Commit Graph

115125 Commits

Author SHA1 Message Date
Richard Henderson
6c180490b0 tests/tcg: Use --noexecstack with assembler files
Add the --noexecstack assembler command-line option to avoid:

  /usr/bin/ld: warning: boot.o: missing .note.GNU-stack section implies executable stack
  /usr/bin/ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker

which is enabled by default with current debian cross toolchains.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240724010733.22129-2-richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-4-alex.bennee@linaro.org>
2024-07-30 11:44:11 +01:00
Daniel P. Berrangé
b86a46980b gitlab: display /packages.txt in build jobs
The lcitool created containers save the full distro package list
details into /packages.txt. The idea is that build jobs will 'cat'
this file, so that the build log has a record of what packages
were used. This is important info, because when it comes to debug
failures, the original container is often lost.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20240724095505.33544-3-berrange@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-3-alex.bennee@linaro.org>
2024-07-30 11:38:34 +01:00
Daniel P. Berrangé
c1d822ca34 gitlab: record installed packages in /packages.txt in containers
The lcitool created containers save the full distro package list
details into /packages.txt. The idea is that build jobs will 'cat'
this file, so that the build log has a record of what packages
were used. This is important info, because when it comes to debug
failures, the original container is often lost.

This extends the manually written dockerfiles to also create the
/packages.txt file.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20240724095505.33544-2-berrange@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-2-alex.bennee@linaro.org>
2024-07-30 11:38:34 +01:00
Richard Henderson
ef009e4b4d s390x updates:
- fixup for a s390x-only query-cpu-model-expansion extension
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Merge tag 's390x-20240730' of https://github.com/davidhildenbrand/qemu into staging

s390x updates:
- fixup for a s390x-only query-cpu-model-expansion extension

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# gpg:                 aka "David Hildenbrand <hildenbr@in.tum.de>" [unknown]
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* tag 's390x-20240730' of https://github.com/davidhildenbrand/qemu:
  target/s390x: move @deprecated-props to CpuModelExpansion Info

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-07-30 19:21:58 +10:00
Richard Henderson
8617cb073c util/getauxval: Ensure setting errno if not found
util/getauxval: Use elf_aux_info on OpenBSD
 linux-user: open_self_stat: Implement num_threads
 target/rx: Use target_ulong for address in LI
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Merge tag 'pull-misc-20240730' of https://gitlab.com/rth7680/qemu into staging

util/getauxval: Ensure setting errno if not found
util/getauxval: Use elf_aux_info on OpenBSD
linux-user: open_self_stat: Implement num_threads
target/rx: Use target_ulong for address in LI

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* tag 'pull-misc-20240730' of https://gitlab.com/rth7680/qemu:
  linux-user: open_self_stat: Implement num_threads
  util/cpuinfo: Make use of elf_aux_info(3) on OpenBSD
  linux-user/main: Check errno when getting AT_EXECFD
  util/getauxval: Ensure setting errno if not found
  target/rx: Use target_ulong for address in LI

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-07-30 11:12:42 +10:00
Fabio D'Urso
d9b019e0a0 linux-user: open_self_stat: Implement num_threads
The num_threads field reports the total number of threads in the
process. In QEMU, this is equal to the number of CPU instances.

Signed-off-by: Fabio D'Urso <fdurso@google.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20240619194109.248066-1-fdurso@google.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-07-30 07:59:23 +10:00
Brad Smith
27fca0a0d5 util/cpuinfo: Make use of elf_aux_info(3) on OpenBSD
Signed-off-by: Brad Smith <brad@comstyle.com>
Message-ID: <ZqXB_zz0fR1CpA7k@humpty.home.comstyle.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-07-30 07:59:23 +10:00
Vivian Wang
25268a1855 linux-user/main: Check errno when getting AT_EXECFD
It's possible for AT_EXECFD to end up with a valid value of 0. Check
errno when using qemu_getauxval instead of return value to handle this
case.

