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])
90 lines
2.9 KiB
Diff
90 lines
2.9 KiB
Diff
From 5b731abd3a932fe9a21f83f3849a3b3769906e19 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 12:38:35 -0400
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Subject: [PATCH 8/9] KVM: Rename KVMState->nr_slots to nr_slots_max
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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: [7/7] 43471483e7380119ba6415bff6d8ee6c69aa9cd7 (peterx/qemu-kvm)
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This value used to reflect the maximum supported memslots from KVM kernel.
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Rename it to be clearer.
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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/20240917163835.194664-5-peterx@redhat.com
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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(cherry picked from commit 943c742868c739c0b14fd996bad3adf744156fec)
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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 | 12 ++++++------
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include/sysemu/kvm_int.h | 4 ++--
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2 files changed, 8 insertions(+), 8 deletions(-)
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diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
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index e414d015c9..49dedda47e 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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@@ -183,8 +183,8 @@ static bool kvm_slots_grow(KVMMemoryListener *kml, unsigned int nr_slots_new)
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unsigned int i, cur = kml->nr_slots_allocated;
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KVMSlot *slots;
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- if (nr_slots_new > kvm_state->nr_slots) {
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- nr_slots_new = kvm_state->nr_slots;
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+ if (nr_slots_new > kvm_state->nr_slots_max) {
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+ nr_slots_new = kvm_state->nr_slots_max;
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}
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if (cur >= nr_slots_new) {
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@@ -225,7 +225,7 @@ unsigned int kvm_get_max_memslots(void)
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{
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KVMState *s = KVM_STATE(current_accel());
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- return s->nr_slots;
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+ return s->nr_slots_max;
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}
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unsigned int kvm_get_free_memslots(void)
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@@ -243,7 +243,7 @@ unsigned int kvm_get_free_memslots(void)
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}
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kvm_slots_unlock();
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- return s->nr_slots - used_slots;
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+ return s->nr_slots_max - used_slots;
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}
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/* Called with KVMMemoryListener.slots_lock held */
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@@ -2615,10 +2615,10 @@ static int kvm_init(MachineState *ms)
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(kvm_supported_memory_attributes & KVM_MEMORY_ATTRIBUTE_PRIVATE);
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kvm_immediate_exit = kvm_check_extension(s, KVM_CAP_IMMEDIATE_EXIT);
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- s->nr_slots = kvm_check_extension(s, KVM_CAP_NR_MEMSLOTS);
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+ s->nr_slots_max = kvm_check_extension(s, KVM_CAP_NR_MEMSLOTS);
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/* If unspecified, use the default value */
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- if (!s->nr_slots) {
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+ if (!s->nr_slots_max) {
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s->nr_slots_max = KVM_MEMSLOTS_NR_MAX_DEFAULT;
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}
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diff --git a/include/sysemu/kvm_int.h b/include/sysemu/kvm_int.h
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index b705dfc9b4..2c57194b6b 100644
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--- a/include/sysemu/kvm_int.h
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+++ b/include/sysemu/kvm_int.h
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@@ -103,8 +103,8 @@ struct KVMDirtyRingReaper {
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struct KVMState
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{
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AccelState parent_obj;
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-
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- int nr_slots;
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+ /* Max number of KVM slots supported */
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+ int nr_slots_max;
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int fd;
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int vmfd;
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int coalesced_mmio;
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--
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2.39.3
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