unicorn/qemu/include/exec
Peter Maydell 1301becdab
tcg: Support MMU protection regions smaller than TARGET_PAGE_SIZE
Add support for MMU protection regions that are smaller than
TARGET_PAGE_SIZE. We do this by marking the TLB entry for those
pages with a flag TLB_RECHECK. This flag causes us to always
take the slow-path for accesses. In the slow path we can then
special case them to always call tlb_fill() again, so we have
the correct information for the exact address being accessed.

This change allows us to handle reading and writing from small
regions; we cannot deal with execution from the small region.

Backports commit 55df6fcf5476b44bc1b95554e686ab3e91d725c5 from qemu
2018-11-16 21:35:54 -05:00
..
address-spaces.h Clean up header guards that don't match their file name 2018-02-25 04:18:42 -05:00
cpu_ldst_template.h cputlb: read CPUTLBEntry.addr_write atomically 2018-10-23 15:37:43 -04:00
cpu_ldst.h cputlb: read CPUTLBEntry.addr_write atomically 2018-10-23 15:37:43 -04:00
cpu-all.h tcg: Support MMU protection regions smaller than TARGET_PAGE_SIZE 2018-11-16 21:35:54 -05:00
cpu-common.h cpu: Introduce a wrapper for tlb_flush() that can be used in common code 2018-03-03 21:24:55 -05:00
cpu-defs.h cpu-defs.h: Document CPUIOTLBEntry 'addr' field 2018-06-15 12:07:39 -04:00
cputlb.h exec: Drop unnecessary code for unicorn 2018-03-12 10:11:46 -04:00
exec-all.h Partial backport of: exec.c: Handle IOMMUs in address_space_translate_for_iotlb() 2018-11-16 21:24:55 -05:00
gen-icount.h tcg: Pass tb and index to tcg_gen_exit_tb separately 2018-06-07 11:56:32 -04:00
helper-gen.h target/arm: Implement SVE Integer Multiply-Add Group 2018-05-20 04:35:36 -04:00
helper-head.h tcg: Fix helper function vs host abi for float16 2018-06-02 10:10:12 -04:00
helper-proto.h tcg: Allow 6 arguments to TCG helpers 2018-03-17 18:29:04 -04:00
helper-tcg.h tcg: Allow 6 arguments to TCG helpers 2018-03-17 18:29:04 -04:00
hwaddr.h qemu-common: push cpu.h inclusion out of qemu-common.h 2018-02-24 01:50:56 -05:00
ioport.h hw: remove pio_addr_t 2018-02-24 02:43:16 -05:00
memattrs.h memory.h: Move MemTxResult type to memattrs.h 2018-03-04 13:10:47 -05:00
memory-internal.h memory: Rename mem_begin/mem_commit/mem_add helpers 2018-03-11 21:36:50 -04:00
memory.h memory: learn about non-volatile memory region 2018-11-11 08:50:39 -05:00
ram_addr.h exec: Drop unnecessary code for unicorn 2018-03-12 10:11:46 -04:00
ramlist.h memory: RCU ram_list.dirty_memory[] for safe RAM hotplug 2018-02-22 15:38:03 -05:00
semihost.h exec: Add semihosting stubs 2018-02-17 15:23:33 -05:00
tb-context.h tcg: allocate TB structs before the corresponding translated code 2018-03-03 17:05:49 -05:00
tb-hash-xx.h Clean up ill-advised or unusual header guards 2018-02-25 04:22:46 -05:00
tb-hash.h tb-hash: improve tb_jmp_cache hash function in user mode 2018-03-03 14:11:29 -05:00
tb-lookup.h exec-all: bring tb->invalid into tb->cflags 2018-03-05 02:46:21 -05:00
translator.h translator: merge max_insns into DisasContextBase 2018-05-11 13:59:17 -04:00