Commit Graph

63482 Commits

Author SHA1 Message Date
Yuval Shaia
abc665aae3 hw/rdma: Print backend QP number in hex format
To be consistent with other prints throughout the code fix places that
print it as decimal number.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-12-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2018-08-18 18:00:48 +03:00
Yuval Shaia
292dce627b hw/rdma: Cosmetic change - move to generic function
To ease maintenance of struct comp_thread move all related code to
dedicated function.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-11-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2018-08-18 18:00:39 +03:00
Yuval Shaia
67b32fe250 hw/pvrdma: Cosmetic change - indent right
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-10-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2018-08-18 18:00:30 +03:00
Yuval Shaia
7131c4b028 hw/rdma: Reorder resource cleanup
To be consistence with allocation do the reverse order in deallocation

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-9-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2018-08-18 18:00:22 +03:00
Yuval Shaia
4c408c9d5b hw/rdma: Do not allocate memory for non-dma MR
There is no use in the memory allocated for non-dma MR.
Delete the code that allocates it.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-8-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2018-08-18 18:00:15 +03:00
Yuval Shaia
7f99daadbd hw/rdma: Delete useless structure RdmaRmUserMR
The structure RdmaRmUserMR has no benefits, remove it an move all its
fields to struct RdmaRmMR.

Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Message-Id: <20180805153518.2983-7-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2018-08-18 18:00:06 +03:00
Yuval Shaia
6e7dba23af hw/pvrdma: Make default pkey 0xFFFF
0x7FFF is not the default pkey - fix it.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-6-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2018-08-18 17:59:58 +03:00
Yuval Shaia
eca0f2a6be hw/pvrdma: Clean CQE before use
Next CQE is fetched from CQ ring, clean it before usage as it still
carries old CQE values.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-5-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2018-08-18 17:59:50 +03:00
Yuval Shaia
ef846e026c hw/rdma: Modify debug macros
- Add line counter to ease navigation in log
- Print rdma instead of pvrdma

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-4-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2018-08-18 17:59:42 +03:00
Yuval Shaia
b462a13480 hw/pvrdma: Bugfix - provide the correct attr_mask to query_qp
Calling rdma_rm_query_qp with attr_mask equals to -1 leads to error
where backend query_qp fails to retrieve the needed QP attributes.
Fix it by providing the attr_mask we got from driver.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Message-Id: <20180805153518.2983-3-yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2018-08-18 17:59:33 +03:00
Yuval Shaia
751522275a hw/rdma: Make distinction between device init and start modes
There are certain operations that are well considered as part of device
configuration while others are needed only when "start" command is
triggered by the guest driver. An example of device initialization step
is msix_init and example of "device start" stage is the creation of a CQ
completion handler thread.

Driver expects such distinction - implement it.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-2-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2018-08-18 17:59:23 +03:00
Peter Maydell
a544c9110d VFIO update 2018-08-17
- Enhance balloon inhibitor for multiple users and use around vfio
    device assignment (Alex Williamson)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.14 (GNU/Linux)
 
 iQIcBAABAgAGBQJbdvs5AAoJECObm247sIsioA4QAKWqKWnqOu4AwIdADzOEKTv+
 jSG+M6S6uEBbhk6hC+scnIlyA6MwiTmh8uJYDOTPy/4S9kv4+Bj/LykoJxk1T3UI
 jREP+EHMUe13YfG//5yIb0HLIBEI7VJeBteyksboZ8KTO4kMt4RCnk1lpfARxIjB
 ouMIngGq9ltOWAann9tcjGaPXfKjB9LSSYyhQMlqSzl7LckOsGAgmdFU7uurlTrq
 a5kB2oRNP7CSbF/fDTsWd8nsCGy357Cou42KpsTRQN+TeLmqExQXguCQLszBup3H
 VYwS0FzpR1ix7jOuafHLcBh9VgSEFYWf71oznMoPDiv2vVjKGsDG3Tzu5Xqz0vsI
 ynKXCXNbXZhpazZzw8ThXoLs8mWLWSrtqvjQItDmrl0kboY6ZwOZc8m+PQmIqtHQ
 RDcVlCT0TecwYXBZ5G930JpcEsUFBKfZrla+v2W0ON6HVA6eVBweSata5r08XvHK
 P2rbHgO6NSDZTMZUOborh/sbINb61PNW7h7inigHzpDJxjseIz/vO+mVjfsCZMed
 dSu/0VYCbA0cS2IK21zZFsR4LNlL4yzFzhONdBqbZD7zhiZL25IcZV/TVzHJE+zS
 su7uDSLNihJYOXAXO7s0Ne2vO5lZzpYykVFOAmQQicxcYZz+u8LxXY+NlTjKJhEv
 x3fobaflymrG7xkRy3xq
 =JQ6k
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/awilliam/tags/vfio-update-20180817.0' into staging

