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 5160c0540a1a0cdd98e773455b71f81e)

Currently displaying revision 5160c0540a1a0cdd98e773455b71f81e , Show latest

From de50438d31a9932762c2c5d0903ad13c8d55687c 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 21fce4e..9ba4409 100644
--- a/exec.c
+++ b/exec.c
@@ -2503,10 +2503,12 @@ 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 5160c0540a1a0cdd98e773455b71f81e)

Places