47 lines
1.8 KiB
Diff
47 lines
1.8 KiB
Diff
From 9d5420c4370b74d60f082f2aa1225b19150ee629 Mon Sep 17 00:00:00 2001
|
|
From: David Hildenbrand <david@redhat.com>
|
|
Date: Thu, 19 Dec 2024 15:41:12 +0100
|
|
Subject: [PATCH 20/26] s390x/pv: prepare for memory devices
|
|
|
|
RH-Author: Thomas Huth <thuth@redhat.com>
|
|
RH-MergeRequest: 351: Enable virtio-mem support on s390x
|
|
RH-Jira: RHEL-72977
|
|
RH-Acked-by: David Hildenbrand <david@redhat.com>
|
|
RH-Acked-by: Juraj Marcin <None>
|
|
RH-Commit: [20/26] cdbe71168b9afa9657b94f1e7500568314c707a8 (thuth/qemu-kvm-cs)
|
|
|
|
Let's avoid checking for the maxram_size, and instead rely on the memory
|
|
limit determined in s390_memory_init(), that might be larger than
|
|
maxram_size, for example due to alignment purposes.
|
|
|
|
This check now correctly mimics what the kernel will check in
|
|
kvm_s390_pv_set_aside(), whereby a VM <= 2 GiB VM would end up using
|
|
a segment type ASCE.
|
|
|
|
Message-ID: <20241219144115.2820241-12-david@redhat.com>
|
|
Acked-by: Michael S. Tsirkin <mst@redhat.com>
|
|
Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
|
|
Signed-off-by: David Hildenbrand <david@redhat.com>
|
|
(cherry picked from commit a056332e732110c8ef0d40ffd49bd03afc2f04ca)
|
|
Signed-off-by: Thomas Huth <thuth@redhat.com>
|
|
---
|
|
target/s390x/kvm/pv.c | 2 +-
|
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
|
|
|
diff --git a/target/s390x/kvm/pv.c b/target/s390x/kvm/pv.c
|
|
index 424cce75ca..fa66607e7b 100644
|
|
--- a/target/s390x/kvm/pv.c
|
|
+++ b/target/s390x/kvm/pv.c
|
|
@@ -133,7 +133,7 @@ bool s390_pv_vm_try_disable_async(S390CcwMachineState *ms)
|
|
* If the feature is not present or if the VM is not larger than 2 GiB,
|
|
* KVM_PV_ASYNC_CLEANUP_PREPARE fill fail; no point in attempting it.
|
|
*/
|
|
- if ((MACHINE(ms)->ram_size <= 2 * GiB) ||
|
|
+ if (s390_get_memory_limit(ms) <= 2 * GiB ||
|
|
!kvm_check_extension(kvm_state, KVM_CAP_S390_PROTECTED_ASYNC_DISABLE)) {
|
|
return false;
|
|
}
|
|
--
|
|
2.48.1
|
|
|