On 06/14/2010 11:49 AM, Nadav Har'El wrote:
On Mon, Jun 14, 2010, Avi Kivity wrote about "Re: [PATCH 5/24] Introduce vmcs12: a VMCS structure for L1":
On 06/13/2010 03:25 PM, Nadav Har'El wrote:
+#define VMCS12_REVISION 0x11e57ed0
Where did this number come from? It's not from real hardware, yes?
Basically, we are presenting emulated VMX for the L1 guest, complete with
its own VMCS structure. This structure needs to have some VMCS revision id,
which should be an arbitrary number that we invent - it is not related to any
revision id that any real hardware uses. If you look closely, you can see that
the number I used is leetspeak for "Nested0" ;-)
Will have to brush up on my leetspeak, I see.
As you can see in the following patches, MSR_IA32_VMX_BASIC will return this
arbitrary VMCS revision id, and and VMPTRLD will verify that the VMCS region
that L1 is trying to load contains this revision id.
Ok good, I was worried this was a real hardware ID.
--
error compiling committee.c: too many arguments to function
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