lib: sbi: Fix behavior on platform without HART protection #410
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The commit 42139bb ("lib: sbi: Replace sbi_hart_pmp_xyz() and sbi_hart_map/unmap_addr()") changed logic by calling sbi_hart_protection_configure(). But when protection doesn't exist the function is returning SBI_EINVAL. But on systems without protection this is correct configuration that's why do not hang when system don't have any HART protection. Signed-off-by: Michal Simek <michal.simek@amd.com>
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We have mailing list based patch review so it would be great if you can send these patchs to OpenSBI mailing list. You need to join OpenSBI mailing list using following link Make sure you use "git send-email" to send the patches. Thanks for your contribution to OpenSBI project. |
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The commit 42139bb ("lib: sbi: Replace sbi_hart_pmp_xyz() and sbi_hart_map/unmap_addr()") changed logic by calling sbi_hart_protection_configure(). But when protection doesn't exist the function is returning SBI_EINVAL.
But on systems without protection this is correct configuration that's why do not hang when system don't have any HART protection.
I only tested cold boot but likely that issue is also related to warm case that's why I have fixed that too.
Another solution could be obviously also by fixing by returning 0 in case that no protection is available.