VFIO update 2018-08-17

 - Enhance balloon inhibitor for multiple users and use around vfio
   device assignment (Alex Williamson)

# gpg: Signature made Fri 17 Aug 2018 17:43:37 BST
# gpg:                using RSA key 239B9B6E3BB08B22
# 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>"
# Primary key fingerprint: 42F6 C04E 540B D1A9 9E7B  8A90 239B 9B6E 3BB0 8B22

* remotes/awilliam/tags/vfio-update-20180817.0:
  vfio/ccw/pci: Allow devices to opt-in for ballooning
  vfio: Inhibit ballooning based on group attachment to a container
  kvm: Use inhibit to prevent ballooning without synchronous mmu
  balloon: Allow multiple inhibit users

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-08-17 18:24:38 +01:00
Alex Williamson
238e917285 vfio/ccw/pci: Allow devices to opt-in for ballooning
If a vfio assigned device makes use of a physical IOMMU, then memory
ballooning is necessarily inhibited due to the page pinning, lack of
page level granularity at the IOMMU, and sufficient notifiers to both
remove the page on balloon inflation and add it back on deflation.
However, not all devices are backed by a physical IOMMU.  In the case
of mediated devices, if a vendor driver is well synchronized with the
guest driver, such that only pages actively used by the guest driver
are pinned by the host mdev vendor driver, then there should be no
overlap between pages available for the balloon driver and pages
actively in use by the device.  Under these conditions, ballooning
should be safe.

vfio-ccw devices are always mediated devices and always operate under
the constraints above.  Therefore we can consider all vfio-ccw devices
as balloon compatible.

The situation is far from straightforward with vfio-pci.  These
devices can be physical devices with physical IOMMU backing or
mediated devices where it is unknown whether a physical IOMMU is in
use or whether the vendor driver is well synchronized to the working
set of the guest driver.  The safest approach is therefore to assume
all vfio-pci devices are incompatible with ballooning, but allow user
opt-in should they have further insight into mediated devices.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2018-08-17 09:27:16 -06:00
Alex Williamson
c65ee43315 vfio: Inhibit ballooning based on group attachment to a container
We use a VFIOContainer to associate an AddressSpace to one or more
VFIOGroups.  The VFIOContainer represents the DMA context for that
AdressSpace for those VFIOGroups and is synchronized to changes in
that AddressSpace via a MemoryListener.  For IOMMU backed devices,
maintaining the DMA context for a VFIOGroup generally involves
pinning a host virtual address in order to create a stable host
physical address and then mapping a translation from the associated
guest physical address to that host physical address into the IOMMU.

While the above maintains the VFIOContainer synchronized to the QEMU
memory API of the VM, memory ballooning occurs outside of that API.
Inflating the memory balloon (ie. cooperatively capturing pages from
the guest for use by the host) simply uses MADV_DONTNEED to "zap"
pages from QEMU's host virtual address space.  The page pinning and
IOMMU mapping above remains in place, negating the host's ability to
reuse the page, but the host virtual to host physical mapping of the
page is invalidated outside of QEMU's memory API.

When the balloon is later deflated, attempting to cooperatively
return pages to the guest, the page is simply freed by the guest
balloon driver, allowing it to be used in the guest and incurring a
page fault when that occurs.  The page fault maps a new host physical
page backing the existing host virtual address, meanwhile the
VFIOContainer still maintains the translation to the original host
physical address.  At this point the guest vCPU and any assigned
devices will map different host physical addresses to the same guest
physical address.  Badness.

