[siemens/jailhouse] 30e82a: x86: Wait on init_signaled to arrive

Branch: refs/heads/next Home: https://github.com/siemens/jailhouse Commit: 30e82a4572bc96279f3668065bd4e3c13b876508 https://github.com/siemens/jailhouse/commit/30e82a4572bc96279f3668065bd4e3c13b876508 Author: Jan Kiszka Date: 2018-08-12 (Sun, 12 Aug 2018) Changed paths:

[PATCH v2 4/4] x86: Wait on init_signaled to arrive

From: Jan Kiszka This particularly ensures that Linux guests do not consider CPUs dead because of the potential high latency between submitting INIT and getting the target CPU into wait_for_sipi state. On real hardware, the Delivery Status bit which is polled by Linux synchronizes the sender.

RE: ARM64 unhandled trap (exception class 0x17)

> > The zynqmp_r5_remoteproc driver apparently is doing the following (I am not > an expert on the arm64 assembly): > > ENTRY(__arm_smccc_hvc) > SMCCC hvc > ENDPROC(__arm_smccc_hvc) Have you tried __arm_smccc_smc? Regards, Peng > > .macro SMCCC instr > .cfi_startproc >