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2013-09-02tcg-i386: Make use of zero-extended memory helper routinesRichard Henderson1-9/+6
For 8 and 16-bit unsigned loads, rely on the zero-extension from the helper and use a smaller 32-bit move insn. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Introduce zero and sign-extended versions of load helpersRichard Henderson3-21/+64
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02exec: Split softmmu_defs.hRichard Henderson14-76/+49
The _cmmu helpers can be moved to exec-all.h. The helpers that are used from TCG will shortly need access to tcg_target_long so move their declarations into tcg.h. This requires minor include adjustments to all TCG backends. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02target: Include softmmu_exec.h where forgottenRichard Henderson5-0/+8
Several targets forgot to include softmmu_exec.h, which would break them with a header cleanup to follow. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02exec: Rename USUFFIX to LSUFFIXRichard Henderson1-6/+6
In a following patch, there will be confusion between multiple "unsigned" suffixes; rename this one so as to imply "load". Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg-i386: Don't perform GETPC adjustment in TCG codeRichard Henderson1-19/+14
Since we now perform it inside the helper, no need to do it here. This also lets us perform a tail-call from the store slow path to the helper. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02exec: Reorganize the GETRA/GETPC macrosRichard Henderson2-52/+56
Always define GETRA; use __builtin_extract_return_addr, rather than having a special case for s390. Split GETPC_ADJ out of GETPC; use 2 universally, rather than having a special case for arm. Rename GETPC_LDST to GETRA_LDST to indicate that it does not contain the GETPC_ADJ value. Likewise with GETPC_EXT to GETRA_EXT. Perform the GETPC_ADJ adjustment inside helper_ret_ld/st. This will allow backends to pass along the "true" return address rather than the massaged GETPC value. In the meantime, double application of GETPC_ADJ does not hurt, since the call insn in all ISAs is at least 4 bytes long. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02configure: Allow x32 as a hostRichard Henderson1-9/+18
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg-i386: Adjust tcg_out_tlb_load for x32Richard Henderson1-14/+27
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg-i386: Use intptr_t appropriatelyRichard Henderson1-22/+19
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Fix jit debug for x32Richard Henderson1-5/+5
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Use appropriate types in tcg_reg_alloc_callRichard Henderson1-1/+3
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Change tcg_out_ld/st offset to intptr_tRichard Henderson12-28/+28
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Change tcg_gen_exit_tb argument to uintptr_tRichard Henderson18-25/+25
And update all users. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Use uintptr_t in TCGHelperInfoRichard Henderson2-4/+4
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Change relocation offsets to intptr_tRichard Henderson13-39/+40
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Change memory offsets to intptr_tRichard Henderson2-16/+8
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Change frame pointer offsets to intptr_tRichard Henderson2-8/+6
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Define TCG_ptr properlyRichard Henderson1-3/+3
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Define TCG_TYPE_PTR properlyRichard Henderson1-3/+6
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Allow TCG_TARGET_REG_BITS to be specified independantlyRichard Henderson6-16/+37
There are several hosts for which it would be useful to use the available 64-bit registers in a 32-bit pointer environment. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Fix next_tb type in cpu_execRichard Henderson1-1/+1
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Change tcg_qemu_tb_exec return to uintptr_tRichard Henderson5-7/+6
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Change flush_icache_range arguments to uintptr_tRichard Henderson10-31/+17
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02qtest: Fix FMT_timeval vs time_tRichard Henderson1-4/+4
Since FMT_timeval unconditionally uses %ld for both tv_sec and tv_usec, and already casts tv_usec to long, also cast tv_sec to long. Cc: Andreas Färber <afaerber@suse.de> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Constant fold div, remRichard Henderson1-0/+23
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg-ppc64: Implement muluh, mulshRichard Henderson2-29/+11
Using these instead of mulu2 and muls2 lets us avoid having to argument overlap analysis in the backend. Normal register allocation will DTRT. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg-mips: Implement mulsh, muluhRichard Henderson2-2/+12
With the optimization in tcg_liveness_analysis, we can avoid the MFLO when it is unused. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Add muluh and mulsh opcodesRichard Henderson16-11/+128
Use them in places where mulu2 and muls2 are used. Optimize mulx2 with dead low part to mulxh. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-08-30Merge remote-tracking branch 'luiz/queue/qmp' into stagingAnthony Liguori4-167/+305
