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qemu/0007-PPC-KVM-Disable-mmu-notifier-check.patch
Bruce Rogers 120d157844 Accepting request 662931 from home:bfrogers:branches:Virtualization
Follow up on ideas prompted by last change: clean up the patches generated by git workflow. There is no value to the first line (mbox From line), or [PATCH] on subject line. Get rid of those.
Other minor fixes and improvements to update_git.sh

OBS-URL: https://build.opensuse.org/request/show/662931
OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=443
2019-01-04 21:08:16 +00:00

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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>
---
exec.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/exec.c b/exec.c
index bb6170dbff..6ca259efaa 100644
--- a/exec.c
+++ b/exec.c
@@ -2248,11 +2248,13 @@ 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) {
/*