From: Jintack Lim <[email protected]> Now that the psci call is done by the smc instruction when nested virtualization is enabled, it is clear that all hvc instruction from the VM (including from the virtual EL2) are supposed to handled in the virtual EL2.
Signed-off-by: Jintack Lim <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> --- arch/arm64/kvm/handle_exit.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm64/kvm/handle_exit.c b/arch/arm64/kvm/handle_exit.c index 516aead3c2a9..6c0ac52b34cc 100644 --- a/arch/arm64/kvm/handle_exit.c +++ b/arch/arm64/kvm/handle_exit.c @@ -30,6 +30,7 @@ #include <asm/kvm_coproc.h> #include <asm/kvm_emulate.h> #include <asm/kvm_mmu.h> +#include <asm/kvm_nested.h> #include <asm/debug-monitors.h> #include <asm/traps.h> @@ -52,6 +53,12 @@ static int handle_hvc(struct kvm_vcpu *vcpu, struct kvm_run *run) kvm_vcpu_hvc_get_imm(vcpu)); vcpu->stat.hvc_exit_stat++; + /* Forward hvc instructions to the virtual EL2 if the guest has EL2. */ + if (nested_virt_in_use(vcpu)) { + kvm_inject_nested_sync(vcpu, kvm_vcpu_get_hsr(vcpu)); + return 1; + } + ret = kvm_hvc_call_handler(vcpu); if (ret < 0) { vcpu_set_reg(vcpu, 0, ~0UL); -- 2.20.1 _______________________________________________ kvmarm mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
