qemu/target/ppc/monitor.c

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/*
* QEMU monitor
*
* Copyright (c) 2003-2004 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "cpu.h"
#include "monitor/monitor.h"
#include "qemu/ctype.h"
#include "monitor/hmp-target.h"
#include "monitor/hmp.h"
static target_long monitor_get_ccr(Monitor *mon, const struct MonitorDef *md,
int val)
{
hmp: Pass monitor to mon_get_cpu_env() mon_get_cpu_env() is indirectly called monitor_parse_arguments() where the current monitor isn't set yet. Instead of using monitor_cur_env(), explicitly pass the Monitor pointer to the function. Without this fix, an HMP command like "x $pc" crashes like this: #0 0x0000555555caa01f in mon_get_cpu_sync (mon=0x0, synchronize=true) at ../monitor/misc.c:270 #1 0x0000555555caa141 in mon_get_cpu (mon=0x0) at ../monitor/misc.c:294 #2 0x0000555555caa158 in mon_get_cpu_env () at ../monitor/misc.c:299 #3 0x0000555555b19739 in monitor_get_pc (mon=0x555556ad2de0, md=0x5555565d2d40 <monitor_defs+1152>, val=0) at ../target/i386/monitor.c:607 #4 0x0000555555cadbec in get_monitor_def (mon=0x555556ad2de0, pval=0x7fffffffc208, name=0x7fffffffc220 "pc") at ../monitor/misc.c:1681 #5 0x000055555582ec4f in expr_unary (mon=0x555556ad2de0) at ../monitor/hmp.c:387 #6 0x000055555582edbb in expr_prod (mon=0x555556ad2de0) at ../monitor/hmp.c:421 #7 0x000055555582ee79 in expr_logic (mon=0x555556ad2de0) at ../monitor/hmp.c:455 #8 0x000055555582eefe in expr_sum (mon=0x555556ad2de0) at ../monitor/hmp.c:484 #9 0x000055555582efe8 in get_expr (mon=0x555556ad2de0, pval=0x7fffffffc418, pp=0x7fffffffc408) at ../monitor/hmp.c:511 #10 0x000055555582fcd4 in monitor_parse_arguments (mon=0x555556ad2de0, endp=0x7fffffffc890, cmd=0x555556675b50 <hmp_cmds+7920>) at ../monitor/hmp.c:876 #11 0x00005555558306a8 in handle_hmp_command (mon=0x555556ad2de0, cmdline=0x555556ada452 "$pc") at ../monitor/hmp.c:1087 #12 0x000055555582df14 in monitor_command_cb (opaque=0x555556ad2de0, cmdline=0x555556ada450 "x $pc", readline_opaque=0x0) at ../monitor/hmp.c:47 After this fix, nothing is left in monitor_parse_arguments() that can indirectly call monitor_cur(), so the fix is complete. Fixes: ff04108a0e36e822519c517bd3bddbc1c7747c18 Reported-by: lichun <lichun@ruijie.com.cn> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20201113114326.97663-4-kwolf@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-11-13 19:43:26 +08:00
CPUArchState *env = mon_get_cpu_env(mon);
unsigned int u;
int i;
u = 0;
for (i = 0; i < 8; i++) {
u |= env->crf[i] << (32 - (4 * (i + 1)));
}
return u;
}
static target_long monitor_get_decr(Monitor *mon, const struct MonitorDef *md,
int val)
{
hmp: Pass monitor to mon_get_cpu_env() mon_get_cpu_env() is indirectly called monitor_parse_arguments() where the current monitor isn't set yet. Instead of using monitor_cur_env(), explicitly pass the Monitor pointer to the function. Without this fix, an HMP command like "x $pc" crashes like this: #0 0x0000555555caa01f in mon_get_cpu_sync (mon=0x0, synchronize=true) at ../monitor/misc.c:270 #1 0x0000555555caa141 in mon_get_cpu (mon=0x0) at ../monitor/misc.c:294 #2 0x0000555555caa158 in mon_get_cpu_env () at ../monitor/misc.c:299 #3 0x0000555555b19739 in monitor_get_pc (mon=0x555556ad2de0, md=0x5555565d2d40 <monitor_defs+1152>, val=0) at ../target/i386/monitor.c:607 #4 0x0000555555cadbec in get_monitor_def (mon=0x555556ad2de0, pval=0x7fffffffc208, name=0x7fffffffc220 "pc") at ../monitor/misc.c:1681 #5 0x000055555582ec4f in expr_unary (mon=0x555556ad2de0) at ../monitor/hmp.c:387 #6 0x000055555582edbb in expr_prod (mon=0x555556ad2de0) at ../monitor/hmp.c:421 #7 0x000055555582ee79 