unicorn/qemu
Peter Maydell 175b632c91
target/arm: Report GICv3 sysregs present in ID registers if needed
The CPU ID registers ID_AA64PFR0_EL1, ID_PFR1_EL1 and ID_PFR1
have a field for reporting presence of GICv3 system registers.
We need to report this field correctly in order for Xen to
work as a guest inside QEMU emulation. We mustn't incorrectly
claim the sysregs exist when they don't, though, or Linux will
crash.

Unfortunately the way we've designed the GICv3 emulation in QEMU
puts the system registers as part of the GICv3 device, which
may be created after the CPU proper has been realized. This
means that we don't know at the point when we define the ID
registers what the correct value is. Handle this by switching
them to calling a function at runtime to read the value, where
we can fill in the GIC field appropriately.

Backports commit 96a8b92ed8f02d5e86ad380d3299d9f41f99b072 from qemu
2018-03-05 13:48:28 -05:00
..
accel tcg: Merge opcode arguments into TCGOp 2018-03-05 04:45:20 -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 softfloat: define floatx80_round() 2018-03-03 20:57:27 -05:00
hw mips: replace cpu_mips_init() with cpu_generic_init() 2018-03-05 00:49:10 -05:00
include compiler: Add defines for abstracting thread-local storage 2018-03-05 13:48:27 -05:00
qapi qapi: add explicit null to string input and output visitors 2018-03-03 20:32:50 -05:00
qobject qnum: add uint type 2018-03-03 18:37:56 -05:00
qom qom: introduce type_register_static_array() 2018-03-05 03:49:50 -05:00
scripts scripts: use build_ prefix for string not piped through cgen() 2018-03-03 22:11:28 -05:00
target target/arm: Report GICv3 sysregs present in ID registers if needed 2018-03-05 13:48:28 -05:00
tcg tcg/s390x: Use constant pool for prologue 2018-03-05 11:28:39 -05:00
util bitmap: provide to_le/from_le helpers 2018-03-05 01:11:13 -05:00
aarch64.h target/arm: Implement BLXNS 2018-03-05 03:31:59 -05:00
aarch64eb.h target/arm: Implement BLXNS 2018-03-05 03:31:59 -05:00
accel.c clean-up: removed duplicate #includes 2018-02-28 08:51:56 -05:00
arm.h target/arm: Implement BLXNS 2018-03-05 03:31:59 -05:00
armeb.h target/arm: Implement BLXNS 2018-03-05 03:31:59 -05:00
atomic_template.h tcg: Record code_gen_buffer address for user-only memory helpers 2018-03-05 13:48:27 -05:00
CODING_STYLE import 2015-08-21 15:04:50 +08:00
configure build: disable -Wmissing-braces on older compilers 2018-03-05 11:29:54 -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 exec-all: extract tb->tc_* into a separate struct tc_tb 2018-03-05 02:57:22 -05:00
cpus.c tcg: handle EXCP_ATOMIC exception for system emulation 2018-03-02 09:56:43 -05:00
cputlb.c tcg: Record code_gen_buffer address for user-only memory helpers 2018-03-05 13:48:28 -05:00
exec.c qom: Introduce CPUClass.tcg_initialize 2018-03-05 09:49:26 -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: Improve qobject input visitor error reporting 2018-03-02 12:05:53 -05:00
HACKING import 2015-08-21 15:04:50 +08:00
header_gen.py qom: Introduce CPUClass.tcg_initialize 2018-03-05 09:49:26 -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 target/arm: Implement BLXNS 2018-03-05 03:31:59 -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 generic translation framework 2018-03-04 14:31:16 -05:00
memory.c memory: avoid a name clash with access macro 2018-03-05 01:13:01 -05:00
memory_ldst.inc.c exec: introduce memory_ldst.inc.c 2018-03-01 09:59:34 -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 target/arm: Implement BLXNS 2018-03-05 03:31:59 -05:00
mips64.h target/arm: Implement BLXNS 2018-03-05 03:31:59 -05:00
mips64el.h target/arm: Implement BLXNS 2018-03-05 03:31:59 -05:00
mipsel.h target/arm: Implement BLXNS 2018-03-05 03:31:59 -05:00
powerpc.h target/arm: Implement BLXNS 2018-03-05 03:31:59 -05:00
qapi-schema.json qapi: Update scripts to commit 01b2ffcedd94ad7b42bc870e4c6936c87ad03429 2018-03-03 18:32:12 -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: Support generating CPU exceptions on memory transaction failures 2018-03-04 13:14:50 -05:00
sparc.h qom: Introduce CPUClass.tcg_initialize 2018-03-05 09:49:26 -05:00
sparc64.h qom: Introduce CPUClass.tcg_initialize 2018-03-05 09:49:26 -05:00
tcg-runtime.c exec-all: extract tb->tc_* into a separate struct tc_tb 2018-03-05 02:57:22 -05:00
translate-all.c tcg: Merge opcode arguments into TCGOp 2018-03-05 04:45:20 -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 util: add cacheinfo 2018-03-03 16:58:28 -05:00
vl.h import 2015-08-21 15:04:50 +08:00
x86_64.h target/arm: Implement BLXNS 2018-03-05 03:31:59 -05:00