mii/qemu
1
0
Fork 0
mirror of https://github.com/mii443/qemu.git synced 2025-12-03 11:08:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

tcg/tci: Reuse tci_args_l for goto_tb

Browse Source 
Convert to indirect jumps, as it's less complicated.
Then we just have a pointer to the tb address at which
the chain is stored, from which we read.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson
2021-01-29 22:11:43 -10:00
parent 158d38737b
commit 1670a2b9bb
3 changed files with 9 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
tcg/tci.c
View File

@@ -818,13 +818,11 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
return (uintptr_t)ptr;
case INDEX_op_goto_tb:
/* Jump address is aligned */
tb_ptr = QEMU_ALIGN_PTR_UP(tb_ptr, 4);
t0 = qatomic_read((int32_t *)tb_ptr);
tb_ptr += sizeof(int32_t);
tci_args_l(&tb_ptr, &ptr);
tci_assert(tb_ptr == old_code_ptr + op_size);
tb_ptr += (int32_t)t0;
tb_ptr = *(void **)ptr;
continue;
case INDEX_op_qemu_ld_i32:
t0 = *tb_ptr++;
taddr = tci_read_ulong(regs, &tb_ptr);