Date: Thu, 04 Jun 2026 14:30:01 +0000 From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 42e66606ca50 - stable/15 - amd64: do not switch back and restore UEFI IDT in wrmsr_early_safe_end() Message-ID: <6a218be9.394d2.2f21921b@gitrepo.freebsd.org>
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The branch stable/15 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=42e66606ca505b39c63c43a0860152f0e74415d2 commit 42e66606ca505b39c63c43a0860152f0e74415d2 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2026-05-29 07:32:41 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2026-06-04 14:29:19 +0000 amd64: do not switch back and restore UEFI IDT in wrmsr_early_safe_end() (cherry picked from commit 606d3cb1be5fd594c1f51addd063e7c13e16bdbc) --- sys/amd64/amd64/machdep.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/sys/amd64/amd64/machdep.c b/sys/amd64/amd64/machdep.c index 7b652d241250..64bffe2777ce 100644 --- a/sys/amd64/amd64/machdep.c +++ b/sys/amd64/amd64/machdep.c @@ -1829,7 +1829,6 @@ clear_pcb_flags(struct pcb *pcb, const u_int flags) } extern const char wrmsr_early_safe_gp_handler[]; -static struct region_descriptor wrmsr_early_safe_orig_efi_idt; void wrmsr_early_safe_start(void) @@ -1838,7 +1837,6 @@ wrmsr_early_safe_start(void) struct gate_descriptor *gpf_descr; int i; - sidt(&wrmsr_early_safe_orig_efi_idt); efi_idt.rd_limit = 32 * sizeof(idt0[0]); efi_idt.rd_base = (uintptr_t)idt0; lidt(&efi_idt); @@ -1859,12 +1857,6 @@ wrmsr_early_safe_start(void) void wrmsr_early_safe_end(void) { - int i; - - lidt(&wrmsr_early_safe_orig_efi_idt); - - for (i = 0; i < 32; i++) - memset_early(&idt0[i], 0, sizeof(idt0[0])); } inthome | help
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