Commit Graph

100447 Commits

Author SHA1 Message Date
Richard Henderson
29f5e92502 tcg: Introduce paired register allocation
There are several instances where we need to be able to
allocate a pair of registers to related inputs/outputs.
Add 'p' and 'm' register constraints for this, in order to
be able to allocate the even/odd register first or second.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05 11:34:14 -08:00
Alessandro Di Federico
dc63b1492c Update scripts/meson-buildoptions.sh
Note: `Makefile` relies on modification dates in the source tree to
detect changes to `meson_options.txt`. However, git does not track
those. Therefore, the following was necessary to regenerate
`meson-buildoptions.sh`:

    touch meson_options.txt
    cd "$BUILD_DIR"
    make update-buildoptions

Signed-off-by: Alessandro Di Federico <ale@rev.ng>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20230102104113.3438895-1-ale@rev.ng>
2023-01-05 09:19:02 -08:00
Marco Liebel
d63aeb3b7e Hexagon (target/hexagon) implement mutability mask for GPRs
Some registers are defined to have immutable bits, this commit
will implement that behavior.

Signed-off-by: Marco Liebel <quic_mliebel@quicinc.com>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20230105102349.2181856-1-quic_mliebel@quicinc.com>
2023-01-05 09:19:02 -08:00
Alessandro Di Federico
8a9ce0952b target/hexagon: suppress unused variable warning
This patch manually suppresses a warning for an unused variable
(yynerrs) emitted by bison.

This warning has been triggered for the first time by clang 15.

This patch also disables `-Wextra`, which is not usually adopted in
QEMU. However, clang 15 triggers the warning fixed in this patch even in
absence of `-Wextra`.

Signed-off-by: Alessandro Di Federico <ale@rev.ng>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Tested-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20221221155327.1504117-1-ale@rev.ng>
2023-01-05 09:19:02 -08:00
Matheus Tavares Bernardino
aa62435043 target/hexagon/idef-parser: fix two typos in README
Signed-off-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Alessandro Di Federico <ale@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <fe67371e03f9dde38eb7554937da0a96a230730e.1672174122.git.quic_mathbern@quicinc.com>
2023-01-05 09:19:02 -08:00
Mukilan Thiyagarajan
eaee3b6faf tests/tcg/hexagon: fix underspecifed asm constraints
There are two test cases where the inline asm doesn't
have the correct constraints causing them to fail.

In misc.c, the 'result' output needs the early clobber
modifier since the rest of the inputs are read after
assignment to the output register.

In mem_noshuf.c, the register r7 is written to but
not specified in the clobber list.

Signed-off-by: Mukilan Thiyagarajan <quic_mthiyaga@quicinc.com>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20221229081836.12130-1-quic_mthiyaga@quicinc.com>
2023-01-05 09:19:02 -08:00
Mukilan Thiyagarajan
72895676e7 target/hexagon: rename aliased register HEX_REG_P3_0
The patch renames the identifier of the 32bit register
HEX_REG_P3_0 to HEX_REG_P3_0_ALIASED.

This change is to intended to provide some warning that
HEX_REG_P3_0 is an aliased register which has multiple
representations in CPU state and therefore might require
special handling in some contexts. The hope is to prevent
accidental misuse of this register e.g the issue reported
for the signals tests failure [here][1].

[1]: https://lists.gnu.org/archive/html/qemu-devel/2021-11/msg01102.html

Signed-off-by: Mukilan Thiyagarajan <quic_mthiyaga@quicinc.com>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20221229092006.10709-3-quic_mthiyaga@quicinc.com>
2023-01-05 09:19:02 -08:00
Mukilan Thiyagarajan
c979d901c8 linux-user/hexagon: fix signal context save & restore
This patch fixes the issue originally reported in
this thread:

https://lists.gnu.org/archive/html/qemu-devel/2021-11/msg01102.html

The root cause of the issue is a bug in the hexagon specific
logic for saving & restoring context during signal delivery.
The CPU state has two different representations for the
predicate registers. The current logic saves & restores only
the aliased HEX_REG_P3_O register, which is part of env->gpr[]
field in the CPU state, but not the individual byte-level
predicate registers (pO, p1, p2, p3) backed by env->pred[].