The IOMMU typically does not have page level granularity with which
it can track this mapping without also incurring inefficiencies in
using page size mappings throughout.  MMU notifiers in the host
kernel also provide indicators for invalidating the mapping on
balloon inflation, not for updating the mapping when the balloon is
deflated.  For these reasons we assume a default behavior that the
mapping of each VFIOGroup into the VFIOContainer is incompatible
with memory ballooning and increment the balloon inhibitor to match
the attached VFIOGroups.

Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2018-08-17 09:27:16 -06:00
Alex Williamson
f59489423a kvm: Use inhibit to prevent ballooning without synchronous mmu
Remove KVM specific tests in balloon_page(), instead marking
ballooning as inhibited without KVM_CAP_SYNC_MMU support.

Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2018-08-17 09:27:15 -06:00
Alex Williamson
01ccbec7bd balloon: Allow multiple inhibit users
A simple true/false internal state does not allow multiple users.  Fix
this within the existing interface by converting to a counter, so long
as the counter is elevated, ballooning is inhibited.

Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2018-08-17 09:27:15 -06:00
Laurent Vivier
3e23de1523 linux-user: fix 32bit g2h()/h2g()
sparc32plus has 64bit long type but only 32bit virtual address space.

For instance, "apt-get upgrade" failed because of a mmap()/msync()
sequence.

mmap() returned 0xff252000 but msync() used g2h(0xffffffffff252000)
to find the host address. The "(target_ulong)" in g2h() doesn't fix the
address because it is 64bit long.

This patch introduces an "abi_ptr" that is set to uint32_t
if the virtual address space is addressed using 32bit in the linux-user
case. It stays set to target_ulong with softmmu case.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180814171217.14680-1-laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[lv: added "%" in TARGET_ABI_FMT_ptr "%"PRIx64]
2018-08-17 13:56:33 +02:00
Laurent Vivier
b8dbfc9cc6 qemu-binfmt-conf.sh: add x86_64 target
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20180801102944.23457-1-laurent@vivier.eu>
2018-08-17 13:56:33 +02:00
Peter Maydell
0abaa41d93 x86 queue, 2018-08-16
Bug fix:
 * Some guests may crash when using "-cpu host" due to TOPOEXT,
   disable it by default
 
 Features:
 * PV_SEND_IPI feature bit
 * Icelake-{Server,Client} CPU models
 * New CPUID feature bits: PV_SEND_IPI, WBNOINVD, PCONFIG, ARCH_CAPABILITIES
 
 Documentation:
 * docs/qemu-cpu-models.texi
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABCAAGBQJbdiXVAAoJECgHk2+YTcWmcuUP/i1ekHKIm1Irfelhbd0CpGJj
 GTUoK/EAkNXxUq5qYpNL23sElxCyduoFlyrpHMxdRmaffrw7EBg/ye3eZNT9SMcE
 OL2iLohZhev4V9iO2lBx4/4awFxHJC8vx9q4OQXHXewNZxoFdi+6h+b7eDnSD1XO
 1saCSem5bZtu6Ra/aco21SVW7afWOPtYAW0Z6fXJ040K4wgKdxGo2NfBkRX1SUMD
 xqUG084FJht+MeIq95mcY9bSubg9fXKYUr6psE2mL+ycztbx+vnUMMS+Yj8XfuCC
 QIBzlpF0ZCTZlxRsmQqW/ZBb5qsSdJiCMGPibeLl3vKzByZ5NpZk4xUw69NcwQ07
 kAEhK3Ug4X+gjUtLH3QvRF7pIHOtJS5RdHpEfOBYZ/P+JfX7y2tCmqlAhPje6urf
 av2Go4PvdD8gS0KO4bpasE6guLz+bp734xcA9c/pVwWITOT8xBG9XGqj1cZ4/S+b
 uJWLdeeR6vspJBs3BjWxxCMcAS3tk8CzYamjJBYnPasXznnEnmwaS8X5QWCS0h1R
 Hx83z9WGr4oPry7Pg0keKEBFA2FvFtYH/xbSBUOpiaGvDICPY8w7BfOCtjBNxOsm
 wMtlx6fBsXv89ymWpYHCldvdMw7sF6GGYuQIBnF7BqXKgLZABcOKRXG/JfVdK5iU
 QxoROA+kpgws7LK3lRUV
 =uE8w
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/ehabkost/tags/x86-next-pull-request' into staging

x86 queue, 2018-08-16

Bug fix:
* Some guests may crash when using "-cpu host" due to TOPOEXT,
  disable it by default

