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Alex Bennée babf31dfa0
target/arm: expose CPUID registers to userspace 
A number of CPUID registers are exposed to userspace by modern Linux
kernels thanks to the "ARM64 CPU Feature Registers" ABI. For QEMU's
user-mode emulation we don't need to emulate the kernels trap but just
return the value the trap would have done. To avoid too much #ifdef
hackery we process ARMCPRegInfo with a new helper (modify_arm_cp_regs)
before defining the registers. The modify routine is driven by a
simple data structure which describes which bits are exported and
which are fixed.

Backports commit 6c5c0fec29bbfe36c64eca1edfd8455be46b77c6 from qemu
2019-02-15 17:27:30 -05:00
..
accel cputlb: update TLB entry/index after tlb_fill 2019-02-12 11:48:48 -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/devel/memory.txt: Document _with_attrs accessors 2018-10-04 04:46:26 -04:00
fpu include/fpu/softfloat: Fix compilation with Clang on s390x 2019-01-24 18:37:51 -05:00
hw hw/mips/mips_r4k: Fix initialization of MIPS target CPUs 2018-09-03 17:40:08 -04:00
include exec-all: document that tlb_fill can trigger a TLB resize 2019-02-12 11:38:28 -05:00
qapi qapi: Rewrite string-input-visitor's integer and list parsing 2018-12-18 04:57:25 -05:00
qobject qstring: Move qstring_from_substr()'s @end one to the right 2018-08-02 21:24:19 -04:00
qom qom/cpu: Add cluster_index to CPUState 2019-01-30 12:59:59 -05:00
scripts decodetree: re.fullmatch was added in 3.4 2019-01-25 13:47:47 -05:00
target target/arm: expose CPUID registers to userspace 2019-02-15 17:27:30 -05:00
tcg target/mips: reimplement SC instruction emulation and use cmpxchg 2019-02-15 17:10:16 -05:00
util mmap-alloc: fix hugetlbfs misaligned length in ppc64 2019-02-05 16:52:39 -05:00
aarch64.h target/arm: expose CPUID registers to userspace 2019-02-15 17:27:30 -05:00
aarch64eb.h target/arm: expose CPUID registers to userspace 2019-02-15 17:27:30 -05:00
accel.c clean-up: removed duplicate #includes 2018-02-28 08:51:56 -05:00
arm.h target/arm: expose CPUID registers to userspace 2019-02-15 17:27:30 -05:00
armeb.h target/arm: expose CPUID registers to userspace 2019-02-15 17:27:30 -05:00
CODING_STYLE
configure configure: Force the C standard to gnu99 2019-01-22 20:18:58 -05:00
COPYING
COPYING.LIB
cpus.c Include qapi/error.h exactly where needed 2018-03-07 12:26:38 -05:00
exec.c exec.c: Use correct attrs in cpu_memory_rw_debug() 2019-01-29 17:05:50 -05:00
gen_all_header.sh arm64eb: add support for ARM64 big endian. 2017-04-24 23:30:01 +08:00
glib_compat.c Use cpu_create(type) instead of cpu_init(cpu_model) 2018-03-20 14:20:30 -04:00
HACKING HACKING: document preference for g_new instead of g_malloc 2018-05-22 00:30:50 -04:00
header_gen.py target/arm: expose CPUID registers to userspace 2019-02-15 17:27:30 -05:00
ioport.c hw: remove pio_addr_t 2018-02-24 02:43:16 -05:00
LICENSE
m68k.h target/arm: expose CPUID registers to userspace 2019-02-15 17:27:30 -05:00
Makefile Revert "Makefile: Rename TARGET_DIRS to TARGET_LIST" 2018-07-05 17:40:24 -04:00
Makefile.objs qapi: Move qapi-schema.json to qapi/, rename generated files 2018-03-09 11:35:11 -05:00
Makefile.target configure: Remove old -fno-gcse workaround for GCC 4.6.x and 4.7.[012] 2018-12-18 03:52:36 -05:00
memory.c memory: learn about non-volatile memory region 2018-11-11 08:50:39 -05:00
memory_ldst.inc.c exec: Fix MAP_RAM for cached access 2018-07-03 01:11:12 -04:00
memory_mapping.c include/qemu/osdep.h: Don't include qapi/error.h 2018-02-21 23:08:18 -05:00
mips.h target/arm: expose CPUID registers to userspace 2019-02-15 17:27:30 -05:00
mips64.h target/arm: expose CPUID registers to userspace 2019-02-15 17:27:30 -05:00
mips64el.h target/arm: expose CPUID registers to userspace 2019-02-15 17:27:30 -05:00
mipsel.h target/arm: expose CPUID registers to userspace 2019-02-15 17:27:30 -05:00
powerpc.h target/arm: expose CPUID registers to userspace 2019-02-15 17:27:30 -05:00
qemu-timer.c timer/cpus: fix some typos and update some comments 2018-02-25 23:21:57 -05:00
riscv32.h target/arm: Add v8M stack checks on ADD/SUB/MOV of SP 2018-10-08 14:15:15 -04:00
riscv64.h target/arm: Add v8M stack checks on ADD/SUB/MOV of SP 2018-10-08 14:15:15 -04:00
rules.mak build-sys: silence make by default or V=0 2018-03-06 08:58:03 -05:00
sparc.h target/arm: expose CPUID registers to userspace 2019-02-15 17:27:30 -05:00
sparc64.h target/arm: expose CPUID registers to userspace 2019-02-15 17:27:30 -05:00
unicorn_common.h unicorn_common: Fix unicorn memory functions failing 2018-09-03 10:40:14 -04:00
VERSION Open 4.0 development tree 2018-12-11 20:33:45 -05:00
vl.c Use cpu_create(type) instead of cpu_init(cpu_model) 2018-03-20 14:20:30 -04:00
vl.h
x86_64.h target/arm: expose CPUID registers to userspace 2019-02-15 17:27:30 -05:00