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'remotes/ehabkost/tags/x86-and-machine-pull-request' into staging
x86/cpu/numa queue, 2017-10-27
# gpg: Signature made Fri 27 Oct 2017 15:17:12 BST
# gpg: using RSA key 0x2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6
* remotes/ehabkost/tags/x86-and-machine-pull-request: (39 commits)
x86: Skip check apic_id_limit for Xen
numa: fixup parsed NumaNodeOptions earlier
mips: r4k: replace cpu_model with cpu_type
mips: mipssim: replace cpu_model with cpu_type
mips: Magnum/Acer Pica 61: replace cpu_model with cpu_type
mips: fulong2e: replace cpu_model with cpu_type
mips: malta/boston: replace cpu_model with cpu_type
mips: use object_new() instead of gnew()+object_initialize()
sparc: leon3: use generic cpu_model parsing
sparc: sparc: use generic cpu_model parsing
sparc: sun4u/sun4v/niagara: use generic cpu_model parsing
sparc: cleanup cpu type name composition
tricore: use generic cpu_model parsing
tricore: cleanup cpu type name composition
unicore32: use generic cpu_model parsing
unicore32: cleanup cpu type name composition
xtensa: lx60/lx200/ml605/kc705: use generic cpu_model parsing
xtensa: sim: use generic cpu_model parsing
xtensa: cleanup cpu type name composition
sh4: remove SuperHCPUClass::name field
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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the field contains upper-cased cpu model name and is used
for printing supported cpu model names for '-cpu help'.
Considering that cpu model lookup in superh_cpu_class_by_name()
is case-insensitive, we can drop upper-casing when
printing supported cpus list and use cpu type directly
to do the same by cutting out SUPERH_CPU_TYPE_SUFFIX from
typename.
It allows to remove SuperHCPUClass::name, which practically
duplicates names defined by TYPE_SH*_CPU definitions and
simplify sh*_class_init()/SuperHCPUClass a bit.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1507211474-188400-24-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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currently for sh4 cpu_model argument for '-cpu' option
could be either 'cpu model' name or cpu_typename.
however typically '-cpu' takes 'cpu model' name and
cpu type for sh4 target isn't advertised publicly
('-cpu help' prints only 'cpu model' names) so we
shouldn't care about this use case (it's more of a bug).
1. Drop '-cpu cpu_typename' to align with the rest of
targets.
2. Compose searched for typename from cpu model and use
it with object_class_by_name() directly instead of
over-complicated
object_class_get_list()
g_slist_find_custom() + superh_cpu_name_compare()
With #1 droped, #2 could be used for both lookups which
simplifies superh_cpu_class_by_name() quite a bit.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1507211474-188400-23-git-send-email-imammedo@redhat.com>
[ehabkost: Include fixup sent by Igor]
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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introduce SUPERH_CPU_TYPE_NAME macro and use it to construct
cpu type names. While at it move cpu type_infos into one
array and register it directly with type_init_from_array()
instead of custom superh_cpu_register_types()
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1507211474-188400-22-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Capstone disassembler
# gpg: Signature made Thu 26 Oct 2017 10:57:27 BST
# gpg: using RSA key 0x64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>"
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* remotes/rth/tags/pull-dis-20171026:
disas: Add capstone as submodule
disas: Remove monitor_disas_is_physical
ppc: Support Capstone in disas_set_info
arm: Support Capstone in disas_set_info
i386: Support Capstone in disas_set_info
disas: Support the Capstone disassembler library
disas: Remove unused flags arguments
target/arm: Don't set INSN_ARM_BE32 for CONFIG_USER_ONLY
target/arm: Move BE32 disassembler fixup
target/ppc: Convert to disas_set_info hook
target/i386: Convert to disas_set_info hook
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
# Conflicts:
# target/i386/cpu.c
# target/ppc/translate_init.c
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Now that every target is using the disas_set_info hook,
the flags argument is unused. Remove it.
