Commit Graph

104545 Commits

Author SHA1 Message Date
Frederic Barrat
34b4313070 pnv/xive2: Quiet down some error messages
When dumping the END and NVP tables ("info pic" from the HMP) on the
P10 model, we're likely to be flooded with error messages such as:

  XIVE[0] - VST: invalid NVPT entry f33800 !?

The error is printed when finding an empty VSD in an indirect
table (thus END and NVP tables with skiboot), which is going to happen
when dumping the xive state. So let's tune down those messages. They
can be re-enabled easily with a macro if needed.

Those errors were already hidden on xive/P9, for the same reason.

Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20230531150537.369350-1-fbarrat@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2023-06-10 10:19:24 -03:00
Nicholas Piggin
6c242e79b8 target/ppc: Fix nested-hv HEAI delivery
ppc hypervisors turn HEAI interrupts into program interrupts injected
into the guest that executed the illegal instruction, if the hypervisor
doesn't handle it some other way.

The nested-hv implementation failed to account for this HEAI->program
conversion. The virtual hypervisor wants to see the HEAI when running
a nested guest, so that interrupt type can be returned to its KVM
caller.

Fixes: 7cebc5db2e ("target/ppc: Introduce a vhyp framework for nested HV support")
Cc: balaton@eik.bme.hu
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20230530132127.385001-1-npiggin@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2023-06-10 10:19:24 -03:00
Frederic Barrat
6f2cbd133d pnv/xive2: Handle TIMA access through all ports
The Thread Interrupt Management Area (TIMA) can be accessed through 4
ports, targeted by the address. The base address of a TIMA
is using port 0 and the other ports are 0x80 apart. Using one port or
another can be useful to balance the load on the snoop buses. With
skiboot and linux, we currently use port 0, but as it tends to be
busy, another hypervisor is using port 1 for TIMA access.

The port address bits fall in between the special op indication
bits (the 2 MSBs) and the register offset bits (the 6 LSBs). They are
"don't care" for the hardware when processing a TIMA operation. This
patch filters out those port address bits so that a TIMA operation can
be triggered using any port.

It is also true for indirect access (through the IC BAR) and it's
actually nothing new, it was already the case on P9. Which helps here,
as the TIMA handling code is common between P9 (xive) and P10 (xive2).

Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20230601121331.487207-6-fbarrat@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2023-06-10 10:19:24 -03:00
Frederic Barrat
afca92071f pnv/xive2: Introduce macros to manipulate TIMA addresses
TIMA addresses are somewhat special and are split in several bit
fields with different meanings. This patch describes it and introduce
macros to more easily access the various fields.

Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20230601121331.487207-5-fbarrat@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2023-06-10 10:19:24 -03:00
Frederic Barrat
f0fc1c29a8 pnv/xive2: Allow writes to the Physical Thread Enable registers
Fix what was probably a silly mistake and allow to write the Physical
Thread enable registers 0 and 1. Skiboot prefers to use the ENx_SET
variant so it went unnoticed, but there's no reason to discard a write
to the full register, it is Read-Write.

Fixes: da71b7e3ed ("ppc/pnv: Add a XIVE2 controller to the POWER10 chip")
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20230601121331.487207-4-fbarrat@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2023-06-10 10:19:24 -03:00
Frederic Barrat
32af01f83a pnv/xive2: Add definition for the ESB cache configuration register
Add basic read/write support for the ESB cache configuration register
on P10. We don't model the ESB cache in qemu so reading/writing the
register won't do anything, but it avoids logging a guest error when
skiboot configures it:

qemu-system-ppc64 -machine powernv10 ... -d guest_errors
      ...
XIVE[0] - VC: invalid read @240
XIVE[0] - VC: invalid write @240

Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20230601121331.487207-3-fbarrat@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2023-06-10 10:19:24 -03:00
Frederic Barrat
cce84fc919 pnv/xive2: Add definition for TCTXT Config register
Add basic read/write support for the TCTXT Config register on P10. qemu
doesn't do anything with it yet, but it avoids logging a guest error
when skiboot configures the fused-core state:

qemu-system-ppc64 -machine powernv10 ... -d guest_errors
  ...
[    0.131670000,5] XIVE: [ IC 00  ] Initializing XIVE block ID 0...
XIVE[0] - TCTXT: invalid read @140
XIVE[0] - TCTXT: invalid write @140

Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20230601121331.487207-2-fbarrat@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2023-06-10 10:19:24 -03:00
Richard Henderson
3673ad3896 tcg/tci: Fix MemOpIdx operand index for 3-operand memops
Cut and paste error from the 4-operand memops.

