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From: "Kuppuswamy, Sathyanarayanan"  <sathyanarayanan.kuppuswamy@linux.intel.com>
To: Dave Hansen <dave.hansen@intel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Andy Lutomirski <luto@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>, Andi Kleen <ak@linux.intel.com>,
	Kirill Shutemov <kirill.shutemov@linux.intel.com>,
	Kuppuswamy Sathyanarayanan <knsathya@kernel.org>,
	Dan Williams <dan.j.williams@intel.com>,
	Raj Ashok <ashok.raj@intel.com>,
	Sean Christopherson <seanjc@google.com>,
	linux-kernel@vger.kernel.org,
	Isaku Yamahata <isaku.yamahata@intel.com>
Subject: Re: [RFC v2-fix 1/1] x86/tdx: Wire up KVM hypercalls
Date: Tue, 18 May 2021 13:12:16 -0700	[thread overview]
Message-ID: <d669889f-23e0-5f21-60ab-b550d5934364@linux.intel.com> (raw)
In-Reply-To: <f9bbc6b2-c7ac-3f36-08e3-9c4da68a6a9d@intel.com>



On 5/18/21 8:51 AM, Dave Hansen wrote:
> Question for KVM folks: Should all of these guest patches say:
> "x86/tdx/guest:" or something?  It seems like that would put us all in
> the right frame of mind as we review these.  It's kinda easy (for me at
> least) to get lost about which side I'm looking at sometimes.
> 
> On 5/17/21 5:15 PM, Kuppuswamy Sathyanarayanan wrote:
>> From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
>>
>> KVM hypercalls use the "vmcall" or "vmmcall" instructions.
>> Although the ABI is similar, those instructions no longer
>> function for TDX guests. Make vendor specififc TDVMCALLs
> 
> 				"vendor-specific"
> 
> 		    Hyphen and spelling ^

I will fix it next version.

> 
>> instead of VMCALL.
> 
> This would also be a great place to say:
> 
> This enables TDX guests to run with KVM acting as the hypervisor.  TDX
> guests running under other hypervisors will continue to use those
> hypervisors hypercalls.

I will include it.

> 
>> [Isaku: proposed KVM VENDOR string]
>> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
>> Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
>> Reviewed-by: Andi Kleen <ak@linux.intel.com>
>> Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
> 
> This SoB chain is odd.  Kirill wrote this, sent it to Isaku, who sent it
> to Sathya?

Initially we have used "0" as vendor ID for KVM. But Isaku proposed a new
value for it and sent a patch to fix it. But, I did not want to carry it as
separate patch (for one line change). So I have merged his change with
this patch, and added his signed-off with comment ([Isaku: proposed KVM VENDOR string])

+#define TDVMCALL_VENDOR_KVM            0x4d564b2e584454 /* "TDX.KVM" */


> 
>> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
>> index 9e0e0ff76bab..768df1b98487 100644
>> --- a/arch/x86/Kconfig
>> +++ b/arch/x86/Kconfig
>> @@ -886,6 +886,12 @@ config INTEL_TDX_GUEST
>>   	  run in a CPU mode that protects the confidentiality of TD memory
>>   	  contents and the TD’s CPU state from other software, including VMM.
>>   
>> +config INTEL_TDX_GUEST_KVM
>> +	def_bool y
>> +	depends on KVM_GUEST && INTEL_TDX_GUEST
>> +	help
>> +	 This option enables KVM specific hypercalls in TDX guest.
> 
> For something that's not user-visible, I'd probably just add a Kconfig
> comment rather than help text.

If it is the preferred approach, I can remove it.

> 
> ...
>> diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
>> index 7966c10ea8d1..a90fec004844 100644
>> --- a/arch/x86/kernel/Makefile
>> +++ b/arch/x86/kernel/Makefile
>> @@ -128,6 +128,7 @@ obj-$(CONFIG_X86_PMEM_LEGACY_DEVICE) += pmem.o
>>   
>>   obj-$(CONFIG_JAILHOUSE_GUEST)	+= jailhouse.o
>>   obj-$(CONFIG_INTEL_TDX_GUEST)	+= tdcall.o tdx.o
>> +obj-$(CONFIG_INTEL_TDX_GUEST_KVM) += tdx-kvm.o
> 
> Is the indentation consistent with the other items near "tdx-kvm.o" in
> the Makefile?

Yes. For longer config names, common indentation is not maintained. Please
check the PMEM example.

