Commit Graph

97250 Commits

Author SHA1 Message Date
Alberto Faria
1d39c7098b block: Implement bdrv_{pread,pwrite,pwrite_zeroes}() using generated_co_wrapper
bdrv_{pread,pwrite}() now return -EIO instead of -EINVAL when 'bytes' is
negative, making them consistent with bdrv_{preadv,pwritev}() and
bdrv_co_{pread,pwrite,preadv,pwritev}().

bdrv_pwrite_zeroes() now also calls trace_bdrv_co_pwrite_zeroes() and
clears the BDRV_REQ_MAY_UNMAP flag when appropriate, which it didn't
previously.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Message-Id: <20220609152744.3891847-8-afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
2022-07-12 12:14:56 +02:00
Alberto Faria
c1458c66b2 block: Make 'bytes' param of bdrv_co_{pread,pwrite,preadv,pwritev}() an int64_t
For consistency with other I/O functions, and in preparation to
implement bdrv_{pread,pwrite}() using generated_co_wrapper.

unsigned int fits in int64_t, so all callers remain correct.

bdrv_check_request32() is called further down the stack and causes -EIO
to be returned if 'bytes' is negative or greater than
BDRV_REQUEST_MAX_BYTES, which in turns never exceeds SIZE_MAX.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Message-Id: <20220609152744.3891847-7-afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
2022-07-12 12:14:56 +02:00
Alberto Faria
ca71a64ee5 block: Make bdrv_co_pwrite() take a const buffer
It does not mutate the buffer.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220609152744.3891847-6-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
2022-07-12 12:14:56 +02:00
Alberto Faria
757dda54b4 crypto: Make block callbacks return 0 on success
They currently return the value of their headerlen/buflen parameter on
success. Returning 0 instead makes it clear that short reads/writes are
not possible.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220609152744.3891847-5-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
2022-07-12 12:14:55 +02:00
Alberto Faria
353a5d84b2 block: Make bdrv_{pread,pwrite}() return 0 on success
They currently return the value of their 'bytes' parameter on success.

Make them return 0 instead, for consistency with other I/O functions and
in preparation to implement them using generated_co_wrapper. This also
makes it clear that short reads/writes are not possible.

The few callers that rely on the previous behavior are adjusted
accordingly by hand.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220609152744.3891847-4-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
2022-07-12 12:14:55 +02:00
Alberto Faria
32cc71def9 block: Change bdrv_{pread,pwrite,pwrite_sync}() param order
Swap 'buf' and 'bytes' around for consistency with
bdrv_co_{pread,pwrite}(), and in preparation to implement these
functions using generated_co_wrapper.

Callers were updated using this Coccinelle script:

    @@ expression child, offset, buf, bytes, flags; @@
    - bdrv_pread(child, offset, buf, bytes, flags)
    + bdrv_pread(child, offset, bytes, buf, flags)

    @@ expression child, offset, buf, bytes, flags; @@
    - bdrv_pwrite(child, offset, buf, bytes, flags)
    + bdrv_pwrite(child, offset, bytes, buf, flags)

    @@ expression child, offset, buf, bytes, flags; @@
    - bdrv_pwrite_sync(child, offset, buf, bytes, flags)
    + bdrv_pwrite_sync(child, offset, bytes, buf, flags)

Resulting overly-long lines were then fixed by hand.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-Id: <20220609152744.3891847-3-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
2022-07-12 12:14:55 +02:00
Alberto Faria
53fb7844f0 block: Add a 'flags' param to bdrv_{pread,pwrite,pwrite_sync}()
For consistency with other I/O functions, and in preparation to
implement them using generated_co_wrapper.