in expr_logic (mon=0x555556ad2de0) at ../monitor/hmp.c:455 #8 0x000055555582eefe in expr_sum (mon=0x555556ad2de0) at ../monitor/hmp.c:484 #9 0x000055555582efe8 in get_expr (mon=0x555556ad2de0, pval=0x7fffffffc418, pp=0x7fffffffc408) at ../monitor/hmp.c:511 #10 0x000055555582fcd4 in monitor_parse_arguments (mon=0x555556ad2de0, endp=0x7fffffffc890, cmd=0x555556675b50 <hmp_cmds+7920>) at ../monitor/hmp.c:876 #11 0x00005555558306a8 in handle_hmp_command (mon=0x555556ad2de0, cmdline=0x555556ada452 "$pc") at ../monitor/hmp.c:1087 #12 0x000055555582df14 in monitor_command_cb (opaque=0x555556ad2de0, cmdline=0x555556ada450 "x $pc", readline_opaque=0x0) at ../monitor/hmp.c:47 After this fix, nothing is left in monitor_parse_arguments() that can indirectly call monitor_cur(), so the fix is complete. Fixes: ff04108a0e36e822519c517bd3bddbc1c7747c18 Reported-by: lichun <lichun@ruijie.com.cn> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20201113114326.97663-4-kwolf@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-11-13 19:43:26 +08:00
CPUArchState *env = mon_get_cpu_env(mon);
return cpu_ppc_load_decr(env);
}
static target_long monitor_get_tbu(Monitor *mon, const struct MonitorDef *md,
int val)
{
hmp: Pass monitor to mon_get_cpu_env() mon_get_cpu_env() is indirectly called monitor_parse_arguments() where the current monitor isn't set yet. Instead of using monitor_cur_env(), explicitly pass the Monitor pointer to the function. Without this fix, an HMP command like "x $pc" crashes like this: #0 0x0000555555caa01f in mon_get_cpu_sync (mon=0x0, synchronize=true) at ../monitor/misc.c:270 #1 0x0000555555caa141 in mon_get_cpu (mon=0x0) at ../monitor/misc.c:294 #2 0x0000555555caa158 in mon_get_cpu_env () at ../monitor/misc.c:299 #3 0x0000555555b19739 in monitor_get_pc (mon=0x555556ad2de0, md=0x5555565d2d40 <monitor_defs+1152>, val=0) at ../target/i386/monitor.c:607 #4 0x0000555555cadbec in get_monitor_def (mon=0x555556ad2de0, pval=0x7fffffffc208, name=0x7fffffffc220 "pc") at ../monitor/misc.c:1681 #5 0x000055555582ec4f in expr_unary (mon=0x555556ad2de0) at ../monitor/hmp.c:387 #6 0x000055555582edbb in expr_prod (mon=0x555556ad2de0) at ../monitor/hmp.c:421 #7 0x000055555582ee79 in expr_logic (mon=0x555556ad2de0) at ../monitor/hmp.c:455 #8 0x000055555582eefe in expr_sum (mon=0x555556ad2de0) at ../monitor/hmp.c:484 #9 0x000055555582efe8 in get_expr (mon=0x555556ad2de0, pval=0x7fffffffc418, pp=0x7fffffffc408) at ../monitor/hmp.c:511 #10 0x000055555582fcd4 in monitor_parse_arguments (mon=0x555556ad2de0, endp=0x7fffffffc890, cmd=0x555556675b50 <hmp_cmds+7920>) at ../monitor/hmp.c:876 #11 0x00005555558306a8 in handle_hmp_command (mon=0x555556ad2de0, cmdline=0x555556ada452 "$pc") at ../monitor/hmp.c:1087 #12 0x000055555582df14 in monitor_command_cb (opaque=0x555556ad2de0, cmdline=0x555556ada450 "x $pc", readline_opaque=0x0) at ../monitor/hmp.c:47 After this fix, nothing is left in monitor_parse_arguments() that can indirectly call monitor_cur(), so the fix is complete. Fixes: ff04108a0e36e822519c517bd3bddbc1c7747c18 Reported-by: lichun <lichun@ruijie.com.cn> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20201113114326.97663-4-kwolf@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-11-13 19:43:26 +08:00
CPUArchState *env = mon_get_cpu_env(mon);
return cpu_ppc_load_tbu(env);
}
static target_long monitor_get_tbl(Monitor *mon, const struct MonitorDef *md,
int val)
{