126 obj-$(CONFIG_PARAVIRT_CLOCK)    += pvclock.o
127 obj-$(CONFIG_X86_PMEM_LEGACY_DEVICE) += pmem.o
128
129 obj-$(CONFIG_JAILHOUSE_GUEST)   += jailhouse.o
130 obj-$(CONFIG_INTEL_TDX_GUEST)   += tdcall.o tdx.o
131 obj-$(CONFIG_INTEL_TDX_GUEST_KVM) += tdx-kvm.o


> 
> ...
>> +/* Used by kvm_hypercall4() to trigger hypercall in TDX guest */
>> +long tdx_kvm_hypercall4(unsigned int nr, unsigned long p1, unsigned long p2,
>> +		unsigned long p3, unsigned long p4)
>> +{
>> +	return tdx_kvm_hypercall(nr, p1, p2, p3, p4);
>> +}
>> +EXPORT_SYMBOL_GPL(tdx_kvm_hypercall4);
> 
> I always forget that KVM code is goofy and needs to have things in C
> files so you can export the symbols.  Could you add a sentence to the
> changelog to this effect?
> 
> Code-wise, this is fine.  Just a few tweaks and I'll be happy to ack
> this one.

Will add it.

     Since KVM hypercall functions can be included and called
     from kernel modules, export tdx_kvm_hypercall*() functions
     to avoid symbol errors


> 

-- 
Sathyanarayanan Kuppuswamy
Linux Kernel Developer

  parent reply	other threads:[~2021-05-18 20:12 UTC|newest]

