File 0016-PPC-KVM-Disable-mmu-notifier-check..patch of Package qemu

Overview Repositories Revisions Requests Users Attributes Meta

File 0016-PPC-KVM-Disable-mmu-notifier-check..patch of Package qemu (Revision 40ba7c20a80b39871c7f3d49bd392294)

Currently displaying revision 40ba7c20a80b39871c7f3d49bd392294 , Show latest

From 77c18bad3637faeae838e920d94a4c84df2d8fbc 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 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/exec.c b/exec.c
index 455e0bb..14b1074 100644
--- a/exec.c
+++ b/exec.c
@@ -2486,10 +2486,12 @@ 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
 
     if (asprintf(&filename, "%s/qemu_back_mem.XXXXXX", path) == -1) {
         return NULL;

Places

File 0016-PPC-KVM-Disable-mmu-notifier-check..patch of Package qemu (Revision 40ba7c20a80b39871c7f3d49bd392294)

Places