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* [PATCH] x86/EFI: fix runtime call status for compat mode Dom0
@ 2013-04-26 13:35 Jan Beulich
  2013-04-26 14:16 ` Keir Fraser
  0 siblings, 1 reply; 2+ messages in thread
From: Jan Beulich @ 2013-04-26 13:35 UTC (permalink / raw)
  To: xen-devel

[-- Attachment #1: Type: text/plain, Size: 496 bytes --]

The top two bits (indicating error/warning classification) need to
remain the top two bits.

Signed-off-by: Jan Beulich <jbeulich@suse.com>

--- a/xen/arch/x86/efi/runtime.c
+++ b/xen/arch/x86/efi/runtime.c
@@ -531,7 +531,7 @@ int efi_runtime_call(struct xenpf_efi_ru
 #ifndef COMPAT
     op->status = status;
 #else
-    op->status = (status & 0x3fffffff) | (status >> 62);
+    op->status = (status & 0x3fffffff) | ((status >> 32) & 0xc0000000);
 #endif
 
     return rc;




[-- Attachment #2: x86-EFI-runtime-call-compat-status.patch --]
[-- Type: text/plain, Size: 547 bytes --]

x86/EFI: fix runtime call status for compat mode Dom0

The top two bits (indicating error/warning classification) need to
remain the top two bits.

Signed-off-by: Jan Beulich <jbeulich@suse.com>

--- a/xen/arch/x86/efi/runtime.c
+++ b/xen/arch/x86/efi/runtime.c
@@ -531,7 +531,7 @@ int efi_runtime_call(struct xenpf_efi_ru
 #ifndef COMPAT
     op->status = status;
 #else
-    op->status = (status & 0x3fffffff) | (status >> 62);
+    op->status = (status & 0x3fffffff) | ((status >> 32) & 0xc0000000);
 #endif
 
     return rc;

[-- Attachment #3: Type: text/plain, Size: 126 bytes --]

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^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [PATCH] x86/EFI: fix runtime call status for compat mode Dom0
  2013-04-26 13:35 [PATCH] x86/EFI: fix runtime call status for compat mode Dom0 Jan Beulich
@ 2013-04-26 14:16 ` Keir Fraser
  0 siblings, 0 replies; 2+ messages in thread
From: Keir Fraser @ 2013-04-26 14:16 UTC (permalink / raw)
  To: Jan Beulich, xen-devel

On 26/04/2013 14:35, "Jan Beulich" <JBeulich@suse.com> wrote:

> The top two bits (indicating error/warning classification) need to
> remain the top two bits.
> 
> Signed-off-by: Jan Beulich <jbeulich@suse.com>

Acked-by: Keir Fraser <keir@xen.org>

> --- a/xen/arch/x86/efi/runtime.c
> +++ b/xen/arch/x86/efi/runtime.c
> @@ -531,7 +531,7 @@ int efi_runtime_call(struct xenpf_efi_ru
>  #ifndef COMPAT
>      op->status = status;
>  #else
> -    op->status = (status & 0x3fffffff) | (status >> 62);
> +    op->status = (status & 0x3fffffff) | ((status >> 32) & 0xc0000000);
>  #endif
>  
>      return rc;
> 
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2013-04-26 13:35 [PATCH] x86/EFI: fix runtime call status for compat mode Dom0 Jan Beulich
2013-04-26 14:16 ` Keir Fraser

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