[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <184456a7-fd03-c3c6-3d4f-4f770e2e8b31@intel.com>
Date: Wed, 15 Jun 2022 15:36:02 -0700
From: Dave Hansen <dave.hansen@...el.com>
To: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Cc: tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
luto@...nel.org, peterz@...radead.org, ak@...ux.intel.com,
dan.j.williams@...el.com, david@...hat.com, hpa@...or.com,
linux-kernel@...r.kernel.org,
sathyanarayanan.kuppuswamy@...ux.intel.com, seanjc@...gle.com,
thomas.lendacky@....com, x86@...nel.org
Subject: Re: [PATCHv4 3/3] x86/tdx: Handle load_unaligned_zeropad() page-cross
to a shared page
On 6/15/22 15:32, Kirill A. Shutemov wrote:
>>> /*
>>> * Reject EPT violation #VEs that split pages.
>>> *
>>> * MMIO accesses are supposed to be naturally aligned and therefore
>>> * never cross page boundaries. Seeing split page accesses indicates
>>> * a bug or a load_unaligned_zeropad() that stepped into an MMIO page.
>>> *
>>> * load_unaligned_zeropad() will recover using exception fixups.
>>> */
> Looks good, thanks.
I've got that snippet and a few other things staged here:
> https://git.kernel.org/pub/scm/linux/kernel/git/daveh/devel.git/log/?h=testme
Could you take a quick look through before I push them somewhere for real?
Powered by blists - more mailing lists