* [PATCH] efi: don't issue error message when booted under xen
@ 2017-05-08 12:56 Juergen Gross
2017-05-15 12:52 ` Matt Fleming
0 siblings, 1 reply; 2+ messages in thread
From: Juergen Gross @ 2017-05-08 12:56 UTC (permalink / raw)
To: linux-kernel, linux-efi, x86
Cc: hpa, mingo, tglx, ard.biesheuvel, matt, 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@suse.com>
---
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
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH] efi: don't issue error message when booted under xen
2017-05-08 12:56 [PATCH] efi: don't issue error message when booted under xen Juergen Gross
@ 2017-05-15 12:52 ` Matt Fleming
0 siblings, 0 replies; 2+ messages in thread
From: Matt Fleming @ 2017-05-15 12:52 UTC (permalink / raw)
To: Juergen Gross
Cc: linux-kernel, linux-efi, x86, hpa, mingo, tglx, ard.biesheuvel
On Mon, 08 May, at 02:56:33PM, Juergen Gross wrote:
> 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@suse.com>
> ---
> arch/x86/platform/efi/quirks.c | 3 +++
> 1 file changed, 3 insertions(+)
Thanks. I've applied this for the urgent branch because it's trivial
and we've had issues before where these kinds of error messages mess
up an otherwise clean boot screen.
^ permalink raw reply [flat|nested] 2+ messages in thread
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