Thread overview: 386+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-26 18:01 [RFC v2 00/32] Add TDX Guest Support Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 01/32] x86/paravirt: Introduce CONFIG_PARAVIRT_XL Kuppuswamy Sathyanarayanan
2021-04-27 17:31   ` Borislav Petkov
2021-05-06 14:59     ` Kirill A. Shutemov
2021-05-10  8:07     ` Juergen Gross
2021-05-10 15:52       ` Andi Kleen
2021-05-10 15:56         ` Juergen Gross
2021-05-12 12:07           ` Kirill A. Shutemov
2021-05-12 13:18           ` Peter Zijlstra
2021-05-12 13:24             ` Andi Kleen
2021-05-12 13:51               ` Juergen Gross
2021-05-17 23:50                 ` [RFC v2-fix 1/1] x86/paravirt: Move halt paravirt calls under CONFIG_PARAVIRT Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 02/32] x86/tdx: Introduce INTEL_TDX_GUEST config option Kuppuswamy Sathyanarayanan
2021-04-26 21:09   ` Randy Dunlap
2021-04-26 22:32     ` Kuppuswamy, Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 03/32] x86/cpufeatures: Add TDX Guest CPU feature Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 04/32] x86/x86: Add is_tdx_guest() interface Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 05/32] x86/tdx: Add __tdcall() and __tdvmcall() helper functions Kuppuswamy Sathyanarayanan
2021-04-26 20:32   ` Dave Hansen
2021-04-26 22:31     ` Kuppuswamy, Sathyanarayanan
2021-04-26 23:17       ` Dave Hansen
2021-04-27  2:29         ` Kuppuswamy, Sathyanarayanan
2021-04-27 14:29           ` Dave Hansen
2021-04-27 19:18             ` Kuppuswamy, Sathyanarayanan
2021-04-27 19:20               ` Dave Hansen
2021-04-28 17:42                 ` [PATCH v1 1/1] x86/tdx: Add __tdx_module_call() and __tdx_hypercall() " Kuppuswamy Sathyanarayanan
2021-05-19  5:58                 ` [RFC v2-fix-v1 " Kuppuswamy Sathyanarayanan
2021-05-19  6:04                   ` Kuppuswamy, Sathyanarayanan
2021-05-19 15:31                   ` Dave Hansen
2021-05-19 19:09                     ` [RFC v2-fix-v2 " Kuppuswamy Sathyanarayanan
2021-05-19 19:13                     ` [RFC v2-fix-v1 " Kuppuswamy, Sathyanarayanan
2021-05-19 20:09                       ` Sean Christopherson
2021-05-19 20:49                         ` Andi Kleen
2021-05-27  0:30                           ` [RFC v2-fix-v2 " Kuppuswamy Sathyanarayanan
2021-05-27 15:25                             ` Luck, Tony
2021-05-27 15:52                               ` Kuppuswamy, Sathyanarayanan
2021-05-27 16:25                                 ` Luck, Tony
2021-04-26 18:01 ` [RFC v2 06/32] x86/tdx: Get TD execution environment information via TDINFO Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 07/32] x86/traps: Add do_general_protection() helper function Kuppuswamy Sathyanarayanan
2021-05-07 21:20   ` Dave Hansen
2021-04-26 18:01 ` [RFC v2 08/32] x86/traps: Add #VE support for TDX guest Kuppuswamy Sathyanarayanan
2021-05-07 21:36   ` Dave Hansen
2021-05-13 19:47     ` Andi Kleen
2021-05-13 20:07       ` Dave Hansen
2021-05-13 22:43         ` Andi Kleen
2021-05-13 20:14       ` Dave Hansen
2021-05-18  0:09     ` [RFC v2-fix 1/1] " Kuppuswamy Sathyanarayanan
2021-05-18 15:11       ` Dave Hansen
2021-05-18 15:45         ` Andi Kleen
2021-05-18 15:56           ` Dave Hansen
2021-05-18 16:00             ` Andi Kleen
2021-05-21 19:22           ` Dan Williams
2021-05-24 14:02             ` Andi Kleen
2021-05-27  0:29               ` [RFC v2-fix-v2 " Kuppuswamy Sathyanarayanan
2021-05-27 15:11                 ` Luck, Tony
2021-05-27 16:24                   ` Sean Christopherson
2021-05-27 16:36                     ` Dave Hansen
2021-05-21 18:45       ` [RFC v2-fix " Kuppuswamy, Sathyanarayanan
2021-05-21 19:15         ` Dave Hansen
2021-05-21 19:57           ` Kuppuswamy, Sathyanarayanan
2021-06-08 17:02   ` [RFC v2 08/32] " Dave Hansen
2021-06-08 17:48     ` Sean Christopherson
2021-06-08 17:53       ` Dave Hansen
2021-06-08 18:12         ` Andi Kleen
2021-06-08 18:15           ` Dave Hansen
2021-06-08 18:17             ` Andy Lutomirski
2021-06-08 18:18             ` Andi Kleen
2021-04-26 18:01 ` [RFC v2 09/32] x86/tdx: Add HLT " Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 10/32] x86/tdx: Wire up KVM hypercalls Kuppuswamy Sathyanarayanan
2021-05-07 21:46   ` Dave Hansen
2021-05-08  0:59     ` Kuppuswamy, Sathyanarayanan
2021-05-12 13:00       ` Kirill A. Shutemov
2021-05-12 14:10         ` Kuppuswamy, Sathyanarayanan
