639b862c69
- kvm-pc-q35-Bump-max_cpus-to-4096-vcpus.patch [RHEL-11043] - kvm-kvm-replace-fprintf-with-error_report-printf-in-kvm_.patch [RHEL-57682] - kvm-kvm-refactor-core-virtual-machine-creation-into-its-.patch [RHEL-57682] - kvm-accel-kvm-refactor-dirty-ring-setup.patch [RHEL-57682] - kvm-KVM-Dynamic-sized-kvm-memslots-array.patch [RHEL-57682] - kvm-KVM-Define-KVM_MEMSLOTS_NUM_MAX_DEFAULT.patch [RHEL-57682] - kvm-KVM-Rename-KVMMemoryListener.nr_used_slots-to-nr_slo.patch [RHEL-57682] - kvm-KVM-Rename-KVMState-nr_slots-to-nr_slots_max.patch [RHEL-57682] - kvm-Require-new-dtrace-package.patch [RHEL-67900] - Resolves: RHEL-11043 ([RFE] [HPEMC] [RHEL-9.6] qemu-kvm: support up to 4096 VCPUs) - Resolves: RHEL-57682 (Bad migration performance when performing vGPU VM live migration ) - Resolves: RHEL-67900 (Failed to build qemu-kvm due to missing dtrace [rhel-9.6])
50 lines
1.7 KiB
Diff
50 lines
1.7 KiB
Diff
From f9dfed0e5fd03ee6fa7364801db7d101bf085a79 Mon Sep 17 00:00:00 2001
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From: Peter Xu <peterx@redhat.com>
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Date: Tue, 17 Sep 2024 12:38:33 -0400
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Subject: [PATCH 6/9] KVM: Define KVM_MEMSLOTS_NUM_MAX_DEFAULT
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RH-Author: Peter Xu <peterx@redhat.com>
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RH-MergeRequest: 284: KVM: Dynamic sized kvm memslots array
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RH-Jira: RHEL-57682
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RH-Acked-by: Juraj Marcin <None>
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RH-Commit: [5/7] c95bdaa406e76b943882fd75c4d345ca5fc397d4 (peterx/qemu-kvm)
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Make the default max nr_slots a macro, it's only used when KVM reports
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nothing.
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Reviewed-by: David Hildenbrand <david@redhat.com>
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Signed-off-by: Peter Xu <peterx@redhat.com>
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Link: https://lore.kernel.org/r/20240917163835.194664-3-peterx@redhat.com
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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(cherry picked from commit b34a908c8f24eedb0a8e5ff486b059b58fd793f4)
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Signed-off-by: Peter Xu <peterx@redhat.com>
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---
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accel/kvm/kvm-all.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
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index 44bf4180fa..3900de8883 100644
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--- a/accel/kvm/kvm-all.c
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+++ b/accel/kvm/kvm-all.c
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@@ -71,6 +71,8 @@
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/* Default num of memslots to be allocated when VM starts */
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#define KVM_MEMSLOTS_NR_ALLOC_DEFAULT 16
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+/* Default max allowed memslots if kernel reported nothing */
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+#define KVM_MEMSLOTS_NR_MAX_DEFAULT 32
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struct KVMParkedVcpu {
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unsigned long vcpu_id;
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@@ -2617,7 +2619,7 @@ static int kvm_init(MachineState *ms)
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/* If unspecified, use the default value */
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if (!s->nr_slots) {
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- s->nr_slots = 32;
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+ s->nr_slots_max = KVM_MEMSLOTS_NR_MAX_DEFAULT;
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}
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s->nr_as = kvm_check_extension(s, KVM_CAP_MULTI_ADDRESS_SPACE);
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--
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2.39.3
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