On Wed, Apr 19, 2017 at 03:41:41PM +0800, Chao Gao wrote: >>> - vlapic->hw.apic_base_msr = (MSR_IA32_APICBASE_ENABLE | >>> - APIC_DEFAULT_PHYS_BASE); >>> + vlapic->hw.apic_base_msr |= APIC_DEFAULT_PHYS_BASE; >> >>Perhaps better move this ahead of the call to vlapic_reset() then >>too. >> >>Remains the question (not answered by the SDM afaics): What >>happens to the base address during reset? > >Actually, I don't know and that's also why I don't touch apic_base_msr in the >first verson. Will try to get a confirmation from hardware guys.
According to the description about APIC base address in "ADVANCED PROGRAMMABLE INTERRUPT CONTROLLER (APIC) -> "LOCAL APIC" -> "Local APIC Status and Location", the APIC base address is set to 0xFEE00000H as a result of reset or power-up. Thanks Chao _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
