Age | Commit message (Collapse) | Author |
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Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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The Ibex core contains a PLIC that although similar to the RISC-V spec
is not RISC-V spec compliant.
This patch implements a Ibex PLIC in a somewhat generic way.
As the current RISC-V PLIC needs tidying up, my hope is that as the Ibex
PLIC move towards spec compliance this PLIC implementation can be
updated until it can replace the current PLIC.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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This is the initial commit of the Ibex UART device. Serial TX is
working, while RX has been implemeneted but untested.
This is based on the documentation from:
https://docs.opentitan.org/hw/ip/uart/doc/
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: LIU Zhiwei<zhiwei_liu@c-sky.com>
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Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reported-by: Damien Hedde <damien.hedde@greensocs.com>
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Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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s390x update:
- update Linux headers to 5.8-rc1 (for vfio-ccw path handling)
- vfio-ccw: add support for path handling
- documentation fix
# gpg: Signature made Thu 18 Jun 2020 16:36:04 BST
# gpg: using RSA key C3D0D66DC3624FF6A8C018CEDECF6B93C6F02FAF
# gpg: issuer "cohuck@redhat.com"
# gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>" [marginal]
# gpg: aka "Cornelia Huck <huckc@linux.vnet.ibm.com>" [full]
# gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>" [full]
# gpg: aka "Cornelia Huck <cohuck@kernel.org>" [marginal]
# gpg: aka "Cornelia Huck <cohuck@redhat.com>" [marginal]
# Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0 18CE DECF 6B93 C6F0 2FAF
* remotes/cohuck/tags/s390x-20200618:
docs/s390x: fix vfio-ap device_del description
vfio-ccw: Add support for the CRW region and IRQ
s390x/css: Refactor the css_queue_crw() routine
vfio-ccw: Refactor ccw irq handler
vfio-ccw: Add support for the schib region
vfio-ccw: Refactor cleanup of regions
Linux headers: update
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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staging
# gpg: Signature made Thu 18 Jun 2020 14:16:22 BST
# gpg: using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [marginal]
# 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: (33 commits)
net: Drop the NetLegacy structure, always use Netdev instead
net: Drop the legacy "name" parameter from the -net option
hw/net/e1000e: Do not abort() on invalid PSRCTL register value
colo-compare: Fix memory leak in packet_enqueue()
net/colo-compare.c: Correct ordering in complete and finalize
net/colo-compare.c: Check that colo-compare is active
net/colo-compare.c: Only hexdump packets if tracing is enabled
net/colo-compare.c: Fix deadlock in compare_chr_send
chardev/char.c: Use qemu_co_sleep_ns if in coroutine
net/colo-compare.c: Create event_bh with the right AioContext
net: use peer when purging queue in qemu_flush_or_purge_queue_packets()
net: cadence_gem: Fix RX address filtering
net: cadence_gem: TX_LAST bit should be set by guest
net: cadence_gem: Update the reset value for interrupt mask register
net: cadnece_gem: Update irq_read_clear field of designcfg_debug1 reg
net: cadence_gem: Add support for jumbo frames
net: cadence_gem: Fix up code style
net: cadence_gem: Move tx/rx packet buffert to CadenceGEMState
net: cadence_gem: Set ISR according to queue in use
net: cadence_gem: Define access permission for interrupt registers
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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libFuzzer found using 'qemu-system-i386 -M q35':
qemu: hardware error: e1000e: PSRCTL.BSIZE0 cannot be zero
CPU #0:
EAX=00000000 EBX=00000000 ECX=00000000 EDX=00000663
ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000
EIP=0000fff0 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 00000000 0000ffff 00009300
CS =f000 ffff0000 0000ffff 00009b00
SS =0000 00000000 0000ffff 00009300
DS =0000 00000000 0000ffff 00009300
FS =0000 00000000 0000ffff 00009300
GS =0000 00000000 0000ffff 00009300
LDT=0000 00000000 0000ffff 00008200
TR =0000 00000000 0000ffff 00008b00
GDT= 00000000 0000ffff
IDT= 00000000 0000ffff
CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000
DR0=00000000 DR1=00000000 DR2=00000000 DR3=00000000
DR6=ffff0ff0 DR7=00000400
EFER=0000000000000000
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000
XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000
XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000
XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000
==1988== ERROR: libFuzzer: deadly signal
#6 0x7fae4d3ea894 in __GI_abort (/lib64/libc.so.6+0x22894)
#7 0x563f4cc59a1d in hw_error (qemu-fuzz-i386+0xe8ca1d)
#8 0x563f4d7c93f2 in e1000e_set_psrctl (qemu-fuzz-i386+0x19fc3f2)
#9 0x563f4d7b798f in e1000e_core_write (qemu-fuzz-i386+0x19ea98f)
#10 0x563f4d7afc46 in e1000e_mmio_write (qemu-fuzz-i386+0x19e2c46)
#11 0x563f4cc9a0a7 in memory_region_write_accessor (qemu-fuzz-i386+0xecd0a7)
#12 0x563f4cc99c13 in access_with_adjusted_size (qemu-fuzz-i386+0xeccc13)
#13 0x563f4cc987b4 in memory_region_dispatch_write (qemu-fuzz-i386+0xecb7b4)
It simply sent the following 2 I/O command to the e1000e
PCI BAR #2 I/O region:
writew 0x0100 0x0c00 # RCTL = E1000_RCTL_DTYP_MASK
writeb 0x2170 0x00 # PSRCTL = 0
2813 static void
2814 e1000e_set_psrctl(E1000ECore *core, int index, uint32_t val)
2815 {
2816 if (core->mac[RCTL] & E1000_RCTL_DTYP_MASK) {
2817
2818 if ((val & E1000_PSRCTL_BSIZE0_MASK) == 0) {
2819 hw_error("e1000e: PSRCTL.BSIZE0 cannot be zero");
2820 }
Instead of calling hw_error() which abort the process (it is
meant for CPU fatal error condition, not for device logging),
log the invalid request with qemu_log_mask(LOG_GUEST_ERROR)
and return, ignoring the request.
Cc: qemu-stable@nongnu.org
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Two defects are fixed:
1/ Detection of multicast frames
2/ Treating drop of mis-addressed frames as non-error
Signed-off-by: Tong Ho <tong.ho@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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TX_LAST bit should not be set by hardware, its set by guest to inform
the last bd of the frame.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Mask all interrupt on reset.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Advertise support of clear-on-read for ISR registers.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Add a property "jumbo-max-len", which sets default value of jumbo frames
up to 16,383 bytes. Add Frame length checks for standard and jumbo
frames.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Fix the code style for register definitions.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Moving this buffers to CadenceGEMState, as their size will be increased
more when JUMBO frames support is added.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Set ISR according to queue in use, added interrupt support for
all queues.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Q1 to Q7 ISR's are clear-on-read, IER/IDR registers
are write-only, mask reg are read-only.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Set irq's specific to a queue, present implementation is setting q1 irq
based on q0 status.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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During wrap around and reset, queues are pointing to initial base
address of queue 0, irrespective of what queue we are dealing with.
Fix it by assigning proper base address every time.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Enabling debug breaks the build, Fix them and make debug statements
always compilable. Fix few statements to use sized integer casting.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Log with GUEST_ERROR what the guest is doing wrong.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Bit #14 is "DE" for 'Descriptor Error':
When set, indicates a frame truncation caused by a frame
that does not fit within the current descriptor buffers,
and that the 21143 does not own the next descriptor.
[Table 4-1. RDES0 Bit Fields Description]
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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The tulip network driver in a qemu-system-hppa emulation is broken in
the sense that bigger network packages aren't received any longer and
thus even running e.g. "apt update" inside the VM fails.
The breakage was introduced by commit 8ffb7265af ("check frame size and
r/w data length") which added checks to prevent accesses outside of the
rx/tx buffers.
But the new checks were implemented wrong. The variable rx_frame_len
counts backwards, from rx_frame_size down to zero, and the variable len
is never bigger than rx_frame_len, so accesses just can't happen and the
checks are unnecessary.
On the contrary the checks now prevented bigger packages to be moved
into the rx buffers.
This patch reverts the wrong checks and were sucessfully tested with a
qemu-system-hppa emulation.
