Commit eae446b7 authored by Juergen Gross's avatar Juergen Gross Committed by Boris Ostrovsky
Browse files

x86/xen: remove 32-bit awareness from startup_xen 



startup_xen is still 32-bit aware, even if no longer needed.

Replace the register macros by the 64-bit register names for making
it more readable.

Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20211028081221.2475-5-jgross@suse.com


Reviewed-by: default avatarBoris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: default avatarBoris Ostrovsky <boris.ostrovsky@oracle.com>
parent 3ac876e8

arch/x86/xen/xen-head.S

+6 −6
Original line number Diff line number Diff line
@@ -45,13 +45,13 @@ SYM_CODE_START(startup_xen) 


	/* Clear .bss */

	xor %eax,%eax

	mov $__bss_start, %_ASM_DI

	mov $__bss_stop, %_ASM_CX

	sub %_ASM_DI, %_ASM_CX

	shr $__ASM_SEL(2, 3), %_ASM_CX

	rep __ASM_SIZE(stos)

	mov $__bss_start, %rdi

	mov $__bss_stop, %rcx

	sub %rdi, %rcx

	shr $3, %rcx

	rep stosq



	mov %_ASM_SI, xen_start_info

	mov %rsi, xen_start_info

	mov initial_stack(%rip), %rsp



	/* Set up %gs.