File PPC-KVM-Disable-mmu-notifier-check.patch of Package qemu

Overview Repositories Revisions Requests Users Attributes Meta

File PPC-KVM-Disable-mmu-notifier-check.patch of Package qemu (Revision 8f6cc408d6ff510a64b913e213b497a2)

Currently displaying revision 8f6cc408d6ff510a64b913e213b497a2 , Show latest

From: Alexander Graf <agraf@suse.de>
Date: Fri, 6 Jan 2012 01:05:55 +0100
Subject: PPC: KVM: Disable mmu notifier check

When using hugetlbfs (which is required for HV mode KVM on 970), we
check for MMU notifiers that on 970 can not be implemented properly.

So disable the check for mmu notifiers on PowerPC guests, making
KVM guests work there, even if possibly racy in some odd circumstances.

Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 softmmu/physmem.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/softmmu/physmem.c b/softmmu/physmem.c
index 3027747c0302c0904db2568eabb8..402a33cb95d898db6a951563c168 100644
--- a/softmmu/physmem.c
+++ b/softmmu/physmem.c
@@ -1957,11 +1957,13 @@ RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
         return NULL;
     }
 
+#ifndef TARGET_PPC
     if (kvm_enabled() && !kvm_has_sync_mmu()) {
         error_setg(errp,
                    "host lacks kvm mmu notifiers, -mem-path unsupported");
         return NULL;
     }
+#endif
 
     if (phys_mem_alloc != qemu_anon_ram_alloc) {
         /*

Places

File PPC-KVM-Disable-mmu-notifier-check.patch of Package qemu (Revision 8f6cc408d6ff510a64b913e213b497a2)

Places