On Fri, Dec 16, 2016 at 11:39:52AM -0500, Boris Ostrovsky wrote:
> When CONFIG_PARAVIRT is selected, cpuid() becomes a call. Since
> for 32-bit kernels load_ucode_amd_bsp() is executed before paging
> is enabled the call cannot be completed (as kernel virtual addresses
> are not reachable yet).
>
When CONFIG_PARAVIRT is selected, cpuid() becomes a call. Since
for 32-bit kernels load_ucode_amd_bsp() is executed before paging
is enabled the call cannot be completed (as kernel virtual addresses
are not reachable yet).
Use native_cpuid() instead which is an asm wrapper for CPUID instruction.
