File 0012-PPC-KVM-Disable-mmu-notifier-check.patch of Package qemu.5922

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File 0012-PPC-KVM-Disable-mmu-notifier-check.patch of Package qemu.5922

From ed19da119532e1f44088b6e9adb3971ade79b290 Mon Sep 17 00:00:00 2001
From: Alexander Graf <agraf@suse.de>
Date: Fri, 6 Jan 2012 01:05:55 +0100
Subject: [PATCH] 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.
---
 exec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/exec.c b/exec.c
index 874ecfc2c6..027480029a 100644
--- a/exec.c
+++ b/exec.c
@@ -1134,11 +1134,13 @@ static void *file_ram_alloc(RAMBlock *block,
         goto error;
     }
 
+#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(memory_region_name(block->mr));

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File 0012-PPC-KVM-Disable-mmu-notifier-check.patch of Package qemu.5922

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