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 bc0171fec8e72817b34a28ce754dfaf3)

Currently displaying revision bc0171fec8e72817b34a28ce754dfaf3 , Show latest

From e975674515cfe9e086341f3684452520908037d9 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 bc0171fec8e72817b34a28ce754dfaf3)

Places