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457934855b
unicorn/qemu
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Marc Zyngier 457934855b target/arm: Handle AArch32 CP15 trapping via HSTR_EL2 
HSTR_EL2 offers a way to trap ranges of CP15 system register
accesses to EL2, and it looks like this register is completely
ignored by QEMU.

To avoid adding extra .accessfn filters all over the place (which
would have a direct performance impact), let's add a new TB flag
that gets set whenever HSTR_EL2 is non-zero and that QEMU translates
a context where this trap has a chance to apply, and only generate
the extra access check if the hypervisor is actively using this feature.

Tested with a hand-crafted KVM guest accessing CBAR.

Backports commit 5bb0a20b74ad17dee5dae38e3b8b70b383ee7c2d from qemu
2020-01-07 18:07:21 -05:00
..
accel tcg: TCGMemOp is now accelerator independent MemOp 2019-11-28 03:01:12 -05:00
crypto
default-configs
docs
fpu fpu: rename softfloat-specialize.h -> .inc.c 2019-11-18 21:12:30 -05:00
hw i386: Update new x86_apicid parsing rules with die_offset support 2019-08-08 18:22:03 -04:00
include tcg: TCGMemOp is now accelerator independent MemOp 2019-11-28 03:01:12 -05:00
qapi
qobject
qom
scripts decodetree: Suppress redundant declaration warnings 2019-11-18 21:21:30 -05:00
target target/arm: Handle AArch32 CP15 trapping via HSTR_EL2 2020-01-07 18:07:21 -05:00
tcg tcg: TCGMemOp is now accelerator independent MemOp 2019-11-28 03:01:12 -05:00
util
aarch64.h target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2020-01-07 18:04:16 -05:00
aarch64eb.h target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2020-01-07 18:04:16 -05:00
accel.c
arm.h target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2020-01-07 18:04:16 -05:00
armeb.h target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2020-01-07 18:04:16 -05:00
CODING_STYLE.rst docs: split the CODING_STYLE doc into distinct groups 2019-11-28 02:54:44 -05:00
configure configure: remove AUTOCONF_HOST 2019-11-18 22:19:47 -05:00
COPYING
COPYING.LIB
cpus.c
exec.c exec.c: add a check between constants to see whether we could skip 2019-11-28 02:55:42 -05:00
gen_all_header.sh
glib_compat.c
header_gen.py target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2020-01-07 18:04:16 -05:00
ioport.c
LICENSE
m68k.h target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2020-01-07 18:04:16 -05:00
Makefile
Makefile.objs
Makefile.target
memory_ldst.inc.c
memory_mapping.c
memory.c memory: Delete memory region subregions 2019-11-28 03:03:11 -05:00
mips64.h target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2020-01-07 18:04:16 -05:00
mips64el.h target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2020-01-07 18:04:16 -05:00
mips.h target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2020-01-07 18:04:16 -05:00
mipsel.h target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2020-01-07 18:04:16 -05:00
powerpc.h target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2020-01-07 18:04:16 -05:00
qemu-timer.c
riscv32.h target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2020-01-07 18:04:16 -05:00
riscv64.h target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2020-01-07 18:04:16 -05:00
rules.mak
sparc64.h target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2020-01-07 18:04:16 -05:00
sparc.h target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2020-01-07 18:04:16 -05:00
unicorn_common.h
VERSION Open 5.0 development tree 2020-01-07 17:50:51 -05:00
vl.c
vl.h
x86_64.h target/arm: Handle trapping to EL2 of AArch32 VMRS instructions 2020-01-07 18:04:16 -05:00