 27 14:51:48 2015 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"

* remotes/stefanha/tags/net-pull-request:
  axienet: Flush queued packets when rx is done
  dp8393x: Flush packets when link comes up
  stellaris_enet: Flush queued packets when read done
  mipsnet: Flush queued packets when receiving is enabled
  milkymist-minimac2: Flush queued packets when link comes up
  mcf_fec: Drop mcf_fec_can_receive
  etsec: Flush queue when rx buffer is consumed
  etsec: Move etsec_can_receive into etsec_receive
  usbnet: Drop usbnet_can_receive
  eepro100: Drop nic_can_receive
  pcnet: Drop pcnet_can_receive
  xgmac: Drop packets with eth_can_rx is false.
  hw/net: fix mcf_fec driver receiver
  hw/net: add simple phy support to mcf_fec driver
  hw/net: add ANLPAR bit definitions to generic mii
  hw/net: create common collection of MII definitions

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-07-27 14:53:42 +01:00
Fam Zheng
f9f7492ea4 axienet: Flush queued packets when rx is done
eth_can_rx checks s->rxsize and returns false if it is non-zero. Because
of the .can_receive semantics change, this will make the incoming queue
disabled by peer, until it is explicitly flushed. So we should flush it
when s->rxsize is becoming zero.

Squash eth_can_rx semantics into etx_rx and drop .can_receive()
callback, also add flush when rx buffer becomes available again after a
packet gets queued.

The other conditions, "!axienet_rx_resetting(s) &&
axienet_rx_enabled(s)" are OK because enet_write already calls
qemu_flush_queued_packets when the register bits are changed.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1436955553-22791-13-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-27 14:12:18 +01:00
Fam Zheng
4594f93a73 dp8393x: Flush packets when link comes up
.can_receive callback changes semantics that once return 0, backend will
try sending again until explicitly flushed, change the device to meet
that.

dp8393x_can_receive checks SONIC_CR_RXEN bit in SONIC_CR register and
SONIC_ISR_RBE bit in SONIC_ISR register, try flushing the queue when
either bit is being updated.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1436955553-22791-12-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-27 14:12:18 +01:00
Fam Zheng
1ef4a6069f stellaris_enet: Flush queued packets when read done
If s->np reaches 31, the queue will be disabled by peer when it sees
stellaris_enet_can_receive() returns false, until we explicitly flushes
it which notifies the peer. Do this when guest is done reading all
existing data.

Move the semantics to stellaris_enet_receive, by returning 0 when the
buffer is full, so that new packets will be queued.  In
stellaris_enet_read, flush and restart the queue when guest has done
reading.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1436955553-22791-11-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-27 14:12:18 +01:00
Fam Zheng
1dd58ae058 mipsnet: Flush queued packets when receiving is enabled
Drop .can_receive and move the semantics to mipsnet_receive, by
returning 0.

After 0 is returned, we must flush the queue explicitly to restart it:
Call qemu_flush_queued_packets when s->busy or s->rx_count is being
updated.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1436955553-22791-10-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-27 14:12:18 +01:00
Fam Zheng
3b7031e960 milkymist-minimac2: Flush queued packets when link comes up
Drop .can_receive and move the semantics into minimac2_rx, by returning
0.

That is once minimac2_rx returns 0, incoming packets will be queued
until the queue is explicitly flushed. We do this when s->regs[R_STATE0]
or s->regs[R_STATE1] is changed in minimac2_write.

