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authorMark Brown <broonie@kernel.org>2025-07-14 11:34:16 +0100
committerMark Brown <broonie@kernel.org>2025-07-14 11:34:16 +0100
commitbfd291279f87a2cf2bebbf93d654a352b6bcd083 (patch)
tree3cb0366e1c0f111ea0d02bbaf69cabe799f0a89f /arch/x86/kvm/xen.c
parente977f3811effb0f4b50824fcadd6b40d2b4d867f (diff)
parent790d5f8ee6f2a27686d042abbce16b4e03ac1608 (diff)
ASoC: codec: Convert to GPIO descriptors for
Merge series from Peng Fan <peng.fan@nxp.com>: This patchset is a pick up of patch 1,2 from [1]. And I also collect Linus's R-b for patch 2. After this patchset, there is only one user of of_gpio.h left in sound driver(pxa2xx-ac97). of_gpio.h is deprecated, update the driver to use GPIO descriptors. Patch 1 is to drop legacy platform data which in-tree no users are using it Patch 2 is to convert to GPIO descriptors Checking the DTS that use the device, all are using GPIOD_ACTIVE_LOW polarity for reset-gpios, so all should work as expected with this patch. [1] https://lore.kernel.org/all/20250408-asoc-gpio-v1-0-c0db9d3fd6e9@nxp.com/
Diffstat (limited to 'arch/x86/kvm/xen.c')
-rw-r--r--arch/x86/kvm/xen.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/x86/kvm/xen.c b/arch/x86/kvm/xen.c
index 9b029bb29a16..5fa2cca43653 100644
--- a/arch/x86/kvm/xen.c
+++ b/arch/x86/kvm/xen.c
@@ -1971,8 +1971,19 @@ int kvm_xen_setup_evtchn(struct kvm *kvm,
{
struct kvm_vcpu *vcpu;
- if (ue->u.xen_evtchn.port >= max_evtchn_port(kvm))
- return -EINVAL;
+ /*
+ * Don't check for the port being within range of max_evtchn_port().
+ * Userspace can configure what ever targets it likes; events just won't
+ * be delivered if/while the target is invalid, just like userspace can
+ * configure MSIs which target non-existent APICs.
+ *
+ * This allow on Live Migration and Live Update, the IRQ routing table
+ * can be restored *independently* of other things like creating vCPUs,
+ * without imposing an ordering dependency on userspace. In this
+ * particular case, the problematic ordering would be with setting the
+ * Xen 'long mode' flag, which changes max_evtchn_port() to allow 4096
+ * instead of 1024 event channels.
+ */
/* We only support 2 level event channels for now */
if (ue->u.xen_evtchn.priority != KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL)