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[RFC PATCH 07/16] target/arm/kvm: Select RME VM type for the scratch VM


From: Jean-Philippe Brucker
Subject: [RFC PATCH 07/16] target/arm/kvm: Select RME VM type for the scratch VM
Date: Fri, 27 Jan 2023 15:07:20 +0000

Although the VM type does not affect values probed from the scratch vCPU
at the moment, it could later. Ensure we specify the right type when
creating the temporary VM.

Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
---
Does the PA size need changing as well?
---
 target/arm/kvm.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/target/arm/kvm.c b/target/arm/kvm.c
index fcddead4fe..d8655d9041 100644
--- a/target/arm/kvm.c
+++ b/target/arm/kvm.c
@@ -70,6 +70,7 @@ bool kvm_arm_create_scratch_host_vcpu(const uint32_t 
*cpus_to_try,
 {
     int ret = 0, kvmfd = -1, vmfd = -1, cpufd = -1;
     int max_vm_pa_size;
+    int vm_type;
 
     kvmfd = qemu_open_old("/dev/kvm", O_RDWR);
     if (kvmfd < 0) {
@@ -79,8 +80,10 @@ bool kvm_arm_create_scratch_host_vcpu(const uint32_t 
*cpus_to_try,
     if (max_vm_pa_size < 0) {
         max_vm_pa_size = 0;
     }
+
+    vm_type = kvm_arm_rme_vm_type(MACHINE(qdev_get_machine()));
     do {
-        vmfd = ioctl(kvmfd, KVM_CREATE_VM, max_vm_pa_size);
+        vmfd = ioctl(kvmfd, KVM_CREATE_VM, vm_type | max_vm_pa_size);
     } while (vmfd == -1 && errno == EINTR);
     if (vmfd < 0) {
         goto err;
-- 
2.39.0




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