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Stafford Horne d89e71e873 target/openrisc: implement shadow registers 
Shadow registers are part of the openrisc spec along with sr[cid], as
part of the fast context switching feature.  When exceptions occur,
instead of having to save registers to the stack if enabled the CID will
increment and a new set of registers will be available.

This patch only implements shadow registers which can be used as extra
scratch registers via the mfspr and mtspr if required.  This is
implemented in a way where it would be easy to add on the fast context
switching, currently cid is hardcoded to 0.

This is need for openrisc linux smp kernels to boot correctly.

Signed-off-by: Stafford Horne <shorne@gmail.com>
 		2017-05-04 09:39:01 +09:00
..
aarch64 linux-user: AArch64 has sync_file_range, not sync_file_range2 2016-07-19 16:18:11 +03:00
alpha linux-user: Handle ERFKILL and EHWPOISON 2017-01-22 18:14:10 -08:00
arm linux-user: fix TARGET_NR_select 2016-09-22 07:24:21 +03:00
cris linux-user: Clean up target_structs.h header guards 2016-07-12 16:19:16 +02:00
host linux-user: Fix s390x safe-syscall for z900 2017-02-14 17:18:03 +01:00
hppa linux-user: define correct UTS machine name for hppa 2017-02-06 18:24:40 -08:00
i386 linux-user: fix TARGET_NR_select 2016-09-22 07:24:21 +03:00
m68k linux-user: Update m68k syscall definitions to match Linux 4.6 2017-02-16 15:29:26 +01:00
microblaze linux-user: fix TARGET_NR_select 2016-09-22 07:24:21 +03:00
mips linux-user: Handle ERFKILL and EHWPOISON 2017-01-22 18:14:10 -08:00
mips64 linux-user: Handle ERFKILL and EHWPOISON 2017-01-22 18:14:10 -08:00
nios2 nios2: Add usermode binaries emulation 2017-01-24 13:10:35 -08:00
openrisc target/openrisc: implement shadow registers 2017-05-04 09:39:01 +09:00
ppc ppc: Fix signal delivery in ppc-user and ppc64-user 2016-09-23 10:29:40 +10:00
s390x linux-user: Clean up target_structs.h header guards 2016-07-12 16:19:16 +02:00
sh4 linux-user: Update sh4 syscall definitions to match Linux 4.8 2017-02-16 15:29:16 +01:00
sparc linux-user: Use correct target SHMLBA in shmat() 2016-09-21 14:28:52 +03:00
sparc64 linux-user: sparc64: Use correct target SHMLBA in shmat() 2016-10-21 15:19:40 +03:00
tilegx linux-user: fix TARGET_NR_select 2016-09-22 07:24:21 +03:00
unicore32 linux-user: Clean up target_structs.h header guards 2016-07-12 16:19:16 +02:00
x86_64 linux-user: Fix target_semid_ds structure definition 2016-08-04 16:36:53 +03:00
Makefile.objs linux-user: Provide safe_syscall for fixing races between signals and syscalls 2016-05-27 14:49:51 +03:00
elfload.c target/openrisc: implement shadow registers 2017-05-04 09:39:01 +09:00
errno_defs.h linux-user: Handle ERFKILL and EHWPOISON 2017-01-22 18:14:10 -08:00
flat.h Support for 32 bit ABI on 64 bit targets (only enabled Sparc64) 2007-10-14 16:27:31 +00:00
flatload.c linux-user: Fix error handling in flatload.c target_pread() 2016-09-21 14:27:19 +03:00
ioctls.h linux-user: Add FICLONE and FICLONERANGE ioctls 2017-02-16 15:29:30 +01:00
linux_loop.h linux-user: Add loop control ioctls 2016-07-19 15:22:33 +03:00
linuxload.c linux-user: Clean up includes 2016-01-29 15:07:22 +00:00
m68k-sim.c linux-user: Clean up includes 2016-01-29 15:07:22 +00:00
main.c target/openrisc: implement shadow registers 2017-05-04 09:39:01 +09:00
mmap.c linux-user: fix tcg/mmap test 2017-02-16 15:29:30 +01:00
qemu.h linux-user: Support stack-grows-up in elfload.c 2017-01-22 18:14:10 -08:00
safe-syscall.S linux-user: Provide safe_syscall for fixing races between signals and syscalls 2016-05-27 14:49:51 +03:00
signal.c target/openrisc: implement shadow registers 2017-05-04 09:39:01 +09:00
socket.h linux-user: Add HPPA socket.h definitions 2017-01-23 09:52:39 -08:00
strace.c linux-user: remove ifdef __USER_MISC 2017-02-14 17:18:03 +01:00
strace.list linux-user: Add support for syncfs() syscall 2016-10-21 15:20:13 +03:00
syscall.c syscall: fixed mincore(2) not failing with ENOMEM 2017-02-27 23:10:02 +01:00
syscall_defs.h linux-user: Add sockopts for IPv6 ping and IPv6 traceroute 2017-02-27 23:10:02 +01:00
syscall_types.h linux-user: Add FICLONE and FICLONERANGE ioctls 2017-02-16 15:29:30 +01:00
target_flat.h linux-user/FLAT: allow targets to override FLAT processing 2011-02-09 10:33:54 +02:00
trace-events trace-events: fix first line comment in trace-events 2016-08-12 10:36:01 +01:00
uaccess.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
uname.c linux-user: Clean up includes 2016-01-29 15:07:22 +00:00
uname.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
vm86.c linux-user: Clean up includes 2016-01-29 15:07:22 +00:00