diff options
| -rw-r--r-- | hw/pcie_aer.c | 48 |
1 files changed, 31 insertions, 17 deletions
diff --git a/hw/pcie_aer.c b/hw/pcie_aer.c index acf826a..c565d39 100644 --- a/hw/pcie_aer.c +++ b/hw/pcie_aer.c @@ -176,14 +176,8 @@ static void pcie_aer_update_uncor_status(PCIDevice *dev) } /* - * pcie_aer_msg() is called recursively by - * pcie_aer_msg_alldev(), pci_aer_msg_vbridge() and pcie_aer_msg_root_port() - */ -static void pcie_aer_msg(PCIDevice *dev, const PCIEAERMsg *msg); - -/* * return value: - * true: error message is sent up + * true: error message needs to be sent up * false: error message is masked * * 6.2.6 Error Message Control @@ -193,8 +187,6 @@ static void pcie_aer_msg(PCIDevice *dev, const PCIEAERMsg *msg); static bool pcie_aer_msg_alldev(PCIDevice *dev, const PCIEAERMsg *msg) { - PCIDevice *parent_port; - if (!(pcie_aer_msg_is_uncor(msg) && (pci_get_word(dev->config + PCI_COMMAND) & PCI_COMMAND_SERR))) { return false; @@ -220,13 +212,21 @@ pcie_aer_msg_alldev(PCIDevice *dev, const PCIEAERMsg *msg) } /* send up error message */ + return true; +} + +/* Get parent port to send up error message on. + * TODO: clean up and open-code this logic */ +static PCIDevice *pcie_aer_parent_port(PCIDevice *dev) +{ + PCIDevice *parent_port; if (pci_is_express(dev) && pcie_cap_get_type(dev) == PCI_EXP_TYPE_ROOT_PORT) { - /* Root port notify system itself, + /* Root port can notify system itself, or send the error message to root complex event collector. */ /* - * if root port is associated to event collector, set - * parent_port = root complex event collector + * if root port is associated with an event collector, + * return the root complex event collector here. * For now root complex event collector isn't supported. */ parent_port = NULL; @@ -236,11 +236,10 @@ pcie_aer_msg_alldev(PCIDevice *dev, const PCIEAERMsg *msg) if (parent_port) { if (!pci_is_express(parent_port)) { /* just ignore it */ - return false; + return NULL; } - pcie_aer_msg(parent_port, msg); } - return true; + return parent_port; } /* @@ -381,8 +380,12 @@ static bool pcie_aer_msg_root_port(PCIDevice *dev, const PCIEAERMsg *msg) /* * 6.2.6 Error Message Control Figure 6-3 + * + * Returns true in case the error needs to + * be propagated up. + * TODO: open-code. */ -static void pcie_aer_msg(PCIDevice *dev, const PCIEAERMsg *msg) +static bool pcie_send_aer_msg(PCIDevice *dev, const PCIEAERMsg *msg) { uint8_t type; bool msg_sent; @@ -402,6 +405,18 @@ static void pcie_aer_msg(PCIDevice *dev, const PCIEAERMsg *msg) if (type == PCI_EXP_TYPE_ROOT_PORT && msg_sent) { pcie_aer_msg_root_port(dev, msg); } + return msg_sent; +} + +static void pcie_aer_msg(PCIDevice *dev, const PCIEAERMsg *msg) +{ + bool send_to_parent; + while (dev) { + if (!pcie_send_aer_msg(dev, msg)) { + return; + } + dev = pcie_aer_parent_port(dev); + } } static void pcie_aer_update_log(PCIDevice *dev, const PCIEAERErr *err) @@ -824,4 +839,3 @@ const VMStateDescription vmstate_pcie_aer_log = { VMSTATE_END_OF_LIST() } }; - |