The patch titled
Subject: x86/xen: print a warning when HVMOP_get_mem_type fails
has been removed from the -mm tree. Its filename was
x86-xen-print-a-warning-when-hvmop_get_mem_type-fails.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: David Hildenbrand <david@xxxxxxxxxx>
Subject: x86/xen: print a warning when HVMOP_get_mem_type fails
HVMOP_get_mem_type is not expected to fail, "This call failing is
indication of something going quite wrong and it would be good to know
about this." [1]
Let's add a pr_warn_once().
[1] https://lkml.kernel.org/r/3b935aa0-6d85-0bcd-100e-15098add3c4c@xxxxxxxxxx
Link: https://lkml.kernel.org/r/20211005121430.30136-4-david@xxxxxxxxxx
Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
Suggested-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Cc: Baoquan He <bhe@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Dave Young <dyoung@xxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jason Wang <jasowang@xxxxxxxxxx>
Cc: Juergen Gross <jgross@xxxxxxxx>
Cc: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Mike Rapoport <rppt@xxxxxxxxxx>
Cc: Oscar Salvador <osalvador@xxxxxxx>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@xxxxxxxxx>
Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Vivek Goyal <vgoyal@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/xen/mmu_hvm.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/arch/x86/xen/mmu_hvm.c~x86-xen-print-a-warning-when-hvmop_get_mem_type-fails
+++ a/arch/x86/xen/mmu_hvm.c
@@ -22,8 +22,10 @@ static int xen_oldmem_pfn_is_ram(unsigne
.pfn = pfn,
};
- if (HYPERVISOR_hvm_op(HVMOP_get_mem_type, &a))
+ if (HYPERVISOR_hvm_op(HVMOP_get_mem_type, &a)) {
+ pr_warn_once("Unexpected HVMOP_get_mem_type failure\n");
return -ENXIO;
+ }
return a.mem_type != HVMMEM_mmio_dm;
}
#endif
_
Patches currently in -mm which might be from david@xxxxxxxxxx are
