Re: [PATCH v8 11/55] i386/tdx: Wire CPU features up with attributes of TD guest

2025-04-22 Thread Zhao Liu
On Tue, Apr 01, 2025 at 09:01:21AM -0400, Xiaoyao Li wrote: > Date: Tue, 1 Apr 2025 09:01:21 -0400 > From: Xiaoyao Li > Subject: [PATCH v8 11/55] i386/tdx: Wire CPU features up with attributes of > TD guest > X-Mailer: git-send-email 2.34.1 > > For QEMU VMs, >

Re: [PATCH v8 11/55] i386/tdx: Wire CPU features up with attributes of TD guest

2025-04-04 Thread Daniel P . Berrangé
On Tue, Apr 01, 2025 at 09:01:21AM -0400, Xiaoyao Li wrote: > For QEMU VMs, > - PKS is configured via CPUID_7_0_ECX_PKS, e.g., -cpu xxx,+pks and > - PMU is configured by x86cpu->enable_pmu, e.g., -cpu xxx,pmu=on > > While the bit 30 (PKS) and bit 63 (PERFMON) of TD's attributes are also > use

[PATCH v8 11/55] i386/tdx: Wire CPU features up with attributes of TD guest

2025-04-01 Thread Xiaoyao Li
For QEMU VMs, - PKS is configured via CPUID_7_0_ECX_PKS, e.g., -cpu xxx,+pks and - PMU is configured by x86cpu->enable_pmu, e.g., -cpu xxx,pmu=on While the bit 30 (PKS) and bit 63 (PERFMON) of TD's attributes are also used to configure the PKS and PERFMON/PMU of TD, reuse the existing configu