# By Wenchao Xia (15) and Stefan Weil (1) # Via Luiz Capitulino * luiz/queue/qmp: monitor: improve auto complete of "help" for single command in sub group monitor: allow "help" show message for single command in sub group monitor: support sub command in auto completion monitor: refine monitor_find_completion() monitor: support sub command in help monitor: refine parse_cmdline() monitor: code move for parse_cmdline() monitor: avoid direct use of global variable *mon_cmds monitor: split off monitor_data_init() monitor: call sortcmdlist() only one time monitor: avoid use of global *cur_mon in readline_completion() monitor: avoid use of global *cur_mon in monitor_find_completion() monitor: avoid use of global *cur_mon in block_completion_it() monitor: avoid use of global *cur_mon in file_completion() monitor: avoid use of global *cur_mon in cmd_completion() monitor: Add missing attributes to local function Message-id: 1377865357-6742-1-git-send-email-lcapitulino@redhat.com
2013-08-30Merge remote-tracking branch 'borntraeger/tags/kdump' into stagingAnthony Liguori9-19/+204
This is a set of patches dealing with kdump support for s390x/kvm. kdump on s390x uses subcode 1 of diagnose 0x308 to put the hardware in a defined state. This is different from a full reset, since it does not touch all CPU registers. These patches define the cpu resets, the subsystem reset a load function and also wires up the "nmi" command to issue a RESTART interrupt as defined in the z/Architecture principles of operation. This allows recent guest kernels with properly setup userspace to trigger kdump: - via guest crash - via nmi from the host # gpg: Signature made Fri 30 Aug 2013 07:19:18 AM CDT using RSA key ID B5A61C7C # gpg: Can't check signature: public key not found # By Christian Borntraeger (5) and Eugene (jno) Dvurechenski (2) # Via Christian Borntraeger * borntraeger/tags/kdump: s390: wire up nmi command to raise a RESTART interrupt on S390 s390: Implement load normal reset s390/cpu: split CPU reset into architectured functions s390: provide a cpu load normal function s390: provide I/O subsystem reset s390/kvm: basic implementation of diagnose 308 subcode 6 s390x/kvm: Fix switch/case indentation for handle_diag Message-id: 1377810649-47484-1-git-send-email-borntraeger@de.ibm.com
2013-08-30s390: wire up nmi command to raise a RESTART interrupt on S390Eugene (jno) Dvurechenski5-6/+33
There is the 'nmi' command that is used to trigger a guest dump via kdump feature on x86. s390 uses RESTART interrupt to trigger kdump. So, this patch provides a mean to use 'nmi' command on s390 to raise RESTART interrupt. The CPU to receive the RESTART interrupt is the "default" one. There is an infrastructure to select the "default" CPU using 'cpu' command. The 'info cpus' command can be used to see which one is the "default". In order to wire up the RESTART to 'nmi' command we had to: 1. implement the kvm_s390_cpu_restart function by exporting the existing code 2. implement s390_cpu_restart function as kvm-aware wrapper 3. modify the qmp_inject_nmi function to enable (for s390) the scan for "default" CPU and call s390_cpu_restart for it; 3. fix some messages. Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Alexander Graf <agraf@suse.de>
2013-08-30s390: Implement load normal resetChristian Borntraeger1-0/+30
kdump on s390 uses a load normal reset to bring the system in a defined state by doing a subsystem reset. The issuing CPUs will have an initial CPU reset, all other CPUs will have a CPU reset as defined in POP (no register content will change). Implement this as architectured. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2013-08-30s390/cpu: split CPU reset into architectured functionsChristian Borntraeger2-3/+39
s390 provides several CPU resets: - CPU reset, clears interrupts, stop processing, clears TLB, but does not touch registers - initial CPU reset, like CPU reset, but also clears PSW, prefix, FPC, timer and control registers. It does not touch gprs, fprs and acrs (!) - Power on reset: the full monty wire up CPUClass reset to the full monty, but provide the lesser resets as part of S390CPUClass. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2013-08-30monitor: improve auto complete of "help" for single command in sub groupWenchao Xia1-4/+2
Now special case "help *" in auto completion can work with sub commands, such as "help info u*". Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-30monitor: allow "help" show message for single command in sub groupWenchao Xia2-1/+28
A new parameter type 'S' is introduced to allow user input any string. "help info block" works normal now. Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-30monitor: support sub command in auto completionWenchao Xia1-7/+7
This patch allows auto completion work normal for sub command case, "info block [DEVICE]" can auto complete now, by re-enter the completion function. In original code "info" is treated as a special case, now it is treated as a sub command group, global variable info_cmds is not used any more. "help" command is still treated as a special case, since it is not a sub command group but want to auto complete command in root command table. Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-30monitor: refine monitor_find_completion()Wenchao Xia1-26/+39