Fixes: 8ffb7265af ("check frame size and r/w data length")
Buglink: https://bugs.launchpad.net/bugs/1874539
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Removal of duplicated RSC definitions. Changing names of the
fields to ones defined in the Linux header.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Save and restore RSS/hash report configuration.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Suggest VIRTIO_NET_F_HASH_REPORT if specified in device
parameters.
If the VIRTIO_NET_F_HASH_REPORT is set,
the device extends configuration space. If the feature
is negotiated, the packet layout is extended to
accomodate the hash information. In this case deliver
packet's hash value and report type in virtio header
extension.
Use for configuration the same procedure as already
used for RSS. We add two fields in rss_data that
controls what the device does with the calculated hash
if rss_data.enabled is set. If field 'populate' is set
the hash is set in the packet, if field 'redirect' is
set the hash is used to decide the queue to place the
packet to.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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If VIRTIO_NET_F_RSS negotiated and RSS is enabled, process
incoming packets, calculate packet's hash and place the
packet into respective RX virtqueue.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Optionally report RSS feature.
Handle RSS configuration command and keep RSS parameters
in virtio-net device context.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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Block layer patches:
- enhance handling of size-related BlockConf properties
- nvme: small fixes, refactoring and cleanups
- virtio-blk: On restart, process queued requests in the proper context
- icount: make dma reads deterministic
- iotests: Some fixes for rarely run cases
- .gitignore: Ignore storage-daemon files
- Minor code cleanups
# gpg: Signature made Wed 17 Jun 2020 15:47:19 BST
# gpg: using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg: issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6
* remotes/kevin/tags/for-upstream: (43 commits)
iotests: Add copyright line in qcow2.py
iotests/{190,291}: compat=0.10 is unsupported
iotests/229: data_file is unsupported
iotests/292: data_file is unsupported
iotests/041: Skip test_small_target for qed
iotests.py: Add skip_for_formats() decorator
block: lift blocksize property limit to 2 MiB
qdev-properties: add getter for size32 and blocksize
block: make BlockConf size props 32bit and accept size suffixes
qdev-properties: make blocksize accept size suffixes
qdev-properties: add size32 property type
qdev-properties: blocksize: use same limits in code and description
block: consolidate blocksize properties consistency checks
virtio-blk: store opt_io_size with correct size
.gitignore: Ignore storage-daemon files
hw/block/nvme: verify msix_init_exclusive_bar() return value
hw/block/nvme: add msix_qsize parameter
hw/block/nvme: Verify msix_vector_use() returned value
hw/block/nvme: factor out controller identify setup
hw/block/nvme: do cmb/pmr init as part of pci init
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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'remotes/kraxel/tags/microvm-20200617-pull-request' into staging
microvm: memory config tweaks
# gpg: Signature made Wed 17 Jun 2020 13:28:44 BST
# gpg: using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138
* remotes/kraxel/tags/microvm-20200617-pull-request:
microvm: move virtio base to 0xfeb00000
x86: move max-ram-below-4g to pc
microvm: drop max-ram-below-4g support
microvm: use 3G split unconditionally
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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The crw region can be used to obtain information about
Channel Report Words (CRW) from vfio-ccw driver.
Currently only channel-path related CRWs are passed to
QEMU from vfio-ccw driver.
Signed-off-by: Farhan Ali <alifm@linux.ibm.com>
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200505125757.98209-7-farman@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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We have a use case (vfio-ccw) where a CRW is already built and
ready to use. Rather than teasing out the components just to
reassemble it later, let's rework this code so we can queue a
fully-qualified CRW directly.
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200505125757.98209-6-farman@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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Make it easier to add new ones in the future.
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200505125757.98209-5-farman@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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The schib region can be used to obtain the latest SCHIB from the host
passthrough subchannel. Since the guest SCHIB is virtualized,
we currently only update the path related information so that the
guest is aware of any path related changes when it issues the
'stsch' instruction.
Signed-off-by: Farhan Ali <alifm@linux.ibm.com>
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200505125757.98209-4-farman@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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While we're at it, add a g_free() for the async_cmd_region that
is the last thing currently created. g_free() knows how to handle
NULL pointers, so this makes it easier to remember what cleanups
need to be performed when new regions are added.
