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| author | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-08-15 18:21:58 +0000 |
|---|---|---|
| committer | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-08-15 18:21:58 +0000 |
| commit | 72c7b06cb7e0cfded2678d531c454fcac16c93c3 (patch) | |
| tree | 060dc80ddef90c8e91c41ea01949e78f05e1a341 /hw/ide.c | |
| parent | 414f0dab0970795f043f2396fe9449f69b49b20c (diff) | |
| download | qemu-72c7b06cb7e0cfded2678d531c454fcac16c93c3.zip qemu-72c7b06cb7e0cfded2678d531c454fcac16c93c3.tar.gz qemu-72c7b06cb7e0cfded2678d531c454fcac16c93c3.tar.bz2 | |
Cancel IDE outstanding IO on device reset (Gleb Natapov)
Cancel AIO in IDE layer on device rest in order to be in deterministic state
during next boot.
Signed-off-by: Gleb Natapov <gleb@qumranet.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5011 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw/ide.c')
| -rw-r--r-- | hw/ide.c | 40 |
1 files changed, 26 insertions, 14 deletions
@@ -2844,6 +2844,23 @@ static void ide_dma_start(IDEState *s, BlockDriverCompletionFunc *dma_cb) } } +static void ide_dma_cancel(BMDMAState *bm) +{ + if (bm->status & BM_STATUS_DMAING) { + bm->status &= ~BM_STATUS_DMAING; + /* cancel DMA request */ + bm->ide_if = NULL; + bm->dma_cb = NULL; + if (bm->aiocb) { +#ifdef DEBUG_AIO + printf("aio_cancel\n"); +#endif + bdrv_aio_cancel(bm->aiocb); + bm->aiocb = NULL; + } + } +} + static void bmdma_cmd_writeb(void *opaque, uint32_t addr, uint32_t val) { BMDMAState *bm = opaque; @@ -2852,19 +2869,7 @@ static void bmdma_cmd_writeb(void *opaque, uint32_t addr, uint32_t val) #endif if (!(val & BM_CMD_START)) { /* XXX: do it better */ - if (bm->status & BM_STATUS_DMAING) { - bm->status &= ~BM_STATUS_DMAING; - /* cancel DMA request */ - bm->ide_if = NULL; - bm->dma_cb = NULL; - if (bm->aiocb) { -#ifdef DEBUG_AIO - printf("aio_cancel\n"); -#endif - bdrv_aio_cancel(bm->aiocb); - bm->aiocb = NULL; - } - } + ide_dma_cancel(bm); bm->cmd = val & 0x09; } else { if (!(bm->status & BM_STATUS_DMAING)) { @@ -3188,9 +3193,14 @@ static int pci_ide_load(QEMUFile* f, void *opaque, int version_id) return 0; } -static void piix3_reset(PCIIDEState *d) +static void piix3_reset(void *opaque) { + PCIIDEState *d = opaque; uint8_t *pci_conf = d->dev.config; + int i; + + for (i = 0; i < 2; i++) + ide_dma_cancel(&d->bmdma[i]); pci_conf[0x04] = 0x00; pci_conf[0x05] = 0x00; @@ -3224,6 +3234,7 @@ void pci_piix3_ide_init(PCIBus *bus, BlockDriverState **hd_table, int devfn, pci_conf[0x0b] = 0x01; // class_base = PCI_mass_storage pci_conf[0x0e] = 0x00; // header_type + qemu_register_reset(piix3_reset, d); piix3_reset(d); pci_register_io_region((PCIDevice *)d, 4, 0x10, @@ -3262,6 +3273,7 @@ void pci_piix4_ide_init(PCIBus *bus, BlockDriverState **hd_table, int devfn, pci_conf[0x0b] = 0x01; // class_base = PCI_mass_storage pci_conf[0x0e] = 0x00; // header_type + qemu_register_reset(piix3_reset, d); piix3_reset(d); pci_register_io_region((PCIDevice *)d, 4, 0x10, |