linux/virt
Hu Huajun 02d50cdaff KVM: ARM64: fix phy counter access failure in guest.
When reading the cntpct_el0 in guest with VHE (Virtual Host Extension)
enabled in host, the "Unsupported guest sys_reg access" error reported.
The reason is cnthctl_el2.EL1PCTEN is not enabled, which is expected
to be done in kvm_timer_init_vhe(). The problem is kvm_timer_init_vhe
is called by cpu_init_hyp_mode, and which is called when VHE is disabled.
This patch remove the incorrect call to kvm_timer_init_vhe() from
cpu_init_hyp_mode(), and calls kvm_timer_init_vhe() to enable
cnthctl_el2.EL1PCTEN in cpu_hyp_reinit().

Fixes: 488f94d721 ("KVM: arm64: Access CNTHCTL_EL2 bit fields correctly on VHE systems")
Cc: stable@vger.kernel.org
Signed-off-by: Hu Huajun <huhuajun@huawei.com>
Reviewed-by: Christoffer Dall <cdall@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <cdall@linaro.org>
2017-06-15 09:45:12 +01:00
..
kvm KVM: ARM64: fix phy counter access failure in guest. 2017-06-15 09:45:12 +01:00
lib KVM: eventfd: fix NULL deref irqbypass consumer 2017-01-12 14:42:34 +01:00
Makefile virt: Add virt directory to the top Makefile 2015-10-01 15:06:44 +02:00