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200505125757.98209-3-farman@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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Logical and physical block sizes in QEMU are limited to 32 KiB.
This appears unnecessarily tight, and we've seen bigger block sizes
handy at times.
Lift the limitation up to 2 MiB which appears to be good enough for
everybody, and matches the qcow2 cluster size limit.
Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200528225516.1676602-9-rvkagan@yandex-team.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Add getter for size32, and use it for blocksize, too.
In its human-readable branch, it reports approximate size in
human-readable units next to the exact byte value, like the getter for
64bit size does.
Adjust the expected test output accordingly.
Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200528225516.1676602-8-rvkagan@yandex-team.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Convert all size-related properties in BlockConf to 32bit. This will
accommodate bigger block sizes (in a followup patch). This also allows
to make them all accept size suffixes, either via DEFINE_PROP_BLOCKSIZE
or via DEFINE_PROP_SIZE32.
Also, since min_io_size is exposed to the guest by scsi and virtio-blk
devices as an uint16_t in units of logical blocks, introduce an
additional check in blkconf_blocksizes to prevent its silent truncation.
Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Message-Id: <20200528225516.1676602-7-rvkagan@yandex-team.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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It appears convenient to be able to specify physical_block_size and
logical_block_size using common size suffixes.
Teach the blocksize property setter to interpret them. Also express the
upper and lower limits in the respective units.
Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200528225516.1676602-6-rvkagan@yandex-team.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Introduce size32 property type which handles size suffixes (k, m, g)
just like size property, but is uint32_t rather than uint64_t. It's
going to be useful for properties that are byte sizes but are inherently
32bit, like BlkConf.opt_io_size or .discard_granularity (they are
switched to this new property type in a followup commit).
The getter for size32 is left out for a separate patch as its benefit is
less obvious, and it affects test output; for now the regular uint32
getter is used.
Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Message-Id: <20200528225516.1676602-5-rvkagan@yandex-team.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Make it easier (more visible) to maintain the limits on the blocksize
properties in sync with the respective description, by using macros both
in the code and in the description.
Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200528225516.1676602-4-rvkagan@yandex-team.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Several block device properties related to blocksize configuration must
be in certain relationship WRT each other: physical block must be no
smaller than logical block; min_io_size, opt_io_size, and
discard_granularity must be a multiple of a logical block.
To ensure these requirements are met, add corresponding consistency
checks to blkconf_blocksizes, adjusting its signature to communicate
possible error to the caller. Also remove the now redundant consistency
checks from the specific devices.
Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Message-Id: <20200528225516.1676602-3-rvkagan@yandex-team.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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The width of opt_io_size in virtio_blk_config is 32bit. However, it's
written with virtio_stw_p; this may result in value truncation, and on
big-endian systems with legacy virtio in completely bogus readings in
the guest.
Use the appropriate accessor to store it.
Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200528225516.1676602-2-rvkagan@yandex-team.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Pass an Error to msix_init_exclusive_bar() and check it.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Message-Id: <20200609190333.59390-23-its@irrelevant.dk>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Decouple the requested maximum number of ioqpairs (param max_ioqpairs)
from the number of MSI-X interrupt vectors by introducing a new
msix_qsize parameter and initialize MSI-X with that. This allows
emulating a device that has fewer vectors than I/O queue pairs and also
allows more than 2048 queue pairs. To keep the device behaving as
previously, use a msix_qsize default of 65 (default max_ioqpairs + 1).
This decoupling was actually suggested by Maxim some time ago in a
slightly different context, so adding a Suggested-by.
Suggested-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Message-Id: <20200609190333.59390-22-its@irrelevant.dk>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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msix_vector_use() returns -EINVAL on error. Assert it won't.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200609190333.59390-21-its@irrelevant.dk>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Message-Id: <20200609190333.59390-20-its@irrelevant.dk>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200609190333.59390-19-its@irrelevant.dk>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200609190333.59390-18-its@irrelevant.dk>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Message-Id: <20200609190333.59390-17-its@irrelevant.dk>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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