Re: [Xen-devel] [PATCH v2] efi: introduce efi_arch_flush_dcache_area

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Tue, 2015-09-08 at 11:38 +0100, Stefano Stabellini wrote:
> Objects loaded by FileHandle->Read need to be flushed from dcache,
> otherwise copy_from_paddr will read stale data when copying the kernel,
> causing a failure to boot.
> 
> Introduce efi_arch_flush_dcache_area and call it from read_file.
> 
> This commit introduces no functional changes on x86.
> 
> Reported-by: Mark Rutland <mark.rutland@xxxxxxx>
> Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> Release-acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
> CC: Mark Rutland <mark.rutland@xxxxxxx>
> CC: ian.campbell@xxxxxxxxxx
> CC: JBeulich@xxxxxxxx
> 

Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>


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