Dear all,
a colleague of mine is creating a simple demo where an inmate
communicates a few data (u64) to the root cell on a x86-64
architecture.
We have reserved some memory through memmap and added a ROOTSHARED
memory region to both sysconfig.c and the cell. However, Jailhouse
prints the following error message as soon as the cell tries to write
onto such region.
The same configuration worked properly on ARM64.
Have we missed/misconfigured something ?
Note that we tried either using a single memmap to reserve both
hypervisor and shared memories, or using two separate memmaps, but we
get the same error.
Many thanks and best regards,
Claudio
CPU 3 received SIPI, vector 100
Started cell "pwm-demo"
Calibrated TSC frequency: 2294682.398 kHz
DEBUG Core ID RAW:<3>
DEBUG Virtual Core ID:<0>
FATAL: Unhandled VM-Exit, reason 2
qualification 0
vectoring info: 0 interrupt info: 0
RIP: 0x00000000000f0df2 RSP: 0x00000000000dffb0 FLAGS: 10202
RAX: 0x000000003f200000 RBX: 0x00000000000f1f9c RCX: 0x0000000000000802
RDX: 0x00000000000e03a0 RSI: 0x0000000000000002 RDI: 0x00000000000e03a0
CS: 10 BASE: 0x0000000000000000 AR-BYTES: a09b EFER.LMA 1
CR0: 0x0000000080010031 CR3: 0x00000000000f5000 CR4: 0x0000000000002020
EFER: 0x0000000000000500
Parking CPU 3 (Cell: "pwm-demo")
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