qemu/accel
Alex Bennée cfd405eae6 accel/tcg: allow plugin instrumentation to be disable via cflags
When icount is enabled and we recompile an MMIO access we end up
double counting the instruction execution. To avoid this we introduce
the CF_MEMI cflag which only allows memory instrumentation for the
next TB (which won't yet have been counted). As this is part of the
hashed compile flags we will only execute the generated TB while
coming out of a cpu_io_recompile.

While we are at it delete the old TODO. We might as well keep the
translation handy as it's likely you will repeatedly hit it on each
MMIO access.

Reported-by: Aaron Lindsay <aaron@os.amperecomputing.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Aaron Lindsay <aaron@os.amperecomputing.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210213130325.14781-21-alex.bennee@linaro.org>
2021-02-18 08:19:23 +00:00
..
hvf hvf: Add hypervisor entitlement to output binaries 2021-01-29 10:47:28 +00:00
kvm sev/i386: Don't allow a system reset under an SEV-ES guest 2021-02-16 17:15:39 +01:00
qtest accel: replace struct CpusAccel with AccelOpsClass 2021-02-05 10:24:15 -10:00
stubs sev: Remove false abstraction of flash encryption 2021-02-08 16:57:38 +11:00
tcg accel/tcg: allow plugin instrumentation to be disable via cflags 2021-02-18 08:19:23 +00:00
xen accel: replace struct CpusAccel with AccelOpsClass 2021-02-05 10:24:15 -10:00
Kconfig meson: cleanup Kconfig.host handling 2021-01-02 21:03:36 +01:00
accel-common.c accel: introduce AccelCPUClass extending CPUClass 2021-02-05 10:24:15 -10:00
accel-softmmu.c accel: replace struct CpusAccel with AccelOpsClass 2021-02-05 10:24:15 -10:00
accel-softmmu.h accel: replace struct CpusAccel with AccelOpsClass 2021-02-05 10:24:15 -10:00
accel-user.c accel: extend AccelState and AccelClass to user-mode 2021-02-05 10:24:15 -10:00
dummy-cpus.c accel: move qtest CpusAccel functions to a common location 2020-10-24 07:23:19 +02:00
meson.build accel: extend AccelState and AccelClass to user-mode 2021-02-05 10:24:15 -10:00