Since all predicated instructions refer only to the
indiviual registers, switching to and back from a signal handler
can clobber these registers if the signal handler writes to them
causing the normal application code to behave unpredictably when
context is restored.

In the reported issue with the 'signals' test, since the updated
hexagon toolchain had built musl with -O2, the functions called
from non_trivial_free were inlined. This meant that the code
emitted reused predicate P0 computed in the entry translation
block of the function non_trivial_free in one of the child TB
as part of an assertion. Since P0 is clobbered by the signal
handler in the signals test, the assertion in non_trivial_free
fails incorectly. Since musl for hexagon implements the 'abort'
function by deliberately writing to memory via null pointer,
this causes the test to fail with segmentation fault.

This patch modifies the signal context save & restore logic
to include the individual p0, p1, p2, p3 and excludes the
32b p3_0 register since its value is derived from the former
registers. It also adds a new test case that reliabily
reproduces the issue for all four predicate registers.

Buglink: https://github.com/quic/toolchain_for_hexagon/issues/6
Signed-off-by: Mukilan Thiyagarajan <quic_mthiyaga@quicinc.com>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20221229092006.10709-2-quic_mthiyaga@quicinc.com>
2023-01-05 09:19:02 -08:00
Peter Maydell
d1852caab1 Python patch roundup
Mostly CI fixes and some small debugging improvements.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE+ber27ys35W+dsvQfe+BBqr8OQ4FAmO16doACgkQfe+BBqr8
 OQ6CyBAAnJ3Opkz00uUNZIJndDCi9NdLAFEOYSlUQ/4Vx0WTphKRP/NSwfTsSymj
 ps6E6op0H8AL5PBDjVAF8CzGK9aHNhhDIahbein/42/OQo9uWWMlOnZYhwx8tfxS
 8AuYk3s9HeLkSleSHGA0zJZhNB5BtYKewB9FYNZz07fk9wECAVmSOE20g6KR3Tec
 Fya+YRrvmjCxovGlxxFVi3c1B37bAS25hV5GlrSXxWtZcodIPUsyNEp03SuFjSj7
 EvqrRXI3UdR2cSwd56BFyZJfgkKtoLjQMf/hTC8RPHej4SDnpFW8yuN1N3wiSJLn
 td+yfdIlqg95mF15a2qhwqp+xINWj2J277tkBwbF3FYwChKlJFavw/Ihv6SJIV0+
 7ddiJ/M6PIqsdkfL+//+oFP4Jnh3sW0T5Aa0AYTe/JSMzhLsiOV4H77PZKlylsIt
 yzNskXQTyGdjZBAQtabTRS80iiKVuxCslJe9a8SQs1Jgiq6cu2pLt2IOLd+cUO0t
 ETI8JWA8Jc+aZJ3XNev+hfWHPfpUdu4trO3pIUXTS2GS01+Ku9QZsR7Xllr6aj3G
 8+NCP9ApA3k9szJFCM7d3cJ0WNlA4GZhVFSKmFMo56dZ8T0dRp8JJ2E5/XqTFlfi
 JU2pU/3OVhcXkPjSUPHqXF0ep4KaLxc4Ubc2SDk5BotqwlrDKTs=
 =/6UU
 -----END PGP SIGNATURE-----

Merge tag 'python-pull-request' of https://gitlab.com/jsnow/qemu into staging

Python patch roundup

Mostly CI fixes and some small debugging improvements.

# gpg: Signature made Wed 04 Jan 2023 21:04:26 GMT
# gpg:                using RSA key F9B7ABDBBCACDF95BE76CBD07DEF8106AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>" [full]
# Primary key fingerprint: FAEB 9711 A12C F475 812F  18F2 88A9 064D 1835 61EB
#      Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76  CBD0 7DEF 8106 AAFC 390E

* tag 'python-pull-request' of https://gitlab.com/jsnow/qemu:
  python: add 3.11 to supported list
  iotests/check: Fix typing for sys.exit() value
  Python: fix flake8 config
  python/machine: Handle termination cases without QMP
  python/machine: Add debug logging to key state changes

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 16:59:22 +00:00
Stephen Longfield
93c9678de9 hw/net: Fix read of uninitialized memory in imx_fec.
Size is used at lines 1088/1188 for the loop, which reads the last 4
bytes from the crc_ptr so it does need to get increased, however it
shouldn't be increased before the buffer is passed to CRC computation,
or the crc32 function will access uninitialized memory.

