Patchwork [01/13] tcg: extend max tcg opcodes when using 64-on-32bit

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Submitter Alexander Graf
Date May 4, 2011, 12:09 p.m.
Message ID <1304510982-30810-2-git-send-email-agraf@suse.de>
Download mbox | patch
Permalink /patch/94016/
State New
Headers show

Comments

Alexander Graf - May 4, 2011, 12:09 p.m.
When running a 64 bit guest on a 32 bit host, we tend to use more TCG ops
than on a 64 bit host. Reflect that in the reserved opcode amount constant.

Signed-off-by: Alexander Graf <agraf@suse.de>

---

v4 -> v5:

  - only increase MAX_OP_PER_INSTR when running 64-on-32
---
 exec-all.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

Patch

diff --git a/exec-all.h b/exec-all.h
index 7c2d29f..14b0895 100644
--- a/exec-all.h
+++ b/exec-all.h
@@ -43,7 +43,11 @@  typedef ram_addr_t tb_page_addr_t;
 typedef struct TranslationBlock TranslationBlock;
 
 /* XXX: make safe guess about sizes */
+#if (HOST_LONG_BITS == 32) && (TARGET_LONG_BITS == 64)
+#define MAX_OP_PER_INSTR 128
+#else
 #define MAX_OP_PER_INSTR 96
+#endif
 
 #if HOST_LONG_BITS == 32
 #define MAX_OPC_PARAM_PER_ARG 2