File 0014-PPC-KVM-Disable-mmu-notifier-check..patch of Package qemu

Overview Repositories Revisions Requests Users Attributes Meta

File 0014-PPC-KVM-Disable-mmu-notifier-check..patch of Package qemu (Revision d0e36229aeb646e2850db623d494bb35)

Currently displaying revision d0e36229aeb646e2850db623d494bb35 , Show latest

From f4b962121f2af60b6daa1c45b0be9ac271833e61 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 95c4356..58b0647 100644
--- a/exec.c
+++ b/exec.c
@@ -927,10 +927,12 @@ static void *file_ram_alloc(RAMBlock *block,
         return NULL;
     }
 
+#ifndef TARGET_PPC
     if (kvm_enabled() && !kvm_has_sync_mmu()) {
         fprintf(stderr, "host lacks kvm mmu notifiers, -mem-path unsupported\n");
         return NULL;
     }
+#endif
 
     /* Make name safe to use with mkstemp by replacing '/' with '_'. */
     sanitized_name = g_strdup(block->mr->name);

Places

File 0014-PPC-KVM-Disable-mmu-notifier-check..patch of Package qemu (Revision d0e36229aeb646e2850db623d494bb35)

Places