2021-05-12 14:29           ` Dave Hansen
2021-05-13 19:29             ` Kuppuswamy, Sathyanarayanan
2021-05-13 19:33               ` Dave Hansen
2021-05-18  0:15                 ` [RFC v2-fix 1/1] " Kuppuswamy Sathyanarayanan
2021-05-18 15:51                   ` Dave Hansen
2021-05-18 16:23                     ` Sean Christopherson
2021-05-18 20:12                     ` Kuppuswamy, Sathyanarayanan [this message]
2021-05-18 20:19                       ` Dave Hansen
2021-05-18 20:57                         ` Kuppuswamy, Sathyanarayanan
2021-05-18 21:19                         ` [RFC v2-fix-v2 " Kuppuswamy Sathyanarayanan
2021-05-18 23:29                           ` Dave Hansen
2021-05-19  1:17                             ` [RFC v2-fix-v3 " Kuppuswamy Sathyanarayanan
2021-05-19  1:20                               ` Sathyanarayanan Kuppuswamy Natarajan
2021-04-26 18:01 ` [RFC v2 11/32] x86/tdx: Add MSR support for TDX guest Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 12/32] x86/tdx: Handle CPUID via #VE Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 13/32] x86/io: Allow to override inX() and outX() implementation Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 14/32] x86/tdx: Handle port I/O Kuppuswamy Sathyanarayanan
2021-05-10 21:57   ` Dan Williams
2021-05-10 23:08     ` Andi Kleen
2021-05-10 23:34       ` Dan Williams
2021-05-11  0:01         ` Andi Kleen
2021-05-11  0:21           ` Dan Williams
2021-05-11  0:30         ` Kuppuswamy, Sathyanarayanan
2021-05-11  1:07           ` Dan Williams
2021-05-11  2:29             ` Kuppuswamy, Sathyanarayanan
2021-05-11 14:39               ` Dave Hansen
2021-05-11 15:08                 ` Kuppuswamy, Sathyanarayanan
2021-05-11  0:56         ` Kuppuswamy, Sathyanarayanan
2021-05-11  2:19           ` Andi Kleen
2021-05-11 15:35     ` Dave Hansen
2021-05-11 15:43       ` Dan Williams
2021-05-12  6:17       ` Dan Williams
2021-05-27  4:23         ` [RFC v2-fix-v1 0/3] " Kuppuswamy Sathyanarayanan
2021-05-27  4:23           ` [RFC v2-fix-v1 1/3] tdx: Introduce generic protected_guest abstraction Kuppuswamy Sathyanarayanan
2021-06-01 21:14             ` [RFC v2-fix-v2 1/1] x86: Introduce generic protected guest abstraction Kuppuswamy Sathyanarayanan
2021-06-02 17:20               ` Sean Christopherson
2021-06-02 18:15                 ` Tom Lendacky
2021-06-02 18:25                   ` Kuppuswamy, Sathyanarayanan
2021-06-02 18:29                   ` Borislav Petkov
2021-06-02 18:32                     ` Kuppuswamy, Sathyanarayanan
2021-06-02 18:39                       ` Borislav Petkov
2021-06-02 18:45                         ` Kuppuswamy, Sathyanarayanan
2021-06-02 18:19               ` Tom Lendacky
2021-06-02 18:29                 ` Kuppuswamy, Sathyanarayanan
2021-06-02 18:30                 ` Borislav Petkov
2021-06-03 18:14               ` Borislav Petkov
2021-06-03 18:15                 ` [RFC v2-fix-v2 1/1] x86: Introduce generic protected guest abstractionn Borislav Petkov
2021-06-04 22:01                   ` Tom Lendacky
2021-06-04 22:13                     ` Kuppuswamy, Sathyanarayanan
2021-06-04 22:15                     ` Borislav Petkov
2021-06-04 23:31                       ` Tom Lendacky
2021-06-05 11:03                         ` Borislav Petkov
2021-06-05 18:12                           ` Kuppuswamy, Sathyanarayanan
2021-06-05 20:08                             ` Borislav Petkov
2021-06-07 19:55                   ` Kirill A. Shutemov
2021-06-07 20:14                     ` Borislav Petkov
2021-06-07 22:26                       ` Kuppuswamy, Sathyanarayanan
2021-06-08 21:30                         ` [RFC v2-fix-v3 1/1] x86: Introduce generic protected guest abstraction Kuppuswamy Sathyanarayanan
2021-06-03 18:33                 ` [RFC v2-fix-v2 " Kuppuswamy, Sathyanarayanan
2021-06-03 18:41                   ` Borislav Petkov
2021-06-03 18:54                     ` Kuppuswamy, Sathyanarayanan
2021-06-07 18:01                 ` Kuppuswamy, Sathyanarayanan
2021-06-07 18:26                   ` Borislav Petkov
2021-06-09 14:01                     ` Kuppuswamy, Sathyanarayanan
2021-06-09 14:32                       ` Borislav Petkov
2021-06-09 14:56                         ` Kuppuswamy, Sathyanarayanan
2021-06-09 15:01                           ` Borislav Petkov
2021-06-09 19:41                             ` [RFC v2-fix-v4 " Kuppuswamy Sathyanarayanan
2021-06-09 22:53                               ` Sathyanarayanan Kuppuswamy Natarajan