Fixes: ab64da7977 ("tcg/tci: Adjust passing of MemOpIdx")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230608162925.677598-1-richard.henderson@linaro.org>
2023-06-09 08:30:56 -07:00
Richard Henderson
1026223c47 maintainers: update maintainers list for vfio-user & multi-process QEMU
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
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Merge tag 'pull-maintainers-20230608' of https://gitlab.com/jraman/qemu into staging

maintainers: update maintainers list for vfio-user & multi-process QEMU

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>

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# gpg: Signature made Thu 08 Jun 2023 11:17:59 AM PDT
# gpg:                using RSA key 8D344F64CE3F3DC7
# gpg: Good signature from "Jagannathan Raman <jag.raman@oracle.com>" [unknown]
# 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: B36D 9579 7F7B 3D4F 87A6  D8CF 8D34 4F64 CE3F 3DC7

* tag 'pull-maintainers-20230608' of https://gitlab.com/jraman/qemu:
  maintainers: update maintainers list for vfio-user & multi-process QEMU

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-09 08:30:00 -07:00
Jagannathan Raman
c45309f7a4
maintainers: update maintainers list for vfio-user & multi-process QEMU
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-06-08 14:16:08 -04:00
Richard Henderson
5f9dd6a8ce * Fix for CVE-2023-2861.
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Merge tag 'pull-9p-20230608' of https://github.com/cschoenebeck/qemu into staging

* Fix for CVE-2023-2861.

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# gpg: Signature made Thu 08 Jun 2023 08:09:23 AM PDT
# gpg:                using RSA key 96D8D110CF7AF8084F88590134C2B58765A47395
# gpg:                issuer "qemu_oss@crudebyte.com"
# gpg: Good signature from "Christian Schoenebeck <qemu_oss@crudebyte.com>" [unknown]
# 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: ECAB 1A45 4014 1413 BA38  4926 30DB 47C3 A012 D5F4
#      Subkey fingerprint: 96D8 D110 CF7A F808 4F88  5901 34C2 B587 65A4 7395

* tag 'pull-9p-20230608' of https://github.com/cschoenebeck/qemu:
  9pfs: prevent opening special files (CVE-2023-2861)

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-08 08:47:35 -07:00
Christian Schoenebeck
f6b0de53fb 9pfs: prevent opening special files (CVE-2023-2861)
The 9p protocol does not specifically define how server shall behave when
client tries to open a special file, however from security POV it does
make sense for 9p server to prohibit opening any special file on host side
in general. A sane Linux 9p client for instance would never attempt to
open a special file on host side, it would always handle those exclusively
on its guest side. A malicious client however could potentially escape
from the exported 9p tree by creating and opening a device file on host
side.

With QEMU this could only be exploited in the following unsafe setups:

  - Running QEMU binary as root AND 9p 'local' fs driver AND 'passthrough'
    security model.

or

  - Using 9p 'proxy' fs driver (which is running its helper daemon as
    root).

These setups were already discouraged for safety reasons before,
however for obvious reasons we are now tightening behaviour on this.

Fixes: CVE-2023-2861
Reported-by: Yanwu Shen <ywsPlz@gmail.com>
Reported-by: Jietao Xiao <shawtao1125@gmail.com>
Reported-by: Jinku Li <jkli@xidian.edu.cn>
Reported-by: Wenbo Shen <shenwenbo@zju.edu.cn>
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Message-Id: <E1q6w7r-0000Q0-NM@lizzy.crudebyte.com>
2023-06-08 17:04:58 +02:00
Richard Henderson
45ae97993a - Refactor PCXI/ICR field handling in newer ISA versions
- Add simple tests written in C
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Merge tag 'pull-tricore-20230607' of https://github.com/bkoppelmann/qemu into staging

- Refactor PCXI/ICR field handling in newer ISA versions
- Add simple tests written in C

