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| author | jhb <jhb@FreeBSD.org> | 2006-09-11 20:12:42 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2006-09-11 20:12:42 +0000 |
| commit | 35312a59c3883c9be486aa033b2e5d025e9ab07c (patch) | |
| tree | 68ecc07a7c0a16001e71e47cfb6963e4cf5636ba /sys | |
| parent | 5845d0195b91c768f244ed149e5039372942f2aa (diff) | |
| download | FreeBSD-src-35312a59c3883c9be486aa033b2e5d025e9ab07c.zip FreeBSD-src-35312a59c3883c9be486aa033b2e5d025e9ab07c.tar.gz | |
Add a new ddb command 'show lapic' to dump details about the local APIC
registers for the current CPU.
MFC after: 3 days
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/amd64/amd64/local_apic.c | 70 | ||||
| -rw-r--r-- | sys/i386/i386/local_apic.c | 70 |
2 files changed, 140 insertions, 0 deletions
diff --git a/sys/amd64/amd64/local_apic.c b/sys/amd64/amd64/local_apic.c index e012d0f..696bf6f 100644 --- a/sys/amd64/amd64/local_apic.c +++ b/sys/amd64/amd64/local_apic.c @@ -794,6 +794,76 @@ DB_SHOW_COMMAND(apic, db_show_apic) } } } + +static void +dump_mask(const char *prefix, uint32_t v, int base) +{ + int i, first; + + first = 1; + for (i = 0; i < 32; i++) + if (v & (1 << i)) { + if (first) { + db_printf("%s:", prefix); + first = 0; + } + db_printf(" %02x", base + i); + } + if (!first) + db_printf("\n"); +} + +/* Show info from the lapic regs for this CPU. */ +DB_SHOW_COMMAND(lapic, db_show_lapic) +{ + uint32_t v; + + db_printf("lapic ID = %d\n", lapic_id()); + v = lapic->version; + db_printf("version = %d.%d\n", (v & APIC_VER_VERSION) >> 4, + v & 0xf); + db_printf("max LVT = %d\n", (v & APIC_VER_MAXLVT) >> MAXLVTSHIFT); + v = lapic->svr; + db_printf("SVR = %02x (%s)\n", v & APIC_SVR_VECTOR, + v & APIC_SVR_ENABLE ? "enabled" : "disabled"); + db_printf("TPR = %02x\n", lapic->tpr); + +#define dump_field(prefix, index) \ + dump_mask(__XSTRING(prefix ## index), lapic->prefix ## index, \ + index * 32) + + db_printf("In-service Interrupts:\n"); + dump_field(isr, 0); + dump_field(isr, 1); + dump_field(isr, 2); + dump_field(isr, 3); + dump_field(isr, 4); + dump_field(isr, 5); + dump_field(isr, 6); + dump_field(isr, 7); + + db_printf("TMR Interrupts:\n"); + dump_field(tmr, 0); + dump_field(tmr, 1); + dump_field(tmr, 2); + dump_field(tmr, 3); + dump_field(tmr, 4); + dump_field(tmr, 5); + dump_field(tmr, 6); + dump_field(tmr, 7); + + db_printf("IRR Interrupts:\n"); + dump_field(irr, 0); + dump_field(irr, 1); + dump_field(irr, 2); + dump_field(irr, 3); + dump_field(irr, 4); + dump_field(irr, 5); + dump_field(irr, 6); + dump_field(irr, 7); + +#undef dump_field +} #endif /* diff --git a/sys/i386/i386/local_apic.c b/sys/i386/i386/local_apic.c index 400bc29..54b2eb6 100644 --- a/sys/i386/i386/local_apic.c +++ b/sys/i386/i386/local_apic.c @@ -797,6 +797,76 @@ DB_SHOW_COMMAND(apic, db_show_apic) } } } + +static void +dump_mask(const char *prefix, uint32_t v, int base) +{ + int i, first; + + first = 1; + for (i = 0; i < 32; i++) + if (v & (1 << i)) { + if (first) { + db_printf("%s:", prefix); + first = 0; + } + db_printf(" %02x", base + i); + } + if (!first) + db_printf("\n"); +} + +/* Show info from the lapic regs for this CPU. */ +DB_SHOW_COMMAND(lapic, db_show_lapic) +{ + uint32_t v; + + db_printf("lapic ID = %d\n", lapic_id()); + v = lapic->version; + db_printf("version = %d.%d\n", (v & APIC_VER_VERSION) >> 4, + v & 0xf); + db_printf("max LVT = %d\n", (v & APIC_VER_MAXLVT) >> MAXLVTSHIFT); + v = lapic->svr; + db_printf("SVR = %02x (%s)\n", v & APIC_SVR_VECTOR, + v & APIC_SVR_ENABLE ? "enabled" : "disabled"); + db_printf("TPR = %02x\n", lapic->tpr); + +#define dump_field(prefix, index) \ + dump_mask(__XSTRING(prefix ## index), lapic->prefix ## index, \ + index * 32) + + db_printf("In-service Interrupts:\n"); + dump_field(isr, 0); + dump_field(isr, 1); + dump_field(isr, 2); + dump_field(isr, 3); + dump_field(isr, 4); + dump_field(isr, 5); + dump_field(isr, 6); + dump_field(isr, 7); + + db_printf("TMR Interrupts:\n"); + dump_field(tmr, 0); + dump_field(tmr, 1); + dump_field(tmr, 2); + dump_field(tmr, 3); + dump_field(tmr, 4); + dump_field(tmr, 5); + dump_field(tmr, 6); + dump_field(tmr, 7); + + db_printf("IRR Interrupts:\n"); + dump_field(irr, 0); + dump_field(irr, 1); + dump_field(irr, 2); + dump_field(irr, 3); + dump_field(irr, 4); + dump_field(irr, 5); + dump_field(irr, 6); + dump_field(irr, 7); + +#undef dump_field +} #endif /* |