2021-05-27  4:23           ` [RFC v2-fix-v1 2/3] x86/tdx: Handle early IO operations Kuppuswamy Sathyanarayanan
2021-06-05  4:26             ` Williams, Dan J
2021-05-27  4:23           ` [RFC v2-fix-v1 3/3] x86/tdx: Handle port I/O Kuppuswamy Sathyanarayanan
2021-06-05 18:52             ` Dan Williams
2021-06-05 20:08               ` Kuppuswamy, Sathyanarayanan
2021-06-05 21:08                 ` Dan Williams
2021-06-07 16:24                   ` Kuppuswamy, Sathyanarayanan
2021-06-07 17:17                     ` Dan Williams
2021-06-07 21:52                       ` Kuppuswamy, Sathyanarayanan
2021-06-07 22:00                         ` Dan Williams
2021-06-08  2:57                           ` Andi Kleen
2021-06-08 15:40                       ` [RFC v2-fix-v2 0/3] " Kuppuswamy Sathyanarayanan
2021-06-08 15:40                         ` [RFC v2-fix-v2 1/3] x86/tdx: Handle port I/O in decompression code Kuppuswamy Sathyanarayanan
2021-06-08 23:12                           ` Dan Williams
2021-06-08 15:40                         ` [RFC v2-fix-v2 2/3] x86/tdx: Handle early IO operations Kuppuswamy Sathyanarayanan
2021-06-08 15:40                         ` [RFC v2-fix-v2 3/3] x86/tdx: Handle port I/O Kuppuswamy Sathyanarayanan
2021-06-08 16:26                           ` Dan Williams
2021-04-26 18:01 ` [RFC v2 15/32] x86/tdx: Handle in-kernel MMIO Kuppuswamy Sathyanarayanan
2021-05-07 21:52   ` Dave Hansen
2021-05-18  0:48     ` [RFC v2-fix 1/1] " Kuppuswamy Sathyanarayanan
2021-05-18 15:00       ` Dave Hansen
2021-05-18 15:56         ` Andi Kleen
2021-05-18 16:04           ` Dave Hansen
2021-05-18 16:10             ` Andi Kleen
2021-05-18 16:22               ` Dave Hansen
2021-05-18 17:05                 ` Andi Kleen
2021-05-18 17:28               ` Andi Kleen
2021-05-18 17:11           ` Sean Christopherson
2021-05-18 17:21             ` Andi Kleen
2021-05-18 17:46               ` Dave Hansen
2021-05-18 18:36                 ` Sean Christopherson
2021-05-18 20:20                 ` Andi Kleen
2021-05-18 20:40                   ` Dave Hansen
2021-05-18 21:05                     ` Andi Kleen
2021-05-18 18:22               ` Sean Christopherson
2021-05-18 20:28                 ` Andi Kleen
2021-05-18 20:37                   ` Sean Christopherson
2021-05-18 20:56                     ` Andi Kleen
2021-05-18 16:18         ` Sean Christopherson
2021-05-18 17:15           ` Andi Kleen
2021-05-18 18:17             ` Sean Christopherson
2021-05-20 22:47               ` Kirill A. Shutemov
2021-06-02 19:42     ` [RFC v2-fix-v2 0/2] " Kuppuswamy Sathyanarayanan
2021-06-02 19:42       ` [RFC v2-fix-v2 1/2] x86/sev-es: Abstract out MMIO instruction decoding Kuppuswamy Sathyanarayanan
2021-06-05 21:56         ` Dan Williams
2021-06-08 15:59           ` [RFC v2-fix-v3 0/4] x86/tdx: Handle in-kernel MMIO Kuppuswamy Sathyanarayanan
2021-06-08 15:59             ` [RFC v2-fix-v3 1/4] x86/insn-eval: Introduce insn_get_modrm_reg_ptr() Kuppuswamy Sathyanarayanan
2021-06-08 15:59             ` [RFC v2-fix-v3 2/4] x86/insn-eval: Introduce insn_decode_mmio() Kuppuswamy Sathyanarayanan
2021-06-08 15:59             ` [RFC v2-fix-v3 3/4] x86/sev-es: Use insn_decode_mmio() for MMIO implementation Kuppuswamy Sathyanarayanan
2021-06-08 15:59             ` [RFC v2-fix-v3 4/4] x86/tdx: Handle in-kernel MMIO Kuppuswamy Sathyanarayanan
2021-06-02 19:42       ` [RFC v2-fix-v2 2/2] " Kuppuswamy Sathyanarayanan
2021-06-02 21:01         ` Andi Kleen
2021-06-02 22:14           ` Kuppuswamy, Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 16/32] x86/tdx: Handle MWAIT, MONITOR and WBINVD Kuppuswamy Sathyanarayanan
2021-05-11  1:23   ` Dan Williams
2021-05-11  2:17     ` Andi Kleen
2021-05-11  2:44       ` Kuppuswamy, Sathyanarayanan
2021-05-11  2:51         ` Andi Kleen
2021-05-11 15:37       ` Dan Williams
2021-05-11 15:42         ` Andi Kleen
2021-05-11 15:44         ` Dave Hansen
2021-05-11 15:50           ` Dan Williams
2021-05-11 15:52             ` Andi Kleen
2021-05-11 16:04               ` Dave Hansen
2021-05-11 17:06                 ` Andi Kleen
2021-05-11 17:42                   ` Dave Hansen
2021-05-11 17:48                     ` Andi Kleen
2021-05-24 23:32                       ` [RFC v2-fix-v2 1/2] x86/tdx: Handle MWAIT and MONITOR Kuppuswamy Sathyanarayanan
2021-05-24 23:32                         ` [RFC v2-fix-v2 2/2] x86/tdx: Ignore WBINVD instruction for TDX guest Kuppuswamy Sathyanarayanan