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# gpg: Signature made Wed 07 Jun 2023 09:22:01 AM PDT
# gpg:                using RSA key 6E636A7E83F2DD0CFA6E6E370AD2C6396B69CA14
# gpg:                issuer "kbastian@mail.uni-paderborn.de"
# gpg: Good signature from "Bastian Koppelmann <kbastian@mail.uni-paderborn.de>" [unknown]
# 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: 6E63 6A7E 83F2 DD0C FA6E  6E37 0AD2 C639 6B69 CA14

* tag 'pull-tricore-20230607' of https://github.com/bkoppelmann/qemu:
  tests/tcg/tricore: Add recursion test for CSAs
  target/tricore: Fix wrong PSW for call insns
  target/tricore: Refactor PCXI/ICR register fields
  tests/tcg/tricore: Add first C program
  tests/tcg/tricore: Uses label for memory addresses
  tests/tcg/tricore: Move asm tests into 'asm' directory

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-07 11:45:22 -07:00
Richard Henderson
62cfa77fdf Build system snafus.
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

Build system snafus.

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# gpg: Signature made Wed 07 Jun 2023 06:21:42 AM PDT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [unknown]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [unknown]
# 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: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
  tests: fp: remove unused submodules
  configure: check for $download value properly
  meson: fix "static build" entry in summary

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-07 11:43:03 -07:00
Richard Henderson
4f65e89f8c Xen queue
- fix for xen-block segv
 - Resolve TYPE_PIIX3_XEN_DEVICE
 - Xen emulation build/Coverity fixes
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Merge tag 'pull-xen-20230607' of https://xenbits.xen.org/git-http/people/aperard/qemu-dm into staging

Xen queue

- fix for xen-block segv
- Resolve TYPE_PIIX3_XEN_DEVICE
- Xen emulation build/Coverity fixes

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# gpg: Signature made Wed 07 Jun 2023 07:16:45 AM PDT
# gpg:                using RSA key F80C006308E22CFD8A92E7980CF5572FD7FB55AF
# gpg: Good signature from "Anthony PERARD <anthony.perard@gmail.com>" [unknown]
# gpg:                 aka "Anthony PERARD <anthony.perard@citrix.com>" [unknown]
# 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: 5379 2F71 024C 600F 778A  7161 D8D5 7199 DF83 42C8
#      Subkey fingerprint: F80C 0063 08E2 2CFD 8A92  E798 0CF5 572F D7FB 55AF

* tag 'pull-xen-20230607' of https://xenbits.xen.org/git-http/people/aperard/qemu-dm:
  xen-block: fix segv on unrealize
  hw/isa/piix3: Resolve redundant TYPE_PIIX3_XEN_DEVICE
  hw/isa/piix3: Resolve redundant k->config_write assignments
  hw/isa/piix3: Avoid Xen-specific variant of piix3_write_config()
  hw/isa/piix3: Wire up Xen PCI IRQ handling outside of PIIX3
  hw/isa/piix3: Reuse piix3_realize() in piix3_xen_realize()
  hw/pci/pci.c: Don't leak PCIBus::irq_count[] in pci_bus_irqs()
  include/hw/xen/xen: Rename xen_piix3_set_irq() to xen_intx_set_irq()
  hw/xen: Fix broken check for invalid state in xs_be_open()
  xen: Drop support for Xen versions below 4.7.1
  hw/xen: Fix memory leak in libxenstore_open() for Xen
  hw/xen: Simplify emulated Xen platform init

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-07 10:06:11 -07:00
Richard Henderson
e3bd51914f vfio-user: Fix the documentation for vfio-user and multi-process QEMU
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
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Merge tag 'pull-vfio-user-20230607' of https://gitlab.com/jraman/qemu into staging

vfio-user: Fix the documentation for vfio-user and multi-process QEMU

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>

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# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 07 Jun 2023 07:28:13 AM PDT
# gpg:                using RSA key 8D344F64CE3F3DC7
# gpg: Good signature from "Jagannathan Raman <jag.raman@oracle.com>" [unknown]
# 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: B36D 9579 7F7B 3D4F 87A6  D8CF 8D34 4F64 CE3F 3DC7

* tag 'pull-vfio-user-20230607' of https://gitlab.com/jraman/qemu:
  docs: fix multi-process QEMU documentation
  vfio-user: update comments

