From: "Huang, Kai" <kai.huang@intel.com>
To: Borislav Petkov <bp@alien8.de>
Cc: "dyoung@redhat.com" <dyoung@redhat.com>,
"Gao, Chao" <chao.gao@intel.com>,
"luto@kernel.org" <luto@kernel.org>,
"Hansen, Dave" <dave.hansen@intel.com>,
"x86@kernel.org" <x86@kernel.org>,
"bhe@redhat.com" <bhe@redhat.com>,
"peterz@infradead.org" <peterz@infradead.org>,
"hpa@zytor.com" <hpa@zytor.com>,
"mingo@redhat.com" <mingo@redhat.com>,
"thomas.lendacky@amd.com" <thomas.lendacky@amd.com>,
"kirill.shutemov@linux.intel.com"
<kirill.shutemov@linux.intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"nik.borisov@suse.com" <nik.borisov@suse.com>,
"pbonzini@redhat.com" <pbonzini@redhat.com>
Subject: Re: [PATCH 1/4] x86/coco: Add a new CC attribute to unify cache flush during kexec
Date: Thu, 29 Feb 2024 11:21:36 +1300 [thread overview]
Message-ID: <1511b773-5f79-4882-9566-e0db8d8f53b3@intel.com> (raw)
In-Reply-To: <20240228110207.GCZd8Sr8mXHA2KTiLz@fat_crate.local>
On 29/02/2024 12:02 am, Borislav Petkov wrote:
> On Wed, Feb 28, 2024 at 09:21:00AM +0000, Huang, Kai wrote:
>> Based on this I'll change to do unconditional WBINVD during kexec() for in
>> stop_this_cpu() and relocate_kernel(). Please let me know if you have any
>> comments.
>
> Yes, pls make sure to summarize in the commit message what this thread
> figured out. But basically, we want to try the simple approach and
> WBINVD unconditionally on the CPU stopping path so that caches are clean
> and there's no potential issues...
>
Yes will do. Thanks for the feedback.
next prev parent reply other threads:[~2024-02-28 22:21 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-31 11:31 [PATCH 0/4] TDX host: kexec() support Huang, Kai
2024-01-31 11:31 ` [PATCH 1/4] x86/coco: Add a new CC attribute to unify cache flush during kexec Huang, Kai
2024-02-19 16:16 ` Borislav Petkov
2024-02-19 19:45 ` Tom Lendacky
2024-02-19 20:32 ` Borislav Petkov
2024-02-19 22:09 ` Tom Lendacky
2024-02-20 2:57 ` Huang, Kai
2024-02-20 14:40 ` Tom Lendacky
2024-02-20 14:28 ` Borislav Petkov
2024-02-20 14:47 ` Tom Lendacky
2024-02-20 20:07 ` Huang, Kai
2024-02-20 22:30 ` Tom Lendacky
2024-02-21 1:38 ` Huang, Kai
2024-02-21 9:28 ` Borislav Petkov
2024-02-22 11:49 ` Huang, Kai
2024-02-23 3:13 ` Dave Young
2024-02-23 10:41 ` Dave Young
2024-02-28 2:54 ` Dave Young
2024-02-28 9:21 ` Huang, Kai
2024-02-28 11:02 ` Borislav Petkov
2024-02-28 22:21 ` Huang, Kai [this message]
2024-02-28 10:44 ` Borislav Petkov
2024-02-20 3:12 ` Huang, Kai
2024-01-31 11:31 ` [PATCH 2/4] x86/virt/tdx: Advertise the CC_ATTR_HOST_MEM_INCOHERENT for TDX host Huang, Kai
2024-01-31 17:11 ` Dave Hansen
2024-02-01 14:42 ` Huang, Kai
2024-01-31 11:31 ` [PATCH 3/4] x86/kexec(): Reset TDX private memory on platforms with TDX erratum Huang, Kai
2024-01-31 21:21 ` Dave Hansen
2024-01-31 22:03 ` Kirill A. Shutemov
2024-02-01 14:22 ` Huang, Kai
2024-02-01 14:39 ` Kirill A. Shutemov
2024-02-01 14:47 ` Huang, Kai
2024-02-01 16:57 ` Dave Hansen
2024-02-05 6:49 ` Huang, Kai
2024-02-01 14:35 ` Huang, Kai
2024-02-02 0:54 ` Edgecombe, Rick P
2024-02-05 6:44 ` Huang, Kai
2024-01-31 11:31 ` [PATCH 4/4] x86/virt/tdx: Remove the !KEXEC_CORE dependency Huang, Kai
2024-02-01 18:28 ` [PATCH 0/4] TDX host: kexec() support Tom Lendacky
2024-02-05 6:50 ` Huang, Kai
2024-02-06 18:56 ` Kalra, Ashish
2024-02-07 1:43 ` Huang, Kai
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