On 10/9/24 08:08, Richard Henderson wrote:
Remove force_mmio and place the expression into the IF
expression, behind the short-circuit logic expressions
that might eliminate its computation.
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
accel/tcg/cputlb.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c
index 561f66c723..59ee766d51 100644
--- a/accel/tcg/cputlb.c
+++ b/accel/tcg/cputlb.c
@@ -1403,7 +1403,6 @@ static int probe_access_internal(CPUState *cpu, vaddr
addr,
uint64_t tlb_addr = tlb_read_idx(entry, access_type);
vaddr page_addr = addr & TARGET_PAGE_MASK;
int flags = TLB_FLAGS_MASK & ~TLB_FORCE_SLOW;
- bool force_mmio = check_mem_cbs && cpu_plugin_mem_cbs_enabled(cpu);
CPUTLBEntryFull *full;
if (!tlb_hit_page(tlb_addr, page_addr)) {
@@ -1434,9 +1433,14 @@ static int probe_access_internal(CPUState *cpu, vaddr
addr,
*pfull = full = &cpu->neg.tlb.d[mmu_idx].fulltlb[index];
flags |= full->slow_flags[access_type];
- /* Fold all "mmio-like" bits into TLB_MMIO. This is not RAM. */
- if (unlikely(flags & ~(TLB_WATCHPOINT | TLB_NOTDIRTY | TLB_CHECK_ALIGNED))
- || (access_type != MMU_INST_FETCH && force_mmio)) {
+ /*
+ * Fold all "mmio-like" bits, and required plugin callbacks, to TLB_MMIO.
+ * These cannot be treated as RAM.
+ */
+ if ((flags & ~(TLB_WATCHPOINT | TLB_NOTDIRTY | TLB_CHECK_ALIGNED))
+ || (access_type != MMU_INST_FETCH
+ && check_mem_cbs
+ && cpu_plugin_mem_cbs_enabled(cpu))) {
*phost = NULL;
return TLB_MMIO;
}
Reviewed-by: Pierrick Bouvier <pierrick.bouv...@linaro.org>