2021-05-24 23:39                           ` Dan Williams
2021-05-25  0:29                             ` Kuppuswamy, Sathyanarayanan
2021-05-25  0:50                               ` Dan Williams
2021-05-25  0:54                                 ` Sean Christopherson
2021-05-25  1:02                                 ` Andi Kleen
2021-05-25  1:45                                   ` Dan Williams
2021-05-25  2:13                                     ` Andi Kleen
2021-05-25  2:49                                       ` Dan Williams
2021-05-25  3:27                                         ` Andi Kleen
2021-05-25  3:40                                           ` Dan Williams
2021-05-26  1:09                                             ` Andi Kleen
2021-05-27  4:38                                               ` [RFC v2-fix-v3 1/1] " Kuppuswamy Sathyanarayanan
2021-06-05  3:35                                                 ` Dan Williams
2021-06-08 21:35                                                   ` [RFC v2-fix-v3 1/1] x86/tdx: Skip " Kuppuswamy Sathyanarayanan
2021-06-08 21:41                                                     ` Dan Williams
2021-06-08 22:17                                                     ` Dave Hansen
2021-06-08 22:34                                                       ` Andi Kleen
2021-06-08 22:36                                                       ` Kuppuswamy, Sathyanarayanan
2021-06-08 22:53                                                         ` Dave Hansen
2021-06-08 23:04                                                           ` Andi Kleen
2021-06-08 23:04                                                           ` Kuppuswamy, Sathyanarayanan
2021-06-08 23:32                                                     ` Dan Williams
2021-06-08 23:38                                                       ` Dave Hansen
2021-06-09  0:07                                                         ` Dan Williams
2021-06-09  0:14                                                           ` Kuppuswamy, Sathyanarayanan
2021-06-09  1:10                                                           ` [RFC v2-fix-v4 " Kuppuswamy Sathyanarayanan
2021-06-09  3:40                                                             ` Dan Williams
2021-06-09  3:56                                                               ` Kuppuswamy, Sathyanarayanan
2021-06-09  4:19                                                                 ` Dan Williams
2021-06-09  4:27                                                                   ` Andi Kleen
2021-06-09 15:09                                                                     ` Dan Williams
2021-06-09 16:12                                                                       ` Andy Lutomirski
2021-06-09 17:28                                                                         ` Kuppuswamy, Sathyanarayanan
2021-06-09 17:31                                                                           ` Dan Williams
2021-06-09 18:24                                                                             ` Kuppuswamy, Sathyanarayanan
2021-06-09 19:49                                                                               ` [RFC v2-fix-v5 1/1] x86: Skip WBINVD instruction for VM guest Kuppuswamy Sathyanarayanan
2021-06-09 19:56                                                                                 ` Dan Williams
2021-06-09 21:03                                                                                 ` Dave Hansen
2021-06-09 21:38                                                                                   ` Dan Williams
2021-06-09 21:42                                                                                     ` Kuppuswamy, Sathyanarayanan
2021-06-09 23:55                                                                                       ` Dave Hansen
2021-06-09  4:02                                                               ` [RFC v2-fix-v4 1/1] x86/tdx: Skip WBINVD instruction for TDX guest Andy Lutomirski
2021-06-09  4:21                                                                 ` Dan Williams
2021-06-09  4:25                                                                 ` Andi Kleen
2021-06-09  4:32                                                                   ` Andy Lutomirski
