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machine: allow early use of machine_require_guest_memfd

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Ask the ConfidentialGuestSupport object whether to use guest_memfd
for KVM-backend private memory.  This bool can be set in instance_init
(or user_complete) so that it is available when the machine is created.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2024-05-31 13:29:53 +02:00
parent aa274c33c3
commit dc0d28ca46
3 changed files with 6 additions and 2 deletions
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5
include/exec/confidential-guest-support.h
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@ -31,6 +31,11 @@ OBJECT_DECLARE_TYPE(ConfidentialGuestSupport,
struct ConfidentialGuestSupport {
Object parent;
/*
* True if the machine should use guest_memfd for RAM.
*/
bool require_guest_memfd;
/*
* ready: flag set by CGS initialization code once it's ready to
* start executing instructions in a potentially-secure