hmp: Pass monitor to mon_get_cpu_env() mon_get_cpu_env() is indirectly called monitor_parse_arguments() where the current monitor isn't set yet. Instead of using monitor_cur_env(), explicitly pass the Monitor pointer to the function. Without this fix, an HMP command like "x $pc" crashes like this: #0 0x0000555555caa01f in mon_get_cpu_sync (mon=0x0, synchronize=true) at ../monitor/misc.c:270 #1 0x0000555555caa141 in mon_get_cpu (mon=0x0) at ../monitor/misc.c:294 #2 0x0000555555caa158 in mon_get_cpu_env () at ../monitor/misc.c:299 #3 0x0000555555b19739 in monitor_get_pc (mon=0x555556ad2de0, md=0x5555565d2d40 <monitor_defs+1152>, val=0) at ../target/i386/monitor.c:607 #4 0x0000555555cadbec in get_monitor_def (mon=0x555556ad2de0, pval=0x7fffffffc208, name=0x7fffffffc220 "pc") at ../monitor/misc.c:1681 #5 0x000055555582ec4f in expr_unary (mon=0x555556ad2de0) at ../monitor/hmp.c:387 #6 0x000055555582edbb in expr_prod (mon=0x555556ad2de0) at ../monitor/hmp.c:421 #7 0x000055555582ee79 in expr_logic (mon=0x555556ad2de0) at ../monitor/hmp.c:455 #8 0x000055555582eefe in expr_sum (mon=0x555556ad2de0) at ../monitor/hmp.c:484 #9 0x000055555582efe8 in get_expr (mon=0x555556ad2de0, pval=0x7fffffffc418, pp=0x7fffffffc408) at ../monitor/hmp.c:511 #10 0x000055555582fcd4 in monitor_parse_arguments (mon=0x555556ad2de0, endp=0x7fffffffc890, cmd=0x555556675b50 <hmp_cmds+7920>) at ../monitor/hmp.c:876 #11 0x00005555558306a8 in handle_hmp_command (mon=0x555556ad2de0, cmdline=0x555556ada452 "$pc") at ../monitor/hmp.c:1087 #12 0x000055555582df14 in monitor_command_cb (opaque=0x555556ad2de0, cmdline=0x555556ada450 "x $pc", readline_opaque=0x0) at ../monitor/hmp.c:47 After this fix, nothing is left in monitor_parse_arguments() that can indirectly call monitor_cur(), so the fix is complete. Fixes: ff04108a0e36e822519c517bd3bddbc1c7747c18 Reported-by: lichun <lichun@ruijie.com.cn> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20201113114326.97663-4-kwolf@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-11-13 19:43:26 +08:00
CPUArchState *env = mon_get_cpu_env(mon);
return cpu_ppc_load_tbl(env);
}
void hmp_info_tlb(Monitor *mon, const QDict *qdict)
{
hmp: Pass monitor to mon_get_cpu_env() mon_get_cpu_env() is indirectly called monitor_parse_arguments() where the current monitor isn't set yet. Instead of using monitor_cur_env(), explicitly pass the Monitor pointer to the function. Without this fix, an HMP command like "x $pc" crashes like this: #0 0x0000555555caa01f in mon_get_cpu_sync (mon=0x0, synchronize=true) at ../monitor/misc.c:270 #1 0x0000555555caa141 in mon_get_cpu (mon=0x0) at ../monitor/misc.c:294 #2 0x0000555555caa158 in mon_get_cpu_env () at ../monitor/misc.c:299 #3 0x0000555555b19739 in monitor_get_pc (mon=0x555556ad2de0, md=0x5555565d2d40 <monitor_defs+1152>, val=0) at ../target/i386/monitor.c:607 #4 0x0000555555cadbec in get_monitor_def (mon=0x555556ad2de0, pval=0x7fffffffc208, name=0x7fffffffc220 "pc") at ../monitor/misc.c:1681 #5 0x000055555582ec4f in expr_unary (mon=0x555556ad2de0) at ../monitor/hmp.c:387 #6 0x000055555582edbb in expr_prod (mon=0x555556ad2de0) at ../monitor/hmp.c:421 #7 0x000055555582ee79 in expr_logic (mon=0x555556ad2de0) at ../monitor/hmp.c:455 #8 0x000055555582eefe in expr_sum (mon=0x555556ad2de0) at ../monitor/hmp.c:484 #9 0x000055555582efe8 in get_expr (mon=0x555556ad2de0, pval=0x7fffffffc418, pp=0x7fffffffc408) at ../monitor/hmp.c:511 #10 0x000055555582fcd4 in monitor_parse_arguments (mon=0x555556ad2de0, endp=0x7fffffffc890, cmd=0x555556675b50 <hmp_cmds+7920>) at ../monitor/hmp.c:876 #11 0x00005555558306a8 in handle_hmp_command (mon=0x555556ad2de0, cmdline=0x555556ada452 "$pc") at ../monitor/hmp.c:1087 #12 0x000055555582df14 in monitor_command_cb (opaque=0x555556ad2de0, cmdline=0x555556ada450 "x $pc", readline_opaque=0x0) at ../monitor/hmp.c:47 After this fix, nothing is left in monitor_parse_arguments() that can indirectly call monitor_cur(), so the fix is complete. Fixes: ff04108a0e36e822519c517bd3bddbc1c7747c18 Reported-by: lichun <lichun@ruijie.com.cn> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20201113114326.97663-4-kwolf@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-11-13 19:43:26 +08:00