Callers were updated using this Coccinelle script:

    @@ expression child, offset, buf, bytes; @@
    - bdrv_pread(child, offset, buf, bytes)
    + bdrv_pread(child, offset, buf, bytes, 0)

    @@ expression child, offset, buf, bytes; @@
    - bdrv_pwrite(child, offset, buf, bytes)
    + bdrv_pwrite(child, offset, buf, bytes, 0)

    @@ expression child, offset, buf, bytes; @@
    - bdrv_pwrite_sync(child, offset, buf, bytes)
    + bdrv_pwrite_sync(child, offset, buf, bytes, 0)

Resulting overly-long lines were then fixed by hand.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-Id: <20220609152744.3891847-2-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
2022-07-12 12:14:55 +02:00
Vladimir Sementsov-Ogievskiy
9548cbefff iotests/copy-before-write: specify required_fmts
Declare that we need copy-before-write filter to avoid failure when
filter is not whitelisted.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20220706170834.242277-1-vsementsov@yandex-team.ru>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-12 13:21:02 +05:30
Vladimir Sementsov-Ogievskiy
05b47eec90 iotests: fix copy-before-write for macOS and FreeBSD
strerror() represents ETIMEDOUT a bit different in Linux and macOS /
FreeBSD. Let's support the latter too.

Fixes: 9d05a87b77 ("iotests: copy-before-write: add cases for cbw-timeout option")
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705153708.186418-1-vsementsov@yandex-team.ru>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-12 13:21:02 +05:30
Richard Henderson
f085ba292b gitlab-ci/cirrus: Update freebsd to python 3.9 packages
FreeBSD has stopped shipping python 3.8, causing our cirrus
builds to fail immediately.  Upstream lcitool has an update
to address this, but has also reorganized its source tree so
additional changes are required for 'make lcitool-update'.

In the meantime, fix the build.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-12 13:21:02 +05:30
Richard Henderson
08c8a31214 Fix for duplicate tlb check on unaligned access.
Fix for w^x code gen buffer mapping.
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Merge tag 'pull-tcg-20220712' of https://gitlab.com/rth7680/qemu into staging

Fix for duplicate tlb check on unaligned access.
Fix for w^x code gen buffer mapping.

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# gpg: Signature made Tue 12 Jul 2022 11:48:51 AM +0530
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
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# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]

* tag 'pull-tcg-20220712' of https://gitlab.com/rth7680/qemu:
  accel/tcg: Fix unaligned stores to s390x low-address-protected lowcore
  tcg: Fix returned type in alloc_code_gen_buffer_splitwx_memfd()

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-12 11:52:11 +05:30
Ilya Leoshkevich
b0f650f047 accel/tcg: Fix unaligned stores to s390x low-address-protected lowcore
If low-address-protection is active, unaligned stores to non-protected
parts of lowcore lead to protection exceptions. The reason is that in
such cases tlb_fill() call in store_helper_unaligned() covers
[0, addr + size) range, which contains the protected portion of
lowcore. This range is too large.

The most straightforward fix would be to make sure we stay within the
original [addr, addr + size) range. However, if an unaligned access
affects a single page, we don't need to call tlb_fill() in
store_helper_unaligned() at all, since it would be identical to
the previous tlb_fill() call in store_helper(), and therefore a no-op.
If an unaligned access covers multiple pages, this situation does not
occur.

Therefore simply skip TLB handling in store_helper_unaligned() if we
are dealing with a single page.

Fixes: 2bcf018340 ("s390x/tcg: low-address protection support")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20220711185640.3558813-2-iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-12 10:43:33 +05:30
Shaobo Song
ba8924113c tcg: Fix returned type in alloc_code_gen_buffer_splitwx_memfd()
This fixes a bug in POSIX-compliant environments. Since we had allocated
a buffer named 'tcg-jit' with read-write access protections we need a int
type to combine these access flags and return it, whereas we had inexplicably
return a bool type. It may cause an unnecessary protection change in
tcg_region_init().

Cc: qemu-stable@nongnu.org
Fixes: 7be9ebcf92 ("tcg: Return the map protection from alloc_code_gen_buffer")
Signed-off-by: Shaobo Song <shnusongshaobo@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220624150216.3627-1-shnusongshaobo@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-12 10:30:10 +05:30
Richard Henderson
9fed1bca6b target-arm:
* Implement SME emulation, for both system and linux-user
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Merge tag 'pull-target-arm-20220711' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm:
 * Implement SME emulation, for both system and linux-user

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# gpg: Signature made Mon 11 Jul 2022 07:27:03 PM +0530
# 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]

