Like on all other architectures, check for the availability of h-extensions in the driver to early prevent damage, if h-extensions are not available.
Signed-off-by: Ralf Ramsauer <[email protected]> --- driver/main.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/driver/main.c b/driver/main.c index d13afeb6..ef1c2a90 100644 --- a/driver/main.c +++ b/driver/main.c @@ -444,6 +444,13 @@ static int jailhouse_cmd_enable(struct jailhouse_system __user *arg) } } #endif +#ifdef CONFIG_RISCV + if (!riscv_isa_extension_available(NULL, h)) { + pr_err("jailhouse: hypervisor extension not available\n"); + err = -ENODEV; + goto error_put_module; + } +#endif /* Load hypervisor image */ err = request_firmware(&hypervisor, fw_name, jailhouse_dev); -- 2.36.1 -- You received this message because you are subscribed to the Google Groups "Jailhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jailhouse-dev/20220627132905.4338-2-ralf.ramsauer%40oth-regensburg.de.