CPUArchState *env1 = mon_get_cpu_env(mon);
if (!env1) {
monitor_printf(mon, "No CPU available\n");
return;
}
dump_mmu(env1);
}
const MonitorDef monitor_defs[] = {
{ "fpscr", offsetof(CPUPPCState, fpscr) },
/* Next instruction pointer */
{ "nip|pc", offsetof(CPUPPCState, nip) },
{ "lr", offsetof(CPUPPCState, lr) },
{ "ctr", offsetof(CPUPPCState, ctr) },
{ "decr", 0, &monitor_get_decr, },
{ "ccr|cr", 0, &monitor_get_ccr, },
/* Machine state register */
{ "xer", offsetof(CPUPPCState, xer) },
{ "msr", offsetof(CPUPPCState, msr) },
{ "tbu", 0, &monitor_get_tbu, },
{ "tbl", 0, &monitor_get_tbl, },
{ NULL },
};
const MonitorDef *target_monitor_defs(void)
{
return monitor_defs;
}
static int ppc_cpu_get_reg_num(const char *numstr, int maxnum, int *pregnum)
{
int regnum;
char *endptr = NULL;
if (!*numstr) {
return false;
}
regnum = strtoul(numstr, &endptr, 10);
if (*endptr || (regnum >= maxnum)) {
return false;
}
*pregnum = regnum;
return true;
}
int target_get_monitor_def(CPUState *cs, const char *name, uint64_t *pval)
{
int i, regnum;
PowerPCCPU *cpu = POWERPC_CPU(cs);
CPUPPCState *env = &cpu->env;
/* General purpose registers */
if ((qemu_tolower(name[0]) == 'r') &&
ppc_cpu_get_reg_num(name + 1, ARRAY_SIZE(env->gpr), &regnum)) {
*pval = env->gpr[regnum];
return 0;
}
/* Floating point registers */
if ((qemu_tolower(name[0]) == 'f') &&
target/ppc: move FP and VMX registers into aligned vsr register array The VSX register array is a block of 64 128-bit registers where the first 32 registers consist of the existing 64-bit FP registers extended to 128-bit using new VSR registers, and the last 32 registers are the VMX 128-bit registers as show below: 64-bit 64-bit +--------------------+--------------------+ | FP0 | | VSR0 +--------------------+--------------------+ | FP1 | | VSR1 +--------------------+--------------------+ | ... | ... | ... +--------------------+--------------------+ | FP30 | | VSR30 +--------------------+--------------------+ | FP31 | | VSR31 +--------------------+--------------------+ | VMX0 | VSR32 +-----------------------------------------+ | VMX1 | VSR33 +-----------------------------------------+ | ... | ... +-----------------------------------------+ | VMX30 | VSR62 +-----------------------------------------+ | VMX31 | VSR63 +-----------------------------------------+ In order to allow for future conversion of VSX instructions to use TCG vector operations, recreate the same layout using an aligned version of the existing vsr register array. Since the old fpr and avr register arrays are removed, the existing callers must also be updated to use the correct offset in the vsr register array. This also includes switching the relevant VMState fields over to using subarrays to make sure that migration is preserved. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-01-02 17:14:22 +08:00
ppc_cpu_get_reg_num(name + 1, 32, &regnum)) {
*pval = *cpu_fpr_ptr(env, regnum);
return 0;
}
/* Special purpose registers */
for (i = 0; i < ARRAY_SIZE(env->spr_cb); ++i) {
ppc_spr_t *spr = &env->spr_cb[i];
if (spr->name && (strcasecmp(name, spr->name) == 0)) {
*pval = env->spr[i];
return 0;
}
}
/* Segment registers */
#if !defined(CONFIG_USER_ONLY)
if ((strncasecmp(name, "sr", 2) == 0) &&
ppc_cpu_get_reg_num(name + 2, ARRAY_SIZE(env->sr), &regnum)) {
*pval = env->sr[regnum];
return 0;
}
#endif
return -EINVAL;
}