Features:
* PV_SEND_IPI feature bit
* Icelake-{Server,Client} CPU models
* New CPUID feature bits: PV_SEND_IPI, WBNOINVD, PCONFIG, ARCH_CAPABILITIES

Documentation:
* docs/qemu-cpu-models.texi

# gpg: Signature made Fri 17 Aug 2018 02:33:09 BST
# gpg:                using RSA key 2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/x86-next-pull-request:
  i386: Disable TOPOEXT by default on "-cpu host"
  target-i386: adds PV_SEND_IPI CPUID feature bit
  i386: Add new CPU model Icelake-{Server,Client}
  i386: Add CPUID bit for WBNOINVD
  i386: Add CPUID bit for PCONFIG
  i386: Add CPUID bit and feature words for IA32_ARCH_CAPABILITIES MSR
  i386: Add new MSR indices for IA32_PRED_CMD and IA32_ARCH_CAPABILITIES
  docs: add guidance on configuring CPU models for x86

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-08-17 09:46:00 +01:00
Mark Cave-Ayland
907aac2f6a fw_cfg: ignore suffixes in the bootdevice list dependent on machine class
For the older machines (such as Mac and SPARC) the DT nodes representing
bootdevices for disk nodes are irregular for mainly historical reasons.

Since the majority of bootdevice nodes for these machines either do not have a
separate disk node or require different (custom) names then it is much easier
for processing to just disable all suffixes for a particular machine.

Introduce a new ignore_boot_device_suffixes MachineClass property to control
bootdevice suffix generation, defaulting to false in order to preserve
compatibility.

Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20180810124027.10698-1-mark.cave-ayland@ilande.co.uk>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-08-16 22:27:43 -03:00
Mark Cave-Ayland
be64d7776b sysbus: always allow explicit_ofw_unit_address() to override address generation
Some SysBusDevices either use sysbus_init_mmio() without
sysbus_mmio_map() or the first MMIO memory region doesn't represent the
bus address, causing a firmware device path with an invalid address to
be generated.

SysBusDeviceClass does provide a virtual explicit_ofw_unit_address()
method that can be used to override this process, but it was originally intended
only as as a fallback option meaning that any existing MMIO memory regions still
take priority whilst determining the firmware device address.

There is currently only one user of explicit_ofw_unit_address() and that
is the PCI expander bridge (PXB) device which has no MMIO/PIO resources
defined. This enables us to allow explicit_ofw_unit_address() to take
priority without affecting backwards compatibility, allowing the address
to be customised as required.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20180805112850.26063-2-mark.cave-ayland@ilande.co.uk>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-08-16 22:27:43 -03:00
Dou Liyang
3aeaac8fa2 machine: Fix coding style at machine_run_board_init()
Commit 7747abf114 ("hw/machine: Remove the Zero check of
nb_numa_nodes for numa_complete_configuration()") removed the
curly brackets.  Re-add them.

Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Message-Id: <20180710105129.23296-1-douly.fnst@cn.fujitsu.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
[ehabkost: rewrote commit message]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-08-16 22:27:43 -03:00
Peter Maydell
b8f7ff1e10 MIPS queue Aug 16, 2018
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJbdbIoAAoJENSXKoln91pl9KwIAJQ0CB4V/eRlvPOj828qLJyt
 FxCETpCKBD1mSRX80E2HdYdaj8KfhhKrd9R2Wrk2VsiTQhLA0+hYsLxuT8VfPjsX
 8WSN7egxzzA8Hzm1+wbwFCDNL13xjuhHWPk9YA1RYS6eQJot/Y27KYfvt/OPTrBO
 jGaTmvXOE9q3qXZczP2TwipYkehg1+Ss5ZJl7dUmHc3Iek5t/H+kumkhBPoJqwAQ
 wcwQuPm2KRGLuq9aB2IVbtfJA5Rme1GMFDWZicitJX2uK+Mx76fgi9IorrW6XAyM
 6LM8DjvrivxW+UgZ+3QdJKkQCbyIrXqDAp1MRd3CWMlB576WWKm6RUTZclSo9gI=
 =m1CJ
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/amarkovic/tags/mips-queue-aug-2018' into staging

