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 1ce8905605f9206fb29b4ff6c646afea)

Currently displaying revision 1ce8905605f9206fb29b4ff6c646afea , Show latest

From 7b5988dd911b6af4745d34e0c8cfc1e95518d80a 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 03238a3449..1ca0f9e0ab 100644
--- a/exec.c
+++ b/exec.c
@@ -1975,11 +1975,13 @@ 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 1ce8905605f9206fb29b4ff6c646afea)

Places