* tag 'pull-target-arm-20220711' of https://git.linaro.org/people/pmaydell/qemu-arm: (45 commits)
  linux-user/aarch64: Add SME related hwcap entries
  target/arm: Enable SME for user-only
  target/arm: Only set ZEN in reset if SVE present
  linux-user/aarch64: Implement PR_SME_GET_VL, PR_SME_SET_VL
  linux-user: Rename sve prctls
  linux-user/aarch64: Implement SME signal handling
  linux-user/aarch64: Move sve record checks into restore
  linux-user/aarch64: Verify extra record lock succeeded
  linux-user/aarch64: Do not allow duplicate or short sve records
  linux-user/aarch64: Tidy target_restore_sigframe error return
  linux-user/aarch64: Add SM bit to SVE signal context
  linux-user/aarch64: Reset PSTATE.SM on syscalls
  linux-user/aarch64: Clear tpidr2_el0 if CLONE_SETTLS
  target/arm: Enable SME for -cpu max
  target/arm: Reset streaming sve state on exception boundaries
  target/arm: Implement SCLAMP, UCLAMP
  target/arm: Implement REVD
  target/arm: Implement PSEL
  target/arm: Implement SME integer outer product
  target/arm: Implement FMOPA, FMOPS (widening)
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-11 22:02:09 +05:30
Richard Henderson
f9982ceaf2 linux-user/aarch64: Add SME related hwcap entries
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-46-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:52 +01:00
Richard Henderson
78011586b9 target/arm: Enable SME for user-only
Enable SME, TPIDR2_EL0, and FA64 if supported by the cpu.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-45-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:52 +01:00
Richard Henderson
4630353559 target/arm: Only set ZEN in reset if SVE present
There's no reason to set CPACR_EL1.ZEN if SVE disabled.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-44-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:52 +01:00
Richard Henderson
24d87c187c linux-user/aarch64: Implement PR_SME_GET_VL, PR_SME_SET_VL
These prctl set the Streaming SVE vector length, which may
be completely different from the Normal SVE vector length.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-43-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:52 +01:00
Richard Henderson
fd72f5d0ba linux-user: Rename sve prctls
Add "sve" to the sve prctl functions, to distinguish
them from the coming "sme" prctls with similar names.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-42-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:52 +01:00
Richard Henderson
78fd56ba13 linux-user/aarch64: Implement SME signal handling
Set the SM bit in the SVE record on signal delivery, create the ZA record.
Restore SM and ZA state according to the records present on return.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-41-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:52 +01:00
Richard Henderson
d3b4f7170f linux-user/aarch64: Move sve record checks into restore
Move the checks out of the parsing loop and into the
restore function.  This more closely mirrors the code
structure in the kernel, and is slightly clearer.

