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| author | Damien Zammit via Bug reports for the GNU Hurd <bug-hurd@gnu.org> | 2024-12-21 02:39:48 +0000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2024-12-21 22:33:32 +0100 |
| commit | 7b578f3794dbf1c9cde6bb92f1fc5799a287bd1a (patch) | |
| tree | 3009722688db1adf97b653c26cc41ae3ea1a0f54 | |
| parent | 2409f1f69a5b2444990cb17f5a8d67eafb021740 (diff) | |
| download | gnumach-7b578f3794dbf1c9cde6bb92f1fc5799a287bd1a.tar.gz gnumach-7b578f3794dbf1c9cde6bb92f1fc5799a287bd1a.tar.bz2 gnumach-7b578f3794dbf1c9cde6bb92f1fc5799a287bd1a.zip | |
acpi_parse_apic: Check CAPABLE bit field on lapic MADT flag
Previously, we were ignoring cpus that were not enabled
but online-capable.
Message-ID: <20241221023937.384420-1-damien@zamaudio.com>
| -rw-r--r-- | i386/i386at/acpi_parse_apic.c | 2 | ||||
| -rw-r--r-- | i386/i386at/acpi_parse_apic.h | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/i386/i386at/acpi_parse_apic.c b/i386/i386at/acpi_parse_apic.c index 24470426..ae92ee2e 100644 --- a/i386/i386at/acpi_parse_apic.c +++ b/i386/i386at/acpi_parse_apic.c @@ -376,7 +376,7 @@ static void acpi_apic_add_lapic(struct acpi_apic_lapic *lapic_entry) { /* If cpu flag is correct */ - if (lapic_entry->flags & 0x1) { + if (lapic_entry->flags & (ACPI_LAPIC_FLAG_ENABLED | ACPI_LAPIC_FLAG_CAPABLE)) { /* Add cpu to processors' list. */ apic_add_cpu(lapic_entry->apic_id); } diff --git a/i386/i386at/acpi_parse_apic.h b/i386/i386at/acpi_parse_apic.h index 85e01170..df8d4bae 100644 --- a/i386/i386at/acpi_parse_apic.h +++ b/i386/i386at/acpi_parse_apic.h @@ -149,6 +149,8 @@ struct acpi_apic_lapic { uint32_t flags; } __attribute__((__packed__)); +#define ACPI_LAPIC_FLAG_ENABLED (1 << 0) +#define ACPI_LAPIC_FLAG_CAPABLE (1 << 1) /* * I/O APIC Structure |