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From: Fonyuy-Asheri Caleb <fonyuy-asheri.caleb@inria.fr>
To: xen-devel <xen-devel@lists.xenproject.org>
Cc: Jan Beulich <jbeulich@suse.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>
Subject: Help With Identifying CPUID faulting logic in Xen code
Date: Fri, 3 Jan 2025 15:25:46 +0100 (CET)	[thread overview]
Message-ID: <944938302.6053932.1735914346495.JavaMail.zimbra@inria.fr> (raw)

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Hello, 

I am interested in finding understanding how xen handles CPUID faulting and 
VM exits in general. Please can someone indicate to me the concerned files? 

I want to know how xen detects the execution of the CPUID instruction and 
ensures a guest only gets the features defined in cpuid-autogen.h file 
depending on the guest type. 

I started looking at the file xen/arch/x86/cpuid.c but don't really know which other 
files to check next. 

Thanks 

Caleb 

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             reply	other threads:[~2025-01-03 14:26 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-03 14:25 Fonyuy-Asheri Caleb [this message]
2025-01-03 14:35 ` Help With Identifying CPUID faulting logic in Xen code Andrew Cooper
2025-01-03 14:54   ` Fonyuy-Asheri Caleb

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