2021-06-09  4:40                                                                     ` Andi Kleen
2021-06-09  4:54                                                                       ` Kuppuswamy, Sathyanarayanan
2021-06-09 14:12                                                             ` Dave Hansen
2021-05-25  4:32                                       ` [RFC v2-fix-v2 2/2] x86/tdx: Ignore " Dave Hansen
2021-05-25  0:36                             ` Andi Kleen
2021-05-24 23:42                           ` Dave Hansen
2021-05-25  0:39                             ` Andi Kleen
2021-05-25  0:53                               ` Dan Williams
2021-05-25  2:26                         ` [RFC v2-fix-v2 1/2] x86/tdx: Handle MWAIT and MONITOR Dan Williams
2021-05-11 14:08     ` [RFC v2 16/32] x86/tdx: Handle MWAIT, MONITOR and WBINVD Dave Hansen
2021-05-11 16:09       ` Sean Christopherson
2021-05-11 16:16         ` Dave Hansen
2021-05-11 15:53   ` Dave Hansen
2021-04-26 18:01 ` [RFC v2 17/32] ACPICA: ACPI 6.4: MADT: add Multiprocessor Wakeup Structure Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 18/32] ACPICA: ACPI 6.4: MADT: add Multiprocessor Wakeup Mailbox Structure Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 19/32] ACPI/table: Print MADT Wake table information Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 20/32] x86/acpi, x86/boot: Add multiprocessor wake-up support Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 21/32] x86/boot: Add a trampoline for APs booting in 64-bit mode Kuppuswamy Sathyanarayanan
2021-05-13  2:56   ` Dan Williams
2021-05-18  0:54     ` [RFC v2-fix 1/1] " Kuppuswamy Sathyanarayanan
2021-05-18  2:06       ` Dan Williams
2021-05-18  2:53         ` Kuppuswamy, Sathyanarayanan
2021-05-18  4:08           ` Dan Williams
2021-05-20  0:18             ` Kuppuswamy, Sathyanarayanan
2021-05-20  0:40               ` Dan Williams
2021-05-20  0:42                 ` Kuppuswamy, Sathyanarayanan
2021-05-21 14:39                   ` [RFC v2-fix-v2 " Kuppuswamy Sathyanarayanan
2021-05-21 18:29                     ` Dan Williams
2021-05-22 18:17                     ` kernel test robot
2021-05-22 22:50                     ` kernel test robot
2021-04-26 18:01 ` [RFC v2 22/32] x86/boot: Avoid #VE during compressed boot for TDX platforms Kuppuswamy Sathyanarayanan
2021-05-13  3:03   ` Dan Williams
2021-04-26 18:01 ` [RFC v2 23/32] x86/boot: Avoid unnecessary #VE during boot process Kuppuswamy Sathyanarayanan
2021-05-13  3:23   ` Dan Williams
2021-05-18  0:59     ` [WARNING: UNSCANNABLE EXTRACTION FAILED][WARNING: UNSCANNABLE EXTRACTION FAILED][RFC v2-fix 1/1] x86/boot: Avoid #VE during boot for TDX platforms Kuppuswamy Sathyanarayanan
2021-05-19 16:53       ` [RFC " Dave Hansen
2021-05-21 14:35         ` [RFC v2-fix-v2 " Kuppuswamy Sathyanarayanan
2021-05-21 16:11           ` Dave Hansen
2021-05-21 18:18             ` Sean Christopherson
2021-05-21 18:30               ` Dave Hansen
2021-05-21 18:32                 ` Kuppuswamy, Sathyanarayanan
2021-05-24 23:27                   ` [RFC v2-fix-v3 " Kuppuswamy Sathyanarayanan
2021-05-27 21:25                     ` [RFC v2-fix-v4 " Kuppuswamy Sathyanarayanan
2021-06-08 23:14                       ` Dan Williams
2021-05-21 18:31             ` [RFC v2-fix-v2 " Kuppuswamy, Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 24/32] x86/topology: Disable CPU online/offline control for TDX guest Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 25/32] x86/tdx: Forcefully disable legacy PIC for TDX guests Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 26/32] x86/mm: Move force_dma_unencrypted() to common code Kuppuswamy Sathyanarayanan
2021-05-07 21:54   ` Dave Hansen
2021-05-10 22:19     ` Kuppuswamy, Sathyanarayanan
2021-05-10 22:23       ` Dave Hansen
2021-05-12 13:08         ` Kirill A. Shutemov
2021-05-12 15:44           ` Dave Hansen
2021-05-12 15:53             ` Sean Christopherson
2021-05-13 16:40               ` Kuppuswamy, Sathyanarayanan
2021-05-13 17:49                 ` Dave Hansen
2021-05-13 18:17                   ` Kuppuswamy, Sathyanarayanan
2021-05-13 19:38                   ` Andi Kleen
2021-05-13 19:42                     ` Dave Hansen
2021-05-17 18:16                     ` Sean Christopherson
2021-05-17 18:27                       ` Kuppuswamy, Sathyanarayanan
2021-05-17 18:33                         ` Dave Hansen
2021-05-17 18:37                           ` Sean Christopherson