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-07 10:05:34 -07:00
Bastian Koppelmann
e926c94171 tests/tcg/tricore: Add recursion test for CSAs
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20230526061946.54514-7-kbastian@mail.uni-paderborn.de>
2023-06-07 18:20:51 +02:00
Bastian Koppelmann
12b95dc432 target/tricore: Fix wrong PSW for call insns
we were copying PSW into a local variable, updated PSW.CDE in the local
and never wrote it back. So when we called save_context_upper() we were
using the non-local version of PSW which did not contain the updated
PSW.CDE.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20230526061946.54514-6-kbastian@mail.uni-paderborn.de>
2023-06-07 18:20:48 +02:00
Bastian Koppelmann
343cdf2c9a target/tricore: Refactor PCXI/ICR register fields
starting from ISA version 1.6.1 (previously known as 1.6P/E), some
bitfields in PCXI and ICR have changed. We also refactor these
registers using the register fields API.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1453
Message-Id: <20230526061946.54514-5-kbastian@mail.uni-paderborn.de>
2023-06-07 18:20:45 +02:00
Bastian Koppelmann
0e45f7beca tests/tcg/tricore: Add first C program
this allows us to exercise the startup code used by GCC to call main().

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20230526061946.54514-4-kbastian@mail.uni-paderborn.de>
2023-06-07 18:20:42 +02:00
Bastian Koppelmann
2b8e2992c3 tests/tcg/tricore: Uses label for memory addresses
the linker might rearrange sections, so lets reference memory by label
name instead of addr + off.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20230526061946.54514-3-kbastian@mail.uni-paderborn.de>
2023-06-07 18:20:40 +02:00
Bastian Koppelmann
8b50d564be tests/tcg/tricore: Move asm tests into 'asm' directory
this seperates these tests from the upcoming tests written in C.
Also rename the compiled test to 'test_<foo>.asm.tst'.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20230526061946.54514-2-kbastian@mail.uni-paderborn.de>
2023-06-07 18:20:25 +02:00
Richard Henderson
c102e29772 Fix TCI regressions vs Int128
Fix Arm build vs --disable-tcg
 Fix iotest 194.
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Merge tag 'pull-ci-20230607' of https://gitlab.com/rth7680/qemu into staging

Fix TCI regressions vs Int128
Fix Arm build vs --disable-tcg
Fix iotest 194.

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# gpg: Signature made Wed 07 Jun 2023 08:39:22 AM PDT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
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# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]

* tag 'pull-ci-20230607' of https://gitlab.com/rth7680/qemu:
  iotests: fix 194: filter out racy postcopy-active event
  gitlab: Add cross-arm64-kvm-only
  target/arm: Only include tcg/oversized-guest.h if CONFIG_TCG
  tcg/tci: Adjust call-clobbered regs for int128_t
  tcg/tci: Adjust passing of MemOpIdx

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-07 08:41:27 -07:00
Vladimir Sementsov-Ogievskiy
dcc28ab603 iotests: fix 194: filter out racy postcopy-active event
The event is racy: it will not appear in the output if bitmap is
migrated during downtime period of migration and postcopy phase is not
started.

Fixes: ae00aa2398 "iotests: 194: test also migration of dirty bitmap"
Reported-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-Id: <20230607143606.1557395-1-vsementsov@yandex-team.ru>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-07 08:36:55 -07:00
Richard Henderson
c81e2d5477 gitlab: Add cross-arm64-kvm-only
We are not currently running a --disable-tcg test for arm64,
like we are for mips, ppc and s390x.  We have a job for the
native aarch64 runner, but it is not run by default and it
is not helpful for normal developer testing without access
to qemu's private runner.

Use --without-default-features to eliminate most tests.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-07 08:35:24 -07:00
Richard Henderson
007cd176e5 target/arm: Only include tcg/oversized-guest.h if CONFIG_TCG
Fixes the build for --disable-tcg.

This header is only needed for cross-hosting.  Without CONFIG_TCG,
we know this is an AArch64 host, CONFIG_ATOMIC64 will be set, and
the TCG_OVERSIZED_GUEST block will never be compiled.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-07 08:35:13 -07:00
Richard Henderson
0cabaef3ed tcg/tci: Adjust call-clobbered regs for int128_t
We require either 2 or 4 registers to hold int128_t.
Failure to do so results in a register allocation assert.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-07 08:33:52 -07:00
Richard Henderson
ab64da7977 tcg/tci: Adjust passing of MemOpIdx
Since adding MO_ATOM_MASK, the maximum MemOpIdx requires 15 bits,
which overflows the 12 bit field allocated for TCI memory ops.
Expand the field to 16 bits for 2-operand memory ops, and place
the value in TCG_REG_TMP for 3-operand memory ops (same as we
already do for 4-operand memory ops).

Cures a debug assert for aarch64, with FEAT_LSE2 enabled.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-07 08:33:45 -07:00
Jagannathan Raman
7771e8b863
docs: fix multi-process QEMU documentation
Fix a typo in the system documentation for multi-process QEMU.

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-06-07 10:21:53 -04:00
Jagannathan Raman
c145475804
vfio-user: update comments
Clarify the behavior of TYPE_VFU_OBJECT when TYPE_REMOTE_MACHINE enables
the auto-shutdown property. Also, add notes to VFU_OBJECT_ERROR.

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-06-07 10:21:16 -04:00
Anthony PERARD
9000666052 xen-block: fix segv on unrealize
Backtrace:
  qemu_lockcnt_lock (lockcnt=0xb4) at ../util/lockcnt.c:238
  aio_set_fd_handler (ctx=0x0, fd=51, is_external=true, io_read=0x0, io_write=0x0, io_poll=0x0, io_poll_ready=0x0, opaque=0x0) at ../util/aio-posix.c:119
  xen_device_unbind_event_channel (xendev=0x55c6da5b5000, channel=0x55c6da6c4c80, errp=0x7fff641ac608) at ../hw/xen/xen-bus.c:926
  xen_block_dataplane_stop (dataplane=0x55c6da6ddbe0) at ../hw/block/dataplane/xen-block.c:719
  xen_block_disconnect (xendev=0x55c6da5b5000, errp=0x0) at ../hw/block/xen-block.c:48
  xen_block_unrealize (xendev=0x55c6da5b5000) at ../hw/block/xen-block.c:154
  xen_device_unrealize (dev=0x55c6da5b5000) at ../hw/xen/xen-bus.c:956
  xen_device_exit (n=0x55c6da5b50d0, data=0x0) at ../hw/xen/xen-bus.c:985
  notifier_list_notify (list=0x55c6d91f9820 <exit_notifiers>, data=0x0) at ../util/notify.c:39
  qemu_run_exit_notifiers () at ../softmmu/runstate.c:760

Fixes: f6eac904f6 ("xen-block: implement BlockDevOps->drained_begin()")
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230606131605.55596-1-anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2023-06-07 15:07:10 +01:00
Bernhard Beschow
f8790f81eb hw/isa/piix3: Resolve redundant TYPE_PIIX3_XEN_DEVICE
During the last patches, TYPE_PIIX3_XEN_DEVICE turned into a clone of
TYPE_PIIX3_DEVICE. Remove this redundancy.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Tested-by: Chuck Zmudzinski <brchuckz@aol.com>
Message-Id: <20230312120221.99183-7-shentey@gmail.com>
Message-Id: <20230403074124.3925-8-shentey@gmail.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2023-06-07 15:07:10 +01:00
Bernhard Beschow
0f3e02a2f5 hw/isa/piix3: Resolve redundant k->config_write assignments
The previous patch unified handling of piix3_write_config() accross the
PIIX3 device models which allows for assigning k->config_write once in the
base class.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Tested-by: Chuck Zmudzinski <brchuckz@aol.com>
Message-Id: <20230312120221.99183-6-shentey@gmail.com>
Message-Id: <20230403074124.3925-7-shentey@gmail.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2023-06-07 15:07:10 +01:00
Bernhard Beschow
89965db43c hw/isa/piix3: Avoid Xen-specific variant of piix3_write_config()
Subscribe to pci_bus_fire_intx_routing_notifier() instead which allows for
having a common piix3_write_config() for the PIIX3 device models.

While at it, move the subscription into machine code to facilitate resolving
TYPE_PIIX3_XEN_DEVICE.