MIPS queue Aug 16, 2018

# gpg: Signature made Thu 16 Aug 2018 18:19:36 BST
# gpg:                using RSA key D4972A8967F75A65
# gpg: Good signature from "Aleksandar Markovic <amarkovic@wavecomp.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: 8526 FBF1 5DA3 811F 4A01  DD75 D497 2A89 67F7 5A65

* remotes/amarkovic/tags/mips-queue-aug-2018:
  qemu-doc: Amend MIPS-related items
  linux-user: Add preprocessor availability control to some syscalls
  linux-user: Update MIPS syscall numbers up to kernel 4.18 headers
  elf: Add ELF flags for MIPS machine variants
  elf: Remove duplicate preprocessor constant definition
  target/mips: Check ELPA flag only in some cases of MFHC0 and MTHC0
  target/mips: Don't update BadVAddr register in Debug Mode
  target/mips: Implement CP0 Config1.WR bit functionality
  target/mips: Add CP0 BadInstrX register
  target/mips: Update some CP0 registers bit definitions
  target/mips: Fix two instances of shadow variables
  target/mips: Mark switch fallthroughs with interpretable comments
  target/mips: Avoid case statements formulated by ranges - part 2
  target/mips: Avoid case statements formulated by ranges - part 1
  MAINTAINERS: Update target/mips maintainer's email addresses

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-08-16 19:02:21 +01:00
Aleksandar Markovic
8639c5c954 qemu-doc: Amend MIPS-related items
Amend MIPS-related items in qemu-doc.texi

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
2018-08-16 19:18:45 +02:00
Aleksandar Rikalo
4f7f892420 linux-user: Add preprocessor availability control to some syscalls
Add ability to target platforms to individually include user-mode
support for system calls from "stat" group of system calls.

This change is related to new nanoMIPS platform in the sense that
it supports a different set of "stat" system calls than any other
target. nanoMIPS does not support structures stat and stat64 at
all. Also, support for certain number of other system calls is
dropped in nanoMIPS (those are most of the time obsoleted system
calls).

Without this patch, build for nanoMIPS would fail.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
2018-08-16 19:18:45 +02:00
Aleksandar Markovic
977324ac8c linux-user: Update MIPS syscall numbers up to kernel 4.18 headers
Synchronize content of linux-user/mips/syscall_nr.h and
linux-user/mips64/syscall_nr.h with Linux kernel 4.18 headers.
This adds 9 new syscall numbers, the last being NR_io_pgetevents.

Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
2018-08-16 19:18:45 +02:00
Aleksandar Markovic
c20eafa197 elf: Add ELF flags for MIPS machine variants
Add MIPS machine variants ELF flags so that the emulation behavior
can be adjusted if needed.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
2018-08-16 19:18:45 +02:00
Aleksandar Markovic
c19fd07ee5 elf: Remove duplicate preprocessor constant definition
Remove duplicate preprocessor constant definition for EF_MIPS_ARCH.

The duplicate was introduced in commit 45506bdd. It placed the
constant EF_MIPS_ARCH in a better place, however it did not remove
the original. This patch removes the original occurrence.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-08-16 19:18:45 +02:00
Yongbok Kim
59488dda1f target/mips: Check ELPA flag only in some cases of MFHC0 and MTHC0
MFHC0 and MTHC0 used to handle EntryLo0 and EntryLo1 registers only,
and placing ELPA flag checks before switch statement were technically
correct. However, after adding handling more registers, these checks
should be moved to act only in cases of handling EntryLo0 and
EntryLo1.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
2018-08-16 19:18:45 +02:00
Yongbok Kim
e807bcc151 target/mips: Don't update BadVAddr register in Debug Mode
BadVAddr should not be updated if (env->hflags & MIPS_HFLAG_DM) is
set.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-08-16 19:18:45 +02:00
Stefan Markovic
fa192d4974 target/mips: Implement CP0 Config1.WR bit functionality
Add testing Config1.WR bit into watch exception handling logic.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
2018-08-16 19:18:45 +02:00
Stefan Markovic
25beba9bf7 target/mips: Add CP0 BadInstrX register
Add CP0 BadInstrX register. This register will be used in nanoMIPS.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-08-16 19:18:45 +02:00
Aleksandar Markovic
0413d7a55a target/mips: Update some CP0 registers bit definitions
Update CP0 registers Config0, Config1, Config2, Config3,
Config4, and Config5 bit definitions.

