diff options
| author | Juergen Gross <jgross@suse.com> | 2022-06-30 09:14:39 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-07-01 10:57:52 +0200 |
| commit | 96e8fc5818686d4a1591bb6907e7fdb64ef29884 (patch) | |
| tree | 52cac6393567e532ed0bf7aa5ceafbeebe5b1b52 /arch/x86/kernel/head64.c | |
| parent | 03c765b0e3b4cb5063276b086c76f7a612856a9a (diff) | |
| download | lwn-96e8fc5818686d4a1591bb6907e7fdb64ef29884.tar.gz lwn-96e8fc5818686d4a1591bb6907e7fdb64ef29884.zip | |
x86/xen: Use clear_bss() for Xen PV guests
Instead of clearing the bss area in assembly code, use the clear_bss()
function.
This requires to pass the start_info address as parameter to
xen_start_kernel() in order to avoid the xen_start_info being zeroed
again.
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20220630071441.28576-2-jgross@suse.com
Diffstat (limited to 'arch/x86/kernel/head64.c')
| -rw-r--r-- | arch/x86/kernel/head64.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index bd4a34100ed0..e7e233209a8c 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -426,7 +426,7 @@ void __init do_early_exception(struct pt_regs *regs, int trapnr) /* Don't add a printk in there. printk relies on the PDA which is not initialized yet. */ -static void __init clear_bss(void) +void __init clear_bss(void) { memset(__bss_start, 0, (unsigned long) __bss_stop - (unsigned long) __bss_start); |