From 243223ae638e95cb6744f335010595c4de30d13c Mon Sep 17 00:00:00 2001 From: Ali Saidi Date: Fri, 19 Aug 2011 15:08:08 -0500 Subject: IDE: Fix issues with new PIIX kernel driver and our model. The driver can read the IDE config register as a 32 bit register since some adapters use bit 18 as a disable channel bit. If the size isn't set in a PRD it should be 64K according to the SPEC (and driver) not 128K. --- src/dev/ide_ctrl.cc | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'src/dev/ide_ctrl.cc') diff --git a/src/dev/ide_ctrl.cc b/src/dev/ide_ctrl.cc index a370c7f36..291ce1389 100644 --- a/src/dev/ide_ctrl.cc +++ b/src/dev/ide_ctrl.cc @@ -211,7 +211,10 @@ IdeController::readConfig(PacketPtr pkt) (uint32_t)pkt->get()); break; case sizeof(uint32_t): - panic("No 32bit reads implemented for this device."); + if (offset == IDEConfig) + pkt->set(ideConfig); + else + panic("No 32bit reads implemented for this device."); DPRINTF(IdeCtrl, "PCI read offset: %#x size: 4 data: %#x\n", offset, (uint32_t)pkt->get()); break; @@ -275,7 +278,10 @@ IdeController::writeConfig(PacketPtr pkt) offset, (uint32_t)pkt->get()); break; case sizeof(uint32_t): - panic("Write of unimplemented PCI config. register: %x\n", offset); + if (offset == IDEConfig) + ideConfig = pkt->get(); + else + panic("Write of unimplemented PCI config. register: %x\n", offset); break; default: panic("invalid access size(?) for PCI configspace!\n"); @@ -312,6 +318,7 @@ IdeController::writeConfig(PacketPtr pkt) break; case PCI_COMMAND: + DPRINTF(IdeCtrl, "Writing to PCI Command val: %#x\n", config.command); ioEnabled = (config.command & htole(PCI_CMD_IOSE)); bmEnabled = (config.command & htole(PCI_CMD_BME)); break; -- cgit v1.2.3