exec/cpu-all: extract tlb flags defines to exec/tlb-flags.h

Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250320223002.2915728-3-pierrick.bouvier@linaro.org>
This commit is contained in:
Pierrick Bouvier 2025-03-20 15:29:34 -07:00 committed by Richard Henderson
parent 8916c373a3
commit 4d43552abe
14 changed files with 101 additions and 63 deletions

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@ -34,6 +34,7 @@
#include "qemu/error-report.h"
#include "exec/log.h"
#include "exec/helper-proto-common.h"
#include "exec/tlb-flags.h"
#include "qemu/atomic.h"
#include "qemu/atomic128.h"
#include "tb-internal.h"

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@ -21,6 +21,7 @@
#include "disas/disas.h"
#include "exec/vaddr.h"
#include "exec/exec-all.h"
#include "exec/tlb-flags.h"
#include "tcg/tcg.h"
#include "qemu/bitops.h"
#include "qemu/rcu.h"

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@ -35,69 +35,6 @@ CPUArchState *cpu_copy(CPUArchState *env);
#include "cpu.h"
#ifdef CONFIG_USER_ONLY
/*
* Allow some level of source compatibility with softmmu. We do not
* support any of the more exotic features, so only invalid pages may
* be signaled by probe_access_flags().
*/
#define TLB_INVALID_MASK (1 << (TARGET_PAGE_BITS_MIN - 1))
#define TLB_MMIO (1 << (TARGET_PAGE_BITS_MIN - 2))
#define TLB_WATCHPOINT 0
#else
/*
* Flags stored in the low bits of the TLB virtual address.
* These are defined so that fast path ram access is all zeros.
* The flags all must be between TARGET_PAGE_BITS and
* maximum address alignment bit.
*
* Use TARGET_PAGE_BITS_MIN so that these bits are constant
* when TARGET_PAGE_BITS_VARY is in effect.
*
* The count, if not the placement of these bits is known
* to tcg/tcg-op-ldst.c, check_max_alignment().
*/
/* Zero if TLB entry is valid. */
#define TLB_INVALID_MASK (1 << (TARGET_PAGE_BITS_MIN - 1))
/* Set if TLB entry references a clean RAM page. The iotlb entry will
contain the page physical address. */
#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. */
#define TLB_FORCE_SLOW (1 << (TARGET_PAGE_BITS_MIN - 5))
/*
* Use this mask to check interception with an alignment mask
* in a TCG backend.
*/
#define TLB_FLAGS_MASK \
(TLB_INVALID_MASK | TLB_NOTDIRTY | TLB_MMIO \
| TLB_FORCE_SLOW | TLB_DISCARD_WRITE)
/*
* Flags stored in CPUTLBEntryFull.slow_flags[x].
* TLB_FORCE_SLOW must be set in CPUTLBEntry.addr_idx[x].
*/
/* Set if TLB entry requires byte swap. */
#define TLB_BSWAP (1 << 0)
/* Set if TLB entry contains a watchpoint. */
#define TLB_WATCHPOINT (1 << 1)
/* Set if TLB entry requires aligned accesses. */
#define TLB_CHECK_ALIGNED (1 << 2)
#define TLB_SLOW_FLAGS_MASK (TLB_BSWAP | TLB_WATCHPOINT | TLB_CHECK_ALIGNED)
/* The two sets of flags must not overlap. */
QEMU_BUILD_BUG_ON(TLB_FLAGS_MASK & TLB_SLOW_FLAGS_MASK);
#endif /* !CONFIG_USER_ONLY */
/* Validate correct placement of CPUArchState. */
QEMU_BUILD_BUG_ON(offsetof(ArchCPU, parent_obj) != 0);
QEMU_BUILD_BUG_ON(offsetof(ArchCPU, env) != sizeof(CPUState));

