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51 lines
1.7 KiB
51 lines
1.7 KiB
1 month ago
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From 111d70a5bdc3ee0dde0a6def9e0c75ed20b4f093 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: 285: KVM: Dynamic sized kvm memslots array
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RH-Jira: RHEL-57685
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RH-Acked-by: Juraj Marcin <None>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Commit: [5/7] e4c2a2c2f3a809c8efb709521c7a94ba0627c69b (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 38393bc86b..87db0f9494 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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