On 17.08.20 14:31, stranzjanm...@gmail.com wrote:
> I booted the Linux PC several times and then always created a new system
> configuration with "sudo jailhouse config create configs/x86/sysconfig.c".
>
> Interestingly, the configuration generated in this way is always
> slightly different!
> The following section is always affected:
>
> /* MemRegion: 100000000-23f1fffff : System RAM */
> {
> .phys_start = 0x100000000,
> .virt_start = 0x100000000,
> .size = 0x13f200000,
> .flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE |
> JAILHOUSE_MEM_EXECUTE | JAILHOUSE_MEM_DMA,
> },
> /* MemRegion: 23f200000-241ffffff : Kernel */
> {
> .phys_start = 0x23f200000,
> .virt_start = 0x23f200000,
> .size = 0x2e00000,
> .flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE |
> JAILHOUSE_MEM_EXECUTE | JAILHOUSE_MEM_DMA,
> },
> /* MemRegion: 242000000-41f37ffff : System RAM */
> {
> .phys_start = 0x242000000,
> .virt_start = 0x242000000,
> .size = 0x1dd380000,
> .flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE |
> JAILHOUSE_MEM_EXECUTE | JAILHOUSE_MEM_DMA,
> },
> What can be the reason?
> Shouldn't the generated configuration always be the same?
The kernel region is detect as separate RAM region by the config
generator, and the kernel might be loaded to different addresses each
time. You could fold all those three together, they are consecutive and
have the same flags.
Jan
--
Siemens AG, Corporate Technology, CT RDA IOT SES-DE
Corporate Competence Center Embedded Linux
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