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

Overview Repositories Revisions Requests Users Attributes Meta

File 0012-PPC-KVM-Disable-mmu-notifier-check.patch of Package qemu (Revision fb02770efb6a4941a61248b1bee8c978)

Currently displaying revision fb02770efb6a4941a61248b1bee8c978 , Show latest

From 63b90611b240cc52fc311f0f13eff5b8cca0524e 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 874ecfc..0274800 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));

Places

File 0012-PPC-KVM-Disable-mmu-notifier-check.patch of Package qemu (Revision fb02770efb6a4941a61248b1bee8c978)

Places