This was pointed out to me by clg@kaod.org during the code review of
a similar patch to hw/net/ftgmac100.c

Change-Id: Ib0464303b191af1e28abeb2f5105eb25aadb5e9b
Signed-off-by: Stephen Longfield <slongfield@google.com>
Reviewed-by: Patrick Venture <venture@google.com>
Message-id: 20221221183202.3788132-1-slongfield@google.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 15:33:00 +00:00
Jean-Christophe Dubois
c73c279830 i.MX7D: Connect IRQs to GPIO devices.
IRQs were not associated to the various GPIO devices inside i.MX7D.
This patch brings the i.MX7D on par with i.MX6.

Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Message-id: 20221226101418.415170-1-jcd@tribudubois.net
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 15:04:17 +00:00
Jean-Christophe Dubois
a1e03956f4 i.MX6UL: Add a specific GPT timer instance for the i.MX6UL
The i.MX6UL doesn't support CLK_HIGH ou CLK_HIGH_DIV clock source.

Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 15:02:08 +00:00
Jean-Christophe Dubois
111c4c49c3 i.MX7D: Compute clock frequency for the fixed frequency clocks.
CCM derived clocks will have to be added later.

Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 15:01:11 +00:00
Jean-Christophe Dubois
60c98e7205 i.MX7D: Connect GPT timers to IRQ
So far the GPT timers were unable to raise IRQs to the processor.

Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 14:59:37 +00:00
Philippe Mathieu-Daudé
9de9fa5cf2 hw/arm/smmu-common: Avoid using inlined functions with external linkage
When using Clang ("Apple clang version 14.0.0 (clang-1400.0.29.202)")
and building with -Wall we get:

  hw/arm/smmu-common.c:173:33: warning: static function 'smmu_hash_remove_by_asid_iova' is used in an inline function with external linkage [-Wstatic-in-inline]
  hw/arm/smmu-common.h:170:1: note: use 'static' to give inline function 'smmu_iotlb_inv_iova' internal linkage
    void smmu_iotlb_inv_iova(SMMUState *s, int asid, dma_addr_t iova,
    ^
    static

None of our code base require / use inlined functions with external
linkage. Some places use internal inlining in the hot path. These
two functions are certainly not in any hot path and don't justify
any inlining, so these are likely oversights rather than intentional.

Reported-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20221216214924.4711-3-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 14:51:27 +00:00
Philippe Mathieu-Daudé
1e793dd696 hw/arm/smmu-common: Reduce smmu_inv_notifiers_mr() scope
This function is not used anywhere outside this file,
so we can make the function "static void".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20221216214924.4711-2-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 14:51:27 +00:00
Zhuojia Shen
bc6bd20ee3 target/arm: align exposed ID registers with Linux
In CPUID registers exposed to userspace, some registers were missing
and some fields were not exposed.  This patch aligns exposed ID
registers and their fields with what the upstream kernel currently
exposes.

Specifically, the following new ID registers/fields are exposed to
userspace:

ID_AA64PFR1_EL1.BT:       bits 3-0
ID_AA64PFR1_EL1.MTE:      bits 11-8
ID_AA64PFR1_EL1.SME:      bits 27-24

ID_AA64ZFR0_EL1.SVEver:   bits 3-0
ID_AA64ZFR0_EL1.AES:      bits 7-4
ID_AA64ZFR0_EL1.BitPerm:  bits 19-16
ID_AA64ZFR0_EL1.BF16:     bits 23-20
ID_AA64ZFR0_EL1.SHA3:     bits 35-32
ID_AA64ZFR0_EL1.SM4:      bits 43-40
ID_AA64ZFR0_EL1.I8MM:     bits 47-44
ID_AA64ZFR0_EL1.F32MM:    bits 55-52
ID_AA64ZFR0_EL1.F64MM:    bits 59-56