Not handling this case leads to a confusing condition where the
executable ends up as fd 0, i.e. stdin.

Signed-off-by: Vivian Wang <uwu@dram.page>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Fixes: 0b959cf5e4 ("linux-user: Use qemu_getauxval for AT_EXECFD")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2448
Message-ID: <20240723100545.405476-3-uwu@dram.page>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-07-30 07:59:23 +10:00
Vivian Wang
22531d8cc5 util/getauxval: Ensure setting errno if not found
Sometimes zero is a valid value for getauxval (e.g. AT_EXECFD). Make
sure that we can distinguish between a valid zero value and a not found
entry by setting errno.

Assumes that getauxval from sys/auxv.h sets errno correctly.

Signed-off-by: Vivian Wang <uwu@dram.page>
Message-ID: <20240723100545.405476-2-uwu@dram.page>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-07-30 07:59:23 +10:00
Richard Henderson
397c08b828 QAPI patches patches for 2024-07-29
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Merge tag 'pull-qapi-2024-07-29' of https://repo.or.cz/qemu/armbru into staging

QAPI patches patches for 2024-07-29

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# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]

* tag 'pull-qapi-2024-07-29' of https://repo.or.cz/qemu/armbru:
  qapi/machine: Belatedly document target loongarch64 is since 7.1
  qapi/qom: make some QOM properties depend on the build settings

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-07-30 07:33:19 +10:00
Collin Walling
442110bc6f target/s390x: move @deprecated-props to CpuModelExpansion Info
CpuModelInfo is used both as command argument and in command
returns.

Its @deprecated-props array does not make any sense in arguments,
and is silently ignored.  We actually want it only as return value
of query-cpu-model-expansion.

Move it from CpuModelInfo to CpuModelExpansionType, and document
its dependence on expansion type property.

This was identified late during review [1] and we have to fix it up
while it's not part of an official QEMU release yet.

[1] https://lore.kernel.org/qemu-devel/20240719181741.35146-1-walling@linux.ibm.com/

Message-ID: <20240726203646.20279-1-walling@linux.ibm.com>
Fixes: eed0e8ffa3 ("target/s390x: filter deprecated properties based on model expansion type")
Signed-off-by: Collin Walling <walling@linux.ibm.com>
[ david: - add "Fixes", adjust description, reference v3 instead
         - make property s390x-only and non-optional
         - fixup "populate" vs. "populated" ]
Signed-off-by: David Hildenbrand <david@redhat.com>
2024-07-29 21:47:16 +02:00
Peter Maydell
73188068d7 system/physmem: Where we assume we have a RAM MR, assert it
In the functions invalidate_and_set_dirty() and
cpu_physical_memory_snapshot_and_clear_dirty(), we assume that we
are dealing with RAM memory regions. In this case we know that
memory_region_get_ram_addr() will succeed. Assert this before we
use the returned ram_addr_t in arithmetic.

This makes Coverity happier about these functions: it otherwise
complains that we might have an arithmetic overflow that stems
from the possible -1 return from memory_region_get_ram_addr().

Resolves: Coverity CID 1547629, 1547715

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-id: 20240723170513.1676453-1-peter.maydell@linaro.org
2024-07-29 17:03:35 +01:00
Peter Maydell
525650cd71 target/sh4: Avoid shift into sign bit in update_itlb_use()
In update_itlb_use() the variables or_mask and and_mask are uint8_t,
which means that in expressions like "and_mask << 24" the usual C
arithmetic conversions will result in the shift being done as a
signed int type, and so we will shift into the sign bit. For QEMU
this isn't undefined behaviour because we use -fwrapv; but we can
avoid it anyway by using uint32_t types for or_mask and and_mask.

Resolves: Coverity CID 1547628
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Message-id: 20240723172431.1757296-1-peter.maydell@linaro.org
2024-07-29 17:00:20 +01:00
Peter Maydell
bde8adb808 target/i386: Remove dead assignment to ss in do_interrupt64()
Coverity points out that in do_interrupt64() in the "to inner
privilege" codepath we set "ss = 0", but because we also set
"new_stack = 1" there, later in the function we will always override
that value of ss with "ss = 0 | dpl".

