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From: Steve Sistare <steven.sistare@oracle.com>
To: qemu-devel@nongnu.org
Cc: "Peter Xu" <peterx@redhat.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Thomas Huth" <thuth@redhat.com>,
	"Daniel P. Berrangé" <berrange@redhat.com>,
	"Fabiano Rosas" <farosas@suse.de>,
	"Leonardo Bras" <leobras@redhat.com>,
	"Markus Armbruster" <armbru@redhat.com>,
	"Anthony PERARD" <anthony.perard@citrix.com>,
	"Stefan Berger" <stefanb@linux.vnet.ibm.com>,
	"Gerd Hoffmann" <kraxel@redhat.com>,
	"Stefano Stabellini" <sstabellini@kernel.org>,
	"Paul Durrant" <paul@xen.org>, "Eric Blake" <eblake@redhat.com>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Steve Sistare" <steven.sistare@oracle.com>
Subject: [PATCH V9 03/12] cpus: check running not RUN_STATE_RUNNING
Date: Wed,  3 Jan 2024 12:05:32 -0800	[thread overview]
Message-ID: <1704312341-66640-4-git-send-email-steven.sistare@oracle.com> (raw)
In-Reply-To: <1704312341-66640-1-git-send-email-steven.sistare@oracle.com>

When a vm transitions from running to suspended, runstate notifiers are
not called, so the notifiers still think the vm is running.  Hence, when
we call vm_start to restore the suspended state, we call vm_state_notify
with running=1.  However, some notifiers check for RUN_STATE_RUNNING.
They must check the running boolean instead.

No functional change.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
---
 backends/tpm/tpm_emulator.c | 2 +-
 hw/usb/hcd-ehci.c           | 2 +-
 hw/usb/redirect.c           | 2 +-
 hw/xen/xen-hvm-common.c     | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/backends/tpm/tpm_emulator.c b/backends/tpm/tpm_emulator.c
index f7f1b4a..254fce7 100644
--- a/backends/tpm/tpm_emulator.c
+++ b/backends/tpm/tpm_emulator.c
@@ -904,7 +904,7 @@ static void tpm_emulator_vm_state_change(void *opaque, bool running,
 
     trace_tpm_emulator_vm_state_change(running, state);
 
-    if (!running || state != RUN_STATE_RUNNING || !tpm_emu->relock_storage) {
+    if (!running || !tpm_emu->relock_storage) {
         return;
     }
 
diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
index 19b4534..10c82ce 100644
--- a/hw/usb/hcd-ehci.c
+++ b/hw/usb/hcd-ehci.c
@@ -2451,7 +2451,7 @@ static void usb_ehci_vm_state_change(void *opaque, bool running, RunState state)
      * USB-devices which have async handled packages have a packet in the
      * ep queue to match the completion with.
      */
-    if (state == RUN_STATE_RUNNING) {
+    if (running) {
         ehci_advance_async_state(ehci);
     }
 
diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c
index c9893df..3785bb0 100644
--- a/hw/usb/redirect.c
+++ b/hw/usb/redirect.c
@@ -1403,7 +1403,7 @@ static void usbredir_vm_state_change(void *priv, bool running, RunState state)
 {
     USBRedirDevice *dev = priv;
 
-    if (state == RUN_STATE_RUNNING && dev->parser != NULL) {
+    if (running && dev->parser != NULL) {
         usbredirparser_do_write(dev->parser); /* Flush any pending writes */
     }
 }
diff --git a/hw/xen/xen-hvm-common.c b/hw/xen/xen-hvm-common.c
index 565dc39..47e6cb1 100644
--- a/hw/xen/xen-hvm-common.c
+++ b/hw/xen/xen-hvm-common.c
@@ -623,7 +623,7 @@ void xen_hvm_change_state_handler(void *opaque, bool running,
 
     xen_set_ioreq_server_state(xen_domid,
                                state->ioservid,
-                               (rstate == RUN_STATE_RUNNING));
+                               running);
 }
 
 void xen_exit_notifier(Notifier *n, void *data)
-- 
1.8.3.1



  parent reply	other threads:[~2024-01-03 20:07 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-03 20:05 [PATCH V9 00/12] fix migration of suspended runstate Steve Sistare
2024-01-03 20:05 ` [PATCH V9 01/12] cpus: vm_was_suspended Steve Sistare
2024-01-03 20:05 ` [PATCH V9 02/12] cpus: stop vm in suspended runstate Steve Sistare
2024-01-03 20:05 ` Steve Sistare [this message]
2024-01-03 20:05 ` [PATCH V9 04/12] cpus: vm_resume Steve Sistare
2024-01-03 20:05 ` [PATCH V9 05/12] migration: propagate suspended runstate Steve Sistare
2024-01-03 20:05 ` [PATCH V9 06/12] migration: preserve " Steve Sistare
2024-01-03 20:05 ` [PATCH V9 07/12] migration: preserve suspended for snapshot Steve Sistare
2024-01-03 20:05 ` [PATCH V9 08/12] migration: preserve suspended for bg_migration Steve Sistare
2024-01-03 20:05 ` [PATCH V9 09/12] tests/qtest: migration events Steve Sistare
2024-01-03 20:05 ` [PATCH V9 10/12] tests/qtest: option to suspend during migration Steve Sistare
2024-01-03 20:05 ` [PATCH V9 11/12] tests/qtest: precopy migration with suspend Steve Sistare
2024-01-03 20:05 ` [PATCH V9 12/12] tests/qtest: postcopy " Steve Sistare
2024-01-04  4:37 ` [PATCH V9 00/12] fix migration of suspended runstate Peter Xu
2024-01-08 12:47   ` Markus Armbruster

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