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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=195.135.223.131; envelope-from=farosas@suse.de; helo=smtp-out2.suse.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @suse.de) X-ZM-MESSAGEID: 1752243754430116600 Content-Type: text/plain; charset="utf-8" From: Peter Xu Add a field to count how many remote faults one vCPU has taken. So far it's still not used, but will be soon. Reviewed-by: Fabiano Rosas Link: https://lore.kernel.org/r/20250613141217.474825-8-peterx@redhat.com Signed-off-by: Peter Xu Signed-off-by: Fabiano Rosas --- migration/postcopy-ram.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c index 9dfa92a62d..15ea106910 100644 --- a/migration/postcopy-ram.c +++ b/migration/postcopy-ram.c @@ -116,6 +116,8 @@ typedef struct PostcopyBlocktimeContext { uint64_t *vcpu_blocktime_start; /* blocktime per vCPU */ uint64_t *vcpu_blocktime_total; + /* count of faults per vCPU */ + uint64_t *vcpu_faults_count; /* page address per vCPU */ uintptr_t *vcpu_addr; /* total blocktime when all vCPUs are stopped */ @@ -136,6 +138,7 @@ static void destroy_blocktime_context(struct PostcopyBl= ocktimeContext *ctx) { g_free(ctx->vcpu_blocktime_start); g_free(ctx->vcpu_blocktime_total); + g_free(ctx->vcpu_faults_count); g_free(ctx->vcpu_addr); g_free(ctx); } @@ -155,6 +158,7 @@ static struct PostcopyBlocktimeContext *blocktime_conte= xt_new(void) =20 ctx->vcpu_blocktime_start =3D g_new0(uint64_t, smp_cpus); ctx->vcpu_blocktime_total =3D g_new0(uint64_t, smp_cpus); + ctx->vcpu_faults_count =3D g_new0(uint64_t, smp_cpus); ctx->vcpu_addr =3D g_new0(uintptr_t, smp_cpus); ctx->exit_notifier.notify =3D migration_exit_cb; qemu_add_exit_notifier(&ctx->exit_notifier); @@ -857,6 +861,7 @@ void mark_postcopy_blocktime_begin(uintptr_t addr, uint= 32_t ptid, dc->last_begin =3D current; dc->vcpu_blocktime_start[cpu] =3D current; dc->vcpu_addr[cpu] =3D addr; + dc->vcpu_faults_count[cpu]++; =20 /* * The caller should only inject a blocktime entry when the page is --=20 2.35.3