Some of these bits will be utilized by upcoming nanoMIPS changes.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-08-16 19:18:45 +02:00
Aleksandar Markovic
e1555d7ddf target/mips: Fix two instances of shadow variables
Fix two instances of shadow variables. This cleans up entire file
translate.c from shadow variables.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
2018-08-16 19:18:45 +02:00
Aleksandar Markovic
146dd620db target/mips: Mark switch fallthroughs with interpretable comments
Mark switch fallthroughs with comments, in cases fallthroughs
are intentional.

The comments "/* fall through */" are interpreted by compilers and
other tools, and they will not issue warnings in such cases. For gcc,
the warning is turnend on by -Wimplicit-fallthrough. With this patch,
there will be no such warnings in target/mips directory. If such
warning appears in future, it should be checked if it is intentional,
and, if yes, marked with a comment similar to those from this patch.

The comment must be just before next "case", otherwise gcc won't
understand it.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
2018-08-16 19:18:45 +02:00
Aleksandar Rikalo
c38a1d5223 target/mips: Avoid case statements formulated by ranges - part 2
Remove "range style" case statements to make code analysis easier.
This patch handles cases when the values in the range in question
were not properly defined.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Stefan Markovic <amarkovic@wavecomp.com>
2018-08-16 19:18:45 +02:00
Aleksandar Markovic
c2e19f3c2b target/mips: Avoid case statements formulated by ranges - part 1
Remove "range style" case statements to make code analysis easier.

This is needed also for some upcoming nanoMIPS-related refactorings.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-08-16 19:18:45 +02:00
Aleksandar Markovic
4872fee23d MAINTAINERS: Update target/mips maintainer's email addresses
Update email addresses of Aleksandar Markovic and Paul Burton in the
MAINTAINERS file. Also, add corresponding items in the .mailmap file.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-08-16 19:18:45 +02:00
Eduardo Habkost
7210a02c58 i386: Disable TOPOEXT by default on "-cpu host"
Enabling TOPOEXT is always allowed, but it can't be enabled
blindly by "-cpu host" because it may make guests crash if the
rest of the cache topology information isn't provided or isn't
consistent.

This addresses the bug reported at:
https://bugzilla.redhat.com/show_bug.cgi?id=1613277

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20180809221852.15285-1-ehabkost@redhat.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Reviewed-by: Babu Moger <babu.moger@amd.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-08-16 13:43:01 -03:00
Wanpeng Li
7f710c32bb target-i386: adds PV_SEND_IPI CPUID feature bit
Adds PV_SEND_IPI CPUID feature bit.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1530526971-1812-1-git-send-email-wanpengli@tencent.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-08-16 13:43:01 -03:00
Robert Hoo
8a11c62da9 i386: Add new CPU model Icelake-{Server,Client}
New CPU models mostly inherit features from ancestor Skylake, while addin new
features: UMIP, New Instructions ( PCONIFIG (server only), WBNOINVD,
AVX512_VBMI2, GFNI, AVX512_VNNI, VPCLMULQDQ, VAES, AVX512_BITALG),
Intel PT and 5-level paging (Server only). As well as
IA32_PRED_CMD, SSBD support for speculative execution
side channel mitigations.

Note:
For 5-level paging, Guest physical address width can be configured, with
parameter "phys-bits". Unless explicitly specified, we still use its default
value, even for Icelake-Server cpu model.
At present, hold on expose IA32_ARCH_CAPABILITIES to guest, as 1) This MSR
actually presents more than 1 'feature', maintainers are considering expanding current
features presentation of only CPUIDs to MSR bits; 2) a reasonable default value
for MSR_IA32_ARCH_CAPABILITIES needs to settled first. These 2 are actully
beyond Icelake CPU model itself but fundamental. So split these work apart
and do it later.
https://lists.gnu.org/archive/html/qemu-devel/2018-07/msg00774.html
https://lists.gnu.org/archive/html/qemu-devel/2018-07/msg00796.html

Signed-off-by: Robert Hoo <robert.hu@linux.intel.com>
Message-Id: <1530781798-183214-6-git-send-email-robert.hu@linux.intel.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-08-16 13:43:01 -03:00
Robert Hoo
59a80a19ca i386: Add CPUID bit for WBNOINVD
WBNOINVD: Write back and do not invalidate cache, enumerated by
CPUID.(EAX=80000008H, ECX=0):EBX[bit 9].

