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tcg: code_bitmap and code_write_count are not used by user-mode emulation 

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[Sergey Fedorov: eliminate the field entirely in user-mode]
Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org>
Reviewed-by: Richard Henderson  <rth@twiddle.net>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
[rth: merged followup fixup]
Message-Id: <1462982777-4513-1-git-send-email-sergey.fedorov@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
master
Paolo Bonzini 2015-08-11 12:42:55 +02:00 committed by Richard Henderson
parent 90aa39a1cc
commit 6fad459c91
1 changed files with 8 additions and 3 deletions
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11
translate-all.c
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@ -72,11 +72,12 @@
typedef struct PageDesc {
/* list of TBs intersecting this ram page */
TranslationBlock *first_tb;
#ifdef CONFIG_SOFTMMU
/* in order to optimize self modifying code, we count the number
of lookups we do to a given page to use a bitmap */
unsigned int code_write_count;
unsigned long *code_bitmap;
#if defined(CONFIG_USER_ONLY)
#else
unsigned long flags;
#endif
} PageDesc;
@ -783,9 +784,11 @@ void tb_free(TranslationBlock *tb)
static inline void invalidate_page_bitmap(PageDesc *p)
{
#ifdef CONFIG_SOFTMMU
g_free(p->code_bitmap);
p->code_bitmap = NULL;
p->code_write_count = 0;
#endif
}
/* Set to NULL all the 'first_tb' fields in all PageDescs. */
@ -1028,6 +1031,7 @@ void tb_phys_invalidate(TranslationBlock *tb, tb_page_addr_t page_addr)
tcg_ctx.tb_ctx.tb_phys_invalidate_count++;
}
#ifdef CONFIG_SOFTMMU
static void build_page_bitmap(PageDesc *p)
{
int n, tb_start, tb_end;
@ -1056,6 +1060,7 @@ static void build_page_bitmap(PageDesc *p)
tb = tb->page_next[n];
}
}
#endif
/* add the tb in the target page and protect it if necessary
*
@ -1412,6 +1417,7 @@ void tb_invalidate_phys_page_range(tb_page_addr_t start, tb_page_addr_t end,
#endif
}
#ifdef CONFIG_SOFTMMU
/* len must be <= 8 and start must be a multiple of len */
void tb_invalidate_phys_page_fast(tb_page_addr_t start, int len)
{
@ -1449,8 +1455,7 @@ void tb_invalidate_phys_page_fast(tb_page_addr_t start, int len)
tb_invalidate_phys_page_range(start, start + len, 1);
}
}
#if !defined(CONFIG_SOFTMMU)
#else
/* Called with mmap_lock held. */
static void tb_invalidate_phys_page(tb_page_addr_t addr,
uintptr_t pc, void *puc,