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qemu/0013-PPC-KVM-Disable-mmu-notifier-check.patch
Andreas Färber 48be5b5c86 Accepting request 228442 from home:a_faerber:branches:Virtualization
Enhance update_git.sh script to not duplicate .patch filename extension and to fill in the SeaBIOS version automatically

OBS-URL: https://build.opensuse.org/request/show/228442
OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=199
2014-04-01 15:08:49 +00:00

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From 97b1499528c524628f0b0fe03917abb58e41f067 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 6a0bc94..6c2af34 100644
--- a/exec.c
+++ b/exec.c
@@ -1039,10 +1039,12 @@ 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");
goto error;
}
+#endif
/* Make name safe to use with mkstemp by replacing '/' with '_'. */
sanitized_name = g_strdup(block->mr->name);