| From | Thomas Gleixner <> | Subject | Re: [PATCHv6 23/30] x86/boot: Avoid #VE during boot for TDX platforms | Date | Thu, 17 Mar 2022 13:48:01 +0100 |
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On Wed, Mar 16 2022 at 05:08, Kirill A. Shutemov wrote: > This theoretically makes the guest boot more fragile. If, for instance, > EFER was set up incorrectly and a WRMSR was performed, it will trigger > early exception panic or a triple fault, if it's before early > exceptions are set up. However, this is likely to trip up the guest > BIOS long before control reaches the kernel. In any case, these kinds > of problems are unlikely to occur in production environments, and > developers have good debug tools to fix them quickly. > > Change the common boot code to work on TDX and non-TDX systems. > This should have no functional effect on non-TDX systems. > > Signed-off-by: Sean Christopherson <seanjc@google.com> > Reviewed-by: Andi Kleen <ak@linux.intel.com> > Reviewed-by: Dan Williams <dan.j.williams@intel.com> > Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
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