Kinsey Moore started a new discussion on bsps/x86_64/amd64/interrupts/apic.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/168#note_110605 > + * When the CPUID instruction is executed with a source operand of 1 in the > EAX > + * register, bit 9 of the CPUID feature flags returned in the EDX register > + * indicates the presence (set) or absence (clear) of a local APIC. > + * > + * @return true if CPUID reports the presence of a local APIC. > + */ > +static bool has_lapic_support(void) > +{ > + uint32_t eax, ebx, ecx, edx; > + cpuid(1, &eax, &ebx, &ecx, &edx); > + return (edx >> 9) & 1; > +} > + > +/** > + * @brief Passed to acpi_walk_subtables to parse information from MADT > entries > + */ The parameter is not documented here. -- View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/168#note_110605 You're receiving this email because of your account on gitlab.rtems.org.
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