ID_AA64SMFR0_EL1.F32F32:  bit 32
ID_AA64SMFR0_EL1.B16F32:  bit 34
ID_AA64SMFR0_EL1.F16F32:  bit 35
ID_AA64SMFR0_EL1.I8I32:   bits 39-36
ID_AA64SMFR0_EL1.F64F64:  bit 48
ID_AA64SMFR0_EL1.I16I64:  bits 55-52
ID_AA64SMFR0_EL1.FA64:    bit 63

ID_AA64MMFR0_EL1.ECV:     bits 63-60

ID_AA64MMFR1_EL1.AFP:     bits 47-44

ID_AA64MMFR2_EL1.AT:      bits 35-32

ID_AA64ISAR0_EL1.RNDR:    bits 63-60

ID_AA64ISAR1_EL1.FRINTTS: bits 35-32
ID_AA64ISAR1_EL1.BF16:    bits 47-44
ID_AA64ISAR1_EL1.DGH:     bits 51-48
ID_AA64ISAR1_EL1.I8MM:    bits 55-52

ID_AA64ISAR2_EL1.WFxT:    bits 3-0
ID_AA64ISAR2_EL1.RPRES:   bits 7-4
ID_AA64ISAR2_EL1.GPA3:    bits 11-8
ID_AA64ISAR2_EL1.APA3:    bits 15-12

The code is also refactored to use symbolic names for ID register fields
for better readability and maintainability.

The test case in tests/tcg/aarch64/sysregs.c is also updated to match
the intended behavior.

Signed-off-by: Zhuojia Shen <chaosdefinition@hotmail.com>
Message-id: DS7PR12MB6309FB585E10772928F14271ACE79@DS7PR12MB6309.namprd12.prod.outlook.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: use Sn_n_Cn_Cn_n syntax to work with older assemblers
that don't recognize id_aa64isar2_el1 and id_aa64mmfr2_el1]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 14:12:34 +00:00
Philippe Mathieu-Daudé
6aee34000e hw/arm/nseries: Silent -Wmissing-field-initializers warning
Silent when compiling with -Wextra:

  ../hw/arm/nseries.c:1081:12: warning: missing field 'line' initializer [-Wmissing-field-initializers]
      { NULL }
             ^

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20221220142520.24094-4-philmd@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 14:11:15 +00:00
Philippe Mathieu-Daudé
bd8d01bf57 hw/arm/nseries: Constify various read-only arrays
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221220142520.24094-3-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 14:11:15 +00:00
Philippe Mathieu-Daudé
3d15370894 hw/input/tsc2xxx: Constify set_transform()'s MouseTransformInfo arg
The pointed MouseTransformInfo structure is accessed read-only.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221220142520.24094-2-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 14:11:15 +00:00
Peter Maydell
f8af61fa14 Hi,
"Host Memory Backends" and "Memory devices" queue ("mem"):
 - virtio-mem fixes
 - Use new MPOL_PREFERRED_MANY mbind() policy for memory backends if
   possible
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAvFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAmOyvlwRHGRhdmlkQHJl
 ZGhhdC5jb20ACgkQTd4Q9wD/g1o52Q//WdmLKrvMyr32crqxPQD6EjqAOUyjV0ps
 +5og4glIMb8+0Br4lIOOsZ71qYpBGCKHVAYr5FYCusYGBoNWMHWXzlYUB7RlMQcE
 VUZ1aJIzitR4GPul++j0rZxwip9WtDGOhXLoGbtQnpMdPNYx27bxG6fel4uZ/8gD
 R0jXnB4SHb4g4CvAp4xx+ffbtpWVGuGA8tPe4Hktsib8NFjBxrwoLDlb8+aqWuBN
 qyDMlhv1rbigVwTFkzzq0BVWMXjHWJ7Bfz9jh752u5fdn+ekEHoQ4pHHKb5CzbS4
 JOXUgozMUdroctZEcie0yCRYSjwUILoBo4h5XaaT3YEFlhOC33tVX2WXEAD7o7zF
 AGwFq39VWcodU5mRSMoGnAdsDS+nxbBER6uebQQb72HrtUn1p+afR9jxLeWbfOMp
 6mWw8/XXLLo3dlOUyn3HedBQP+iitFf13vPSUD2GAIP8gAb1DWWO61kpoP2lxNdK
 89kcKv42X8g53d19F8Ayv7kJdjxpeCczbrFhBT8D66OXJZQikp9NFBm9o4lIVVjs
 DMBHw08pT6UeQfktExTsrOAlezavicwqTCrC9zXvbTC31YFr8cwf7RaB3olQm+rA
 J19y3c6nsvniIyhG+yYLR8z9Worr5ydGinICZpDmeQGXb+qydne5W0+0WVL0k0HT
 iFZesSH2cak=
 =aVS3
 -----END PGP SIGNATURE-----

Merge tag 'mem-2023-01-02' of https://github.com/davidhildenbrand/qemu into staging

Hi,

"Host Memory Backends" and "Memory devices" queue ("mem"):
- virtio-mem fixes
- Use new MPOL_PREFERRED_MANY mbind() policy for memory backends if
  possible

# gpg: Signature made Mon 02 Jan 2023 11:22:04 GMT
# gpg:                using RSA key 1BD9CAAD735C4C3A460DFCCA4DDE10F700FF835A
# gpg:                issuer "david@redhat.com"
# gpg: Good signature from "David Hildenbrand <david@redhat.com>" [marginal]
# gpg:                 aka "David Hildenbrand <davidhildenbrand@gmail.com>" [full]
# gpg:                 aka "David Hildenbrand <hildenbr@in.tum.de>" [unknown]
# Primary key fingerprint: 1BD9 CAAD 735C 4C3A 460D  FCCA 4DDE 10F7 00FF 835A

* tag 'mem-2023-01-02' of https://github.com/davidhildenbrand/qemu:
  hostmem: Honor multiple preferred nodes if possible
  virtio-mem: Fix typo in function name
  virtio-mem: Fix the iterator variable in a vmem->rdl_list loop
  virtio-mem: Fix the bitmap index of the section offset

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 14:05:21 +00:00
Claudio Fontana
edd2dc4e3a target/arm: cleanup cpu includes
Remove some unused headers.

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Message-id: 20221213190537.511-7-farosas@suse.de
[added back some includes that are still needed at this point]
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 12:28:37 +00:00
Fabiano Rosas
cdfea280b3 target/arm: Remove unused includes from helper.c
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20221213190537.511-6-farosas@suse.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 12:28:37 +00:00
Fabiano Rosas
c6675a857c target/arm: Remove unused includes from m_helper.c
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20221213190537.511-5-farosas@suse.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 12:28:37 +00:00
Fabiano Rosas
f927dbda86 target/arm: Fix checkpatch brace errors in helper.c
Fix this:
ERROR: braces {} are necessary for all arms of this statement

Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20221213190537.511-4-farosas@suse.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 12:28:37 +00:00
Fabiano Rosas
04215eb100 target/arm: Fix checkpatch space errors in helper.c
Fix the following:

ERROR: spaces required around that '|' (ctx:VxV)
ERROR: space required before the open parenthesis '('
ERROR: spaces required around that '+' (ctx:VxB)
ERROR: space prohibited between function name and open parenthesis '('

(the last two still have some occurrences in macros which I left
behind because it might impact readability)

Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20221213190537.511-3-farosas@suse.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 12:28:37 +00:00
Fabiano Rosas
9b37a28c78 target/arm: Fix checkpatch comment style warnings in helper.c
Fix these:

WARNING: Block comments use a leading /* on a separate line
WARNING: Block comments use * on subsequent lines
WARNING: Block comments use a trailing */ on a separate line

Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20221213190537.511-2-farosas@suse.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 12:28:36 +00:00
Axel Heider
8d71beaf1e hw/timer/imx_epit: fix compare timer handling
- fix #1263 for CR writes
- rework compare time handling
  - The compare timer has to run even if CR.OCIEN is not set,
    as SR.OCIF must be updated.
  - The compare timer fires exactly once when the
    compare value is less than the current value, but the
    reload values is less than the compare value.
  - The compare timer will never fire if the reload value is
    less than the compare value. Disable it in this case.

