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accel/tcg: Move can_do_io to CPUNegativeOffsetState

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Minimize the displacement to can_do_io, since it may
be touched at the start of each TranslationBlock.
It fits into other padding within the substructure.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-09-15 15:41:39 -07:00
parent e62de98111
commit 464dacf609
14 changed files with 21 additions and 21 deletions
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6
include/hw/core/cpu.h
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@ -351,6 +351,7 @@ typedef union IcountDecr {
typedef struct CPUNegativeOffsetState {
CPUTLB tlb;
IcountDecr icount_decr;
bool can_do_io;
} CPUNegativeOffsetState;
typedef struct CPUBreakpoint {
@ -420,9 +421,7 @@ struct qemu_work_item;
* @crash_occurred: Indicates the OS reported a crash (panic) for this CPU
* @singlestep_enabled: Flags for single-stepping.
* @icount_extra: Instructions until next timer event.
* @can_do_io: Nonzero if memory-mapped IO is safe. Deterministic execution
* requires that IO only be performed on the last instruction of a TB
* so that interrupts take effect immediately.
* @neg.can_do_io: True if memory-mapped IO is allowed.
* @cpu_ases: Pointer to array of CPUAddressSpaces (which define the
* AddressSpaces this CPU has)
* @num_ases: number of CPUAddressSpaces in @cpu_ases
@ -547,7 +546,6 @@ struct CPUState {
int cluster_index;
uint32_t tcg_cflags;
uint32_t halted;
uint32_t can_do_io;
int32_t exception_index;
AccelCPUState *accel;