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unicorn/qemu
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Peter Maydell db8b0a82b1
cpu: Support a target CPU having a variable page size 
Support target CPUs having a page size which isn't knownn
at compile time. To use this, the CPU implementation should:
* define TARGET_PAGE_BITS_VARY
* not define TARGET_PAGE_BITS
* define TARGET_PAGE_BITS_MIN to the smallest value it
might possibly want for TARGET_PAGE_BITS
* call set_preferred_target_page_bits() in its realize
function to indicate the actual preferred target page
size for the CPU (and report any error from it)

In CONFIG_USER_ONLY, the CPU implementation should continue
to define TARGET_PAGE_BITS appropriately for the guest
OS page size.

Machines which want to take advantage of having the page
size something larger than TARGET_PAGE_BITS_MIN must
set the MachineClass minimum_page_bits field to a value
which they guarantee will be no greater than the preferred
page size for any CPU they create.

Note that changing the target page size by setting
minimum_page_bits is a migration compatibility break
for that machine.

For debugging purposes, attempts to use TARGET_PAGE_SIZE
before it has been finally confirmed will assert.

Backports commit 20bccb82ff3ea09bcb7c4ee226d3160cab15f7da from qemu
2018-02-26 12:29:08 -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 cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -05:00
qapi qapi: return a 'missing parameter' error 2018-02-26 05:19:53 -05:00
qobject util: move declarations out of qemu-common.h 2018-02-22 09:25:48 -05:00
qom cpu: atomically modify cpu->exit_request 2018-02-26 05:11:18 -05:00
scripts qapi: Implement boxed types for commands/events 2018-02-25 20:22:03 -05:00
target-arm target-arm: Add trace events for the generic timers 2018-02-26 08:15:42 -05:00
target-i386 target-i386: fix 32-bit addresses in LEA 2018-02-26 10:06:08 -05:00
target-m68k Remove unused function declarations 2018-02-26 02:31:46 -05:00
target-mips target-mips: generate fences 2018-02-26 03:52:35 -05:00
target-sparc sparc: Use g_memdup() instead of g_new0() + memcpy() 2018-02-25 23:19:44 -05:00
tcg tcg: try sti when moving a constant into a dead memory temp 2018-02-26 10:08:47 -05:00
util cutils: Remove unused vector ifdef block 2018-02-26 02:28:50 -05:00
aarch64.h cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -05:00
aarch64eb.h cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -05:00
accel.c accel: make configure_accelerator return void 2018-02-24 00:31:28 -05:00
arm.h cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -05:00
armeb.h cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -05:00
CODING_STYLE import 2015-08-21 15:04:50 +08:00
configure configure: Always compile with -fwrapv 2018-02-25 23:17:41 -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 cpu-exec: Rename cpu_resume_from_signal() to cpu_loop_exit_noexc() 2018-02-24 17:25:28 -05:00
cpu-exec.c cpu: atomically modify cpu->exit_request 2018-02-26 05:11:18 -05:00
cpus.c cpus: pass CPUState to run_on_cpu helpers 2018-02-26 04:54:55 -05:00
cputlb.c tcg: Merge GETPC and GETRA 2018-02-26 02:54:44 -05:00
exec.c cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -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 cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -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 cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -05:00
Makefile Makefile: Add a FORCE target 2018-02-24 17:03:51 -05:00
Makefile.objs util: Move qemu-log to utils 2018-02-25 22:17:44 -05:00
Makefile.target tcg: split tcg_op_defs to -common 2018-02-17 15:23:51 -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 cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -05:00
mips64.h cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -05:00
mips64el.h cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -05:00
mipsel.h cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -05:00
powerpc.h cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -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 tcg: Merge GETPC and GETRA 2018-02-26 02:54:44 -05:00
sparc.h cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -05:00
sparc64.h cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -05:00
tcg-runtime.c all: Clean up includes 2018-02-19 01:34:28 -05:00
translate-all.c translate-all.c: Compute L1 page table properties at runtime 2018-02-26 11:46:58 -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 cpu: Support a target CPU having a variable page size 2018-02-26 12:29:08 -05:00