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

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File PPC-KVM-Disable-mmu-notifier-check.patch of Package qemu (Revision ebf8c8cb01b23cfc7ce787083b34bcc2)

Currently displaying revision ebf8c8cb01b23cfc7ce787083b34bcc2 , Show latest

From: Alexander Graf <agraf@suse.de>
Date: Fri, 6 Jan 2012 01:05:55 +0100
Subject: 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.

Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 softmmu/physmem.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/softmmu/physmem.c b/softmmu/physmem.c
index 3524c04c2a162b717c3975cc15da..f69d6b00467f8b53614171fa17a9 100644
--- a/softmmu/physmem.c
+++ b/softmmu/physmem.c
@@ -2064,11 +2064,13 @@ 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
 
     size = HOST_PAGE_ALIGN(size);
     file_size = get_file_size(fd);

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File PPC-KVM-Disable-mmu-notifier-check.patch of Package qemu (Revision ebf8c8cb01b23cfc7ce787083b34bcc2)

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