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accel/tcg: Widen plugin_gen_empty_mem_callback to i64

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Since we do this inside gen_empty_mem_cb anyway, let's
do this earlier inside tcg expansion.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-03-13 17:35:29 -07:00
parent eb9d02f24b
commit fcdab382c8
3 changed files with 25 additions and 16 deletions
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9
accel/tcg/plugin-gen.c
View File

@ -124,23 +124,20 @@ static void gen_empty_inline_cb(void)
tcg_temp_free_i64(val);
}
static void gen_empty_mem_cb(TCGv addr, uint32_t info)
static void gen_empty_mem_cb(TCGv_i64 addr, uint32_t info)
{
TCGv_i32 cpu_index = tcg_temp_ebb_new_i32();
TCGv_i32 meminfo = tcg_temp_ebb_new_i32();
TCGv_i64 addr64 = tcg_temp_ebb_new_i64();
TCGv_ptr udata = tcg_temp_ebb_new_ptr();
tcg_gen_movi_i32(meminfo, info);
tcg_gen_movi_ptr(udata, 0);
tcg_gen_ld_i32(cpu_index, cpu_env,
-offsetof(ArchCPU, env) + offsetof(CPUState, cpu_index));
tcg_gen_extu_tl_i64(addr64, addr);
gen_helper_plugin_vcpu_mem_cb(cpu_index, meminfo, addr64, udata);
gen_helper_plugin_vcpu_mem_cb(cpu_index, meminfo, addr, udata);
tcg_temp_free_ptr(udata);
tcg_temp_free_i64(addr64);
tcg_temp_free_i32(meminfo);
tcg_temp_free_i32(cpu_index);
}
@ -197,7 +194,7 @@ static void plugin_gen_empty_callback(enum plugin_gen_from from)
}
}
void plugin_gen_empty_mem_callback(TCGv addr, uint32_t info)
void plugin_gen_empty_mem_callback(TCGv_i64 addr, uint32_t info)
{
enum qemu_plugin_mem_rw rw = get_plugin_meminfo_rw(info);

4
include/exec/plugin-gen.h
View File

@ -27,7 +27,7 @@ void plugin_gen_insn_start(CPUState *cpu, const struct DisasContextBase *db);
void plugin_gen_insn_end(void);
void plugin_gen_disable_mem_helpers(void);
void plugin_gen_empty_mem_callback(TCGv addr, uint32_t info);
void plugin_gen_empty_mem_callback(TCGv_i64 addr, uint32_t info);
static inline void plugin_insn_append(abi_ptr pc, const void *from, size_t size)
{
@ -69,7 +69,7 @@ static inline void plugin_gen_tb_end(CPUState *cpu)
static inline void plugin_gen_disable_mem_helpers(void)
{ }
static inline void plugin_gen_empty_mem_callback(TCGv addr, uint32_t info)
static inline void plugin_gen_empty_mem_callback(TCGv_i64 addr, uint32_t info)
{ }
static inline void plugin_insn_append(abi_ptr pc, const void *from, size_t size)

28
tcg/tcg-op-ldst.c
View File

@ -115,13 +115,13 @@ static void tcg_gen_req_mo(TCGBar type)
}
/* Only required for loads, where value might overlap addr. */
static TCGv plugin_maybe_preserve_addr(TCGv vaddr)
static TCGv_i64 plugin_maybe_preserve_addr(TCGv vaddr)
{
#ifdef CONFIG_PLUGIN
if (tcg_ctx->plugin_insn != NULL) {
/* Save a copy of the vaddr for use after a load. */
TCGv temp = tcg_temp_new();
tcg_gen_mov_tl(temp, vaddr);
TCGv_i64 temp = tcg_temp_ebb_new_i64();
tcg_gen_extu_tl_i64(temp, vaddr);
return temp;
}
#endif
@ -129,16 +129,28 @@ static TCGv plugin_maybe_preserve_addr(TCGv vaddr)
}
static void
plugin_gen_mem_callbacks(TCGv copy_addr, TCGv orig_addr, MemOpIdx oi,
plugin_gen_mem_callbacks(TCGv_i64 copy_addr, TCGv orig_addr, MemOpIdx oi,
enum qemu_plugin_mem_rw rw)
{
#ifdef CONFIG_PLUGIN
if (tcg_ctx->plugin_insn != NULL) {
qemu_plugin_meminfo_t info = make_plugin_meminfo(oi, rw);
plugin_gen_empty_mem_callback(copy_addr ? : orig_addr, info);
#if TARGET_LONG_BITS == 64
if (copy_addr) {
tcg_temp_free(copy_addr);
plugin_gen_empty_mem_callback(copy_addr, info);
tcg_temp_free_i64(copy_addr);
} else {
plugin_gen_empty_mem_callback(orig_addr, info);
}
#else
if (!copy_addr) {
copy_addr = tcg_temp_ebb_new_i64();
tcg_gen_extu_tl_i64(copy_addr, orig_addr);
}
plugin_gen_empty_mem_callback(copy_addr, info);
tcg_temp_free_i64(copy_addr);
#endif
}
#endif
}
@ -147,7 +159,7 @@ void tcg_gen_qemu_ld_i32(TCGv_i32 val, TCGv addr, TCGArg idx, MemOp memop)
{
MemOp orig_memop;
MemOpIdx oi;
TCGv copy_addr;
TCGv_i64 copy_addr;
tcg_gen_req_mo(TCG_MO_LD_LD | TCG_MO_ST_LD);
memop = tcg_canonicalize_memop(memop, 0, 0);
@ -223,7 +235,7 @@ void tcg_gen_qemu_ld_i64(TCGv_i64 val, TCGv addr, TCGArg idx, MemOp memop)
{
MemOp orig_memop;
MemOpIdx oi;
TCGv copy_addr;
TCGv_i64 copy_addr;
if (TCG_TARGET_REG_BITS == 32 && (memop & MO_SIZE) < MO_64) {
tcg_gen_qemu_ld_i32(TCGV_LOW(val), addr, idx, memop);