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unicorn/qemu
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Richard Henderson 00fc847229
target-sparc: Allow 4-byte alignment on fp mem ops 
The cpu is allowed to require stricter alignment on these 8- and 16-byte
operations, and the OS is required to fix up the accesses as necessary,
so the previous code was not wrong.

However, we can easily handle this misalignment for all direct 8-byte
operations and for direct 16-byte loads.

We must retain 16-byte alignment for 16-byte stores, so that we don't have
to probe for writability of a second page before performing the first of
two 8-byte stores. We also retain 8-byte alignment for no-fault loads,
since they are rare and it's not worth extending the helpers for this.

Backports commit cb21b4da6cca1bb4e3f5fefb698fb9e4d00c8f66 from qemu
2018-03-01 08:29:11 -05:00
..
crypto crypto: Clean up includes 2018-02-19 00:47:40 -05:00
default-configs arm64eb: add support for ARM64 big endian. 2017-04-24 23:30:01 +08:00
docs docs: clarify memory region lifecycle 2018-02-12 15:11:21 -05:00
fpu fpu: add mechanism to check for invalid long double formats 2018-02-26 02:27:40 -05:00
hw qdev: Fix object reference leak in case device.realize() fails 2018-02-25 21:00:26 -05:00
include tcg: comment on which functions have to be called with tb_lock held 2018-02-28 10:26:28 -05:00
qapi qapi: rename QmpOutputVisitor to QObjectOutputVisitor 2018-02-27 08:05:33 -05:00
qobject qapi: rename QmpOutputVisitor to QObjectOutputVisitor 2018-02-27 08:05:33 -05:00
qom qapi: rename QmpOutputVisitor to QObjectOutputVisitor 2018-02-27 08:05:33 -05:00
scripts qapi: rename QmpOutputVisitor to QObjectOutputVisitor 2018-02-27 08:05:33 -05:00
target-arm arm: Add an option to turn on/off vPMU support 2018-02-28 08:49:23 -05:00
target-i386 target-i386: remove helper_lock() 2018-02-27 23:43:22 -05:00
target-m68k target-m68k: immediate ops manage word and byte operands 2018-02-28 08:42:22 -05:00
target-mips softmmu: Add probe_write() 2018-02-27 12:20:50 -05:00
target-sparc target-sparc: Allow 4-byte alignment on fp mem ops 2018-03-01 08:29:11 -05:00
tcg tcg: comment on which functions have to be called with tb_lock held 2018-02-28 10:26:28 -05:00
util qapi: rename QmpOutputVisitor to QObjectOutputVisitor 2018-02-27 08:05:33 -05:00
aarch64.h target-arm: emulate aarch64's LL/SC using cmpxchg helpers 2018-02-28 00:21:27 -05:00
aarch64eb.h target-arm: emulate aarch64's LL/SC using cmpxchg helpers 2018-02-28 00:21:27 -05:00
accel.c clean-up: removed duplicate #includes 2018-02-28 08:51:56 -05:00
arm.h tcg: Add CONFIG_ATOMIC64 2018-02-27 22:25:36 -05:00
armeb.h tcg: Add CONFIG_ATOMIC64 2018-02-27 22:25:36 -05:00
atomic_template.h tcg: Add atomic128 helpers 2018-02-27 21:43:48 -05:00
CODING_STYLE import 2015-08-21 15:04:50 +08:00
configure tcg: Add CONFIG_ATOMIC64 2018-02-27 22:25:36 -05:00
COPYING import 2015-08-21 15:04:50 +08:00
COPYING.LIB import 2015-08-21 15:04:50 +08:00
cpu-exec-common.c tcg: Add EXCP_ATOMIC 2018-02-27 11:57:58 -05:00
cpu-exec.c tcg: Add EXCP_ATOMIC 2018-02-27 11:57:58 -05:00
cpus.c tcg: Add EXCP_ATOMIC 2018-02-27 11:57:58 -05:00
cputlb.c clean-up: removed duplicate #includes 2018-02-28 08:51:56 -05:00
exec.c tcg: move locking for tb_invalidate_phys_page_range up 2018-02-28 10:35:41 -05:00
gen_all_header.sh arm64eb: add support for ARM64 big endian. 2017-04-24 23:30:01 +08:00
glib_compat.c qapi: Fix memleak in string visitors on int lists 2018-02-25 00:20:34 -05:00
HACKING import 2015-08-21 15:04:50 +08:00
header_gen.py target-sparc: Implement ldqf and stqf inline 2018-03-01 08:20:36 -05:00
ioport.c hw: remove pio_addr_t 2018-02-24 02:43:16 -05:00
LICENSE import 2015-08-21 15:04:50 +08:00
m68k.h tcg: Add CONFIG_ATOMIC64 2018-02-27 22:25:36 -05:00
Makefile Makefile: Add a FORCE target 2018-02-24 17:03:51 -05:00
Makefile.objs tcg: Add atomic helpers 2018-02-27 15:57:47 -05:00
Makefile.target tcg: Add atomic helpers 2018-02-27 15:57:47 -05:00
memory.c exec.c: Remove static allocation of sub_section of sub_page 2018-02-26 10:50:04 -05:00
memory_mapping.c include/qemu/osdep.h: Don't include qapi/error.h 2018-02-21 23:08:18 -05:00
mips.h tcg: Add CONFIG_ATOMIC64 2018-02-27 22:25:36 -05:00
mips64.h tcg: Add CONFIG_ATOMIC64 2018-02-27 22:25:36 -05:00
mips64el.h tcg: Add CONFIG_ATOMIC64 2018-02-27 22:25:36 -05:00
mipsel.h tcg: Add CONFIG_ATOMIC64 2018-02-27 22:25:36 -05:00
powerpc.h tcg: Add CONFIG_ATOMIC64 2018-02-27 22:25:36 -05:00
qapi-schema.json qapi: Lazy creation of array types 2018-02-19 18:55:35 -05:00
qemu-timer.c timer/cpus: fix some typos and update some comments 2018-02-25 23:21:57 -05:00
rules.mak rules.mak: Don't extract libs from .mo-libs in link command 2018-02-26 02:08:03 -05:00
softmmu_template.h cputlb: Remove includes from softmmu_template.h 2018-02-27 12:40:43 -05:00
sparc.h target-sparc: Implement ldqf and stqf inline 2018-03-01 08:20:36 -05:00
sparc64.h target-sparc: Implement ldqf and stqf inline 2018-03-01 08:20:36 -05:00
tcg-runtime.c tcg: Add CONFIG_ATOMIC64 2018-02-27 22:25:36 -05:00
translate-all.c tcg: move locking for tb_invalidate_phys_page_range up 2018-02-28 10:35:41 -05:00
translate-all.h translate-all.c: Compute L1 page table properties at runtime 2018-02-26 11:46:58 -05:00
translate-common.c exec: Clean up includes 2018-02-19 00:49:55 -05:00
unicorn_common.h qom/cpu: Add MemoryRegion property 2018-02-18 21:54:50 -05:00
VERSION import 2015-08-21 15:04:50 +08:00
vl.c cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -05:00
vl.h import 2015-08-21 15:04:50 +08:00
x86_64.h tcg: Add CONFIG_ATOMIC64 2018-02-27 22:25:36 -05:00