* [PATCH] efi: don't issue error message when booted under xen
@ 2017-05-08 12:56 Juergen Gross
[not found] ` <20170508125633.1762-1-jgross-IBi9RG/b67k@public.gmane.org>
0 siblings, 1 reply; 2+ messages in thread
From: Juergen Gross @ 2017-05-08 12:56 UTC (permalink / raw)
To: linux-kernel-u79uwXL29TY76Z2rM5mHXA,
linux-efi-u79uwXL29TY76Z2rM5mHXA, x86-DgEjT+Ai2ygdnm+yROfE0A
Cc: hpa-YMNOUZJC4hwAvxtiuMwx3w, mingo-H+wXaHxf7aLQT0dZR+AlfA,
tglx-hfZtesqFncYOwBW4kG4KsQ,
ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A,
matt-mF/unelCI9GS6iBeEJttW/XRex20P6io, Juergen Gross
When booted as Xen dom0 there won't be an EFI memmap allocated. Avoid
issuing an error message in this case:
[ 0.144079] efi: Failed to allocate new EFI memmap
Signed-off-by: Juergen Gross <jgross-IBi9RG/b67k@public.gmane.org>
---
arch/x86/platform/efi/quirks.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c
index 26615991d69c..e0cf95a83f3f 100644
--- a/arch/x86/platform/efi/quirks.c
+++ b/arch/x86/platform/efi/quirks.c
@@ -360,6 +360,9 @@ void __init efi_free_boot_services(void)
free_bootmem_late(start, size);
}
+ if (!num_entries)
+ return;
+
new_size = efi.memmap.desc_size * num_entries;
new_phys = efi_memmap_alloc(num_entries);
if (!new_phys) {
--
2.12.0
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2017-05-08 12:56 [PATCH] efi: don't issue error message when booted under xen Juergen Gross
[not found] ` <20170508125633.1762-1-jgross-IBi9RG/b67k@public.gmane.org>
2017-05-15 12:52 ` Matt Fleming
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