Commit Graph

93646 Commits

Author SHA1 Message Date
Alex Bennée 8dcb404bff tests/qtest: enable more vhost-user tests by default
If this starts causing failures again we should probably fix that.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20220204204335.1689602-3-alex.bennee@linaro.org>
2022-02-09 12:08:41 +00:00
Alex Bennée 135e6a09a9 tests/Makefile.include: clean-up old code
This is no longer needed since a2ce7dbd91 ("meson: convert tests/qtest
to meson", 2020-08-21)

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220204204335.1689602-2-alex.bennee@linaro.org>
2022-02-09 12:08:41 +00:00
Alexey Kardashevskiy 10717c26db spapr/vof: Install rom and nvram binaries
This installs VOF-related binaries (the firmware and the preformatted
NVRAM) as those were left out when the VOF was submitted initially.

Fixes: fc8c745d50 ("spapr: Implement Open Firmware client interface")
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20220208103751.1587902-1-aik@ozlabs.ru>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Cornelia Huck 96a46def58 docs: rstfy confidential guest documentation
Also rstfy the documentation for AMD SEV, and link it.

The documentation for PEF had been merged into the pseries doc,
fix the reference.

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20220204161251.241877-1-cohuck@redhat.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Víctor Colombo 205eb5a89e target/ppc: Change VSX instructions behavior to fill with zeros
ISA v3.1 changed some VSX instructions behavior by changing what the
other words/doubleword in the result should contain when the result is
only one word/doubleword. e.g. xsmaxdp operates on doubleword 0 and
saves the result also in doubleword 0.
Before, the second doubleword result was undefined according to the
ISA, but now it's stated that it should be zeroed.

Even tough the result was undefined before, hardware implementing these
instructions already filled these fields with 0s. Changing every ISA
version in QEMU to this behavior makes the results match what happens
in hardware.

Signed-off-by: Víctor Colombo <victor.colombo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220204181944.65063-1-victor.colombo@eldorado.org.br>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Fabiano Rosas 10895ab6f7 target/ppc: books: Remove excp_model argument from ppc_excp_apply_ail
We don't really need to check for exception model while applying
AIL. We can check the lpcr_mask for the presence of
LPCR_AIL/LPCR_HAIL.

This removes one more instance of passing the exception model ID
around.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220207183036.1507882-5-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Fabiano Rosas fce9fbafe9 target/ppc: Assert if MSR bits differ from msr_mask during exceptions
We currently abort QEMU during the dispatch of an interrupt if we try
to set MSR_HV without having MSR_HVB in the msr_mask. I think we
should verify this for all MSR bits. There is no reason to ever have a
MSR bit set if the corresponding bit is not set in that CPU's
msr_mask.

Note that this is not about the emulated code setting reserved
bits. We clear the new_msr when starting to dispatch an exception, so
if we end up with bits not present in the msr_mask that is a QEMU
programming error.

I kept the HSRR verification for BookS because it is the only CPU
family that has HSRRs.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220207183036.1507882-4-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Fabiano Rosas c6eaac893a target/ppc: powerpc_excp: Move common code to the caller function
Make the cpu-specific powerpc_excp_* functions a bit simpler by moving
the bounds check and logging to powerpc_excp.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220207183036.1507882-3-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Fabiano Rosas 2809137443 target/ppc: Remove powerpc_excp_legacy
Now that all CPU families have their own separate exception
dispatching code we can remove powerpc_excp_legacy.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220207183036.1507882-2-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Fabiano Rosas fe4b5c4c33 target/ppc: 7xx: Set SRRs directly in exception code
The 7xx CPUs don't have alternate/hypervisor Save and Restore
Registers, so we can set SRR0 and SRR1 directly.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220204173430.1457358-11-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Fabiano Rosas 7df40c5414 target/ppc: 7xx: Software TLB cleanup
This code applies only to the 7xx CPUs, so we can remove the switch
statement.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220204173430.1457358-10-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Fabiano Rosas 3c3fa438f6 target/ppc: 7xx: System Reset cleanup
Thre is no HV support in the 7xx.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220204173430.1457358-9-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Fabiano Rosas 3b57863593 target/ppc: 7xx: System Call exception cleanup
Remove the BookE code and add a comment explaining why we need to keep
hypercall support even though this CPU does not have a hypervisor
mode.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220204173430.1457358-8-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Fabiano Rosas ab36939033 target/ppc: 7xx: Program exception cleanup
There's no ESR in the 7xx.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220204173430.1457358-7-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Fabiano Rosas a53ce46537 target/ppc: 7xx: External interrupt cleanup
There is no MSR_HV in the 7xx so remove the LPES0 handling.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220204173430.1457358-6-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Fabiano Rosas 784f5a3403 target/ppc: 7xx: Machine Check exception cleanup
There's no MSR_HV in the 7xx.