Signed-off-by: Robert Hoo <robert.hu@linux.intel.com>
Message-Id: <1530781798-183214-5-git-send-email-robert.hu@linux.intel.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-08-16 13:43:01 -03:00
Robert Hoo
5131dc433d i386: Add CPUID bit for PCONFIG
PCONFIG: Platform configuration, enumerated by CPUID.(EAX=07H, ECX=0):
EDX[bit18].

Signed-off-by: Robert Hoo <robert.hu@linux.intel.com>
Message-Id: <1530781798-183214-4-git-send-email-robert.hu@linux.intel.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-08-16 13:43:01 -03:00
Robert Hoo
3fc7c73139 i386: Add CPUID bit and feature words for IA32_ARCH_CAPABILITIES MSR
Support of IA32_PRED_CMD MSR already be enumerated by same CPUID bit as
SPEC_CTRL.

At present, mark CPUID_7_0_EDX_ARCH_CAPABILITIES unmigratable, per Paolo's
comment.

Signed-off-by: Robert Hoo <robert.hu@linux.intel.com>
Message-Id: <1530781798-183214-3-git-send-email-robert.hu@linux.intel.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-08-16 13:43:01 -03:00
Robert Hoo
8c80c99fcc i386: Add new MSR indices for IA32_PRED_CMD and IA32_ARCH_CAPABILITIES
IA32_PRED_CMD MSR gives software a way to issue commands that affect the state
of indirect branch predictors. Enumerated by CPUID.(EAX=7H,ECX=0):EDX[26].
IA32_ARCH_CAPABILITIES MSR enumerates architectural features of RDCL_NO and
IBRS_ALL. Enumerated by CPUID.(EAX=07H, ECX=0):EDX[29].

https://software.intel.com/sites/default/files/managed/c5/63/336996-Speculative-Execution-Side-Channel-Mitigations.pdf

Signed-off-by: Robert Hoo <robert.hu@linux.intel.com>
Message-Id: <1530781798-183214-2-git-send-email-robert.hu@linux.intel.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-08-16 13:43:01 -03:00
Daniel P. Berrangé
2544e9e4aa docs: add guidance on configuring CPU models for x86
With the recent set of CPU hardware vulnerabilities on x86, it is
increasingly difficult to understand which CPU configurations are
good to use and what flaws they might be vulnerable to.

This doc attempts to help management applications and administrators in
picking sensible CPU configuration on x86 hosts. It outlines which of
the named CPU models are good choices, and describes which extra CPU
flags should be enabled to allow the guest to mitigate hardware flaws.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20180627160103.13634-1-berrange@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-08-16 13:43:01 -03:00
Peter Maydell
bb16c0412a target-arm queue:
* Fixes for various bugs in SVE instructions
  * Add model of Freescale i.MX6 UltraLite 14x14 EVK Board
  * hw/arm: make bitbanded IO optional on ARMv7-M
  * Add model of Cortex-M0 CPU
  * Add support for loading Intel HEX files to the generic loader
  * imx_spi: Unset XCH when TX FIFO becomes empty
  * aspeed_sdmc: fix various bugs
  * Fix bugs in Arm FP16 instruction support
  * Fix aa64 FCADD and FCMLA decode
  * softfloat: Fix missing inexact for floating-point add
  * hw/arm/mps2-tz: Replace init_sysbus_child() with sysbus_init_child_obj()
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJbdX01AAoJEDwlJe0UNgzeEpIP/Rd7CyPtQX/c9FIFC53BknQ+
 xM4W2e88wS9pCNDwc0jRG0x67YcXIRjixbJuZcfobmcr9isqTJjFTQyWuOf5/XxC
 b2qHa5vRlW0ro8Ug62Vnk0lV7sxsLcAeWfzWbOrSKjkiM3Iq1X4msq7wkTylgpzF
 Wp8S1IpPpOvmxQxScC0pZPFz0fOKDOHf/HKDJ1sUKLAi58BMt5A6RB2u5UZD40Oy
 etmJyAZURxAsicn9MlrPW2lyh+SVREbBz7YXq04ZMr48pps2E8SU6no4RXtlyhe3
 K3VF4Ltq8sVXI8Pt8/JnPnBwAAQ9Z85/EVF8qbKFUyF8XR9iFfOXNZqZAwER3R+V
 Wcop9Xww3uSekXr4eOzbdFMu13JSnJH0m52fLQRBmdllpjE31sc8QiFWMGFsfGnm
 CkGwdKeDykSqmKbyKwC67iqsADPehxK2s3NyBn/xF5p7kOYBYX5GZZW7HpK2mjsG
 M7BrWyStaVeCLONO4kL/4hYT2I2vS84m1cQaYs0DJ0Y1NeCMLl0DICapM1VSoaI2
 fcvi99Fwr5nuOtq5i6vfKM3ipPFoJs/Ckti6nLUigGw7UoLw84CGPrtj0x908g4A
 bUN/9rvtfcsiCTwPNLLN/hPJgVjJf6CRVoShBqbsbuUcANcuMAqh2dgmgeeG4NSm
 8K7BNB530K9kGXtpYscT
 =Hzcf
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20180816' into staging

