Re: [patch V6 01/19] x86/cpu: Provide cpuid_read() et al.
From: Thomas Gleixner
Date: Tue Feb 13 2024 - 18:32:20 EST
On Tue, Feb 13 2024 at 22:36, Borislav Petkov wrote:
> On Tue, Feb 13, 2024 at 10:04:00PM +0100, Thomas Gleixner wrote:
>> +static inline void __cpuid_read(unsigned int leaf, unsigned int subleaf, u32 *regs)
>> +{
>> + regs[CPUID_EAX] = leaf;
>> + regs[CPUID_ECX] = subleaf;
>> + __cpuid(regs, regs + 1, regs + 2, regs + 3);
>
> Yeah,
>
> __cpuid(regs, regs + CPUID_EBX, regs + CPUID_ECX, regs + CPUID_EDX);
>
> explains what those numbers are.
Oops. Sorry, I missed that part of your previous reply and just
responded to the u32 *regs part. I'll send an update tomorrow.
Thanks,
tglx