diff options
Diffstat (limited to 'src/cpu/x86')
| -rw-r--r-- | src/cpu/x86/lapic/lapic.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/cpu/x86/lapic/lapic.c b/src/cpu/x86/lapic/lapic.c index 24d2e37d47..8e0449a5fe 100644 --- a/src/cpu/x86/lapic/lapic.c +++ b/src/cpu/x86/lapic/lapic.c @@ -9,6 +9,8 @@ #include <smp/node.h> #include <types.h> +static bool quirk_x2apic_allowed; + void enable_lapic_mode(bool try_set_x2apic) { uintptr_t apic_base; @@ -46,14 +48,18 @@ void enable_lapic_mode(bool try_set_x2apic) die("Switching from X2APIC to XAPIC mode is not implemented."); } + if (CONFIG(X2APIC_LATE_WORKAROUND) && use_x2apic) + quirk_x2apic_allowed = true; } void enable_lapic(void) { bool try_set_x2apic = true; - if (CONFIG(XAPIC_ONLY) || CONFIG(X2APIC_LATE_WORKAROUND)) + if (CONFIG(XAPIC_ONLY)) try_set_x2apic = false; + else if (CONFIG(X2APIC_LATE_WORKAROUND)) + try_set_x2apic = quirk_x2apic_allowed; enable_lapic_mode(try_set_x2apic); } |