Remove the unnecessary initialization of ss, which allows us to
reduce the scope of the variable to only where it is used.  Borrow a
comment from helper_lcall_protected() that explains what "0 | dpl"
means here.

Resolves: Coverity CID 1527395
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240723162525.1585743-1-peter.maydell@linaro.org
2024-07-29 16:59:44 +01:00
Peter Maydell
7d01623a1b target/m68k: avoid shift into sign bit in dump_address_map()
Coverity complains (CID 1547592) that in dump_address_map() we take a
value stored in a signed integer variable 'i' and shift it by enough
to shift into the sign bit when we construct the value 'logical'.
This isn't a bug for QEMU because we use -fwrapv semantics, but
we can make Coverity happy by using an unsigned type for the loop
variables i, j, k in this function.

While we're changing the declaration of the variables, put them
in the for() loops so their scope is the minimum required (a style
now permitted by our coding style guide).

Resolves: Coverity CID 1547592
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240723154207.1483665-1-peter.maydell@linaro.org
2024-07-29 16:58:58 +01:00
Peter Maydell
b42ba4ea43 target/xtensa: Make use of 'segment' in pptlb helper less confusing
Coverity gets confused about the use of the 'segment' variable in the
pptlb helper function: it thinks that we can take a code path where
we first initialize it:
  unsigned segment = XTENSA_MPU_PROBE_B;  // 0x40000000
and then use that value as a shift count:
  } else if (nhits == 1 && (env->sregs[MPUENB] & (1u << segment))) {

In fact this isn't possible, beacuse xtensa_mpu_lookup() is passed
'&segment', and it uses that as an output value, which it will always
set if it returns nonzero.  But the way the code is currently written
is confusing to a human reader as well as to Coverity.

Instead of initializing 'segment' at the top of the function with a
value that's only used in the "nhits == 0" code path, use the
constant value directly in that code path, and don't initialize
segment.  This matches the way we use xtensa_mpu_lookup() in its
other callsites in get_physical_addr_mpu().

Resolves: Coverity CID 1547589

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Message-id: 20240723151454.1396826-1-peter.maydell@linaro.org
2024-07-29 16:58:14 +01:00
Peter Maydell
b69c95e718 target/tricore: Use unsigned types for bitops in helper_eq_b()
Coverity points out that in helper_eq_b() we have an int32_t 'msk'
and we end up shifting into its sign bit. This is OK for QEMU because
we use -fwrapv to give this well defined semantics, but when you look
at what this function is doing it's doing bit operations, so we
should be using an unsigned variable anyway. This also matches the
return type of the function.

Make 'ret' and 'msk' uint32_t.

Resolves: Coverity CID 1547758
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240723151042.1396610-1-peter.maydell@linaro.org
2024-07-29 16:57:27 +01:00
Peter Maydell
f573ac059e target/arm: Ignore SMCR_EL2.LEN and SVCR_EL2.LEN if EL2 is not enabled
When determining the current vector length, the SMCR_EL2.LEN and
SVCR_EL2.LEN settings should only be considered if EL2 is enabled
(compare the pseudocode CurrentSVL and CurrentNSVL which call
EL2Enabled()).

We were checking against ARM_FEATURE_EL2 rather than calling
arm_is_el2_enabled(), which meant that we would look at
SMCR_EL2/SVCR_EL2 when in Secure EL1 or Secure EL0 even if Secure EL2
was not enabled.

Use the correct check in sve_vqm1_for_el_sm().

Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240722172957.1041231-5-peter.maydell@linaro.org
2024-07-29 16:56:46 +01:00
Peter Maydell
76916dfa89 target/arm: Avoid shifts by -1 in tszimm_shr() and tszimm_shl()
The function tszimm_esz() returns a shift amount, or possibly -1 in
certain cases that correspond to unallocated encodings in the
instruction set.  We catch these later in the trans_ functions
(generally with an "a-esz < 0" check), but before we do the
decodetree-generated code will also call tszimm_shr() or tszimm_sl(),
which will use the tszimm_esz() return value as a shift count without
checking that it is not negative, which is undefined behaviour.

Avoid the UB by checking the return value in tszimm_shr() and
tszimm_shl().

Cc: qemu-stable@nongnu.org
Resolves: Coverity CID 1547617, 1547694
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240722172957.1041231-4-peter.maydell@linaro.org
2024-07-29 16:56:46 +01:00
Peter Maydell
ea3f5a90f0 target/arm: Fix UMOPA/UMOPS of 16-bit values
The UMOPA/UMOPS instructions are supposed to multiply unsigned 8 or
16 bit elements and accumulate the products into a 64-bit element.
In the Arm ARM pseudocode, this is done with the usual
infinite-precision signed arithmetic.  However our implementation
doesn't quite get it right, because in the DEF_IMOP_64() macro we do:
  sum += (NTYPE)(n >> 0) * (MTYPE)(m >> 0);

where NTYPE and MTYPE are uint16_t or int16_t.  In the uint16_t case,
the C usual arithmetic conversions mean the values are converted to
"int" type and the multiply is done as a 32-bit multiply.  This means
that if the inputs are, for example, 0xffff and 0xffff then the
result is 0xFFFE0001 as an int, which is then promoted to uint64_t
for the accumulation into sum; this promotion incorrectly sign
extends the multiply.

Avoid the incorrect sign extension by casting to int64_t before
the multiply, so we do the multiply as 64-bit signed arithmetic,
which is a type large enough that the multiply can never
overflow into the sign bit.

(The equivalent 8-bit operations in DEF_IMOP_32() are fine, because
the 8-bit multiplies can never overflow into the sign bit of a
32-bit integer.)

Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2372
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240722172957.1041231-3-peter.maydell@linaro.org
2024-07-29 16:56:46 +01:00
Peter Maydell
56f1c0db92 target/arm: Don't assert for 128-bit tile accesses when SVL is 128
For an instruction which accesses a 128-bit element tile when
the SVL is also 128 (for example MOV z0.Q, p0/M, ZA0H.Q[w0,0]),
we will assert in get_tile_rowcol():

qemu-system-aarch64: ../../tcg/tcg-op.c:926: tcg_gen_deposit_z_i32: Assertion `len > 0' failed.

This happens because we calculate
    len = ctz32(streaming_vec_reg_size(s)) - esz;$
but if the SVL and the element size are the same len is 0, and
the deposit operation asserts.

In this case the ZA storage contains exactly one 128 bit
element ZA tile, and the horizontal or vertical slice is just
that tile. This means that regardless of the index value in
the Ws register, we always access that tile. (In pseudocode terms,
we calculate (index + offset) MOD 1, which is 0.)

Special case the len == 0 case to avoid hitting the assertion
in tcg_gen_deposit_z_i32().

Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240722172957.1041231-2-peter.maydell@linaro.org
2024-07-29 16:56:46 +01:00
Peter Maydell
28fe81f052 hw/misc/bcm2835_property: Reduce scope of variables in mbox push function
In bcm2835_property_mbox_push(), some variables are defined at function scope
but used only in a smaller scope of the function:
 * tag, bufsize, resplen are used only in the body of the while() loop
 * tmp is used only for RPI_FWREQ_SET_POWER_STATE (and is badly named)

Declare these variables in the scope where they're needed, so the code
is easier to read.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240723131029.1159908-5-peter.maydell@linaro.org
2024-07-29 16:55:59 +01:00
Peter Maydell
4b648238b8 hw/misc/bcm2835_property: Restrict scope of start_num, number, otp_row
In the long function bcm2835_property_mbox_push(), the variables
start_num, number and otp_row are used only in the four cases which
access OTP data, and their uses don't overlap with each other.

