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xen: Map "xen_nopv" parameter to "nopv" and mark it obsolete

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Clean up unnecessory code after that operation.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Signed-off-by: Juergen Gross <jgross@suse.com>
This commit is contained in:
Zhenzhong Duan 2019-07-11 20:02:10 +08:00 committed by Juergen Gross
parent 3097834637
commit b39b049749
2 changed files with 8 additions and 6 deletions
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2
Documentation/admin-guide/kernel-parameters.txt
View File

@ -5243,6 +5243,8 @@
xen_nopv [X86]
Disables the PV optimizations forcing the HVM guest to
run as generic HVM guest with no PV drivers.
This option is obsoleted by the "nopv" option, which
has equivalent effect for XEN platform.
xen_scrub_pages= [XEN]
Boolean option to control scrubbing pages before giving them back

12
arch/x86/xen/enlighten_hvm.c
View File

@ -210,18 +210,18 @@ static void __init xen_hvm_guest_init(void)
#endif
}
static bool xen_nopv;
static __init int xen_parse_nopv(char *arg)
{
xen_nopv = true;
return 0;
pr_notice("\"xen_nopv\" is deprecated, please use \"nopv\" instead\n");
if (xen_cpuid_base())
nopv = true;
return 0;
}
early_param("xen_nopv", xen_parse_nopv);
bool __init xen_hvm_need_lapic(void)
{
if (xen_nopv)
return false;
if (xen_pv_domain())
return false;
if (!xen_hvm_domain())
@ -233,7 +233,7 @@ bool __init xen_hvm_need_lapic(void)
static uint32_t __init xen_platform_hvm(void)
{
if (xen_pv_domain() || xen_nopv)
if (xen_pv_domain())
return 0;
return xen_cpuid_base();