qemu/0014-PPC-KVM-Disable-mmu-notifier-check..patch
Andreas Färber 04929fcdcd Accepting request 221154 from home:a_faerber:branches:Virtualization
Add xen_disk discard support (olh), backport VMDK SCSI change from v1.6.2 maintenance update and update syscall numbers

OBS-URL: https://build.opensuse.org/request/show/221154
OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=179
2014-02-06 16:09:22 +00:00

32 lines
1.0 KiB
Diff

From 5d39d4ae6288aababdbf8c3da29342d587eb17f5 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 95c4356..58b0647 100644
--- a/exec.c
+++ b/exec.c
@@ -927,10 +927,12 @@ 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");
return NULL;
}
+#endif
/* Make name safe to use with mkstemp by replacing '/' with '_'. */
sanitized_name = g_strdup(block->mr->name);