diff options
Diffstat (limited to 'include/exec')
| -rw-r--r-- | include/exec/cpu-all.h | 5 | ||||
| -rw-r--r-- | include/exec/memop.h | 37 | ||||
| -rw-r--r-- | include/exec/memory.h | 9 | ||||
| -rw-r--r-- | include/exec/plugin-gen.h | 4 | ||||
| -rw-r--r-- | include/exec/target_page.h | 1 | ||||
| -rw-r--r-- | include/exec/user/guest-base.h | 12 |
6 files changed, 60 insertions, 8 deletions
diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h index ad824fee52..78d258af44 100644 --- a/include/exec/cpu-all.h +++ b/include/exec/cpu-all.h @@ -84,11 +84,8 @@ #if defined(CONFIG_USER_ONLY) #include "exec/user/abitypes.h" +#include "exec/user/guest-base.h" -/* On some host systems the guest address space is reserved on the host. - * This allows the guest address space to be offset to a convenient location. - */ -extern uintptr_t guest_base; extern bool have_guest_base; /* diff --git a/include/exec/memop.h b/include/exec/memop.h index 07f5f88188..a86dc6743a 100644 --- a/include/exec/memop.h +++ b/include/exec/memop.h @@ -72,6 +72,43 @@ typedef enum MemOp { MO_ALIGN_64 = 6 << MO_ASHIFT, MO_ALIGN = MO_AMASK, + /* + * MO_ATOM_* describes the atomicity requirements of the operation: + * MO_ATOM_IFALIGN: the operation must be single-copy atomic if it + * is aligned; if unaligned there is no atomicity. + * MO_ATOM_IFALIGN_PAIR: the entire operation may be considered to + * be a pair of half-sized operations which are packed together + * for convenience, with single-copy atomicity on each half if + * the half is aligned. + * This is the atomicity e.g. of Arm pre-FEAT_LSE2 LDP. + * MO_ATOM_WITHIN16: the operation is single-copy atomic, even if it + * is unaligned, so long as it does not cross a 16-byte boundary; + * if it crosses a 16-byte boundary there is no atomicity. + * This is the atomicity e.g. of Arm FEAT_LSE2 LDR. + * MO_ATOM_WITHIN16_PAIR: the entire operation is single-copy atomic, + * if it happens to be within a 16-byte boundary, otherwise it + * devolves to a pair of half-sized MO_ATOM_WITHIN16 operations. + * Depending on alignment, one or both will be single-copy atomic. + * This is the atomicity e.g. of Arm FEAT_LSE2 LDP. + * MO_ATOM_SUBALIGN: the operation is single-copy atomic by parts + * by the alignment. E.g. if the address is 0 mod 4, then each + * 4-byte subobject is single-copy atomic. + * This is the atomicity e.g. of IBM Power. + * MO_ATOM_NONE: the operation has no atomicity requirements. + * + * Note the default (i.e. 0) value is single-copy atomic to the + * size of the operation, if aligned. This retains the behaviour + * from before this field was introduced. + */ + MO_ATOM_SHIFT = 8, + MO_ATOM_IFALIGN = 0 << MO_ATOM_SHIFT, + MO_ATOM_IFALIGN_PAIR = 1 << MO_ATOM_SHIFT, + MO_ATOM_WITHIN16 = 2 << MO_ATOM_SHIFT, + MO_ATOM_WITHIN16_PAIR = 3 << MO_ATOM_SHIFT, + MO_ATOM_SUBALIGN = 4 << MO_ATOM_SHIFT, + MO_ATOM_NONE = 5 << MO_ATOM_SHIFT, + MO_ATOM_MASK = 7 << MO_ATOM_SHIFT, + /* Combinations of the above, for ease of use. */ MO_UB = MO_8, MO_UW = MO_16, diff --git a/include/exec/memory.h b/include/exec/memory.h index e45ce6061f..6f24a3dd46 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -934,8 +934,11 @@ struct MemoryListener { * its @log_sync must be NULL. Vice versa. * * @listener: The #MemoryListener. + * @last_stage: The last stage to synchronize the log during migration. + * The caller should gurantee that the synchronization with true for + * @last_stage is triggered for once after all VCPUs have been stopped. */ - void (*log_sync_global)(MemoryListener *listener); + void (*log_sync_global)(MemoryListener *listener, bool last_stage); /** * @log_clear: @@ -2422,8 +2425,10 @@ MemoryRegionSection memory_region_find(MemoryRegion *mr, * memory_global_dirty_log_sync: synchronize the dirty log for all memory * * Synchronizes the dirty page log for all address spaces. + * + * @last_stage: whether this is the last stage of live migration */ -void memory_global_dirty_log_sync(void); +void memory_global_dirty_log_sync(bool last_stage); /** * memory_global_dirty_log_sync: synchronize the dirty log for all memory diff --git a/include/exec/plugin-gen.h b/include/exec/plugin-gen.h index 5f5506f1cc..3af0168e65 100644 --- a/include/exec/plugin-gen.h +++ b/include/exec/plugin-gen.h @@ -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) diff --git a/include/exec/target_page.h b/include/exec/target_page.h index 96726c36a4..bbf37aea17 100644 --- a/include/exec/target_page.h +++ b/include/exec/target_page.h @@ -18,4 +18,5 @@ size_t qemu_target_page_size(void); int qemu_target_page_bits(void); int qemu_target_page_bits_min(void); +size_t qemu_target_pages_to_MiB(size_t pages); #endif diff --git a/include/exec/user/guest-base.h b/include/exec/user/guest-base.h new file mode 100644 index 0000000000..afe2ab7fbb --- /dev/null +++ b/include/exec/user/guest-base.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Declaration of guest_base. + * Copyright (c) 2003 Fabrice Bellard + */ + +#ifndef EXEC_USER_GUEST_BASE_H +#define EXEC_USER_GUEST_BASE_H + +extern uintptr_t guest_base; + +#endif |