In subpage_init(), we will set subpage->sub_section to
PHYS_SECTION_UNASSIGNED by subpage_register. Since
PHYS_SECTION_UNASSIGNED is defined to be 0, and we allocate subpage with
g_malloc0, this means subpage->sub_section is already initialized to 0.
This patch removes the redundant setup for a new subpage and also fix
the code style.
Backports commit b797ab1a15ba8d2b2fc4ec3e1f24d755f6855d05 from qemu
The purpose of these two MAX here is to get the maximum of these three
variables:
A: map->nodes_nb + nodes
B: map->nodes_nb_alloc
C: alloc_hint
We can write it like MAX(A, B, C). Since the if condition says A > B,
this means MAX(A, B, C) = MAX(A, C).
This patch just simplify the calculation a bit.
Backports commit c95cfd040078db8017f74fd3a4d6f798385d960c from qemu
Function phys_page_set() and phys_page_set_level() 's argument *nb*
stands for number of pages to set instead of hardware address.
This would be more proper to use uint64_t instead of hwaddr for its
type.
Backports commit 56b15076805a29673c1a90ea9c3ebef25bfcc912 from qemu
Switch the MIPS target from the old unassigned_access hook to the new
do_transaction_failed hook.
Unlike the old hook, do_transaction_failed is only ever called from
the TCG memory access paths, so there is no need for the "ignore this
if we're using KVM" hack that we were previously using to work around
the way unassigned_access was called for all kinds of memory accesses
to unassigned physical addresses.
The MIPS target does not ever do direct memory reads by physical
address (via either ldl_phys etc or address_space_ldl etc), so the
only memory accesses this affects are the 'normal' guest loads and
stores, which will be handled by the new hook; their behaviour is
unchanged.
Backports commit 4f02a06d50ef0081089ed8cb3ec7c7986e3c95f8 from qemu
Document the use of g_autofree and g_autoptr in glib for automatic
freeing of memory.
Backports commit 821f2967562a1fdc7e52a644963163e6917c4293 from qemu
The split of information between the two docs is rather arbitary and
unclear. It is simpler for contributors if all the information is in
one file.
Backports commit 637f39568fc0bd9848fd9d225d52ab0c4c443ed3 from qemu
There are only two remaining uses of gen_bx_im. In each case, we
know the destination mode -- not changing in the case of gen_jmp
or changing in the case of trans_BLX_i. Use this to simplify the
surrounding code.
For trans_BLX_i, use gen_jmp for the actual branch. For gen_jmp,
use gen_set_pc_im to set up the single-step.
Backports commit eac2f39602e0423adf56be410c9a22c31fec9a81 from qemu
Now that all callers pass a constant value, split the switch
statement into the individual trans_* functions.
Backports commit 279de61a21a1622cb875ead82d6e78c989ba2966 from qemu
Add a check for ARMv6 in trans_CPS. We had this correct in
the T16 path, but had previously forgotten the check on the
A32 and T32 paths.
Backports commit 20556e7bd6111266fbf1d81e4ff7a89bfa5795a7 from qemu
Fold away all of the cases that now just goto illegal_op,
because all of their internal bits are now in decodetree.
Backports commit 590057d969a54de5d97261701c5702b3bebc9c07 from qemu
Fold away all of the cases that now just goto illegal_op,
because all of their internal bits are now in decodetree.
Backports commit f843e77144c9334e244a422848177f2fbef5eb05 from qemu
We have been using store_reg and not store_reg_for_load when writing
back a loaded value into the base register. At first glance this is
incorrect when base == pc, however that case is UNPREDICTABLE.
Backports commit b0e382b8cf365fed8b8c43482029ac7655961a85 from qemu
This has been a TODO item for quite a while. The minimum bit
count for A32 and T16 is 1, and for T32 is 2.
Backports commit 4b222545dbf30b60c033e1cd6eddda612575fd8c from qemu
