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qemu-e2k/target/ppc
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Matheus Ferst 2d1154bd95 target/ppc: Ease L=0 requirement on cmp/cmpi/cmpl/cmpli for ppc32 
In commit 8f0a4b6a9b, we started to require L=0 for ppc32 to match what
The Programming Environments Manual say:

"For 32-bit implementations, the L field must be cleared, otherwise
the instruction form is invalid."

The stricter behavior, however, broke AROS boot on sam460ex, which is a
regression from 6.0. This patch partially reverts the change, raising
the exception only for CPUs known to require L=0 (e500 and e500mc) and
logging a guest error for other cases.

Both behaviors are acceptable by the PowerISA, which allows "the system
illegal instruction error handler to be invoked or yield boundedly
undefined results."

Reported-by: BALATON Zoltan <balaton@eik.bme.hu>
Fixes: 8f0a4b6a9b ("target/ppc: Move cmp/cmpi/cmpl/cmpli to decodetree")
Tested-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20210720135507.2444635-1-matheus.ferst@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-07-29 10:59:49 +10:00
..
translate target/ppc: Ease L=0 requirement on cmp/cmpi/cmpl/cmpli for ppc32 2021-07-29 10:59:49 +10:00
arch_dump.c target/ppc: Introduce ppc_interrupts_little_endian() 2021-07-09 10:38:18 +10:00
compat.c powerpc tcg: Fix Lesser GPL version number 2020-11-15 16:38:50 +01:00
cpu_init.c target/ppc: Don't compile ppc_tlb_invalid_all without TCG 2021-07-09 10:44:25 +10:00
cpu-models.c powerpc tcg: Fix Lesser GPL version number 2020-11-15 16:38:50 +01:00
cpu-models.h powerpc tcg: Fix Lesser GPL version number 2020-11-15 16:38:50 +01:00
cpu-param.h tcg: Split out target/arch/cpu-param.h 2019-06-10 07:03:34 -07:00
cpu-qom.h target/ppc: Remove PowerPCCPUClass.handle_mmu_fault 2021-07-09 10:38:18 +10:00
cpu.c target/ppc: Allow virtual hypervisor on CPU without HV 2021-07-09 10:38:19 +10:00
cpu.h target/ppc: Introduce ppc_interrupts_little_endian() 2021-07-09 10:38:18 +10:00
dfp_helper.c powerpc tcg: Fix Lesser GPL version number 2020-11-15 16:38:50 +01:00
excp_helper.c target/ppc: Introduce ppc_interrupts_little_endian() 2021-07-09 10:38:18 +10:00
fpu_helper.c target/ppc: overhauled and moved logic of storing fpscr 2021-06-03 18:10:31 +10:00
gdbstub.c target/ppc: overhauled and moved logic of storing fpscr 2021-06-03 18:10:31 +10:00
helper_regs.c target/ppc: Validate hflags with CONFIG_DEBUG_TCG 2021-05-04 11:41:25 +10:00
helper_regs.h target/ppc: Remove env->immu_idx and env->dmmu_idx 2021-05-04 11:41:25 +10:00
helper.h tcg: Combine dh_is_64bit and dh_is_signed to dh_typecode 2021-06-19 08:51:11 -07:00
insn32.decode target/ppc: Move cmp/cmpi/cmpl/cmpli to decodetree 2021-06-03 18:10:31 +10:00
insn64.decode target/ppc: Implement prefixed integer store instructions 2021-06-03 18:10:31 +10:00
int_helper.c target/ppc: Implement cfuged instruction 2021-06-03 18:10:31 +10:00
internal.h target/ppc: removed all mentions to PPC_DUMP_CPU 2021-06-03 18:10:31 +10:00
Kconfig meson: Introduce target-specific Kconfig 2021-07-09 18:21:34 +02:00
kvm_ppc.h target/ppc: Support for H_RPT_INVALIDATE hcall 2021-07-09 11:01:06 +10:00
kvm-stub.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
kvm.c target/ppc: Support for H_RPT_INVALIDATE hcall 2021-07-09 11:01:06 +10:00
machine.c target/ppc: updated vscr manipulation in machine.c 2021-05-19 10:30:28 +10:00
mem_helper.c tcg: Rename helper_atomic_*_mmu and provide for user-only 2021-07-21 07:45:38 -10:00
meson.build target/ppc: Add infrastructure for prefixed insns 2021-06-03 18:10:31 +10:00
mfrom_table_gen.c target/ppc: Style fixes for mfrom_table.inc.c & mfrom_table_gen.c 2019-04-26 10:42:38 +10:00
mfrom_table.c.inc meson: rename included C source files to .c.inc 2020-08-21 06:18:30 -04:00
misc_helper.c target/ppc: fold ppc_store_ptcr into it's only caller 2021-06-03 13:22:06 +10:00
mmu_helper.c target/ppc: Don't compile ppc_tlb_invalid_all without TCG 2021-07-09 10:44:25 +10:00
mmu-book3s-v3.c target/ppc: Introduce ppc_xlate 2021-07-09 10:38:19 +10:00
mmu-book3s-v3.h target/ppc: introduce mmu-books.h 2021-07-09 10:38:19 +10:00
mmu-books.h target/ppc: introduce mmu-books.h 2021-07-09 10:38:19 +10:00
mmu-hash32.c target/ppc: change ppc_hash32_xlate to use mmu_idx 2021-07-09 10:38:19 +10:00
mmu-hash32.h target/ppc: change ppc_hash32_xlate to use mmu_idx 2021-07-09 10:38:19 +10:00
mmu-hash64.c target/ppc: changed ppc_hash64_xlate to use mmu_idx 2021-07-09 10:38:19 +10:00
mmu-hash64.h target/ppc: changed ppc_hash64_xlate to use mmu_idx 2021-07-09 10:38:19 +10:00
mmu-radix64.c target/ppc: fix address translation bug for radix mmus 2021-07-09 10:38:19 +10:00
mmu-radix64.h target/ppc: fix address translation bug for radix mmus 2021-07-09 10:38:19 +10:00
monitor.c hmp: Pass monitor to mon_get_cpu_env() 2020-11-13 12:45:51 +00:00
spr_tcg.h target/ppc: isolated cpu init from translation logic 2021-05-19 10:30:28 +10:00
tcg-stub.c target/ppc: created tcg-stub.c file 2021-06-03 13:22:06 +10:00
timebase_helper.c powerpc tcg: Fix Lesser GPL version number 2020-11-15 16:38:50 +01:00
trace-events docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
translate.c accel/tcg: Remove TranslatorOps.breakpoint_check 2021-07-21 07:47:05 -10:00
user_only_helper.c powerpc tcg: Fix Lesser GPL version number 2020-11-15 16:38:50 +01:00