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| author | KONRAD Frederic <fred.konrad@greensocs.com> | 2017-02-23 18:29:08 +0000 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2017-02-24 10:32:45 +0000 |
| commit | 8d4e9146b3568022ea5730d92841345d41275d66 (patch) | |
| tree | 76c0c83af2e41e05956a2e29f1a60dc89208c5d3 /tcg | |
| parent | 20937143145b8f5a4194e5c407731ba38797864e (diff) | |
| download | qemu-8d4e9146b3568022ea5730d92841345d41275d66.tar.gz | |
tcg: add options for enabling MTTCG
We know there will be cases where MTTCG won't work until additional work
is done in the front/back ends to support. It will however be useful to
be able to turn it on.
As a result MTTCG will default to off unless the combination is
supported. However the user can turn it on for the sake of testing.
Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
[AJB: move to -accel tcg,thread=multi|single, defaults]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/tcg.h | 9 |
1 files changed, 9 insertions, 0 deletions
@@ -80,6 +80,15 @@ typedef uint64_t tcg_target_ulong; #error unsupported #endif +/* Oversized TCG guests make things like MTTCG hard + * as we can't use atomics for cputlb updates. + */ +#if TARGET_LONG_BITS > TCG_TARGET_REG_BITS +#define TCG_OVERSIZED_GUEST 1 +#else +#define TCG_OVERSIZED_GUEST 0 +#endif + #if TCG_TARGET_NB_REGS <= 32 typedef uint32_t TCGRegSet; #elif TCG_TARGET_NB_REGS <= 64 |