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authorPeter Maydell <peter.maydell@linaro.org>2015-02-05 13:37:23 +0000
committerPeter Maydell <peter.maydell@linaro.org>2015-02-05 13:37:23 +0000
commit8f3ae2ae2d02727f6d56610c09d7535e43650dd4 (patch)
treeec81775c6d32cbafb08cb564373dbca3a292da48 /include/exec
parent587078f0ed6371f83a54228faed70867d3137954 (diff)
downloadhqemu-8f3ae2ae2d02727f6d56610c09d7535e43650dd4.zip
hqemu-8f3ae2ae2d02727f6d56610c09d7535e43650dd4.tar.gz
cpu_ldst.h: Allow NB_MMU_MODES to be 7
Support guest CPUs which need 7 MMU index values. Add a comment about what would be required to raise the limit further (trivial for 8, TCG backend rework for 9 or more). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'include/exec')
-rw-r--r--include/exec/cpu_ldst.h28
1 files changed, 25 insertions, 3 deletions
diff --git a/include/exec/cpu_ldst.h b/include/exec/cpu_ldst.h
index 0e825ea..1673287 100644
--- a/include/exec/cpu_ldst.h
+++ b/include/exec/cpu_ldst.h
@@ -244,9 +244,31 @@ uint64_t helper_ldq_cmmu(CPUArchState *env, target_ulong addr, int mmu_idx);
#undef MEMSUFFIX
#endif /* (NB_MMU_MODES >= 6) */
-#if (NB_MMU_MODES > 6)
-#error "NB_MMU_MODES > 6 is not supported for now"
-#endif /* (NB_MMU_MODES > 6) */
+#if (NB_MMU_MODES >= 7) && defined(MMU_MODE6_SUFFIX)
+
+#define CPU_MMU_INDEX 6
+#define MEMSUFFIX MMU_MODE6_SUFFIX
+#define DATA_SIZE 1
+#include "exec/cpu_ldst_template.h"
+
+#define DATA_SIZE 2
+#include "exec/cpu_ldst_template.h"
+
+#define DATA_SIZE 4
+#include "exec/cpu_ldst_template.h"
+
+#define DATA_SIZE 8
+#include "exec/cpu_ldst_template.h"
+#undef CPU_MMU_INDEX
+#undef MEMSUFFIX
+#endif /* (NB_MMU_MODES >= 7) */
+
+#if (NB_MMU_MODES > 7)
+/* Note that supporting NB_MMU_MODES == 9 would require
+ * changes to at least the ARM TCG backend.
+ */
+#error "NB_MMU_MODES > 7 is not supported for now"
+#endif /* (NB_MMU_MODES > 7) */
/* these access are slower, they must be as rare as possible */
#define CPU_MMU_INDEX (cpu_mmu_index(env))
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