Also remove 40x and BookE code.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220204173430.1457358-5-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Fabiano Rosas 93848d6a4c target/ppc: Simplify powerpc_excp_7xx
Differences from the generic powerpc_excp code:

- Not BookE, so some MSR bits are cleared at interrupt dispatch;
- No MSR_HV;
- No power saving states;
- No Hypervisor Emulation Assistance;
- Not 64 bits;
- No System call vectored;
- No Alternate Interrupt Location.

Exceptions used:

POWERPC_EXCP_ALIGN
POWERPC_EXCP_DECR
POWERPC_EXCP_DLTLB
POWERPC_EXCP_DSI
POWERPC_EXCP_DSTLB
POWERPC_EXCP_EXTERNAL
POWERPC_EXCP_FPU
POWERPC_EXCP_IABR
POWERPC_EXCP_IFTLB
POWERPC_EXCP_ISI
POWERPC_EXCP_MCHECK
POWERPC_EXCP_PERFM
POWERPC_EXCP_PROGRAM
POWERPC_EXCP_RESET
POWERPC_EXCP_SMI
POWERPC_EXCP_SYSCALL
POWERPC_EXCP_THERM
POWERPC_EXCP_TRACE

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220204173430.1457358-4-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Fabiano Rosas ccfca2fca5 target/ppc: Introduce powerpc_excp_7xx
Introduce a new powerpc_excp function specific for PowerPC 7xx CPUs
(740, 745, 750, 750cl, 750cx, 750fx, 750gx, 755). This commit copies
powerpc_excp_legacy verbatim so the next one has a clean diff.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220204173430.1457358-3-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Fabiano Rosas fd7dc4bb78 target/ppc: Merge 7x5 and 7x0 exception model IDs
Since we've split the exception code by exception model, the exception
model IDs are becoming less useful. These two can be merged.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220204173430.1457358-2-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Fabiano Rosas c50eaed135 target/ppc: 6xx: Set SRRs directly in exception code
The 6xx CPUs don't have alternate/hypervisor Save and Restore
Registers, so we can set SRR0 and SRR1 directly.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220203200957.1434641-12-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:56 +01:00
Fabiano Rosas 8f8c7932d4 target/ppc: 6xx: Software TLB exceptions cleanup
This code applies only to the 6xx CPUs, so we can remove the switch
statement.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220203200957.1434641-11-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas 000ac49ad2 target/ppc: 6xx: System Reset interrupt cleanup
There is no HV support in the 6xx.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220203200957.1434641-10-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas c0e1928de5 target/ppc: 6xx: System Call exception cleanup
There is no Hypervisor mode in the 6xx CPUs.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220203200957.1434641-9-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas 25fe5f7534 target/ppc: 6xx: Program exception cleanup
There's no ESR in the 6xx CPUs.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220203200957.1434641-8-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas 3189fa3917 target/ppc: 6xx: External interrupt cleanup
There's no Hypervisor mode in the 6xx, so remove all LPES0 logic.

Also remove BookE IRQ code.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220203200957.1434641-7-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas 9b12ff43d4 target/ppc: 6xx: Machine Check exception cleanup
There's no MSR_HV in the 6xx CPUs.

