From 3e8ffe179beaa3dbd705caa6595a3a70627a9a96 Mon Sep 17 00:00:00 2001
From: Alexander Boettcher <alexander.boettcher@genode-labs.com>
Date: Mon, 10 Oct 2022 09:40:45 +0200
Subject: [PATCH] pci_decode: check sys_rom on boot

If the ROM is already available, no signal will wakeup the pci_decode app on
sigh registration.

 genodelabs/genode#4578
---
 repos/os/src/app/pci_decode/main.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/repos/os/src/app/pci_decode/main.cc b/repos/os/src/app/pci_decode/main.cc
index 9f5d22141c..6307f18544 100644
--- a/repos/os/src/app/pci_decode/main.cc
+++ b/repos/os/src/app/pci_decode/main.cc
@@ -291,6 +291,9 @@ void Main::sys_rom_update()
 {
 	sys_rom.update();
 
+	if (!sys_rom.valid())
+		return;
+
 	Xml_node xml = sys_rom.xml();
 
 	if (apic_capable) {
@@ -320,6 +323,8 @@ Main::Main(Env & env) : env(env)
 		apic_capable = xml.attribute_value("acpi", false);
 		msi_capable  = xml.attribute_value("msi",  false);
 	});
+
+	sys_rom_update();
 }