target-arm queue:
 * Fixes for various bugs in SVE instructions
 * Add model of Freescale i.MX6 UltraLite 14x14 EVK Board
 * hw/arm: make bitbanded IO optional on ARMv7-M
 * Add model of Cortex-M0 CPU
 * Add support for loading Intel HEX files to the generic loader
 * imx_spi: Unset XCH when TX FIFO becomes empty
 * aspeed_sdmc: fix various bugs
 * Fix bugs in Arm FP16 instruction support
 * Fix aa64 FCADD and FCMLA decode
 * softfloat: Fix missing inexact for floating-point add
 * hw/arm/mps2-tz: Replace init_sysbus_child() with sysbus_init_child_obj()

# gpg: Signature made Thu 16 Aug 2018 14:33:41 BST
# gpg:                using RSA key 3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20180816: (30 commits)
  hw/arm/mps2-tz: Replace init_sysbus_child() with sysbus_init_child_obj()
  softfloat: Fix missing inexact for floating-point add
  target/arm: Fix aa64 FCADD and FCMLA decode
  target/arm: Use FZ not FZ16 for SVE FCVT single-half and double-half
  target/arm: Use fp_status_fp16 for do_fmpa_zpzzz_h
  target/arm: Ignore float_flag_input_denormal from fp_status_f16
  target/arm: Adjust FPCR_MASK for FZ16
  aspeed: add a max_ram_size property to the memory controller
  aspeed_sdmc: Handle ECC training
  aspeed_sdmc: Init status always idle
  aspeed_sdmc: Set 'cache initial sequence' always true
  aspeed_sdmc: Fix saved values
  aspeed_sdmc: Extend number of valid registers
  imx_spi: Unset XCH when TX FIFO becomes empty
  Add QTest testcase for the Intel Hexadecimal
  loader: Implement .hex file loader
  loader: add rom transaction API
  loader: extract rom_free() function
  target/arm: add "cortex-m0" CPU model
  hw/arm: make bitbanded IO optional on ARMv7-M
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-08-16 14:35:50 +01:00
Thomas Huth
fcf13ca556 hw/arm/mps2-tz: Replace init_sysbus_child() with sysbus_init_child_obj()
Now that we've got the common sysbus_init_child_obj() function, we do
not need the local init_sysbus_child() anymore.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1534420566-15799-1-git-send-email-thuth@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-08-16 14:29:58 +01:00
Richard Henderson
64d450a0ea softfloat: Fix missing inexact for floating-point add
For 0x1.0000000000003p+0 + 0x1.ffffffep+14 = 0x1.0001fffp+15
we dropped the sticky bit and so failed to raise inexact.

Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Message-id: 20180810193129.1556-7-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-08-16 14:29:58 +01:00
Richard Henderson
b8a4a96db3 target/arm: Fix aa64 FCADD and FCMLA decode
These insns require u=1; failed to include that in the switch
cases.  This probably happened during one of the rebases just
before final commit.

Fixes: d17b7cdcf4
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Message-id: 20180810193129.1556-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-08-16 14:29:58 +01:00