89
include/exec/tlb-flags.h Normal file
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@ -0,0 +1,89 @@
/*
* TLB flags definition
*
* Copyright (c) 2003 Fabrice Bellard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TLB_FLAGS_H
#define TLB_FLAGS_H
#include "exec/cpu-defs.h"
#ifdef CONFIG_USER_ONLY
/*
* Allow some level of source compatibility with softmmu. We do not
* support any of the more exotic features, so only invalid pages may
* be signaled by probe_access_flags().
*/
#define TLB_INVALID_MASK (1 << (TARGET_PAGE_BITS_MIN - 1))
#define TLB_MMIO (1 << (TARGET_PAGE_BITS_MIN - 2))
#define TLB_WATCHPOINT 0
#else
/*
* Flags stored in the low bits of the TLB virtual address.
* These are defined so that fast path ram access is all zeros.
* The flags all must be between TARGET_PAGE_BITS and
* maximum address alignment bit.
*
* Use TARGET_PAGE_BITS_MIN so that these bits are constant
* when TARGET_PAGE_BITS_VARY is in effect.
*
* The count, if not the placement of these bits is known
* to tcg/tcg-op-ldst.c, check_max_alignment().
*/
/* Zero if TLB entry is valid. */
#define TLB_INVALID_MASK (1 << (TARGET_PAGE_BITS_MIN - 1))
/*
* Set if TLB entry references a clean RAM page. The iotlb entry will
* contain the page physical address.
*/
#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. */
#define TLB_FORCE_SLOW (1 << (TARGET_PAGE_BITS_MIN - 5))
/*
* Use this mask to check interception with an alignment mask
* in a TCG backend.
*/
#define TLB_FLAGS_MASK \
(TLB_INVALID_MASK | TLB_NOTDIRTY | TLB_MMIO \
| TLB_FORCE_SLOW | TLB_DISCARD_WRITE)
/*
* Flags stored in CPUTLBEntryFull.slow_flags[x].
* TLB_FORCE_SLOW must be set in CPUTLBEntry.addr_idx[x].
*/
/* Set if TLB entry requires byte swap. */
#define TLB_BSWAP (1 << 0)
/* Set if TLB entry contains a watchpoint. */
#define TLB_WATCHPOINT (1 << 1)
/* Set if TLB entry requires aligned accesses. */
#define TLB_CHECK_ALIGNED (1 << 2)
#define TLB_SLOW_FLAGS_MASK (TLB_BSWAP | TLB_WATCHPOINT | TLB_CHECK_ALIGNED)
/* The two sets of flags must not overlap. */
QEMU_BUILD_BUG_ON(TLB_FLAGS_MASK & TLB_SLOW_FLAGS_MASK);
#endif /* !CONFIG_USER_ONLY */
#endif /* TLB_FLAGS_H */

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@ -11,6 +11,7 @@
#include "exec/cpu-all.h"
#include "accel/tcg/cpu-mmu-index.h"
#include "exec/exec-all.h"
#include "exec/tlb-flags.h"
#include "semihosting/uaccess.h"
void *uaccess_lock_user(CPUArchState *env, target_ulong addr,

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@ -12,6 +12,7 @@
#include "qemu/main-loop.h"
#include "exec/exec-all.h"
#include "exec/page-protection.h"
#include "exec/tlb-flags.h"
#include "cpu.h"
#include "internals.h"
#include "cpu-features.h"

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@ -31,6 +31,7 @@
#include "exec/cpu-common.h"
#include "exec/exec-all.h"
#include "exec/cpu_ldst.h"
#include "exec/tlb-flags.h"
#include "qemu/int128.h"
#include "qemu/atomic128.h"
#include "fpu/softfloat.h"

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@ -31,6 +31,7 @@
#endif
#include "exec/cpu_ldst.h"
#include "exec/helper-proto.h"
#include "exec/tlb-flags.h"
#include "accel/tcg/cpu-ops.h"
#include "qapi/error.h"
#include "qemu/guest-random.h"

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@ -23,6 +23,7 @@
#include "exec/exec-all.h"
#include "exec/page-protection.h"
#include "exec/helper-proto.h"
#include "exec/tlb-flags.h"
#include "tcg/tcg-gvec-desc.h"
#include "fpu/softfloat.h"
#include "tcg/tcg.h"

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@ -22,6 +22,7 @@
#include "exec/cpu_ldst.h"
#include "exec/cputlb.h"
#include "exec/page-protection.h"
#include "exec/tlb-flags.h"
#include "tcg/helper-tcg.h"
typedef struct TranslateParams {

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@ -25,6 +25,7 @@
#include "exec/cputlb.h"
#include "exec/cpu_ldst.h"
#include "exec/helper-proto.h"
#include "exec/tlb-flags.h"
#include "trace.h"
/* Exceptions processing helpers */

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@ -25,6 +25,7 @@
#include "exec/cpu_ldst.h"
#include "exec/page-protection.h"
#include "exec/helper-proto.h"
#include "exec/tlb-flags.h"
#include "fpu/softfloat.h"
#include "tcg/tcg-gvec-desc.h"
#include "internals.h"

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@ -29,6 +29,7 @@
#include "exec/cputlb.h"
#include "exec/page-protection.h"
#include "exec/cpu_ldst.h"
#include "exec/tlb-flags.h"
#include "accel/tcg/cpu-ops.h"
#include "qemu/int128.h"
#include "qemu/atomic128.h"

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@ -23,6 +23,7 @@
#include "exec/cputlb.h"
#include "accel/tcg/cpu-mmu-index.h"
#include "exec/page-protection.h"
#include "exec/tlb-flags.h"
#include "qemu/qemu-print.h"
#include "trace.h"