Commit ab65f492 authored by Borislav Petkov's avatar Borislav Petkov
Browse files

x86/sev: Fix address space sparse warning 



Fix:

  arch/x86/kernel/sev.c:605:16: warning: incorrect type in assignment (different address spaces)
  arch/x86/kernel/sev.c:605:16:    expected struct snp_secrets_page_layout *layout
  arch/x86/kernel/sev.c:605:16:    got void [noderef] __iomem *[assigned] mem

Reported-by: default avatarkernel test robot <lkp@intel.com>
Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/202205022233.XgNDR7WR-lkp@intel.com
parent c2106a23

arch/x86/kernel/sev.c

+6 −3
Original line number Diff line number Diff line
@@ -589,20 +589,23 @@ static u64 __init get_secrets_page(void) 
static u64 __init get_snp_jump_table_addr(void)

{

	struct snp_secrets_page_layout *layout;

	void __iomem *mem;

	u64 pa, addr;



	pa = get_secrets_page();

	if (!pa)

		return 0;



	layout = (__force void *)ioremap_encrypted(pa, PAGE_SIZE);

	if (!layout) {

	mem = ioremap_encrypted(pa, PAGE_SIZE);

	if (!mem) {

		pr_err("Unable to locate AP jump table address: failed to map the SNP secrets page.\n");

		return 0;

	}



	layout = (__force struct snp_secrets_page_layout *)mem;



	addr = layout->os_area.ap_jump_table_pa;

	iounmap(layout);

	iounmap(mem);



	return addr;

}