Displaying 3 results from an estimated 3 matches for "sev_es_add_cpuid_cache".
2020 Apr 28
0
[PATCH v3 64/75] x86/sev-es: Cache CPUID results for improved performance
...ad(&sev_es_cpuid_cache, cache_index);
+ if (!cache_entry)
+ return false;
+
+ ctxt->regs->ax = cache_entry->eax;
+ ctxt->regs->bx = cache_entry->ebx;
+ ctxt->regs->cx = cache_entry->ecx;
+ ctxt->regs->dx = cache_entry->edx;
+
+ return true;
+}
+
+static void sev_es_add_cpuid_cache(struct es_em_ctxt *ctxt,
+ unsigned long cache_index)
+{
+ struct sev_es_cpuid_cache_entry *cache_entry;
+ int ret;
+
+ if (cache_index == ULONG_MAX)
+ return;
+
+ cache_entry = kzalloc(sizeof(*cache_entry), GFP_ATOMIC);
+ if (cache_entry) {
+ cache_entry->eax = ctxt->regs->ax;
+...
2020 Apr 28
116
[PATCH v3 00/75] x86: SEV-ES Guest Support
Hi,
here is the next version of changes to enable Linux to run as an SEV-ES
guest. The code was rebased to v5.7-rc3 and got a fair number of changes
since the last version.
What is SEV-ES
==============
SEV-ES is an acronym for 'Secure Encrypted Virtualization - Encrypted
State' and means a hardware feature of AMD processors which hides the
register state of VCPUs to the hypervisor by
2020 Apr 28
116
[PATCH v3 00/75] x86: SEV-ES Guest Support
Hi,
here is the next version of changes to enable Linux to run as an SEV-ES
guest. The code was rebased to v5.7-rc3 and got a fair number of changes
since the last version.
What is SEV-ES
==============
SEV-ES is an acronym for 'Secure Encrypted Virtualization - Encrypted
State' and means a hardware feature of AMD processors which hides the
register state of VCPUs to the hypervisor by