In a possible future followup, pci_bus_fire_intx_routing_notifier() could
be adjusted in such a way that subscribing to it doesn't require
knowledge of the device firing it.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Tested-by: Chuck Zmudzinski <brchuckz@aol.com>
Message-Id: <20230312120221.99183-5-shentey@gmail.com>
Message-Id: <20230403074124.3925-6-shentey@gmail.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2023-06-07 15:07:10 +01:00
Bernhard Beschow
60a9eb57f3 hw/isa/piix3: Wire up Xen PCI IRQ handling outside of PIIX3
xen_intx_set_irq() doesn't depend on PIIX3State. In order to resolve
TYPE_PIIX3_XEN_DEVICE and in order to make Xen agnostic about the
precise south bridge being used, set up Xen's PCI IRQ handling of PIIX3
in the board.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Tested-by: Chuck Zmudzinski <brchuckz@aol.com>
Message-Id: <20230312120221.99183-4-shentey@gmail.com>
Message-Id: <20230403074124.3925-5-shentey@gmail.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2023-06-07 15:07:10 +01:00
Bernhard Beschow
a58a31a6a1 hw/isa/piix3: Reuse piix3_realize() in piix3_xen_realize()
This is a preparational patch for the next one to make the following
more obvious:

First, pci_bus_irqs() is now called twice in case of Xen where the
second call overrides the pci_set_irq_fn with the Xen variant.

Second, pci_bus_set_route_irq_fn() is now also called in Xen mode.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Tested-by: Chuck Zmudzinski <brchuckz@aol.com>
Message-Id: <20230312120221.99183-3-shentey@gmail.com>
Message-Id: <20230403074124.3925-4-shentey@gmail.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2023-06-07 15:07:10 +01:00
Bernhard Beschow
c0b59416c0 hw/pci/pci.c: Don't leak PCIBus::irq_count[] in pci_bus_irqs()
When calling pci_bus_irqs() multiple times on the same object without calling
pci_bus_irqs_cleanup() in between PCIBus::irq_count[] is currently leaked.
Let's fix this because Xen will do just that in a few commits, and because
calling pci_bus_irqs_cleanup() in between seems fragile and cumbersome.

Note that pci_bus_irqs_cleanup() now has to NULL irq_count such that
pci_bus_irqs() doesn't do a double free.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Chuck Zmudzinski <brchuckz@aol.com>
Message-Id: <20230403074124.3925-3-shentey@gmail.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2023-06-07 15:07:10 +01:00
Bernhard Beschow
27047bd266 include/hw/xen/xen: Rename xen_piix3_set_irq() to xen_intx_set_irq()
xen_piix3_set_irq() isn't PIIX specific: PIIX is a single PCI device
while xen_piix3_set_irq() maps multiple PCI devices to their respective
IRQs, which is board-specific. Rename xen_piix3_set_irq() to communicate
this.

Also rename XEN_PIIX_NUM_PIRQS to XEN_IOAPIC_NUM_PIRQS since the Xen's
IOAPIC rather than PIIX has this many interrupt routes.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Tested-by: Chuck Zmudzinski <brchuckz@aol.com>
Message-Id: <20230312120221.99183-2-shentey@gmail.com>
Message-Id: <20230403074124.3925-2-shentey@gmail.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2023-06-07 15:07:10 +01:00
David Woodhouse
c9bdfe8d58 hw/xen: Fix broken check for invalid state in xs_be_open()
Coverity points out that if (!s && !s->impl) isn't really what we intended
to do here. CID 1508131.

Fixes: 0324751272 ("hw/xen: Add emulated implementation of XenStore operations")
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20230412185102.441523-6-dwmw2@infradead.org>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2023-06-07 15:07:10 +01:00
David Woodhouse
2f20b1732d xen: Drop support for Xen versions below 4.7.1
In restructuring to allow for internal emulation of Xen functionality,
I broke compatibility for Xen 4.6 and earlier. Fix this by explicitly
removing support for anything older than 4.7.1, which is also ancient
but it does still build, and the compatibility support for it is fairly
unintrusive.

Fixes: 15e283c5b6 ("hw/xen: Add foreignmem operations to allow redirection to internal emulation")
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
Message-Id: <20230412185102.441523-4-dwmw2@infradead.org>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2023-06-07 15:07:10 +01:00
David Woodhouse
8442232eba hw/xen: Fix memory leak in libxenstore_open() for Xen
There was a superfluous allocation of the XS handle, leading to it
being leaked on both the error path and the success path (where it gets
allocated again).

