On Thu, Oct 08, 2020 at 03:16:21PM -0400, Arvind Sankar wrote:
> This makes the #PF handler print the original CR2 value in case of
> error, instead of after aligning to PMD_SIZE.
> 
> Signed-off-by: Arvind Sankar <nived...@alum.mit.edu>
> ---
>  arch/x86/boot/compressed/ident_map_64.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/x86/boot/compressed/ident_map_64.c 
> b/arch/x86/boot/compressed/ident_map_64.c
> index 063a60edcf99..fd957b2625e9 100644
> --- a/arch/x86/boot/compressed/ident_map_64.c
> +++ b/arch/x86/boot/compressed/ident_map_64.c
> @@ -327,9 +327,6 @@ void do_boot_page_fault(struct pt_regs *regs, unsigned 
> long error_code)
>  
>       ghcb_fault = sev_es_check_ghcb_fault(address);
>  
> -     address   &= PMD_MASK;
> -     end        = address + PMD_SIZE;
> -
>       /*
>        * Check for unexpected error codes. Unexpected are:
>        *      - Faults on present pages
> @@ -345,5 +342,8 @@ void do_boot_page_fault(struct pt_regs *regs, unsigned 
> long error_code)
>        * Error code is sane - now identity map the 2M region around
>        * the faulting address.
>        */
> +     address   &= PMD_MASK;
> +     end        = address + PMD_SIZE;
> +
>       add_identity_map(address, end);
>  }

Reviewed-by: Joerg Roedel <jroe...@suse.de>

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