Also drop the unused trace point.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1436955553-22791-9-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-27 14:12:18 +01:00
Fam Zheng
e813f0d881 mcf_fec: Drop mcf_fec_can_receive
The semantics of .can_receive requires us to flush the queue explicitly
when s->rx_enabled becomes true after it returns 0, but the packet being
queued is not meaningful since the guest hasn't activated the card.
Let's just drop the packet in this case.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1436955553-22791-8-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-27 14:12:18 +01:00
Fam Zheng
575bafd1f3 etsec: Flush queue when rx buffer is consumed
The BH will be scheduled when etsec->rx_buffer_len is becoming 0, which
is the condition of queuing.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1436955553-22791-7-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-27 14:12:18 +01:00
Fam Zheng
b6cb6610c2 etsec: Move etsec_can_receive into etsec_receive
When etsec_reset returns 0, peer would queue the packet as if
.can_receive returns false. Drop etsec_can_receive and let etsec_receive
carry the semantics.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1436955553-22791-6-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-27 14:12:18 +01:00
Fam Zheng
913440249e usbnet: Drop usbnet_can_receive
usbnet_receive already drops packet if rndis_state is not
RNDIS_DATA_INITIALIZED, and queues packet if in buffer is not available.
The only difference is s->dev.config but that is similar to rndis_state.

Drop usbnet_can_receive and move these checks to usbnet_receive, so that
we don't need to explicitly flush the queue when s->dev.config changes
value.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1436955553-22791-5-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-27 14:12:18 +01:00
Fam Zheng
363db4b249 eepro100: Drop nic_can_receive
nic_receive already checks the conditions and drop packets if false.
Due to the new semantics since 6e99c63 ("net/socket: Drop
net_socket_can_send"), having .can_receive returning 0 requires us to
explicitly flush the queued packets when the conditions are becoming
true, but queuing the packets when guest driver is not ready doesn't
make much sense.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1436955553-22791-4-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-27 14:12:18 +01:00
Fam Zheng
b0ba0b9b6b pcnet: Drop pcnet_can_receive
pcnet_receive already checks the conditions and drop packets if false.
Due to the new semantics since 6e99c63 ("net/socket: Drop
net_socket_can_send"), having .can_receive returning 0 requires us to
explicitly flush the queued packets when the conditions are becoming
true, but queuing the packets when guest driver is not ready doesn't
make much sense.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1436955553-22791-3-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-27 14:12:18 +01:00
Fam Zheng
8c8c460c5f xgmac: Drop packets with eth_can_rx is false.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1436955553-22791-2-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-27 14:12:18 +01:00
Greg Ungerer
491a1f494e hw/net: fix mcf_fec driver receiver
The network mcf_fec driver emulated receive side method is returning a
result of 0 causing the network layer to disable receive for this emulated
device. This results in the guest only ever receiving one packet.

Fix the recieve side processing to return the number of bytes that we
passed back through to the guest.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435296436-12152-5-git-send-email-gerg@uclinux.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-27 14:12:04 +01:00
Greg Ungerer
299f7bec5a hw/net: add simple phy support to mcf_fec driver
The Linux fec driver needs at least basic phy support to probe and work.
The current qemu mcf_fec emulation has no support for the reading or
writing of the MDIO lines to access an attached phy.

This code adds a very simple set of register results for a fixed phy
setup - very similar to that used on an m5208evb board. This is enough
to probe and identify an emulated attached phy.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435296436-12152-4-git-send-email-gerg@uclinux.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-27 14:12:04 +01:00
Greg Ungerer
3634869b27 hw/net: add ANLPAR bit definitions to generic mii
Add a base set of bit definitions for the standard MII phy "Auto-Negotiation
Link Partner Ability Register" (ANLPAR).

The original definitions moved into mii.h from the allwinner_emac driver
did not define these.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435296436-12152-3-git-send-email-gerg@uclinux.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-27 14:12:04 +01:00
Greg Ungerer
3e230569bf hw/net: create common collection of MII definitions
Create a common set of definitions of address and register values for
ethernet MII phys. A few of the current ethernet drivers have at least
a partial set of these definitions. Others just use hard coded raw
constant numbers.

