The function p2m_restore_state could be called with an idle vCPU in
arguments (when called by construct_dom0). However, we will never return
to EL0/EL1 in this case, so it is not necessary to restore the p2m
registers.
Signed-off-by: Julien Grall <julien.gr...@arm.com>
---
xen/arch/arm/p2m.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/xen/arch/arm/p2m.c b/xen/arch/arm/p2m.c
index c52081a..d1b6009 100644
--- a/xen/arch/arm/p2m.c
+++ b/xen/arch/arm/p2m.c
@@ -127,6 +127,9 @@ void p2m_restore_state(struct vcpu *n)
{
register_t hcr;
+ if ( is_idle_vcpu(n) )
+ return;
+
hcr = READ_SYSREG(HCR_EL2);
WRITE_SYSREG(hcr & ~HCR_VM, HCR_EL2);
isb();
--
1.9.1
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