Re: [tip:x86/boot] x86/boot/compressed/64: Handle 5-level paging boot if kernel is above 4G

[Kirill A. Shutemov]

On Tue, Feb 13, 2018 at 12:41:22AM -0800, Andrei Vagin wrote:
> On Tue, Feb 13, 2018 at 11:08:16AM +0300, Kirill A. Shutemov wrote:
> > On Mon, Feb 12, 2018 at 10:51:56PM -0800, Andrei Vagin wrote:
> > > Hi Kirill,
> > > 
> > > Something is wrong in this patch.

Could you please check if this makes a difference?

diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 70b30f2bc9e0..99a0e7993252 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -332,7 +332,7 @@ ENTRY(startup_64)
 
 	/* Make sure we have GDT with 32-bit code segment */
 	leaq	gdt(%rip), %rax
-	movl	%eax, gdt64+2(%rip)
+	movq	%rax, gdt64+2(%rip)
 	lgdt	gdt64(%rip)
 
 	/*
-- 
 Kirill A. Shutemov