linux/arch/arm64
James Morse e8ec032b18 KVM: arm64: Restore host physical timer access on hyp_panic()
When KVM panics, it hurridly restores the host context and parachutes
into the host's panic() code. At some point panic() touches the physical
timer/counter. Unless we are an arm64 system with VHE, this traps back
to EL2. If we're lucky, we panic again.

Add a __timer_save_state() call to KVMs hyp_panic() path, this saves the
guest registers and disables the traps for the host.

Fixes: 53fd5b6487 ("arm64: KVM: Add panic handling")
Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Christoffer Dall <cdall@linaro.org>
Signed-off-by: Christoffer Dall <cdall@linaro.org>
2017-05-16 09:54:25 +02:00
..
boot TEE driver infrastructure and OP-TEE drivers 2017-05-10 11:20:09 -07:00
configs ARM: SoC 64-bit changes 2017-05-09 10:04:17 -07:00
crypto Revert "crypto: arm64/sha - Add constant operand modifier to ASM_EXPORT" 2017-04-24 16:09:50 +08:00
include arm64 2nd set of updates for 4.12: 2017-05-11 11:27:54 -07:00
kernel arm64 2nd set of updates for 4.12: 2017-05-11 11:27:54 -07:00
kvm KVM: arm64: Restore host physical timer access on hyp_panic() 2017-05-16 09:54:25 +02:00
lib arm64: switch to RAW_COPY_USER 2017-03-28 18:23:24 -04:00
mm IOMMU Updates for Linux v4.12 2017-05-09 15:15:47 -07:00
net arm64: use set_memory.h header 2017-05-08 17:15:13 -07:00
xen xen/privcmd: Add IOCTL_PRIVCMD_DM_OP 2017-02-14 15:13:43 -05:00
Kconfig arm64 updates for 4.12: 2017-05-05 12:11:37 -07:00
Kconfig.debug arm64: relocation testing module 2017-04-04 17:03:32 +01:00
Kconfig.platforms arm64: sunxi: always enable reset controller 2017-04-27 21:58:21 +02:00
Makefile Kbuild misc updates for 4.12 2017-05-10 20:41:43 -07:00