Re: [PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: 2021-10-12 21:00:09
Also in:
linux-alpha, linux-arch, linux-doc, linux-mips, linux-pci, lkml, sparclinux
On Tue, Oct 12, 2021 at 10:55:20AM -0700, Andi Kleen wrote:
quoted
I mean ... it's already wide spread.I meant wide spread usage with confidential guests.quoted
If we support it with TDX it will be used with TDX.It has some security trade offs. The main reason to use TDX is security. Also when people take the VT-d tradeoffs they might be ok with the BIOS trade offs too. -Andi
Interesting. VT-d tradeoffs ... what are they? Allowing hypervisor to write into BIOS looks like it will trivially lead to code execution, won't it? -- MST _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization