Skip to content

riscv: pmp: Clarify IRQ stack PMP index for SMP #98097

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
wants to merge 1 commit into from
Closed

riscv: pmp: Clarify IRQ stack PMP index for SMP #98097

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 4 additions & 1 deletion arch/riscv/core/pmp.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -482,6 +482,9 @@ void z_riscv_pmp_init(void)
/* Write those entries to PMP regs. */
write_pmp_entries(0, index, true, pmp_addr, pmp_cfg, ARRAY_SIZE(pmp_addr));
#endif /* CONFIG_MULTITHREADING */
#ifdef CONFIG_SMP
unsigned int irq_stack_pmp_index = index;
#endif
#else
/* Write those entries to PMP regs. */
write_pmp_entries(0, index, true, pmp_addr, pmp_cfg, ARRAY_SIZE(pmp_addr));
Expand All @@ -494,7 +497,7 @@ void z_riscv_pmp_init(void)
* Make sure TOR entry sharing won't be attempted with it by
* remembering a bogus address for those entries.
*/
pmp_addr[index - 1] = -1L;
pmp_addr[irq_stack_pmp_index - 1] = -1L;
#endif

/* Make sure secondary CPUs produced the same values */
Expand Down