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| author | Richard Henderson | 2016-09-02 21:23:57 +0200 |
|---|---|---|
| committer | Richard Henderson | 2016-10-26 17:29:01 +0200 |
| commit | df79b996a7b21c6ea7847f7927a2e1a294b86c72 (patch) | |
| tree | 878779e7214c310b0b0929ca115e286a9f0ba12f /cputlb.c | |
| parent | tcg: Add atomic128 helpers (diff) | |
| download | qemu-df79b996a7b21c6ea7847f7927a2e1a294b86c72.tar.gz qemu-df79b996a7b21c6ea7847f7927a2e1a294b86c72.tar.xz qemu-df79b996a7b21c6ea7847f7927a2e1a294b86c72.zip | |
tcg: Add CONFIG_ATOMIC64
Allow qemu to build on 32-bit hosts without 64-bit atomic ops.
Even if we only allow 32-bit hosts to multi-thread emulate 32-bit
guests, we still need some way to handle the 32-bit guest using a
64-bit atomic operation. Do so by dropping back to single-step.
Reviewed-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'cputlb.c')
| -rw-r--r-- | cputlb.c | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -687,8 +687,10 @@ static void *atomic_mmu_lookup(CPUArchState *env, target_ulong addr, #define DATA_SIZE 4 #include "atomic_template.h" +#ifdef CONFIG_ATOMIC64 #define DATA_SIZE 8 #include "atomic_template.h" +#endif #ifdef CONFIG_ATOMIC128 #define DATA_SIZE 16 @@ -713,8 +715,10 @@ static void *atomic_mmu_lookup(CPUArchState *env, target_ulong addr, #define DATA_SIZE 4 #include "atomic_template.h" +#ifdef CONFIG_ATOMIC64 #define DATA_SIZE 8 #include "atomic_template.h" +#endif /* Code access functions. */ |