This initial set is copied directly from the allwinner_emac code.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435296436-12152-2-git-send-email-gerg@uclinux.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-27 14:12:04 +01:00
Peter Maydell
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Merge remote-tracking branch 'remotes/jnsnow/tags/cve-2015-5154-pull-request' into staging

# gpg: Signature made Mon Jul 27 13:01:10 2015 BST using RSA key ID AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@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: FAEB 9711 A12C F475 812F  18F2 88A9 064D 1835 61EB
#      Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76  CBD0 7DEF 8106 AAFC 390E

* remotes/jnsnow/tags/cve-2015-5154-pull-request:
  ide: Clear DRQ after handling all expected accesses
  ide/atapi: Fix START STOP UNIT command completion
  ide: Check array bounds before writing to io_buffer (CVE-2015-5154)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-07-27 13:10:00 +01:00
Daniel P. Berrange
019c2ab862 crypto: extend unit tests to cover decryption too
The current unit test only verifies the encryption API,
resulting in us missing a recently introduced bug in the
decryption API from commit d3462e3. It was fortunately
later discovered & fixed by commit bd09594, thanks to the
QEMU I/O tests for qcow2 encryption, but we should really
detect this directly in the crypto unit tests. Also remove
an accidental debug message and simplify some asserts.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1437468902-23230-1-git-send-email-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-27 12:22:01 +02:00
Daniel P. Berrange
6775e2c429 crypto: fix built-in AES decrypt function
The qcrypto_cipher_decrypt_aes method was using the wrong
key material, and passing the wrong mode. This caused it
to incorrectly decrypt ciphertext.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1437740634-6261-1-git-send-email-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-27 12:22:01 +02:00
Michael S. Tsirkin
09999a5f7f virtio: set any_layout in virtio core
Exceptions:
    - virtio-blk
    - compat machine types

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-07-27 11:24:48 +03:00
Michael S. Tsirkin
cd4bfbb20d virtio-9p: fix any_layout
virtio pci allows any device to have a modern interface,
this in turn requires ANY_LAYOUT support.
Fix up ANY_LAYOUT for virtio-9p.

Reported-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
2015-07-27 11:24:48 +03:00
Michael S. Tsirkin
7882080388 virtio-serial: fix ANY_LAYOUT
Don't assume a specific layout for control messages.
Required by virtio 1.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
2015-07-27 11:24:48 +03:00
Michael S. Tsirkin
5f456073aa virtio: hide legacy features from modern guests
NOTIFY_ON_EMPTY, ANY_LAYOUT and BAD are only valid on the legacy
interface.

Hide them from modern guests.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-07-27 09:08:50 +03:00
Kevin Wolf
cb72cba830 ide: Clear DRQ after handling all expected accesses
This is additional hardening against an end_transfer_func that fails to
clear the DRQ status bit. The bit must be unset as soon as the PIO
transfer has completed, so it's better to do this in a central place
instead of duplicating the code in all commands (and forgetting it in
some).

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
2015-07-26 23:42:53 -04:00
Kevin Wolf
03441c3a4a ide/atapi: Fix START STOP UNIT command completion
The command must be completed on all code paths. START STOP UNIT with
pwrcnd set should succeed without doing anything.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
2015-07-26 23:42:53 -04:00
Kevin Wolf
d2ff858545 ide: Check array bounds before writing to io_buffer (CVE-2015-5154)
If the end_transfer_func of a command is called because enough data has
been read or written for the current PIO transfer, and it fails to
correctly call the command completion functions, the DRQ bit in the
status register and s->end_transfer_func may remain set. This allows the
guest to access further bytes in s->io_buffer beyond s->data_end, and
eventually overflowing the io_buffer.

One case where this currently happens is emulation of the ATAPI command
START STOP UNIT.

This patch fixes the problem by adding explicit array bounds checks
before accessing the buffer instead of relying on end_transfer_func to
function correctly.

Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
2015-07-26 23:42:53 -04:00
Peter Maydell
f793d97e45 * qemu-char fixes
* SCSI fixes (including CVE-2015-5158)
 * RCU fixes
 * Framebuffer logic to set DIRTY_MEMORY_VGA
 * Fix compiler warning for --disable-vnc
 * qemu-doc fixes
 * x86 TCG pasto fix
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* qemu-char fixes
* SCSI fixes (including CVE-2015-5158)
* RCU fixes
* Framebuffer logic to set DIRTY_MEMORY_VGA
* Fix compiler warning for --disable-vnc
* qemu-doc fixes
* x86 TCG pasto fix

# gpg: Signature made Fri Jul 24 12:57:52 2015 BST using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@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: 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:
  target-i386/FPU: a misprint in helper_fistll_ST0
  qemu-doc: fix typos
  framebuffer: set DIRTY_MEMORY_VGA on RAM that is used for the framebuffer
  memory: count number of active VGA logging clients
  vl: Fix compiler warning for builds without VNC
  scsi: Handle no media case for scsi_get_configuration
  rcu: actually register threads that have RCU read-side critical sections
  scsi: fix buffer overflow in scsi_req_parse_cdb (CVE-2015-5158)
  vnc: fix memory leak
  qemu-char: Fix missed data on unix socket
  qemu-char: handle EINTR for TCP character devices
  exec.c: Use atomic_rcu_read() to access dispatch in memory_region_section_get_iotlb()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-07-24 13:07:10 +01:00
Dmitry Poletaev
178846bdd9 target-i386/FPU: a misprint in helper_fistll_ST0
There is a cut-and-paste mistake in the patch
https://lists.gnu.org/archive/html/qemu-devel/2014-11/msg01657.html .
It cause errors in guest work.  Here is the bugfix.

Signed-off-by: Dmitry Poletaev <poletaev-qemu@yandex.ru>
Reported-by: Kirill Batuzov <batuzovk@ispras.ru>
Message-Id: <2692911436348920@web2m.yandex.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-24 13:57:45 +02:00
Gonglei
d274e07c6d qemu-doc: fix typos
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Message-Id: <1435917057-9396-1-git-send-email-arei.gonglei@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-24 13:57:45 +02:00
Paolo Bonzini
c1076c3e13 framebuffer: set DIRTY_MEMORY_VGA on RAM that is used for the framebuffer
The MemoryRegionSection contains enough information to access the
RAM region underlying the framebuffer, and can be cached inside the
display device.

By doing this, the new framebuffer_update_memory_section function can
enable dirty memory logging on the relevant RAM region.  The function
must be called whenever the stride or base of the framebuffer changes;
a simple way to cover these cases is to call it on every full frame
invalidation, which is a rare case.

framebuffer_update_display now works entirely on a MemoryRegionSection,
without going through cpu_physical_memory_map/unmap.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-24 13:57:45 +02:00
Paolo Bonzini
deb809edb8 memory: count number of active VGA logging clients
For a board that has multiple framebuffer devices, both of them
might want to use DIRTY_MEMORY_VGA on the same memory region.
The lack of reference counting in memory_region_set_log makes
this very awkward to implement.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-24 13:57:45 +02:00
Stefan Weil
fb43096959 vl: Fix compiler warning for builds without VNC
This regression was caused by commit 70b94331.

  CC    vl.o
vl.c: In function ‘select_display’:
vl.c:2064:12: error: unused variable ‘err’ [-Werror=unused-variable]
     Error *err = NULL;
            ^

Reported-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <1437587610-26433-1-git-send-email-sw@weilnetz.de>
Reviewed-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-24 13:57:45 +02:00
Matthew Rosato
7d99f4c1b5 scsi: Handle no media case for scsi_get_configuration
Currently, scsi_get_configuration always returns a current
profile (DVD or CD), even when there is actually no media present.
By comparison, ide/atapi uses a default profile of 0 (MMC_PROFILE_NONE)
for this case and checks for tray_open, so let's do the same for scsi.

This fixes a problem I'm seeing with Fedora 22 guests where systemd
cdrom_id fails to unmount after a QEMU-initiated eject against a
scsi cdrom device because it believes the media is still present
(but unreadable).

Signed-off-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Message-Id: <1436986352-10695-1-git-send-email-mjrosato@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-24 13:57:45 +02:00
Paolo Bonzini
ab28bd2312 rcu: actually register threads that have RCU read-side critical sections
Otherwise, grace periods are detected too early!

