Date: Thu, 16 Jul 2026 15:33:14 +0000 From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: a2f50c4b32d1 - main - amd64 efirt: register all runtime regions as fictitious Message-ID: <6a58f9ba.1def4.2967a3d7@gitrepo.freebsd.org>
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The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=a2f50c4b32d1c126cf2309dab61d27d6329908f8 commit a2f50c4b32d1c126cf2309dab61d27d6329908f8 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2026-07-16 06:49:21 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2026-07-16 15:32:50 +0000 amd64 efirt: register all runtime regions as fictitious This is needed for VM_PHYS_TO_PAGE() to work, which is needed for pmap_map_io_transient() to work, which is needed for uiomove_fromphys() to work. PR: 296348 Reported and tested by: Anton Saietskii <vsasjason@gmail.com> Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D58274 --- sys/amd64/amd64/efirt_machdep.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sys/amd64/amd64/efirt_machdep.c b/sys/amd64/amd64/efirt_machdep.c index f3e3db9cba9c..f5be20e99b40 100644 --- a/sys/amd64/amd64/efirt_machdep.c +++ b/sys/amd64/amd64/efirt_machdep.c @@ -54,6 +54,7 @@ #include <vm/vm_object.h> #include <vm/vm_page.h> #include <vm/vm_pager.h> +#include <vm/vm_phys.h> #include <vm/vm_radix.h> /* The EFI regions we're allowed to map. */ @@ -253,6 +254,8 @@ efi_create_1t1_map(struct efi_md *map, int ndesc, int descsz) "attributes unsupported\n", i); mode = VM_MEMATTR_UNCACHEABLE; } + (void)vm_phys_fictitious_reg_range(p->md_phys, p->md_phys + + p->md_pages * EFI_PAGE_SIZE, mode); bits = pmap_cache_bits(kernel_pmap, mode, false) | X86_PG_RW | X86_PG_V; VM_OBJECT_WLOCK(obj_1t1_pt);home | help
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