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qemu/0011-PPC-KVM-Disable-mmu-notifier-check.patch

33 lines
986 B
Diff

From 312bb9ff5f1448e2aebcccc4f124cf8f7fa1e0a0 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 fc75266..a50e148 100644
--- a/exec.c
+++ b/exec.c
@@ -1242,11 +1242,13 @@ static void *file_ram_alloc(RAMBlock *block,
int fd = -1;
int64_t page_size;
+#ifndef TARGET_PPC
if (kvm_enabled() && !kvm_has_sync_mmu()) {
error_setg(errp,
"host lacks kvm mmu notifiers, -mem-path unsupported");
return NULL;
}
+#endif
for (;;) {
fd = open(path, O_RDWR);