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charset="utf-8" From: Grygorii Strashko The vcpu ctx initialization (arch_set_info_guest()) is depends on proper domain type (32/64bit) configuration, so check that vcpus are not initialized when toolstack issues XEN_DOMCTL_set_address_size hypercall. Signed-off-by: Grygorii Strashko --- xen/arch/arm/arm64/domctl.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/xen/arch/arm/arm64/domctl.c b/xen/arch/arm/arm64/domctl.c index 8720d126c97d..82eff26fb0d1 100644 --- a/xen/arch/arm/arm64/domctl.c +++ b/xen/arch/arm/arm64/domctl.c @@ -13,6 +13,19 @@ #include #include =20 +static bool vcpus_check_initialised(struct domain *d) +{ + struct vcpu *v; + + for_each_vcpu(d, v) + { + if ( v->is_initialised ) + return true; + } + + return false; +} + static long switch_mode(struct domain *d, enum domain_type type) { struct vcpu *v; @@ -21,6 +34,8 @@ static long switch_mode(struct domain *d, enum domain_typ= e type) return -EINVAL; if ( domain_tot_pages(d) !=3D 0 ) return -EBUSY; + if ( vcpus_check_initialised(d) ) + return -EBUSY; if ( d->arch.type =3D=3D type ) return 0; =20 --=20 2.34.1