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-24 13:57:45 +02:00
Paolo Bonzini
c170aad8b0 scsi: fix buffer overflow in scsi_req_parse_cdb (CVE-2015-5158)
This is a guest-triggerable buffer overflow present in QEMU 2.2.0
and newer.  scsi_cdb_length returns -1 as an error value, but the
caller does not check it.

Luckily, the massive overflow means that QEMU will just SIGSEGV,
making the impact much smaller.

Reported-by: Zhu Donghai (朱东海) <donghai.zdh@alibaba-inc.com>
Fixes: 1894df0281
Reviewed-by: Fam Zheng <famz@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-24 13:57:44 +02:00
Gonglei
60928458e5 vnc: fix memory leak
If vnc's password is configured, it will leak memory
which cipher variable pointed on every vnc connection.

Cc: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Message-Id: <1437556133-11268-1-git-send-email-arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-24 13:57:44 +02:00
Peter Maydell
30fdfae49d Last minute fixes for 2.4.
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Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20150723' into staging

Last minute fixes for 2.4.

# gpg: Signature made Fri Jul 24 04:42:31 2015 BST using RSA key ID 4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg:                 aka "Richard Henderson <rth@redhat.com>"
# gpg:                 aka "Richard Henderson <rth@twiddle.net>"

* remotes/rth/tags/pull-tcg-20150723:
  tcg/optimize: fix tcg_opt_gen_movi
  tcg/aarch64: use 32-bit offset for 32-bit softmmu emulation
  tcg/aarch64: use 32-bit offset for 32-bit user-mode emulation
  tcg/aarch64: add ext argument to tcg_out_insn_3310
  tcg/i386: Extend addresses for 32-bit guests

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-07-24 11:11:30 +01:00
Peter Maydell
f75b709853 VFIO fixes for v2.4.0-rc3
- Fix Realtek NIC quirk (Alex Williamson)
 - Restore bootindex functionality (Alex Williamson)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
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Merge remote-tracking branch 'remotes/awilliam/tags/vfio-fixes-20150723.0' into staging

VFIO fixes for v2.4.0-rc3
- Fix Realtek NIC quirk (Alex Williamson)
- Restore bootindex functionality (Alex Williamson)

# gpg: Signature made Thu Jul 23 19:51:23 2015 BST using RSA key ID 3BB08B22
# gpg: Good signature from "Alex Williamson <alex.williamson@redhat.com>"
# gpg:                 aka "Alex Williamson <alex@shazbot.org>"
# gpg:                 aka "Alex Williamson <alwillia@redhat.com>"
# gpg:                 aka "Alex Williamson <alex.l.williamson@gmail.com>"

* remotes/awilliam/tags/vfio-fixes-20150723.0:
  vfio/pci: Fix bootindex
  vfio/pci: Fix RTL8168 NIC quirks

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-07-24 09:17:44 +01:00
Aurelien Jarno
961521261a tcg/optimize: fix tcg_opt_gen_movi
Due to a copy&paste, the new op value is tested against mov_i32 instead
of movi_i32. The test is therefore always false. Fix that.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <1436544211-2769-1-git-send-email-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-07-23 20:37:12 -07:00
Richard Henderson
80adb8fcad tcg/aarch64: use 32-bit offset for 32-bit softmmu emulation
Similar to the same fix for user-mode, except this instance
occurs on the softmmu path.  Again, the tlb addend must be
the base register, while the guest address is the index.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-07-23 20:19:44 -07:00
Paolo Bonzini
ffc6372851 tcg/aarch64: use 32-bit offset for 32-bit user-mode emulation
Thanks to the previous patch, it is now easy for tcg_out_qemu_ld and
tcg_out_qemu_st to use a 32-bit zero extended offset.  However, the
guest base register x28 must be the base and addr_reg must be the
index.

Reported-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1436974021-28978-3-git-send-email-pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-07-23 15:09:12 -07:00