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include/exec: Move TLB_MMIO, TLB_DISCARD_WRITE to slow flags

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Recover two bits from the inline flags.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2025-03-25 20:22:14 -07:00
parent f05d251906
commit 24b5e0fdb5
1 changed files with 9 additions and 8 deletions
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17
include/exec/tlb-flags.h
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@ -53,20 +53,15 @@
* contain the page physical address. * contain the page physical address.
*/ */
#define TLB_NOTDIRTY (1 << (TARGET_PAGE_BITS_MIN - 2)) #define TLB_NOTDIRTY (1 << (TARGET_PAGE_BITS_MIN - 2))
/* Set if TLB entry is an IO callback. */
#define TLB_MMIO (1 << (TARGET_PAGE_BITS_MIN - 3))
/* Set if TLB entry writes ignored. */
#define TLB_DISCARD_WRITE (1 << (TARGET_PAGE_BITS_MIN - 4))
/* Set if the slow path must be used; more flags in CPUTLBEntryFull. */ /* Set if the slow path must be used; more flags in CPUTLBEntryFull. */
#define TLB_FORCE_SLOW (1 << (TARGET_PAGE_BITS_MIN - 5)) #define TLB_FORCE_SLOW (1 << (TARGET_PAGE_BITS_MIN - 3))
/* /*
* Use this mask to check interception with an alignment mask * Use this mask to check interception with an alignment mask
* in a TCG backend. * in a TCG backend.
*/ */
#define TLB_FLAGS_MASK \ #define TLB_FLAGS_MASK \
(TLB_INVALID_MASK | TLB_NOTDIRTY | TLB_MMIO \ (TLB_INVALID_MASK | TLB_NOTDIRTY | TLB_FORCE_SLOW)
| TLB_FORCE_SLOW | TLB_DISCARD_WRITE)
/* /*
* Flags stored in CPUTLBEntryFull.slow_flags[x]. * Flags stored in CPUTLBEntryFull.slow_flags[x].
@ -78,8 +73,14 @@
#define TLB_WATCHPOINT (1 << 1) #define TLB_WATCHPOINT (1 << 1)
/* Set if TLB entry requires aligned accesses. */ /* Set if TLB entry requires aligned accesses. */
#define TLB_CHECK_ALIGNED (1 << 2) #define TLB_CHECK_ALIGNED (1 << 2)
/* Set if TLB entry writes ignored. */
#define TLB_DISCARD_WRITE (1 << 3)
/* Set if TLB entry is an IO callback. */
#define TLB_MMIO (1 << 4)
#define TLB_SLOW_FLAGS_MASK (TLB_BSWAP | TLB_WATCHPOINT | TLB_CHECK_ALIGNED) #define TLB_SLOW_FLAGS_MASK \
(TLB_BSWAP | TLB_WATCHPOINT | TLB_CHECK_ALIGNED | \
TLB_DISCARD_WRITE | TLB_MMIO)
/* The two sets of flags must not overlap. */ /* The two sets of flags must not overlap. */
QEMU_BUILD_BUG_ON(TLB_FLAGS_MASK & TLB_SLOW_FLAGS_MASK); QEMU_BUILD_BUG_ON(TLB_FLAGS_MASK & TLB_SLOW_FLAGS_MASK);