From: Alexander Graf <agraf@suse.de>
Date: Fri, 6 Jan 2012 00:05:55 +0000 (+0100)
Subject: PPC: KVM: Disable mmu notifier check
X-Git-Tag: accepted/tizen/common/20141030.230811~34
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=de263b39a17c8dee85e1f985a92a282e0a665f38;p=platform%2Fupstream%2Fqemu.git

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.
---

diff --git a/exec.c b/exec.c
index 765bd94..33818c1 100644
--- a/exec.c
+++ b/exec.c
@@ -1037,11 +1037,13 @@ static void *file_ram_alloc(RAMBlock *block,
         return NULL;
     }
 
+#ifndef TARGET_PPC
     if (kvm_enabled() && !kvm_has_sync_mmu()) {
         error_setg(errp,
                    "host lacks kvm mmu notifiers, -mem-path unsupported");
         goto error;
     }
+#endif
 
     /* Make name safe to use with mkstemp by replacing '/' with '_'. */
     sanitized_name = g_strdup(block->mr->name);