Spotted by Coverity (CID 1508098).

Fixes: ba2a92db1f ("hw/xen: Add xenstore operations to allow redirection to internal emulation")
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paul Durrant <paul@xen.org>
Message-Id: <20230412185102.441523-3-dwmw2@infradead.org>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2023-06-07 15:07:10 +01:00
David Woodhouse
eeedfe6c63 hw/xen: Simplify emulated Xen platform init
I initially put the basic platform init (overlay pages, grant tables,
event channels) into mc->kvm_type because that was the earliest place
that could sensibly test for xen_mode==XEN_EMULATE.

The intent was to do this early enough that we could then initialise the
XenBus and other parts which would have depended on them, from a generic
location for both Xen and KVM/Xen in the PC-specific code, as seen in
https://lore.kernel.org/qemu-devel/20230116221919.1124201-16-dwmw2@infradead.org/

However, then the Xen on Arm patches came along, and *they* wanted to
do the XenBus init from a 'generic' Xen-specific location instead:
https://lore.kernel.org/qemu-devel/20230210222729.957168-4-sstabellini@kernel.org/

Since there's no generic location that covers all three, I conceded to
do it for XEN_EMULATE mode in pc_basic_devices_init().

And now there's absolutely no point in having some of the platform init
done from pc_machine_kvm_type(); we can move it all up to live in a
single place in pc_basic_devices_init(). This has the added benefit that
we can drop the separate xen_evtchn_connect_gsis() function completely,
and pass just the system GSIs in directly to xen_evtchn_create().

While I'm at it, it does no harm to explicitly pass in the *number* of
said GSIs, because it does make me twitch a bit to pass an array of
impicit size. During the lifetime of the KVM/Xen patchset, that had
already changed (albeit just cosmetically) from GSI_NUM_PINS to
IOAPIC_NUM_PINS.

And document a bit better that this is for the *output* GSI for raising
CPU0's events when the per-CPU vector isn't available. The fact that
we create a whole set of them and then only waggle the one we're told
to, instead of having a single output and only *connecting* it to the
GSI that it should be connected to, is still non-intuitive for me.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
Message-Id: <20230412185102.441523-2-dwmw2@infradead.org>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2023-06-07 15:07:10 +01:00
Paolo Bonzini
45904b56d5 tests: fp: remove unused submodules
tests/fp/berkeley-softfloat-3 and tests/fp/berkeley-testfloat-3
have been replaced by subprojects, so remove the now-unnecessary
submodules.

Reported-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-06-07 11:05:09 +02:00
Michal Privoznik
c06b1571cc configure: check for $download value properly
If configure was invoked with --disable-download and git
submodules were not checked out a warning is produced and the
configure script fails. But the $download variable (which
reflects the enable/disable download argument) is checked for in
a weird fashion:

  test -f "$download" = disabled

Drop the '-f' to check for the actual value of the variable.

Fixes: 2019cabfee ("meson: subprojects: replace submodules with wrap files", 2023-06-06)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-06-07 11:05:09 +02:00
Paolo Bonzini
e58e55dd8d meson: fix "static build" entry in summary
Fixes: a0cbd2e849 ("meson: use prefer_static option", 2023-05-18)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-06-07 11:05:04 +02:00
Richard Henderson
f5e6786de4 target-arm queue:
* Support gdbstub (guest debug) in HVF
  * xnlx-versal: Support CANFD controller
  * bpim2u: New board model: Banana Pi BPI-M2 Ultra
  * Emulate FEAT_LSE2
  * allow DC CVA[D]P in user mode emulation
  * trap DCC access in user mode emulation
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Merge tag 'pull-target-arm-20230606' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * Support gdbstub (guest debug) in HVF
 * xnlx-versal: Support CANFD controller
 * bpim2u: New board model: Banana Pi BPI-M2 Ultra
 * Emulate FEAT_LSE2
 * allow DC CVA[D]P in user mode emulation
 * trap DCC access in user mode emulation

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# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg:                 aka "Peter Maydell <peter@archaic.org.uk>" [unknown]

