Messages in this thread | | | From | "Edgecombe, Rick P" <> | Subject | Re: [PATCH 1/2] x86/kexec: Preserve CR4.MCE during kexec | Date | Thu, 16 Feb 2023 01:49:39 +0000 |
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On Tue, 2023-02-14 at 02:48 +0300, Kirill A. Shutemov wrote: > TDX guests are not allowed to clear CR4.MCE. Attempt to clear it > leads > to #VE. > > Preserve the flag during kexec. > > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
I wonder whats going on with the pre-existing switching between eax and rax in this code for the cr0 and cr4 manipulations. Do you know what the reason is?
Also, for a simple non-tdx kexec regression test: Tested-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
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