Signed-off-by: Axel Heider <axel.heider@hensoldt.net>
[PMM: fixed minor style nits]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 12:14:43 +00:00
Axel Heider
e662449aa6 hw/timer/imx_epit: remove explicit fields cnt and freq
The CNT register is a read-only register. There is no need to
store it's value, it can be calculated on demand.
The calculated frequency is needed temporarily only.

Note that this is a migration compatibility break for all boards
types that use the EPIT peripheral.

Signed-off-by: Axel Heider <axel.heider@hensoldt.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 12:14:43 +00:00
Axel Heider
793a6ea075 hw/timer/imx_epit: factor out register write handlers
Signed-off-by: Axel Heider <axel.heider@hensoldt.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 12:14:43 +00:00
Axel Heider
3d46158125 hw/timer/imx_epit: hard reset initializes CR with 0
Signed-off-by: Axel Heider <axel.heider@hensoldt.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 12:14:43 +00:00
Axel Heider
2ca267fd36 hw/timer/imx_epit: update interrupt state on CR write access
The interrupt state can change due to:
- reset clears both SR.OCIF and CR.OCIE
- write to CR.EN or CR.OCIE

Signed-off-by: Axel Heider <axel.heider@hensoldt.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 12:14:43 +00:00
Axel Heider
1ead962edf hw/timer/imx_epit: define SR_OCIF
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 12:14:43 +00:00
Axel Heider
018ee7948f hw/timer/imx_epit: cleanup CR defines
remove unused defines, add needed defines

Signed-off-by: Axel Heider <axel.heider@hensoldt.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 12:14:43 +00:00
Axel Heider
b9c993aaf8 hw/timer/imx_epit: improve comments
Fix typos, add background information

Signed-off-by: Axel Heider <axel.heider@hensoldt.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 12:14:43 +00:00
Alex Bennée
9788d4c007 target/arm: fix handling of HLT semihosting in system mode
The check semihosting_enabled() wants to know if the guest is
currently in user mode. Unlike the other cases the test was inverted
causing us to block semihosting calls in non-EL0 modes.

Cc: qemu-stable@nongnu.org
Fixes: 19b26317e9 (target/arm: Honour -semihosting-config userspace=on)
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 11:53:14 +00:00
Tobias Röhmel
5f536d01d1 target/arm: Add ARM Cortex-R52 CPU
All constants are taken from the ARM Cortex-R52 Processor TRM Revision: r1p3

Signed-off-by: Tobias Röhmel <tobias.roehmel@rwth-aachen.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20221206102504.165775-8-tobias.roehmel@rwth-aachen.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 11:51:09 +00:00
Tobias Röhmel
fca45e3467 target/arm: Add PMSAv8r functionality
Add PMSAv8r translation.

Signed-off-by: Tobias Röhmel <tobias.roehmel@rwth-aachen.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20221206102504.165775-7-tobias.roehmel@rwth-aachen.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 11:51:09 +00:00
Tobias Röhmel
761c46425e target/arm: Add PMSAv8r registers
Signed-off-by: Tobias Röhmel <tobias.roehmel@rwth-aachen.de>
Message-id: 20221206102504.165775-6-tobias.roehmel@rwth-aachen.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 11:51:09 +00:00
Tobias Röhmel
452c67a427 target/arm: Enable TTBCR_EAE for ARMv8-R AArch32
ARMv8-R AArch32 CPUs behave as if TTBCR.EAE is always 1 even
tough they don't have the TTBCR register.
See ARM Architecture Reference Manual Supplement - ARMv8, for the ARMv8-R
AArch32 architecture profile Version:A.c section C1.2.

Signed-off-by: Tobias Röhmel <tobias.roehmel@rwth-aachen.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20221206102504.165775-5-tobias.roehmel@rwth-aachen.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 11:51:09 +00:00
Tobias Röhmel
faa1451e7b target/arm: Make stage_2_format for cache attributes optional
The v8R PMSAv8 has a two-stage MPU translation process, but, unlike
VMSAv8, the stage 2 attributes are in the same format as the stage 1
attributes (8-bit MAIR format). Rather than converting the MAIR
format to the format used for VMSA stage 2 (bits [5:2] of a VMSA
stage 2 descriptor) and then converting back to do the attribute
combination, allow combined_attrs_nofwb() to accept s2 attributes
that are already in the MAIR format.