2021-05-17 22:32                             ` Kuppuswamy, Sathyanarayanan
2021-05-17 23:11                               ` Andi Kleen
2021-05-18  1:28             ` Kuppuswamy, Sathyanarayanan
2021-05-27  4:46               ` Kuppuswamy, Sathyanarayanan
2021-05-27  4:47                 ` [RFC v2-fix-v1 1/1] " Kuppuswamy Sathyanarayanan
2021-06-01  2:10                   ` [RFC v2-fix-v2 " Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 27/32] x86/tdx: Exclude Shared bit from __PHYSICAL_MASK Kuppuswamy Sathyanarayanan
2021-05-19  5:00   ` Kuppuswamy, Sathyanarayanan
2021-05-19 16:14   ` Dave Hansen
2021-05-20 18:48     ` Kuppuswamy, Sathyanarayanan
2021-05-20 18:56       ` Kuppuswamy, Sathyanarayanan
2021-05-20 19:33       ` Sean Christopherson
2021-05-20 19:42         ` Kuppuswamy, Sathyanarayanan
2021-05-20 20:16           ` Sean Christopherson
2021-05-20 20:31             ` Andi Kleen
2021-05-20 21:18               ` Sean Christopherson
2021-05-20 21:23                 ` Dave Hansen
2021-05-20 21:28                   ` Kuppuswamy, Sathyanarayanan
2021-05-20 23:25                     ` Andi Kleen
2021-05-20 20:56             ` Dave Hansen
2021-05-31 21:46               ` Kirill A. Shutemov
2021-06-01  2:08                 ` [RFC v2-fix-v1 1/1] x86/tdx: Exclude Shared bit from physical_mask Kuppuswamy Sathyanarayanan
2021-05-20 20:30       ` [RFC v2 27/32] x86/tdx: Exclude Shared bit from __PHYSICAL_MASK Dave Hansen
2021-04-26 18:01 ` [RFC v2 28/32] x86/tdx: Make pages shared in ioremap() Kuppuswamy Sathyanarayanan
2021-05-07 21:55   ` Dave Hansen
2021-05-07 22:38     ` Andi Kleen
2021-05-10 22:23       ` Kuppuswamy, Sathyanarayanan
2021-05-10 22:30         ` Dave Hansen
2021-05-10 22:52           ` Sean Christopherson
2021-05-11  9:35             ` Borislav Petkov
2021-05-20 20:12               ` Kuppuswamy, Sathyanarayanan
2021-05-21 15:18                 ` Borislav Petkov
2021-05-21 16:19                   ` Tom Lendacky
2021-05-21 18:49                     ` Borislav Petkov
2021-05-21 21:14                       ` Tom Lendacky
2021-05-25 18:21                         ` Kuppuswamy, Sathyanarayanan
2021-05-31 15:13                           ` Borislav Petkov
2021-05-31 17:32                             ` Kuppuswamy, Sathyanarayanan
2021-05-31 17:55                               ` Borislav Petkov
2021-05-31 18:45                                 ` Kuppuswamy, Sathyanarayanan
2021-05-31 19:14                                   ` Borislav Petkov
2021-06-01  2:07                                     ` [RFC v2-fix-v1 1/1] " Kuppuswamy Sathyanarayanan
2021-06-01  2:50                                       ` kernel test robot
2021-06-01  4:29                                       ` kernel test robot
2021-06-01 21:16                                     ` [RFC v2 28/32] " Kuppuswamy, Sathyanarayanan
2021-05-26 21:37                     ` Kuppuswamy, Sathyanarayanan
2021-05-26 22:02                       ` Tom Lendacky
2021-05-26 22:14                         ` Tom Lendacky
2021-05-26 22:20                           ` Kuppuswamy, Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 29/32] x86/tdx: Add helper to do MapGPA TDVMALL Kuppuswamy Sathyanarayanan
2021-05-19 15:59   ` Dave Hansen
2021-05-20 23:14     ` Kuppuswamy, Sathyanarayanan
2021-05-27  4:56       ` [RFC v2-fix-v1 1/1] x86/tdx: Add helper to do MapGPA hypercall Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 30/32] x86/tdx: Make DMA pages shared Kuppuswamy Sathyanarayanan
2021-05-18  1:19   ` [RFC v2-fix 1/1] " Kuppuswamy Sathyanarayanan
2021-05-18 19:55     ` Sean Christopherson
2021-05-18 22:12       ` Kuppuswamy, Sathyanarayanan
2021-05-18 22:31         ` Dave Hansen
2021-06-01  2:06           ` [RFC v2-fix-v2 " Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 31/32] x86/kvm: Use bounce buffers for TD guest Kuppuswamy Sathyanarayanan
2021-06-01  2:03   ` [RFC v2-fix-v1 1/1] " Kuppuswamy Sathyanarayanan
2021-04-26 18:01 ` [RFC v2 32/32] x86/tdx: ioapic: Add shared bit for IOAPIC base address Kuppuswamy Sathyanarayanan
2021-05-07 23:06   ` Dave Hansen
2021-05-24 23:29     ` [RFC v2-fix-v2 1/1] " Kuppuswamy Sathyanarayanan
2021-06-01  1:28       ` [RFC v2-fix-v3 " Kuppuswamy Sathyanarayanan
2021-06-01  6:12         ` kernel test robot
2021-05-03 23:21 ` [RFC v2 00/32] Add TDX Guest Support Kuppuswamy, Sathyanarayanan

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