On 2019/7/2 11:48, Boris Ostrovsky wrote:
On Mon, Jul 01, 2019 at 10:20:27AM +0800, Zhenzhong Duan wrote:
This reverts commit 8d693b911bb9c57009c24cb1772d205b84c7985c.

Instead we use an unified parameter 'nopv' for all the hypervisor
platforms.

Signed-off-by: Zhenzhong Duan<zhenzhong.d...@oracle.com>
Reviewed-by: Juergen Gross<jgr...@suse.com>
Cc: Boris Ostrovsky<boris.ostrov...@oracle.com>
Cc: Juergen Gross<jgr...@suse.com>
Cc: Stefano Stabellini<sstabell...@kernel.org>
Cc: Thomas Gleixner<t...@linutronix.de>
Cc: Ingo Molnar<mi...@redhat.com>
Cc: Borislav Petkov<b...@alien8.de>
---
  Documentation/admin-guide/kernel-parameters.txt |  4 ----
  arch/x86/xen/enlighten_hvm.c                    | 12 +-----------
  2 files changed, 1 insertion(+), 15 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt 
b/Documentation/admin-guide/kernel-parameters.txt
index 21e08af..d5c3dcc 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5251,10 +5251,6 @@
                        Disables the ticketlock slowpath using Xen PV
                        optimizations.
- xen_nopv [X86]
-                       Disables the PV optimizations forcing the HVM guest to
-                       run as generic HVM guest with no PV drivers.
-
So someone upgrades the kernel and suddenly things work differently?

At least there should be a warning that the option has been replaced
with 'nopv' (but I would actually keep this option working as well).

OK, I'll add new patch to map xen_nopv to nopv. So if 'xen_nopv' is used, we go

to the path for 'nopv'. I will be same effect.

Thanks

Zhenzhong

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