Some ID registers have a different value for a Realm VM, for example
ID_AA64DFR0_EL1 contains the number of breakpoints/watchpoints
implemented by RMM instead of the hardware.
Even though RMM is in charge of setting up most Realm registers, KVM
still provides GET_ONE_REG interface on a Realm VM to probe the VM's
capabilities.
Signed-off-by: Jean-Philippe Brucker <jean-phili...@linaro.org>
---
target/arm/kvm.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/target/arm/kvm.c b/target/arm/kvm.c
index a0de2efc41..870f51bf02 100644
--- a/target/arm/kvm.c
+++ b/target/arm/kvm.c
@@ -106,6 +106,7 @@ 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) {
@@ -115,8 +116,9 @@ 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, max_vm_pa_size | vm_type);
} while (vmfd == -1 && errno == EINTR);
if (vmfd < 0) {
goto err;
--
2.47.0