Make these variables have scope restricted to the cases where they're
used, so it's easier to read each individual case without having to
cross-refer up to the variable declaration at the top of the function
and check whether the variable is also used later in the loop.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240723131029.1159908-4-peter.maydell@linaro.org
2024-07-29 16:55:59 +01:00
Peter Maydell
32f1c201ee hw/misc/bcm2835_property: Avoid overflow in OTP access properties
Coverity points out that in our handling of the property
RPI_FWREQ_SET_CUSTOMER_OTP we have a potential overflow.  This
happens because we read start_num and number from the guest as
unsigned 32 bit integers, but then the variable 'n' we use as a loop
counter as we iterate from start_num to start_num + number is only an
"int".  That means that if the guest passes us a very large start_num
we will interpret it as negative.  This will result in an assertion
failure inside bcm2835_otp_set_row(), which checks that we didn't
pass it an invalid row number.

A similar issue applies to all the properties for accessing OTP rows
where we are iterating through with a start and length read from the
guest.

Use uint32_t for the loop counter to avoid this problem. Because in
all cases 'n' is only used as a loop counter, we can do this as
part of the for(), restricting its scope to exactly where we need it.

Resolves: Coverity CID 1549401
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240723131029.1159908-3-peter.maydell@linaro.org
2024-07-29 16:55:59 +01:00
Peter Maydell
0892fffc2a hw/misc/bcm2835_property: Fix handling of FRAMEBUFFER_SET_PALETTE
The documentation of the "Set palette" mailbox property at
https://github.com/raspberrypi/firmware/wiki/Mailbox-property-interface#set-palette
says it has the form:

    Length: 24..1032
    Value:
        u32: offset: first palette index to set (0-255)
        u32: length: number of palette entries to set (1-256)
        u32...: RGBA palette values (offset to offset+length-1)

We get this wrong in a couple of ways:
 * we aren't checking the offset and length are in range, so the guest
   can make us spin for a long time by providing a large length
 * the bounds check on our loop is wrong: we should iterate through
   'length' palette entries, not 'length - offset' entries

Fix the loop to implement the bounds checks and get the loop
condition right. In the process, make the variables local to
this switch case, rather than function-global, so it's clearer
what type they are when reading the code.

Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240723131029.1159908-2-peter.maydell@linaro.org
2024-07-29 16:55:59 +01:00
Akihiko Odaki
05b8d72491 hvf: arm: Do not advance PC when raising an exception
This is identical with commit 30a1690f24 ("hvf: arm: Do not advance
PC when raising an exception") but for writes instead of reads.

Fixes: a2260983c6 ("hvf: arm: Add support for GICv3")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-29 16:06:01 +01:00
Akihiko Odaki
e6fd3192ed hvf: arm: Properly disable PMU
Setting pmu property used to have no effect for hvf so fix it.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-29 16:05:49 +01:00
Akihiko Odaki
e9e640148c hvf: arm: Raise an exception for sysreg by default
Any sysreg access results in an exception unless defined otherwise so
we should raise an exception by default.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-29 16:05:42 +01:00
Akihiko Odaki
0d2aac4ab1 target/arm/kvm: Do not silently remove PMU
kvm_arch_init_vcpu() used to remove PMU when it is not available even
if the CPU model needs one. It is semantically incorrect, and may
continue execution on a misbehaving host that advertises a CPU model
while lacking its PMU. Keep the PMU when the CPU model needs one, and
let kvm_arm_vcpu_init() fail if the KVM implementation mismatches with
our expectation.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-29 16:02:25 +01:00
Akihiko Odaki
613d0b8ebb target/arm/kvm: Set PMU for host only when available
target/arm/kvm.c checked PMU availability but unconditionally set the
PMU feature flag for the host CPU model, which is confusing. Set the
feature flag only when available.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-29 14:50:25 +01:00
Mostafa Saleh
8deba2f36e hw/arm/smmuv3: Assert input to oas2bits() is valid
Coverity has spotted a possible problem with the OAS handling
(CID 1558464), where the error return of oas2bits() -1 is not
checked, which can cause an overflow in oas value.

oas2bits() is only called with valid inputs, harden the function
to assert that.