Also remove the 40x and BookE code.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220203200957.1434641-6-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas b7c32cdd9a target/ppc: 6xx: Critical exception cleanup
This only applies to the G2s, the other 6xx CPUs will not have this
vector registered.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220203200957.1434641-5-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas 082d783bf0 target/ppc: Simplify powerpc_excp_6xx
Differences from the generic powerpc_excp code:

- Not BookE, so some MSR bits are cleared at interrupt dispatch;
- No MSR_HV;
- No power saving states;
- No Hypervisor Emulation Assistance;
- Not 64 bits;
- No System call vectored;
- No Alternate Interrupt Location.

Exceptions used:

POWERPC_EXCP_ALIGN
POWERPC_EXCP_CRITICAL
POWERPC_EXCP_DABR
POWERPC_EXCP_DECR
POWERPC_EXCP_DLTLB
POWERPC_EXCP_DSI
POWERPC_EXCP_DSTLB
POWERPC_EXCP_DTLB
POWERPC_EXCP_EXTERNAL
POWERPC_EXCP_FPA
POWERPC_EXCP_FPU
POWERPC_EXCP_IABR
POWERPC_EXCP_IFTLB
POWERPC_EXCP_ISI
POWERPC_EXCP_ITLB
POWERPC_EXCP_MCHECK
POWERPC_EXCP_MEXTBR
POWERPC_EXCP_NMEXTBR
POWERPC_EXCP_PROGRAM
POWERPC_EXCP_RESET
POWERPC_EXCP_SMI
POWERPC_EXCP_SYSCALL
POWERPC_EXCP_TRACE

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220203200957.1434641-4-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas 58d178fb8b target/ppc: Introduce powerpc_excp_6xx
Introduce a new powerpc_excp function specific for PowerPC 6xx CPUs
(603, 604, G2, MPC5xx, MCP8xx). This commit copies powerpc_excp_legacy
verbatim so the next one has a clean diff.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220203200957.1434641-3-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas 9323650f97 target/ppc: Merge exception model IDs for 6xx CPUs
We don't need three separate exception model IDs for the 603, 604 and
G2.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220203200957.1434641-2-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Cédric Le Goater 005b69fdcc target/ppc: Remove PowerPC 601 CPUs
The PowerPC 601 processor is the first generation of processors to
implement the PowerPC architecture. It was designed as a bridge
processor and also could execute most of the instructions of the
previous POWER architecture. It was found on the first Macs and IBM
RS/6000 workstations.

There is not much interest in keeping the CPU model of this
POWER-PowerPC bridge processor. We have the 603 and 604 CPU models of
the 60x family which implement the complete PowerPC instruction set.

Cc: "Hervé Poussineau" <hpoussin@reactos.org>
Cc: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220203142756.1302515-1-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Cédric Le Goater 36387ca51c target/ppc: Fix radix logging
ppc_radix64_partition_scoped_xlate() logs the host page protection
bits variable but it is uninitialized. The value is set later on in
ppc_radix64_check_prot(). Remove the output.

Fixes: Coverity CID 1468942
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20220203142145.1301749-1-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas 0fdd000a41 target/ppc: booke: System Reset exception cleanup
There is no MSR_HV in BookE, so remove all of the HV logic.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220128224018.1228062-12-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas f2ba48779c target/ppc: booke: Watchdog Timer interrupt
Remove the switch as this function applies to BookE only.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220128224018.1228062-11-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas 904e842865 target/ppc: booke: System Call exception cleanup
QEMU does not support BookE as a hypervisor.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220128224018.1228062-10-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas f7a28f7119 target/ppc: booke: Alignment interrupt cleanup
BookE has no DSISR or DAR. The proper registers ESR and DEAR were
already set at this point.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220128224018.1228062-9-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas 5d54e8c18e target/ppc: booke: External interrupt cleanup
There is no LPES0 in BookE and no MSR_HV.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220128224018.1228062-8-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas b583351d4b target/ppc: booke: Instruction storage exception cleanup
The SRR1 should be set to the MSR value. There are no diagnostic bits
in the SRR1 for BookE.