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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This is identical for each target. So, move the initialization to
common code. Move the variable itself out of tcg_ctx and name it
cpu_env to minimize changes within targets.
This also means we can remove tcg_global_reg_new_{ptr,i32,i64},
since there are no longer global-register temps created by targets.
Reviewed-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Groundwork for supporting multiple TCG contexts.
The core of this patch is this change to tcg/tcg.h:
> -extern TCGContext tcg_ctx;
> +extern TCGContext tcg_init_ctx;
> +extern TCGContext *tcg_ctx;
Note that for now we set *tcg_ctx to whatever TCGContext is passed
to tcg_context_init -- in this case &tcg_init_ctx.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Thereby decoupling the resulting translated code from the current state
of the system.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Convert all existing readers of tb->cflags to tb_cflags, so that we
use atomic_read and therefore avoid undefined behaviour in C11.
Note that the remaining setters/getters of the field are protected
by tb_lock, and therefore do not need conversion.
Luckily all readers access the field via 'tb->cflags' (so no foo.cflags,
bar->cflags in the code base), which makes the conversion easily
scriptable:
FILES=$(git grep 'tb->cflags' target include/exec/gen-icount.h \
accel/tcg/translator.c | cut -f1 -d':' | sort | uniq)
perl -pi -e 's/([^.>])tb->cflags/$1tb_cflags(tb)/g' $FILES
perl -pi -e 's/([a-z->.]*)(->|\.)tb->cflags/tb_cflags($1$2tb)/g' $FILES
Then manually fixed the few errors that checkpatch reported.
Compile-tested for all targets.
Suggested-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Move target cpu tcg initialization to common code,
called from cpu_exec_realizefn.
Acked-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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The real kernel has TASK_SIZE as 0x7c000000, due to quirks with
a couple of SH parts. But nominally user-space is limited to 2GB.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170708025030.15845-4-rth@twiddle.net>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
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It is unlikely that we will ever want to call this helper passing
an argument other than the current PC. So just remove the argument,
and use the pc we already get from cpu_get_tb_cpu_state.
This change paves the way to having a common "tb_lookup" function.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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and clean every implementation.
Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170917232842.14544-1-f4bug@amsat.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Artyom Tarasenko <atar4qemu@gmail.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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it's just a wrapper, drop it and use cpu_generic_init() directly
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1503592308-93913-18-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Needed to implement a target-agnostic gen_intermediate_code()
in the future.
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Alex Benneé <alex.benee@linaro.org>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Message-Id: <150002025498.22386.18051908483085660588.stgit@frigg.lan>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-28-rth@twiddle.net>
[aurel32: fix whitespace]
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-27-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Both frchg and fschg require PR == 0, otherwise undefined_operation.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-26-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-25-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-24-rth@twiddle.net>
[aurel32: fix conflict]
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-23-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Now that we have a do_illegal label, use goto in order
to self-document the forcing of the exception.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-22-rth@twiddle.net>
[aurel32: fix whitespace issues]
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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We do not need to emit N copies of raising an exception.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-21-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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We do not need to emit N copies of raising an exception.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-20-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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We do not need to emit N copies of raising an exception.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-19-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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We do not need to form full 64-bit quantities in order to perform
the move. This reduces code expansion on 64-bit hosts.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-18-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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This enforces proper alignment and makes the register update
more natural. Note that there is a more serious bug fix for
fmov {DX}Rn,@(R0,Rn) to use a store instead of a load.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-17-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Also add a debugging assert that we did signal illegal opc
for odd double-precision registers.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-16-rth@twiddle.net>
[aurel32: fix whitespace issues]
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-15-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Compute which register bank to use once at the start of translation.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-14-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-13-rth@twiddle.net>
[aurel32: fix whitespace issues]
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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We were treating FREG as an index and REG as a TCGv.
Making FREG return a TCGv is both less confusing and
a step toward cleaner banking of cpu_fregs.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-12-rth@twiddle.net>
[aurel32: fix whitespace issues]
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Compute which register bank to use once at the start of translation.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-11-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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For many of the sequences produced by gcc or glibc,
we can translate these as host atomic operations.