In order to support sub command in auto completion, a reentrant function is needed, so monitor_find_completion() is split into two parts. The first part does parsing of user input which need to be done only once, the second part does the auto completion job according to the parsing result, which contains the necessary code to support sub command and works as the reentrant function. The global "info_cmds" is still used in second part, which will be replaced by sub command code later. Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-30monitor: support sub command in helpWenchao Xia1-10/+52
The old code in help_cmd() uses global 'info_cmds' and treats it as a special case. Actually 'info_cmds' is a sub command group of 'mon_cmds', in order to avoid direct use of it, help_cmd() needs to change its work mechanism to support sub command and not treat it as a special case any more. To support sub command, help_cmd() will first parse the input and then call help_cmd_dump(), which works as a reentrant function. When it meets a sub command, it simply enters the function again. Since help dumping needs to know whole input to printf full help message include prefix, for example, "help info block" need to printf prefix "info", so help_cmd_dump() takes all args from input and extra parameter arg_index to identify the progress. Another function help_cmd_dump_one() is introduced to printf the prefix and command's help message. Now help supports sub command, so later if another sub command group is added in any depth, help will automatically work for it. Still "help info block" will show error since command parser reject additional parameter, which can be improved later. "log" is still treated as a special case. Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-30monitor: refine parse_cmdline()Wenchao Xia1-11/+40
Since this function will be used by help_cmd() later, so improve it to make it more generic and easier to use. free_cmdline_args() is added too as paired function to free the result. One change of this function is that, when the valid args in input exceed the limit of MAX_ARGS, it fails now, instead of return with MAX_ARGS of parsed args in old code. This should not impact much since it is rare that user input many args in monitor's "help" and auto complete scenario. Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-30monitor: code move for parse_cmdline()Wenchao Xia1-93/+98
help_cmd() need this function later, so move it. get_str() is called by parse_cmdline() so it is moved also. Some code style error reported by check script, is also fixed. Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-30monitor: avoid direct use of global variable *mon_cmdsWenchao Xia1-5/+8
New member *cmd_table is added in structure Monitor to avoid direct usage of *mon_cmds. Now monitor have an associated command table, when global variable *info_cmds is also discarded, structure Monitor would gain full control about how to deal with user input. Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-30monitor: split off monitor_data_init()Wenchao Xia1-5/+15
In qmp_human_monitor_command(), the monitor need to initialized for basic functionalities, and later more init code will be added, so split off this function. Note that it is different with QMP mode monitor which accept json string from monitor's input, qmp_human_monitor_command() retrieve the human style command from QMP input, then send the command to a normal mode monitor. Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-30monitor: call sortcmdlist() only one timeWenchao Xia1-2/+1
It doesn't need to be done for every monitor, so change it. Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-30monitor: avoid use of global *cur_mon in readline_completion()Wenchao Xia1-2/+1
Now all completion functions do not use *cur_mon any more, instead they use rs->mon. In short, structure ReadLineState decide where the complete action would be taken now. Tested with the case that qemu have two telnet monitors, auto completion function works normal. Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-30monitor: avoid use of global *cur_mon in monitor_find_completion()Wenchao Xia3-11/+12
Parameter *mon is added, and local variable *mon added in previous patch is removed. The caller readline_completion(), pass rs->mon as value, which should be initialized in readline_init() called by monitor_init(). Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-30monitor: avoid use of global *cur_mon in block_completion_it()Wenchao Xia1-4/+14
Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-30monitor: avoid use of global *cur_mon in file_completion()Wenchao Xia1-4/+4
Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-30monitor: avoid use of global *cur_mon in cmd_completion()Wenchao Xia1-6/+7
A new local variable *mon is added in monitor_find_completion() to make compile pass, which will be removed later in conversion patch for monitor_find_completion(). Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-30monitor: Add missing attributes to local functionStefan Weil1-1/+2
Function expr_error gets a format string and variable arguments like printf. It also never returns. Add the necessary attributes. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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