Reported-By: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20240722103531.2377348-1-smostafa@google.com
Link: https://lore.kernel.org/qemu-devel/CAFEAcA-H=n-3mHC+eL6YjfL1m+x+b+Fk3mkgZbN74WNxifFVow@mail.gmail.com/
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-29 13:34:18 +01:00
Frederik van Hövell
546d574b11 hw/char/bcm2835_aux: Fix assert when receive FIFO fills up
When a bare-metal application on the raspi3 board reads the
AUX_MU_STAT_REG MMIO register while the device's buffer is
at full receive FIFO capacity
(i.e. `s->read_count == BCM2835_AUX_RX_FIFO_LEN`) the
assertion `assert(s->read_count < BCM2835_AUX_RX_FIFO_LEN)`
fails.

Reported-by: Cryptjar <cryptjar@junk.studio>
Suggested-by: Cryptjar <cryptjar@junk.studio>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/459
Signed-off-by: Frederik van Hövell <frederik@fvhovell.nl>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
[PMM: commit message tweaks]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-29 13:34:18 +01:00
Markus Armbruster
bc2e34e343 qapi/machine: Belatedly document target loongarch64 is since 7.1
Fixes: a8a506c390 (hw/loongarch: Add support loongson3 virt machine type.)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240718141001.3077709-1-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
2024-07-29 07:29:47 +02:00
Stefano Garzarella
657ea58ba3 qapi/qom: make some QOM properties depend on the build settings
Some QOM properties are associated with ObjectTypes that already
depend on CONFIG_* switches. So to avoid generating dead code,
let's also make the definition of those properties dependent on
the corresponding CONFIG_*.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-ID: <20240604135931.311709-1-sgarzare@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Make SecretKeyringProperties conditional, too]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2024-07-29 07:29:47 +02:00
Richard Henderson
83340193b9 target/rx: Use target_ulong for address in LI
Using int32_t meant that the address was sign-extended to uint64_t
when passing to translator_ld*, triggering an assert.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2453
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Thomas Huth <thuth@redhat.com>
2024-07-28 14:13:05 +10:00
Richard Henderson
93b799fafd fixes
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Merge tag 'pull-ppc-for-9.1-2-20240726-1' of https://gitlab.com/npiggin/qemu into staging

