From 1d9e87b937d646be1950695f9ead35100d5ebbe6 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Fri, 26 Jun 2015 09:44:00 +0200 Subject: virtio: run drivers in 32bit mode virtio version 1.0 registers can (and actually do in the qemu implementation) live in mmio space. So we must run the blk and scsi virtio drivers in 32bit mode, otherwise we can't access them. This also allows to drop a bunch of GET_LOWFLAT calls from the virtio code in the following patches. Signed-off-by: Gerd Hoffmann --- Makefile | 2 +- src/block.c | 8 +++++--- src/hw/blockcmd.c | 5 +++-- src/hw/virtio-blk.c | 2 +- 4 files changed, 10 insertions(+), 7 deletions(-) diff --git a/Makefile b/Makefile index f97b1bd..e287530 100644 --- a/Makefile +++ b/Makefile @@ -34,7 +34,6 @@ SRCBOTH=misc.c stacks.c output.c string.c block.c cdrom.c disk.c mouse.c kbd.c \ hw/usb.c hw/usb-uhci.c hw/usb-ohci.c hw/usb-ehci.c \ hw/usb-hid.c hw/usb-msc.c hw/usb-uas.c \ hw/blockcmd.c hw/floppy.c hw/ata.c hw/ramdisk.c \ - hw/virtio-ring.c hw/virtio-pci.c hw/virtio-blk.c hw/virtio-scsi.c \ hw/lsi-scsi.c hw/esp-scsi.c hw/megasas.c SRC16=$(SRCBOTH) SRC32FLAT=$(SRCBOTH) post.c memmap.c malloc.c romfile.c x86.c optionroms.c \ @@ -43,6 +42,7 @@ SRC32FLAT=$(SRCBOTH) post.c memmap.c malloc.c romfile.c x86.c optionroms.c \ fw/coreboot.c fw/lzmadecode.c fw/multiboot.c fw/csm.c fw/biostables.c \ fw/paravirt.c fw/shadow.c fw/pciinit.c fw/smm.c fw/smp.c fw/mtrr.c fw/xen.c \ fw/acpi.c fw/mptable.c fw/pirtable.c fw/smbios.c fw/romfile_loader.c \ + hw/virtio-ring.c hw/virtio-pci.c hw/virtio-blk.c hw/virtio-scsi.c \ hw/tpm_drivers.c SRC32SEG=string.c output.c pcibios.c apm.c stacks.c hw/pci.c hw/serialio.c DIRS=src src/hw src/fw vgasrc diff --git a/src/block.c b/src/block.c index 3f7ecb1..a9b9851 100644 --- a/src/block.c +++ b/src/block.c @@ -503,8 +503,10 @@ process_op(struct disk_op_s *op) case DTYPE_CDEMU: ret = process_cdemu_op(op); break; - case DTYPE_VIRTIO_BLK: - ret = process_virtio_blk_op(op); + case DTYPE_VIRTIO_BLK: ; + extern void _cfunc32flat_process_virtio_blk_op(void); + ret = call32(_cfunc32flat_process_virtio_blk_op + , (u32)MAKE_FLATPTR(GET_SEG(SS), op), DISK_RET_EPARAM); break; case DTYPE_AHCI: ; extern void _cfunc32flat_process_ahci_op(void); @@ -526,7 +528,6 @@ process_op(struct disk_op_s *op) break; case DTYPE_USB: case DTYPE_UAS: - case DTYPE_VIRTIO_SCSI: case DTYPE_LSI_SCSI: case DTYPE_ESP_SCSI: case DTYPE_MEGASAS: @@ -534,6 +535,7 @@ process_op(struct disk_op_s *op) break; case DTYPE_USB_32: case DTYPE_UAS_32: + case DTYPE_VIRTIO_SCSI: case DTYPE_PVSCSI: ; extern void _cfunc32flat_scsi_process_op(void); ret = call32(_cfunc32flat_scsi_process_op diff --git a/src/hw/blockcmd.c b/src/hw/blockcmd.c index 78c0e65..4440201 100644 --- a/src/hw/blockcmd.c +++ b/src/hw/blockcmd.c @@ -35,14 +35,15 @@ cdb_cmd_data(struct disk_op_s *op, void *cdbcmd, u16 blocksize) return usb_cmd_data(op, cdbcmd, blocksize); case DTYPE_UAS: return uas_cmd_data(op, cdbcmd, blocksize); - case DTYPE_VIRTIO_SCSI: - return virtio_scsi_cmd_data(op, cdbcmd, blocksize); case DTYPE_LSI_SCSI: return lsi_scsi_cmd_data(op, cdbcmd, blocksize); case DTYPE_ESP_SCSI: return esp_scsi_cmd_data(op, cdbcmd, blocksize); case DTYPE_MEGASAS: return megasas_cmd_data(op, cdbcmd, blocksize); + case DTYPE_VIRTIO_SCSI: + if (!MODESEGMENT) + return virtio_scsi_cmd_data(op, cdbcmd, blocksize); case DTYPE_USB_32: if (!MODESEGMENT) return usb_cmd_data(op, cdbcmd, blocksize); diff --git a/src/hw/virtio-blk.c b/src/hw/virtio-blk.c index e2dbd3c..15ac171 100644 --- a/src/hw/virtio-blk.c +++ b/src/hw/virtio-blk.c @@ -77,7 +77,7 @@ virtio_blk_op(struct disk_op_s *op, int write) return status == VIRTIO_BLK_S_OK ? DISK_RET_SUCCESS : DISK_RET_EBADTRACK; } -int +int VISIBLE32FLAT process_virtio_blk_op(struct disk_op_s *op) { if (! CONFIG_VIRTIO_BLK) -- cgit v1.1