From: "Huang, Kai" <kai.huang@intel.com>
To: "Christopherson,, Sean" <seanjc@google.com>
Cc: "Hansen, Dave" <dave.hansen@intel.com>,
"bp@alien8.de" <bp@alien8.de>, "x86@kernel.org" <x86@kernel.org>,
"peterz@infradead.org" <peterz@infradead.org>,
"hpa@zytor.com" <hpa@zytor.com>,
"mingo@redhat.com" <mingo@redhat.com>,
"kirill.shutemov@linux.intel.com"
<kirill.shutemov@linux.intel.com>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"pbonzini@redhat.com" <pbonzini@redhat.com>,
"Yamahata, Isaku" <isaku.yamahata@intel.com>,
"sathyanarayanan.kuppuswamy@linux.intel.com"
<sathyanarayanan.kuppuswamy@linux.intel.com>,
"n.borisov.lkml@gmail.com" <n.borisov.lkml@gmail.com>
Subject: Re: [PATCH v3 10/12] x86/virt/tdx: Wire up basic SEAMCALL functions
Date: Mon, 7 Aug 2023 23:51:01 +0000 [thread overview]
Message-ID: <048399f29d702435c41b11c3ff16a1ae257f70cd.camel@intel.com> (raw)
In-Reply-To: <ZND+Cs8roqwnGba4@google.com>
On Mon, 2023-08-07 at 07:30 -0700, Sean Christopherson wrote:
> On Mon, Aug 07, 2023, Kai Huang wrote:
> >
> > > >
> > > > +config INTEL_TDX_HOST
> > > > + bool "Intel Trust Domain Extensions (TDX) host support"
> > > > + depends on CPU_SUP_INTEL
> > > > + depends on X86_64
> > > > + depends on KVM_INTEL
> > >
> > > Hm. I expected KVM_INTEL to depend on CPU_SUP_INTEL, but apparently no.
> > > Any reasons why?
> >
> > Hmm.. Not sure :-)
>
> Centuar and Zhaoxin CPUs also support VMX.
>
> commit 8f63aaf5c493c6502a058585cdfa3c71cdf8c44a
> Author: Sean Christopherson <seanjc@google.com>
> Date: Fri Dec 20 20:45:13 2019 -0800
>
> KVM: VMX: Allow KVM_INTEL when building for Centaur and/or Zhaoxin CPUs
>
> Change the dependency for KVM_INTEL, i.e. KVM w/ VMX, from Intel CPUs to
> any CPU that supports the IA32_FEAT_CTL MSR and thus VMX functionality.
> This effectively allows building KVM_INTEL for Centaur and Zhaoxin CPUs.
>
Ah. Thanks Sean!
next prev parent reply other threads:[~2023-08-07 23:51 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-26 11:25 [PATCH v3 00/12] Unify TDCALL/SEAMCALL and TDVMCALL assembly Kai Huang
2023-07-26 11:25 ` [PATCH v3 01/12] x86/tdx: Zero out the missing RSI in TDX_HYPERCALL macro Kai Huang
2023-07-27 12:48 ` kirill.shutemov
2023-07-26 11:25 ` [PATCH v3 02/12] x86/tdx: Skip saving output regs when SEAMCALL fails with VMFailInvalid Kai Huang
2023-07-27 12:52 ` kirill.shutemov
2023-07-27 22:55 ` Huang, Kai
2023-07-26 11:25 ` [PATCH v3 03/12] x86/tdx: Make macros of TDCALLs consistent with the spec Kai Huang
2023-07-27 13:00 ` kirill.shutemov
2023-07-28 1:54 ` Sathyanarayanan Kuppuswamy
2023-07-28 2:45 ` Huang, Kai
2023-07-26 11:25 ` [PATCH v3 04/12] x86/tdx: Rename __tdx_module_call() to __tdcall() Kai Huang
2023-07-27 13:02 ` kirill.shutemov
2023-07-28 15:33 ` Sathyanarayanan Kuppuswamy
2023-07-26 11:25 ` [PATCH v3 05/12] x86/tdx: Pass TDCALL/SEAMCALL input/output registers via a structure Kai Huang
2023-07-27 16:36 ` kirill.shutemov
2023-07-27 22:54 ` Huang, Kai
2023-08-03 10:58 ` kirill.shutemov
2023-08-03 11:35 ` Huang, Kai
2023-08-03 11:47 ` kirill.shutemov
2023-07-26 11:25 ` [PATCH v3 06/12] x86/tdx: Extend TDX_MODULE_CALL to support more TDCALL/SEAMCALL leafs Kai Huang
2023-07-27 16:50 ` kirill.shutemov
2023-07-27 22:58 ` Huang, Kai
2023-07-26 11:25 ` [PATCH v3 07/12] x86/tdx: Make TDX_HYPERCALL asm similar to TDX_MODULE_CALL Kai Huang
2023-07-27 17:10 ` kirill.shutemov
2023-07-27 23:05 ` Huang, Kai
2023-08-03 11:45 ` kirill.shutemov
2023-08-03 11:56 ` Huang, Kai
2023-08-03 12:12 ` kirill.shutemov
2023-08-03 12:41 ` Huang, Kai
2023-08-03 13:47 ` kirill.shutemov
2023-08-03 22:41 ` Huang, Kai
2023-07-26 11:25 ` [PATCH v3 08/12] x86/tdx: Reimplement __tdx_hypercall() using TDX_MODULE_CALL asm Kai Huang
2023-08-06 11:25 ` kirill.shutemov
2023-07-26 11:25 ` [PATCH v3 09/12] x86/tdx: Remove 'struct tdx_hypercall_args' Kai Huang
2023-08-06 11:29 ` kirill.shutemov
2023-07-26 11:25 ` [PATCH v3 10/12] x86/virt/tdx: Wire up basic SEAMCALL functions Kai Huang
2023-08-06 11:36 ` kirill.shutemov
2023-08-07 1:40 ` Huang, Kai
2023-08-07 14:30 ` Sean Christopherson
2023-08-07 23:51 ` Huang, Kai [this message]
2023-07-26 11:25 ` [PATCH v3 11/12] x86/virt/tdx: Allow SEAMCALL to handle #UD and #GP Kai Huang
2023-08-06 11:41 ` kirill.shutemov
2023-08-07 2:14 ` Huang, Kai
2023-08-07 9:53 ` kirill.shutemov
2023-08-07 12:41 ` Huang, Kai
2023-08-07 14:27 ` kirill.shutemov
2023-08-07 14:46 ` Dave Hansen
2023-07-26 11:25 ` [PATCH v3 12/12] x86/virt/tdx: Adjust 'struct tdx_module_args' to use x86 "register index" layout Kai Huang
2023-08-02 21:32 ` Isaku Yamahata
2023-08-02 23:20 ` Huang, Kai
2023-08-02 21:39 ` Isaku Yamahata
2023-08-06 11:50 ` kirill.shutemov
2023-08-07 2:16 ` Huang, Kai
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