Reject rather than silently skip incorrect VL and SVE record sizes,
bringing our checks in to line with those the kernel does.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-40-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:51 +01:00
Richard Henderson
8e5e19ee41 linux-user/aarch64: Verify extra record lock succeeded
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-39-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:51 +01:00
Richard Henderson
affb1a50b9 linux-user/aarch64: Do not allow duplicate or short sve records
In parse_user_sigframe, the kernel rejects duplicate sve records,
or records that are smaller than the header.  We were silently
allowing these cases to pass, dropping the record.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-38-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:51 +01:00
Richard Henderson
5726597c3b linux-user/aarch64: Tidy target_restore_sigframe error return
Fold the return value setting into the goto, so each
point of failure need not do both.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-37-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:51 +01:00
Richard Henderson
4a29c36316 linux-user/aarch64: Add SM bit to SVE signal context
Make sure to zero the currently reserved fields.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-36-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:51 +01:00
Richard Henderson
2a98579711 linux-user/aarch64: Reset PSTATE.SM on syscalls
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-35-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:51 +01:00
Richard Henderson
95aa4fdd58 linux-user/aarch64: Clear tpidr2_el0 if CLONE_SETTLS
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-34-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:51 +01:00
Richard Henderson
78cb977666 target/arm: Enable SME for -cpu max
Note that SME remains effectively disabled for user-only,
because we do not yet set CPACR_EL1.SMEN.  This needs to
wait until the kernel ABI is implemented.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-33-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:51 +01:00
Richard Henderson
04fbce7639 target/arm: Reset streaming sve state on exception boundaries
We can handle both exception entry and exception return by
hooking into aarch64_sve_change_el.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-32-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:51 +01:00
Richard Henderson
6b5a3bdf3a target/arm: Implement SCLAMP, UCLAMP
This is an SVE instruction that operates using the SVE vector
length but that it is present only if SME is implemented.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-31-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:51 +01:00
Richard Henderson
7dbfafc157 target/arm: Implement REVD
This is an SVE instruction that operates using the SVE vector
length but that it is present only if SME is implemented.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-30-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:51 +01:00
Richard Henderson
598ab0b24c target/arm: Implement PSEL
This is an SVE instruction that operates using the SVE vector
length but that it is present only if SME is implemented.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-29-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:51 +01:00
Richard Henderson
23a5e3859f target/arm: Implement SME integer outer product
This is SMOPA, SUMOPA, USMOPA_s, UMOPA, for both Int8 and Int16.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-28-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:51 +01:00
Richard Henderson
3916841ac7 target/arm: Implement FMOPA, FMOPS (widening)
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-27-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:47 +01:00
Richard Henderson
920f640d39 target/arm: Implement BFMOPA, BFMOPS
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-26-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:32 +01:00
Richard Henderson
558e956c71 target/arm: Implement FMOPA, FMOPS (non-widening)
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-25-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:19:35 +01:00
Richard Henderson
bc4420d9bd target/arm: Implement SME ADDHA, ADDVA
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-24-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:19:35 +01:00
Richard Henderson
4c46a5f12c target/arm: Implement SME LDR, STR
We can reuse the SVE functions for LDR and STR, passing in the
base of the ZA vector and a zero offset.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-23-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:19:35 +01:00
Richard Henderson
8713f73e53 target/arm: Export unpredicated ld/st from translate-sve.c
Add a TCGv_ptr base argument, which will be cpu_env for SVE.
We will reuse this for SME save and restore array insns.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-22-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:19:35 +01:00
Richard Henderson
7390e0e9ab target/arm: Implement SME LD1, ST1
We cannot reuse the SVE functions for LD[1-4] and ST[1-4],
because those functions accept only a Zreg register number.
For SME, we want to pass a pointer into ZA storage.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-21-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:19:35 +01:00
Richard Henderson
e9ad3ef19e target/arm: Implement SME MOVA
We can reuse the SVE functions for implementing moves to/from
horizontal tile slices, but we need new ones for moves to/from
vertical tile slices.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-20-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:19:35 +01:00
Richard Henderson
ad939afbfa target/arm: Implement SME ZERO
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-19-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:19:35 +01:00
Richard Henderson
0d93576034 target/arm: Implement SME RDSVL, ADDSVL, ADDSPL
These SME instructions are nominally within the SVE decode space,
so we add them to sve.decode and translate-sve.c.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-18-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:19:35 +01:00
Richard Henderson
285b1d5fce target/arm: Handle SME in sve_access_check
The pseudocode for CheckSVEEnabled gains a check for Streaming
SVE mode, and for SME present but SVE absent.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-17-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:19:35 +01:00
Richard Henderson
3d74825f4d target/arm: Add SME enablement checks
These functions will be used to verify that the cpu
is in the correct state for a given instruction.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-16-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:19:35 +01:00
Richard Henderson
3ebc26e79d target/arm: Mark LD1RO as non-streaming
Mark these as a non-streaming instructions, which should trap
if full a64 support is not enabled in streaming mode.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-15-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:19:35 +01:00
Richard Henderson
ccb1cefc38 target/arm: Mark LDFF1 and LDNF1 as non-streaming
Mark these as a non-streaming instructions, which should trap
if full a64 support is not enabled in streaming mode.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-14-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:19:35 +01:00
Richard Henderson
e1d1a64326 target/arm: Mark gather prefetch as non-streaming
Mark these as a non-streaming instructions, which should trap if full
a64 support is not enabled in streaming mode.  In this case, introduce
PRF_ns (prefetch non-streaming) to handle the checks.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-13-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:19:35 +01:00
Richard Henderson
765ff97df3 target/arm: Mark gather/scatter load/store as non-streaming
Mark these as a non-streaming instructions, which should trap
if full a64 support is not enabled in streaming mode.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-12-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:19:35 +01:00
Richard Henderson
46feb36151 target/arm: Mark string/histo/crypto as non-streaming
Mark these as non-streaming instructions, which should trap
if full a64 support is not enabled in streaming mode.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-11-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:19:35 +01:00