Which saves the need to acquire the exclusive lock.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-8-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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For uniprocessors, SH4 uses optimistic restartable atomic sequences.
Upon an interrupt, a real kernel would simply notice magic values in
the registers and reset the PC to the start of the sequence.
For QEMU, we cannot do this in quite the same way. Instead, we notice
the normal start of such a sequence (mov #-x,r15), and start a new TB
that can be executed under cpu_exec_step_atomic.
Reported-by: Bruno Haible <bruno@clisp.org>
LP: https://bugs.launchpad.net/bugs/1701971
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-7-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Don't leave an unused bit after DELAY_SLOT_MASK.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-6-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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If we mask off any out-of-band bits before we assign to the
variable, then we don't need to clean it up when reading.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-5-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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We'll be putting more things into this bitmask soon.
Let's have a name that covers all possible uses.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-4-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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We can fold 3 different tests within the decode loop
into a more accurate computation of max_insns to start.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170718200255.31647-3-rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Since that the T bit of the SR register is mapped using a TGC global,
it's better to return the value through TCG than writing it directly. It
allows to declare the helpers with the flag TCG_CALL_NO_WG.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170702202814.27793-5-aurelien@aurel32.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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There is no need to use a helper to flip one bit, just use a TCG xor
instruction instead.
Message-Id: <20170702202814.27793-5-aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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The floating-point status/control register contains cause and flag
bits. The cause bits are set to 0 before executing the instruction,
while the flag bits hold the status of the exception generated after
the field was last cleared.
Message-Id: <20170702202814.27793-4-aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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In case of unordered compare, the fcmp instructions should either
trigger and invalid exception (if enabled) or set T=0. The existing code
left it unchanged.
LP: https://bugs.launchpad.net/qemu/+bug/1701821
Reported-by: Bruno Haible <bruno@clisp.org>
Message-Id: <20170702202814.27793-3-aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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The SH4 manual is not fully clear about that, but real hardware do not
check for the PR bit, which allows to select between single or double
precision, for the fabs instruction. This is probably what is meant by
"Same operation is performed regardless of precision."
Remove the check, and at the same time use a TCG instruction instead of
a helper to clear one bit.
LP: https://bugs.launchpad.net/qemu/+bug/1701821
Reported-by: Bruno Haible <bruno@clisp.org>
Message-Id: <20170702202814.27793-2-aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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The ReTurn from Exception (RTE) instruction loads the system register
(SR) with the saved system register (SSR). It has a delay slot, and
behaves specially according to the SH4 manual:
The SR value accessed by the instruction in the RTE delay slot is the
value restored from SSR by the RTE instruction. The SR and MD values
defined prior to RTE execution are used to fetch the instruction in
the RTE delay slot.
The instruction in the delay slot being often a NOP, it doesn't cause
any issue most of the time except in some rare cases where the NOP is
being splitted in a different TB (for example when the TCG op buffer
is full). In that case the NOP is fetched with the user permissions
and causes an instruction TLB protection violation exception.
This patches fixes that by introducing a new delay slot flag for the
RTE instruction. Given it's a privileged instruction, the RTE delay
slot instruction is always fetched in privileged mode. It is therefore
enough to to check for this flag in cpu_mmu_index.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Delay slots are indivisible, therefore avoid scheduling an interrupt in
the delay slot. However exceptions are possible.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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This will make easier the introduction of a new flag in the next
patches.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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When a masked exception happens, the SH4 CPU generates a non-masked
reset exception, which then jumps to the reset vector at address
0xA0000000. While this is emulated correctly in QEMU, this does not
work when using a kernel and initrd as this address then contain an
illegal instruction (and there is no guarantee the kernel and initrd
haven't been overwritten).
Therefore call qemu_system_reset_request to reload the kernel and initrd
and load the program counter to the kernel entry point.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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qemu_log_mask() is preferred over fprintf() for logging errors.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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