* tag 'pull-target-arm-20230606' of https://git.linaro.org/people/pmaydell/qemu-arm: (42 commits)
  target/arm: trap DCC access in user mode emulation
  tests/tcg/aarch64: add DC CVA[D]P tests
  target/arm: allow DC CVA[D]P in user mode emulation
  target/arm: Enable FEAT_LSE2 for -cpu max
  tests/tcg/multiarch: Adjust sigbus.c
  tests/tcg/aarch64: Use stz2g in mte-7.c
  target/arm: Move mte check for store-exclusive
  target/arm: Relax ordered/atomic alignment checks for LSE2
  target/arm: Add SCTLR.nAA to TBFLAG_A64
  target/arm: Check alignment in helper_mte_check
  target/arm: Pass single_memop to gen_mte_checkN
  target/arm: Pass memop to gen_mte_check1*
  target/arm: Hoist finalize_memop out of do_fp_{ld, st}
  target/arm: Hoist finalize_memop out of do_gpr_{ld, st}
  target/arm: Load/store integer pair with one tcg operation
  target/arm: Sink gen_mte_check1 into load/store_exclusive
  target/arm: Use tcg_gen_qemu_{ld, st}_i128 in gen_sve_{ld, st}r
  target/arm: Use tcg_gen_qemu_st_i128 for STZG, STZ2G
  target/arm: Use tcg_gen_qemu_{st, ld}_i128 for do_fp_{st, ld}
  target/arm: Use tcg_gen_qemu_ld_i128 for LDXP
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-06 12:11:34 -07:00
Richard Henderson
c0dde5fc5c accel/tcg: Fix undefined shift in store_whole_le16
The computation is documented as unused in this case,
but triggers an ubsan error:

../accel/tcg/ldst_atomicity.c.inc:837:33: runtime error: shift exponent -32 is negative
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../accel/tcg/ldst_atomicity.c.inc:837:33 in

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20230606171629.98157-1-richard.henderson@linaro.org>
2023-06-06 12:11:02 -07:00
Richard Henderson
80bdd58ae4 * finish atomics revamp
* meson.build tweaks
 * revert avocado update
 * always upgrade/downgrade locally installed Python packages
 * switch from submodules to subprojects
 * remove --with-git= option
 * rename --enable-pypi to --enable-download, control submodules and subprojects too
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* finish atomics revamp
* meson.build tweaks
* revert avocado update
* always upgrade/downgrade locally installed Python packages
* switch from submodules to subprojects
* remove --with-git= option
* rename --enable-pypi to --enable-download, control submodules and subprojects too

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# gpg: Signature made Tue 06 Jun 2023 07:30:07 AM PDT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [unknown]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [unknown]
# 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: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (21 commits)
  configure: remove --with-git-submodules=
  build: remove git submodule handling from main makefile
  meson: subprojects: replace berkeley-{soft,test}float-3 with wraps
  pc-bios/s390-ccw: always build network bootloader
  configure: move SLOF submodule handling to pc-bios/s390-ccw
  meson: subprojects: replace submodules with wrap files
  build: log submodule update from git-submodule.sh
  git-submodule: allow partial update of .git-submodule-status
  configure: rename --enable-pypi to --enable-download, control subprojects too
  configure: remove --with-git= option
  mkvenv: always pass locally-installed packages to pip
  tests: Use separate virtual environment for avocado
  Revert "tests/requirements.txt: bump up avocado-framework version to 101.0"
  scsi/qemu-pr-helper: Drop support for 'old' libmultipath API
  meson.build: Use -Wno-undef only for SDL2 versions that need it
  meson.build: Group the audio backend entries in a separate summary section
  meson.build: Group the network backend entries in a separate summary section
  meson.build: Group the UI entries in a separate summary section
  scripts: remove dead file
  atomics: eliminate mb_read/mb_set
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-06 10:17:20 -07:00
Paolo Bonzini
6f3ae23b29 configure: remove --with-git-submodules=
Reuse --enable/--disable-download to control git submodules as well.
Adjust the error messages of git-submodule.sh to refer to the new
option.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-06-06 16:30:01 +02:00
Paolo Bonzini
1f468152fb build: remove git submodule handling from main makefile
The only remaining user of submodules at build time is roms/SLOF,
which is handled in pc-bios/s390-ccw/Makefile.  Remove the relevant
code from the main makefile.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-06-06 16:30:01 +02:00