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lib: sbi: Introduce sbi_hart_pmp_unconfigure() function

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Currently, the unconfiguring PMP is implemented directly inside
switch_to_next_domain_context() whereas rest of the PMP programming
is done via functions implemented in sbi_hart.c.

Introduce a separate sbi_hart_pmp_unconfigure() function so that
all PMP programming is in one place.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Link: https://lore.kernel.org/r/20251209135235.423391-2-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Anup Patel
2025-12-09 19:22:31 +05:30
committed by Anup Patel
parent 4339e85794
commit 644a344226
3 changed files with 16 additions and 9 deletions
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include/sbi/sbi_hart.h
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@@ -150,6 +150,7 @@ unsigned int sbi_hart_pmp_addrbits(struct sbi_scratch *scratch);
unsigned int sbi_hart_mhpm_bits(struct sbi_scratch *scratch);
bool sbi_hart_smepmp_is_fw_region(unsigned int pmp_idx);
int sbi_hart_pmp_configure(struct sbi_scratch *scratch);
void sbi_hart_pmp_unconfigure(struct sbi_scratch *scratch);
int sbi_hart_map_saddr(unsigned long base, unsigned long size);
int sbi_hart_unmap_saddr(void);
int sbi_hart_priv_version(struct sbi_scratch *scratch);