File 0007-PPC-KVM-Disable-mmu-notifier-check.patch of Package qemu

Overview Repositories Revisions Requests Users Attributes Meta

File 0007-PPC-KVM-Disable-mmu-notifier-check.patch of Package qemu (Revision be69e23da9c8b5c8e2077e58090a543e)

Currently displaying revision be69e23da9c8b5c8e2077e58090a543e , Show latest

From a98cb00cf67a473e816ecde4058f9f4c01cd6d57 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 4f5df07b6a..71520a9c89 100644
--- a/exec.c
+++ b/exec.c
@@ -2270,11 +2270,13 @@ RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
         return NULL;
     }
 
+#ifndef TARGET_PPC
     if (kvm_enabled() && !kvm_has_sync_mmu()) {
         error_setg(errp,
                    "host lacks kvm mmu notifiers, -mem-path unsupported");
         return NULL;
     }
+#endif
 
     if (phys_mem_alloc != qemu_anon_ram_alloc) {
         /*

Places

File 0007-PPC-KVM-Disable-mmu-notifier-check.patch of Package qemu (Revision be69e23da9c8b5c8e2077e58090a543e)

Places