From bbb00b1719f11c58efd5375aebc30ccd13bf0906 Mon Sep 17 00:00:00 2001 From: Konstantin Belousov Date: Mon, 16 Sep 2024 19:36:31 +0300 Subject: [PATCH] pmap_bootstrap_la57(): reload IDT after the trip through protected mode. This is required by AMD64 ARM. Sponsored by: Advanced Micro Devices (AMD) Sponsored by: The FreeBSD Foundation MFC after: 1 week --- sys/amd64/amd64/pmap.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c index eadcb726b6c..f7e3ef4233e 100644 --- a/sys/amd64/amd64/pmap.c +++ b/sys/amd64/amd64/pmap.c @@ -2263,6 +2263,7 @@ pmap_bootstrap_la57(void *arg __unused) ssdtosyssd(&gdt_segs[GPROC0_SEL], (struct system_segment_descriptor *)&__pcpu[0].pc_gdt[GPROC0_SEL]); ltr(GSEL(GPROC0_SEL, SEL_KPL)); + lidt(&r_idt); if (bootverbose) printf("LA57 trampoline returned, CR4 %#lx\n", rcr4());