From f8bb4e99a64aa9df31465ee817fc5623a2822b63 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Thu, 29 Feb 2024 21:58:43 -0500 Subject: kernel/amd64: pmap: Add user pte flag Signed-off-by: Ian Moffett --- sys/arch/amd64/amd64/pmap.c | 2 ++ sys/include/vm/pmap.h | 1 + 2 files changed, 3 insertions(+) (limited to 'sys') diff --git a/sys/arch/amd64/amd64/pmap.c b/sys/arch/amd64/amd64/pmap.c index e898e74..7b8609a 100644 --- a/sys/arch/amd64/amd64/pmap.c +++ b/sys/arch/amd64/amd64/pmap.c @@ -64,6 +64,8 @@ pmap_prot_to_pte(vm_prot_t prot) pte_flags |= PTE_RW; if (__TEST(prot, PROT_EXEC)) pte_flags &= ~(PTE_NX); + if (__TEST(prot, PROT_USER)) + pte_flags |= PTE_US; return pte_flags; } diff --git a/sys/include/vm/pmap.h b/sys/include/vm/pmap.h index 516c2ea..85c6753 100644 --- a/sys/include/vm/pmap.h +++ b/sys/include/vm/pmap.h @@ -52,6 +52,7 @@ /* prot flags for mappings */ #define PROT_WRITE __BIT(0) /* Writable */ #define PROT_EXEC __BIT(1) /* Executable */ +#define PROT_USER __BIT(2) /* User accessible */ #define is_vas_valid(vas) (vas.top_level != 0) -- cgit v1.2.3