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[PULL,18/25] KVM: Define KVM_MEMSLOTS_NUM_MAX_DEFAULT

Message ID 20241015141711.528342-19-pbonzini@redhat.com (mailing list archive)
State New
Headers show
Series [PULL,01/25] target/i386: Don't construct a all-zero entry for CPUID[0xD 0x3f] | expand

Commit Message

Paolo Bonzini Oct. 15, 2024, 2:17 p.m. UTC 
From: Peter Xu <peterx@redhat.com>

Make the default max nr_slots a macro, it's only used when KVM reports
nothing.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20240917163835.194664-3-peterx@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 accel/kvm/kvm-all.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index f84413b7954..c32a84eb5ad 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -71,6 +71,8 @@ 
 
 /* Default num of memslots to be allocated when VM starts */
 #define  KVM_MEMSLOTS_NR_ALLOC_DEFAULT                      16
+/* Default max allowed memslots if kernel reported nothing */
+#define  KVM_MEMSLOTS_NR_MAX_DEFAULT                        32
 
 struct KVMParkedVcpu {
     unsigned long vcpu_id;
@@ -2613,7 +2615,7 @@  static int kvm_init(MachineState *ms)
 
     /* If unspecified, use the default value */
     if (!s->nr_slots) {
-        s->nr_slots = 32;
+        s->nr_slots_max = KVM_MEMSLOTS_NR_MAX_DEFAULT;
     }
 
     s->nr_as = kvm_check_extension(s, KVM_CAP_MULTI_ADDRESS_SPACE);