fixes

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* tag 'pull-ppc-for-9.1-2-20240726-1' of https://gitlab.com/npiggin/qemu: (96 commits)
  target/ppc: Remove includes from mmu-book3s-v3.h
  target/ppc/mmu-radix64: Remove externally unused parts from header
  target/ppc: Unexport some functions from mmu-book3s-v3.h
  target/ppc/mmu-hash32.c: Move get_pteg_offset32() to the header
  target/ppc/mmu-hash32.c: Inline and remove ppc_hash32_pte_raddr()
  target/ppc/mmu_common.c: Remove mmu_ctx_t
  target/ppc/mmu_common.c: Stop using ctx in get_bat_6xx_tlb()
  target/ppc: Remove bat_size_prot()
  target/ppc/mmu_common.c: Use defines instead of numeric constants
  target/ppc/mmu_common.c: Rename function parameter
  target/ppc/mmu_common.c: Stop using ctx in ppc6xx_tlb_check()
  target/ppc/mmu_common.c: Remove key field from mmu_ctx_t
  target/ppc/mmu_common.c: Init variable in function that relies on it
  target/ppc/mmu-hash32.c: Inline and remove ppc_hash32_pte_prot()
  target/ppc: Add function to get protection key for hash32 MMU
  target/ppc/mmu_common.c: Remove ptem field from mmu_ctx_t
  target/ppc/mmu_common.c: Inline and remove ppc6xx_tlb_pte_check()
  target/ppc/mmu_common.c: Simplify a switch statement
  target/ppc/mmu_common.c: Remove single use local variable
  target/ppc/mmu_common.c: Convert local variable to bool
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-07-26 15:10:45 +10:00
BALATON Zoltan
d741ecffd2 target/ppc: Remove includes from mmu-book3s-v3.h
Drop includes from header that is not needed by the header itself and
only include them from C files that really need it.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Acked-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2024-07-26 09:51:34 +10:00
BALATON Zoltan
b864074ce0 target/ppc/mmu-radix64: Remove externally unused parts from header
Move the parts not needed outside of mmu-radix64.c from the header to
the C file to leave only parts in the header that need to be exported.
Also drop unneded include of this header.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Acked-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2024-07-26 09:51:34 +10:00
BALATON Zoltan
14a43ab333 target/ppc: Unexport some functions from mmu-book3s-v3.h
The ppc_hash64_hpt_base() and ppc_hash64_hpt_mask() functions are
mostly used by mmu-hash64.c only but there is one call to
ppc_hash64_hpt_mask() in hw/ppc/spapr_vhyp_mmu.c.in a helper function
that can be moved to mmu-hash64.c which allows these functions to be
removed from the header.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2024-07-26 09:51:34 +10:00
BALATON Zoltan
9eb0530033 target/ppc/mmu-hash32.c: Move get_pteg_offset32() to the header
This function is a simple shared function, move it to other similar
static inline functions in the header.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2024-07-26 09:51:34 +10:00
BALATON Zoltan
51993bef12 target/ppc/mmu-hash32.c: Inline and remove ppc_hash32_pte_raddr()
This function is used only once and does not add more clarity than
doing it inline.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2024-07-26 09:51:34 +10:00
BALATON Zoltan
bfb5a5eee5 target/ppc/mmu_common.c: Remove mmu_ctx_t
Completely get rid of mmu_ctx_t after converting the remaining
functions to pass raddr and prot without the context struct.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2024-07-26 09:51:34 +10:00
BALATON Zoltan
7e590cf616 target/ppc/mmu_common.c: Stop using ctx in get_bat_6xx_tlb()
Pass raddr and prot in function parameters instead

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2024-07-26 09:51:34 +10:00
BALATON Zoltan
d323338629 target/ppc: Remove bat_size_prot()
There is already a hash32_bat_prot() function that does most if this
and the rest can be inlined. Export hash32_bat_prot() and rename it to
ppc_hash32_bat_prot() to match other functions and use it in
get_bat_6xx_tlb().

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2024-07-26 09:51:34 +10:00
BALATON Zoltan
6ca35e8763 target/ppc/mmu_common.c: Use defines instead of numeric constants
Replace some BAT related constants with defines from mmu-hash32.h

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2024-07-26 09:51:34 +10:00
BALATON Zoltan
68bf3a7bbc target/ppc/mmu_common.c: Rename function parameter
Rename parameter of get_bat_6xx_tlb() from virtual to eaddr to match
other functions.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2024-07-26 09:51:34 +10:00
BALATON Zoltan
aa781c102a target/ppc/mmu_common.c: Stop using ctx in ppc6xx_tlb_check()
Pass raddr and prot in function parameters instead.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2024-07-26 09:51:34 +10:00
BALATON Zoltan
da5c1d20e9 target/ppc/mmu_common.c: Remove key field from mmu_ctx_t
Pass it as a function parameter and remove it from mmu_ctx_t.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2024-07-26 09:51:34 +10:00
BALATON Zoltan
fa7f2cb91b target/ppc/mmu_common.c: Init variable in function that relies on it
The ppc6xx_tlb_check() relies on the caller to initialise raddr field
in ctx. Move this init from the only caller into the function.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2024-07-26 09:51:34 +10:00
BALATON Zoltan
620ba617df target/ppc/mmu-hash32.c: Inline and remove ppc_hash32_pte_prot()
This is used only once and can be inlined.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2024-07-26 09:51:34 +10:00