diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/smpboot_64.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c index cfcfd2c2062..d7b59d6c696 100644 --- a/arch/x86/kernel/smpboot_64.c +++ b/arch/x86/kernel/smpboot_64.c @@ -295,6 +295,15 @@ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int sta unsigned long send_status, accept_status = 0; int maxlvt, num_starts, j; + /* + * Be paranoid about clearing APIC errors. + */ + if (APIC_INTEGRATED(apic_version[phys_apicid])) { + apic_read_around(APIC_SPIV); + apic_write(APIC_ESR, 0); + apic_read(APIC_ESR); + } + Dprintk("Asserting INIT.\n"); /* @@ -327,7 +336,10 @@ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int sta mb(); atomic_set(&init_deasserted, 1); - num_starts = 2; + if (APIC_INTEGRATED(apic_version[phys_apicid])) + num_starts = 2; + else + num_starts = 0; /* * Paravirt / VMI wants a startup IPI hook here to set up the |