diff mbox series

[v2,20/22] target/arm/kvm-rme: Enable guest memfd

Message ID 20240419155709.318866-22-jean-philippe@linaro.org
State New
Headers show
Series arm: Run CCA VMs with KVM | expand

Commit Message

Jean-Philippe Brucker April 19, 2024, 3:57 p.m. UTC 
Request that RAM block uses the KVM guest memfd call to allocate guest
memory. With RME, guest memory is not accessible by the host, and using
guest memfd ensures that the host kernel is aware of this and doesn't
attempt to access guest pages.

Done in a separate patch because ms->require_guest_memfd is not yet
merged.

Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
---
v1->v2: new
---
 target/arm/kvm-rme.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/target/arm/kvm-rme.c b/target/arm/kvm-rme.c
index 8f39e54aaa..71cc1d4147 100644
--- a/target/arm/kvm-rme.c
+++ b/target/arm/kvm-rme.c
@@ -263,6 +263,7 @@  int kvm_arm_rme_init(MachineState *ms)
     rme_guest->rom_load_notifier.notify = rme_rom_load_notify;
     rom_add_load_notifier(&rme_guest->rom_load_notifier);
 
+    ms->require_guest_memfd = true;
     cgs->ready = true;
     return 0;
 }