We move the assert() to combined_attrs_fwb(), because that function
really does require a VMSA stage 2 attribute format. (We will never
get there for v8R, because PMSAv8 does not implement FEAT_S2FWB.)

Signed-off-by: Tobias Röhmel <tobias.roehmel@rwth-aachen.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20221206102504.165775-4-tobias.roehmel@rwth-aachen.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 11:51:09 +00:00
Tobias Röhmel
910e4f2497 target/arm: Make RVBAR available for all ARMv8 CPUs
RVBAR shadows RVBAR_ELx where x is the highest exception
level if the highest EL is not EL3. This patch also allows
ARMv8 CPUs to change the reset address with
the rvbar property.

Signed-off-by: Tobias Röhmel <tobias.roehmel@rwth-aachen.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20221206102504.165775-3-tobias.roehmel@rwth-aachen.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 11:51:09 +00:00
Tobias Röhmel
c7f786abe2 target/arm: Don't add all MIDR aliases for cores that implement PMSA
Cores with PMSA have the MPUIR register which has the
same encoding as the MIDR alias with opc2=4. So we only
add that alias if we are not realizing a core that
implements PMSA.

Signed-off-by: Tobias Röhmel <tobias.roehmel@rwth-aachen.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221206102504.165775-2-tobias.roehmel@rwth-aachen.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-05 11:51:09 +00:00
Peter Maydell
9e65f4e6da target/arm:Set lg_page_size to 0 if either S1 or S2 asks for it
In get_phys_addr_twostage() we set the lg_page_size of the result to
the maximum of the stage 1 and stage 2 page sizes.  This works for
the case where we do want to create a TLB entry, because we know the
common TLB code only creates entries of the TARGET_PAGE_SIZE and
asking for a size larger than that only means that invalidations
invalidate the whole larger area.  However, if lg_page_size is
smaller than TARGET_PAGE_SIZE this effectively means "don't create a
TLB entry"; in this case if either S1 or S2 said "this covers less
than a page and can't go in a TLB" then the final result also should
be marked that way.  Set the resulting page size to 0 if either
stage asked for a less-than-a-page entry, and expand the comment
to explain what's going on.

This has no effect for VMSA because currently the VMSA lookup always
returns results that cover at least TARGET_PAGE_SIZE; however when we
add v8R support it will reuse this code path, and for v8R the S1 and
S2 results can be smaller than TARGET_PAGE_SIZE.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221212142708.610090-1-peter.maydell@linaro.org
2023-01-05 11:51:09 +00:00
Philippe Mathieu-Daudé
8940ea0d32 tcg: Massage process_op_defs()
In preparation of introducing paired registers,
massage a bit process_op_defs()'s switch case.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
[PMD: Split from bigger patch, 1/3]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221219220925.79218-2-philmd@linaro.org>
2023-01-04 16:20:01 -08:00
Richard Henderson
568e010b89 tcg: Remove check_regs
We now check the consistency of reg_to_temp[] with each update,
so the utility of checking consistency at the end of each
opcode is minimal.  In addition, the form of this check is
quite expensive, consuming 10% of a checking-enabled build.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-04 16:20:01 -08:00
Richard Henderson
098859f108 tcg: Centralize updates to reg_to_temp
Create two new functions, set_temp_val_{reg,nonreg}.
Assert that the reg_to_temp mapping is correct before
any changes are made.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-04 16:20:01 -08:00
Richard Henderson
36f5539cfd tcg: Fix tcg_reg_alloc_dup*
The assignment to mem_coherent should be done with any
modification, not simply with a newly allocated register.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-04 16:20:01 -08:00
Richard Henderson
7789b16d11 tci: MAX_OPC_PARAM_IARGS is no longer used
Unused since commit 7b7d8b2d9a ("tcg/tci: Use ffi for calls").

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-04 16:20:01 -08:00
Richard Henderson
8d21de51b9 tcg: Remove TCG_TARGET_STACK_GROWSUP
The hppa host code has been removed since 2013; this
should have been deleted at the same time.

Fixes: 802b508123 ("tcg-hppa: Remove tcg backend")
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-04 16:20:01 -08:00