As in page_get_flags, we need to try again with the mmap
lock held if we fail a page lookup.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Because we allow lockless lookups, we have to be careful
when it is freed. Use rcu to delay the free until safe.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
When called from syscall(), we are not within a TB and pc == 0.
We can skip the check for invalidating the current TB.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This eliminates an ifdef for TCI, and will be required for
expanding the call for TCGv_i128.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
There is only one use, and BLR is perhaps even more
self-documentary than CALLR.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Instead of requiring a separate hash table lookup,
put a pointer to the CIF into TCGHelperInfo.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221111074101.2069454-27-richard.henderson@linaro.org>
[PMD: Split from bigger patch]
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221122180804.938-4-philmd@linaro.org>
In the unlikely case of invalid typecode mask, the function
will abort instead of returning a NULL pointer.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221111074101.2069454-27-richard.henderson@linaro.org>
[PMD: Split from bigger patch]
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221122180804.938-2-philmd@linaro.org>
Pre-compute the function call layout for each helper at startup.
Drop TCG_CALL_DUMMY_ARG, as we no longer need to leave gaps
in the op->args[] array. This allows several places to stop
checking for NULL TCGTemp, to which TCG_CALL_DUMMY_ARG mapped.
For tcg_gen_callN, loop over the arguments once. Allocate the TCGOp
for the call early but delay emitting it, collecting arguments first.
This allows the argument processing loop to emit code for extensions
and have them sequenced before the call.
For tcg_reg_alloc_call, loop over the arguments in reverse order,
which allows stack slots to be filled first naturally.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We will shortly have the possibility of more that two outputs,
though only for calls (for which preferences are moot). Avoid
direct references to op->output_pref[] when possible.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We have been allocating a worst case number of arguments
to support calls. Instead, allow the size to vary.
By default leave space for 4 args, to maximize reuse,
but allow calls to increase the number of args to 32.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
[PMD: Split patch in two]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221218211832.73312-3-philmd@linaro.org>
In order to have variable size allocated TCGOp, pass the number
of arguments we use (and would allocate) up to tcg_op_alloc().
This alters tcg_emit_op(), tcg_op_insert_before() and
tcg_op_insert_after() prototypes.
In tcg_op_alloc() ensure the number of arguments is in range.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
[PMD: Extracted from bigger patch]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221218211832.73312-2-philmd@linaro.org>
Better to re-use the existing function for copying ops.
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We copied all of the arguments in copy_op_nocheck.
We only need to replace the one argument that we change.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The function pointer is immediately after the output and input
operands; no need to search.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Change 32-bit tci TCG_TARGET_CALL_ARG_I32 to TCG_CALL_ARG_EVEN, to
force 32-bit values to be aligned to 64-bit. With a small reorg
to the argument processing loop, this neatly replaces an ifdef for
CONFIG_TCG_INTERPRETER.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
For 64-bit hosts that had TCG_TARGET_EXTEND_ARGS, set
TCG_TARGET_CALL_ARG_I32 to TCG_CALL_ARG_EXTEND.
Otherwise, use TCG_CALL_ARG_NORMAL.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
For 32-bit hosts when TCG_TARGET_CALL_ALIGN_ARGS was set, use
TCG_CALL_ARG_EVEN. For 64-bit hosts, TCG_TARGET_CALL_ALIGN_ARGS
was silently ignored, so always use TCG_CALL_ARG_NORMAL.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Prepare to replace a bunch of separate ifdefs with a
consistent way to describe the ABI of a function call.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Add a helper function for computing the size of a type.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The count is not itself an enumerator. Move it outside to
prevent the compiler from considering it with -Wswitch-enum.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Allocate the first of a pair at the lower address, and the
second of a pair at the higher address. This will make it
easier to find the beginning of the larger memory block.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The first thing that temp_sync does is check mem_coherent,
so there's no need for the caller to do so.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Record the location of a TCGTemp within a larger object.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Move the error-generating fallback from tcg-op.c, and
replace "_link_error" with modern QEMU_ERROR markup.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use the official extend/extract functions instead of routines
that will shortly be internal to tcg.
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
While we initialize this value in cpu_common_reset, that
isn't called during startup, so set it as well in init.
This fixes -singlestep versus the very first TB.
Fixes: 04f5b647ed ("accel/tcg: Handle -singlestep in curr_cflags")
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
"Host Memory Backends" and "Memory devices" queue ("mem"):
- virtio-mem fixes
- Use new MPOL_PREFERRED_MANY mbind() policy for memory backends if
possible
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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>
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>
Richard Henderson