Merge branch 'riscv/queue' into 'master'

riscv: Add EFI support and SBI base ext tests

See merge request kvm-unit-tests/kvm-unit-tests!54

treewide: lib/stack: Fix backtrace

We should never pass the result of __builtin_frame_address(0) to
another function since the compiler is within its rights to pop the
frame to which it points befor

treewide: lib/stack: Fix backtrace

We should never pass the result of __builtin_frame_address(0) to
another function since the compiler is within its rights to pop the
frame to which it points before making the function call, as may be
done for tail calls. Nobody has complained about backtrace(), so
likely all compilations have been inlining backtrace_frame(), not
dropping the frame on the tail call, or nobody is looking at traces.
However, for riscv, when built for EFI, it does drop the frame on the
tail call, and it was noticed. Preemptively fix backtrace() for all
architectures.

Fixes: 52266791750d ("lib: backtrace printing")
Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Andrew Jones <andrew.jones@linux.dev>

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Merge branch 's390x-next-2023-02' into 'master'

s390x: storage key migration tests, snippets and linker cleanups

See merge request kvm-unit-tests/kvm-unit-tests!40

s390x: Clear first stack frame and end backtrace early

When setting the first stack frame to 0, we can check for a 0
backchain pointer when doing backtraces to know when to stop.

Signed-off-by: Jan

s390x: Clear first stack frame and end backtrace early

When setting the first stack frame to 0, we can check for a 0
backchain pointer when doing backtraces to know when to stop.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Nico Boehr <nrb@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20230112154548.163021-7-frankja@linux.ibm.com
Message-Id: <20230112154548.163021-7-frankja@linux.ibm.com>

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Merge branch 's390x-pull-2021-16-08' into 'master'

s390x-pull-2021-16-08

See merge request kvm-unit-tests/kvm-unit-tests!15

s390x: Fix my mail address in the headers

I used the wrong one once and then copied it over...

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm

s390x: Fix my mail address in the headers

I used the wrong one once and then copied it over...

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>

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Merge branch 's390x-pull-2021-08-03' of https://gitlab.com/frankja/kvm-unit-tests.git into 'master'

* IO tests PV compatibility (Pierre)
* Backtrace support (Janosch)
* mvpg test (Claudio)
* Fixups

Merge branch 's390x-pull-2021-08-03' of https://gitlab.com/frankja/kvm-unit-tests.git into 'master'

* IO tests PV compatibility (Pierre)
* Backtrace support (Janosch)
* mvpg test (Claudio)
* Fixups (Thomas)

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s390x: Provide preliminary backtrace support

After the stack changes we can finally use -mbackchain and have a
working backtrace.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: T

s390x: Provide preliminary backtrace support

After the stack changes we can finally use -mbackchain and have a
working backtrace.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>

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Merge tag 's390x-2021-20-01' of https://gitlab.com/frankja/kvm-unit-tests into HEAD

* Moved to SPDX license identifiers and cleaning up license
* Added test_bit(_inv)() & SCLP feature bit checking
*

Merge tag 's390x-2021-20-01' of https://gitlab.com/frankja/kvm-unit-tests into HEAD

* Moved to SPDX license identifiers and cleaning up license
* Added test_bit(_inv)() & SCLP feature bit checking
* Added first SIE lib and test for nesting tests
* Added diag318 emulation test
* Small UV fix

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s390x: lib: Move to GPL 2 and SPDX license identifiers

In the past we had some issues when developers wanted to use code
snippets or constants from the kernel in a test or in the library. To
remedy

s390x: lib: Move to GPL 2 and SPDX license identifiers

In the past we had some issues when developers wanted to use code
snippets or constants from the kernel in a test or in the library. To
remedy that the s390x maintainers decided to move all files to GPL 2
(if possible).

At the same time let's move to SPDX identifiers as they are much nicer
to read.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Pierre Morel <pmorel@linux.ibm.com>

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s390x: initial infrastructure

This adds the very basic infrastructure for s390x. As we compile for
z900, also QEMU tcg can be used.

To cross compile:

$./configure --arch=s390x --cross-prefix=/usr/

s390x: initial infrastructure

This adds the very basic infrastructure for s390x. As we compile for
z900, also QEMU tcg can be used.

To cross compile:

$./configure --arch=s390x --cross-prefix=/usr/bin/s390x-linux-gnu-
$ make

Please note that for now, nothing will be compiled, as there is no test
to compile. A basic self test will be added in the following patches.

smp and stack unwinding is not supported yet. sclp console output will
be added in the following patches.

Parts based on a prototype by Thomas Huth.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170522085702.17856-2-david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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