On 14/01/25 13:45, Dave Hansen wrote:
> On 1/14/25 09:51, Valentin Schneider wrote:
>> +cr4 = this_cpu_read(cpu_tlbstate.cr4);
>> +asm volatile("mov %0,%%cr4": : "r" (cr4 ^ X86_CR4_PGE) : "memory");
>> +asm volatile("mov %0,%%cr4": : "r" (cr4) : "memory");
>> +/*
>> + * In lieu
On 1/14/25 09:51, Valentin Schneider wrote:
> + cr4 = this_cpu_read(cpu_tlbstate.cr4);
> + asm volatile("mov %0,%%cr4": : "r" (cr4 ^ X86_CR4_PGE) : "memory");
> + asm volatile("mov %0,%%cr4": : "r" (cr4) : "memory");
> + /*
> + * In lieu of not having the pinning crap, hard fai
From: Peter Zijlstra
Later patches will require issuing a __flush_tlb_all() from noinstr code.
This requires making both __flush_tlb_local() and __flush_tlb_global()
noinstr-compliant.
For __flush_tlb_global(), both native_flush_tlb_global() and xen_flush_tlb()
need to be made noinstr.
Forgo us
