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authorIan Moffett <ian@osmora.org>2024-05-24 13:28:20 -0400
committerIan Moffett <ian@osmora.org>2024-05-24 13:28:20 -0400
commit157edace4ad3f3703e858e4fdea3d77a0b1832e0 (patch)
tree2fd604752064bcdedf0e7910a979046f2551717f
parent3f9b766a3e19eb9dde9779adc1ea91474c3efbb5 (diff)
kernel/amd64: pmap: Fix check for listed CPUs
Only perform a TLB shootdown if the number of cores listed is greater than one. Signed-off-by: Ian Moffett <ian@osmora.org>
-rw-r--r--sys/arch/amd64/amd64/pmap.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/arch/amd64/amd64/pmap.c b/sys/arch/amd64/amd64/pmap.c
index 468cca4..6eca948 100644
--- a/sys/arch/amd64/amd64/pmap.c
+++ b/sys/arch/amd64/amd64/pmap.c
@@ -206,12 +206,12 @@ pmap_modify_tbl(struct vm_ctx *ctx, struct vas vas, vaddr_t va, size_t val)
tbl[pmap_get_level_index(1, va)] = val;
/*
- * Do TLB shootdown if CPUs are listed.
+ * Do TLB shootdown if multiple CPUs are listed.
*
* XXX: Some might not be listed during early
* startup.
*/
- if (cpu_get(0) != NULL) {
+ if (cpu_count() > 1) {
tlb_shootdown(va);
}