jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
target/microblaze: gdb: Extend the number of registers presented to GDB
Increase the number of Microblaze registers QEMU will report when
talking to GDB.
Signed-off-by: Joe Komlodi <komlodi@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-Id: <1589393329-223076-2-git-send-email-komlodi@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
authored by
Joe Komlodi
and committed by
Edgar E. Iglesias
a44e82db
2016a6a7
+50
-4
+1
-1
target/microblaze/cpu.c
+1
-1
target/microblaze/cpu.c
+49
-3
target/microblaze/gdbstub.c
+49
-3
target/microblaze/gdbstub.c
···
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26
MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs);
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CPUMBState *env = &cpu->env;
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+
/*
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+
* GDB expects registers to be reported in this order:
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* R0-R31
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* PC-BTR
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* PVR0-PVR11
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+
* EDR-TLBHI
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+
* SLR-SHR
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*/
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if (n < 32) {
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return gdb_get_reg32(mem_buf, env->regs[n]);
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} else {
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-
return gdb_get_reg32(mem_buf, env->sregs[n - 32]);
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+
n -= 32;
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+
switch (n) {
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case 0 ... 5:
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return gdb_get_reg32(mem_buf, env->sregs[n]);
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+
/* PVR12 is intentionally skipped */
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+
case 6 ... 17:
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+
n -= 6;
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return gdb_get_reg32(mem_buf, env->pvr.regs[n]);
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+
case 18 ... 24:
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+
/* Add an offset of 6 to resume where we left off with SRegs */
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+
n = n - 18 + 6;
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return gdb_get_reg32(mem_buf, env->sregs[n]);
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+
case 25:
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return gdb_get_reg32(mem_buf, env->slr);
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+
case 26:
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return gdb_get_reg32(mem_buf, env->shr);
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+
default:
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return 0;
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+
}
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}
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-
return 0;
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}
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int mb_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
···
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if (n < 32) {
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env->regs[n] = tmp;
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} else {
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-
env->sregs[n - 32] = tmp;
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+
n -= 32;
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+
switch (n) {
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+
case 0 ... 5:
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+
env->sregs[n] = tmp;
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+
break;
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/* PVR12 is intentionally skipped */
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+
case 6 ... 17:
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n -= 6;
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+
env->pvr.regs[n] = tmp;
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+
break;
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+
case 18 ... 24:
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/* Add an offset of 6 to resume where we left off with SRegs */
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+
n = n - 18 + 6;
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+
env->sregs[n] = tmp;
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break;
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case 25:
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env->slr = tmp;
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break;
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+
case 26:
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env->shr = tmp;
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break;
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}
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}
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return 4;
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}