Note that this fixes a bug where MSR_GS would be set and Linux would
go into KVM code when there's no KVM guest.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220128224018.1228062-7-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas afdbc86941 target/ppc: booke: Data Storage exception cleanup
There is no DSISR or DAR in BookE. Change to ESR and DEAR.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220128224018.1228062-6-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas db403211f8 target/ppc: booke: Machine Check cleanups
There's no MSR_HV in BookE.

Also remove 40x code.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220128224018.1228062-5-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas 9c9b67fe91 target/ppc: booke: Critical exception cleanup
Remove 40x and G2 code.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220128224018.1228062-4-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas 9dc20cc37d target/ppc: Simplify powerpc_excp_booke
Differences from the generic powerpc_excp code:

- No MSR bits are cleared at interrupt dispatch;
- No MSR_HV;
- No power saving states;
- No Hypervisor Emulation Assistance;
- SPEU needs special handling;
- Big endian only;
- Both 64 and 32 bits;
- No System call vectored;
- No Alternate Interrupt Location.

Exceptions used:

POWERPC_EXCP_ALIGN
POWERPC_EXCP_APU
POWERPC_EXCP_CRITICAL
POWERPC_EXCP_DEBUG
POWERPC_EXCP_DECR
POWERPC_EXCP_DSI
POWERPC_EXCP_DTLB
POWERPC_EXCP_EFPDI
POWERPC_EXCP_EFPRI
POWERPC_EXCP_EXTERNAL
POWERPC_EXCP_FIT
POWERPC_EXCP_FPU
POWERPC_EXCP_ISI
POWERPC_EXCP_ITLB
POWERPC_EXCP_MCHECK
POWERPC_EXCP_PROGRAM
POWERPC_EXCP_RESET
POWERPC_EXCP_SPEU
POWERPC_EXCP_SYSCALL
POWERPC_EXCP_WDT

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220128224018.1228062-3-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas 180952cedc target/ppc: Introduce powerpc_excp_booke
Introduce a new powerpc_excp function specific for BookE CPUs. This
commit copies powerpc_excp_legacy verbatim so the next one has a clean
diff.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220128224018.1228062-2-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Fabiano Rosas 84f54da513 target/ppc: Remove 440x4 CPU
This CPU was partially removed due to lack of support in 2017 by commit
aef7796057 ("ppc: remove non implemented cpu models").

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220128221611.1221715-1-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09 09:08:55 +01:00
Richard Henderson 5c1a101ef6 tests/tcg/multiarch: Add sigbus.c
A mostly generic test for unaligned access raising SIGBUS.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-02-09 09:00:01 +11:00
Richard Henderson 321dbde33a tcg/sparc: Support unaligned access for user-only
This is kinda sorta the opposite of the other tcg hosts, where
we get (normal) alignment checks for free with host SIGBUS and
need to add code to support unaligned accesses.

This inline code expansion is somewhat large, but it takes quite
a few instructions to make a function call to a helper anyway.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-02-09 09:00:00 +11:00
Richard Henderson e01d60f211 tcg/sparc: Add tcg_out_jmpl_const for better tail calls
Due to mapping changes, we now rarely place the code_gen_buffer
near the main executable.  Which means that direct calls will
now rarely be in range.

So, always use indirect calls for tail calls, which allows us to
avoid clobbering %o7, and therefore we need not save and restore it.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-02-09 09:00:00 +11:00
Richard Henderson c834b8d81b tcg/sparc: Use the constant pool for 64-bit constants
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-02-09 09:00:00 +11:00
Richard Henderson 6a6bfa3c60 tcg/sparc: Convert patch_reloc to return bool
Since 7ecd02a06f, if patch_reloc fails we restart translation
with a smaller TB.  SPARC had its function signature changed,
but not the logic.  Replace assert with return false.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-02-09 08:59:06 +11:00
Richard Henderson 684db2a0b0 tcg/sparc: Improve code gen for shifted 32-bit constants
We had code for checking for 13 and 21-bit shifted constants,
but we can do better and allow 32-bit shifted constants.
This is still 2 insns shorter than the full 64-bit sequence.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-02-09 08:59:06 +11:00