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qemu/0012-PPC-KVM-Disable-mmu-notifier-check.patch
Olaf Hering c75061c9b8 Accepting request 383004 from home:olh:qemu
- Update to v2.6.0-rc0: See http://wiki.qemu-project.org/ChangeLog/2.6
* Patch queue updated from git://github.com/openSUSE/qemu.git opensuse-2.6
* Accept every size in DISCARD request from a guest (bsc#964427)
  0039-block-split-large-discard-requests-.patch
* Recognize libxl flag to disable flush in block device (bsc#879425)
  0040-xen_disk-Add-suse-specific-flush-di.patch
* Use correct flag for crypto tests
  0041-tests-Use-correct-config-param-for-.patch
* Fix build on powerpc:
  0042-build-link-with-libatomic-on-powerp.patch
* Patches dropped (upstreamed):
  seabios_checkrom_typo.patch
  seabios_avoid_smbios_signature_string.patch

OBS-URL: https://build.opensuse.org/request/show/383004
OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=289
2016-04-05 13:18:15 +00:00

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Diff

From bf5f6764c515fa8bf60937ef3db0a550c4c622ba 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 f46e596..fc2073b 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);