Commit d5835423 authored by Ard Biesheuvel's avatar Ard Biesheuvel Committed by Juergen Gross
Browse files

x86/pvh: Omit needless clearing of phys_base 



Since commit

  d9ec1158 ("x86/boot/64: Use RIP_REL_REF() to assign 'phys_base'")

phys_base is assigned directly rather than added to, so it is no longer
necessary to clear it after use.

Reviewed-by: default avatarJason Andryuk <jason.andryuk@amd.com>
Tested-by: default avatarJason Andryuk <jason.andryuk@amd.com>
Signed-off-by: default avatarArd Biesheuvel <ardb@kernel.org>
Message-ID: <20241009160438.3884381-10-ardb+git@google.com>
Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
parent bb12f48c

arch/x86/platform/pvh/head.S

+0 −7
Original line number Diff line number Diff line
@@ -180,13 +180,6 @@ SYM_CODE_START_LOCAL(pvh_start_xen) 
	ANNOTATE_RETPOLINE_SAFE

	call *%rax



	/*

	 * Clear phys_base.  __startup_64 will *add* to its value,

	 * so reset to 0.

	 */

	xor  %rbx, %rbx

	movq %rbx, phys_base(%rip)



	/* startup_64 expects boot_params in %rsi. */

	lea pvh_bootparams(%rip), %rsi

	jmp startup_64