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accel/tcg: Disconnect TargetPageDataNode from page size

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Dynamically size the node for the runtime target page size.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-29-richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2024-01-02 12:58:03 +11:00
parent 8c45039f9e
commit 33402cea1f
1 changed files with 8 additions and 5 deletions
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13
accel/tcg/user-exec.c
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@ -864,7 +864,7 @@ tb_page_addr_t get_page_addr_code_hostp(CPUArchState *env, vaddr addr,
typedef struct TargetPageDataNode {
struct rcu_head rcu;
IntervalTreeNode itree;
char data[TPD_PAGES][TARGET_PAGE_DATA_SIZE] __attribute__((aligned));
char data[] __attribute__((aligned));
} TargetPageDataNode;
static IntervalTreeRoot targetdata_root;
@ -902,7 +902,8 @@ void page_reset_target_data(target_ulong start, target_ulong last)
n_last = MIN(last, n->last);
p_len = (n_last + 1 - n_start) >> TARGET_PAGE_BITS;
memset(t->data[p_ofs], 0, p_len * TARGET_PAGE_DATA_SIZE);
memset(t->data + p_ofs * TARGET_PAGE_DATA_SIZE, 0,
p_len * TARGET_PAGE_DATA_SIZE);
}
}
@ -910,7 +911,7 @@ void *page_get_target_data(target_ulong address)
{
IntervalTreeNode *n;
TargetPageDataNode *t;
target_ulong page, region;
target_ulong page, region, p_ofs;
page = address & TARGET_PAGE_MASK;
region = address & TBD_MASK;
@ -926,7 +927,8 @@ void *page_get_target_data(target_ulong address)
mmap_lock();
n = interval_tree_iter_first(&targetdata_root, page, page);
if (!n) {
t = g_new0(TargetPageDataNode, 1);
t = g_malloc0(sizeof(TargetPageDataNode)
+ TPD_PAGES * TARGET_PAGE_DATA_SIZE);
n = &t->itree;
n->start = region;
n->last = region | ~TBD_MASK;
@ -936,7 +938,8 @@ void *page_get_target_data(target_ulong address)
}
t = container_of(n, TargetPageDataNode, itree);
return t->data[(page - region) >> TARGET_PAGE_BITS];
p_ofs = (page - region) >> TARGET_PAGE_BITS;
return t->data + p_ofs * TARGET_PAGE_DATA_SIZE;
}
#else
void page_reset_target_data(target_ulong start, target_ulong last) { }