xemu/target
Peter Maydell 55c812b742 target/arm: Remove unnecessary gen_io_end() calls
Since commit ba3e792669 it has been unnecessary for target code
to call gen_io_end() after an IO instruction in icount mode; it is
sufficient to call gen_io_start() before it and to force the end of
the TB.

Many now-unnecessary calls to gen_io_end() were removed in commit
9e9b10c649, but some were missed or accidentally added later.
Remove unneeded calls from the arm target:

 * the call in the handling of exception-return-via-LDM is
   unnecessary, and the code is already forcing end-of-TB
 * the call in the VFP access check code is more complicated:
   we weren't ending the TB, so we need to add the code to
   force that by setting DISAS_UPDATE
 * the doc comment for ARM_CP_IO doesn't need to mention
   gen_io_end() any more

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Message-id: 20200619170324.12093-1-peter.maydell@linaro.org
2020-06-23 11:39:47 +01:00
..
alpha accel/tcg: Relax va restrictions on 64-bit guests 2020-05-15 15:25:16 +01:00
arm target/arm: Remove unnecessary gen_io_end() calls 2020-06-23 11:39:47 +01:00
cris
hppa softfloat: Name compare relation enum 2020-05-19 08:41:45 -07:00
i386 qdev: Convert bus-less devices to qdev_realize() with Coccinelle 2020-06-15 22:06:04 +02:00
lm32
m68k target/m68k: implement opcode fetoxm1 2020-06-02 13:59:02 +02:00
microblaze target/microblaze: monitor: Increase the number of registers reported 2020-05-14 16:01:02 +02:00
mips target/mips: msa: Split helpers for MULV.<B|H|W|D> 2020-06-15 20:51:04 +02:00
moxie
nios2
openrisc softfloat: Name compare relation enum 2020-05-19 08:41:45 -07:00
ppc target/ppc: Restrict PPCVirtualHypervisorClass to system-mode 2020-06-12 11:12:45 -04:00
riscv hw/riscv: sifive: Change SiFive E/U CPU reset vector to 0x1004 2020-06-19 08:25:27 -07:00
rx target/rx/translate: Add missing fall through comment 2020-04-07 18:45:54 -07:00
s390x vfio-ccw: Add support for the schib region 2020-06-18 12:13:54 +02:00
sh4 gdbstub: Introduce gdb_get_float32() to get 32-bit float registers 2020-04-15 11:38:23 +01:00
sparc target/sparc/int32_helper: Extract and use excp_name_str() 2020-06-09 09:21:10 +02:00
tilegx
tricore target/tricore: Implement gdbstub 2020-06-01 16:55:13 +02:00
unicore32 target/unicore32: Prefer qemu_semihosting_log_out() over curses 2020-06-09 19:58:53 +02:00
xtensa softfloat: Name compare relation enum 2020-05-19 08:41:45 -07:00