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Merge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into staging

# gpg: Signature made Mon Mar 23 16:51:45 2015 GMT using RSA key ID AAFC390E
# gpg: Can't check signature: public key not found

* remotes/jnsnow/tags/ide-pull-request:
  ahci-test: improve rw buffer patterns
  ahci: Fix sglist offset manipulation for BE machines
  ide: fix cmd_read_pio when nsectors > 1
  ide: fix cmd_write_pio when nsectors > 1

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2015-03-23 17:02:12 +00:00
commit 362ca922ee
3 changed files with 33 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
hw/ide/ahci.c
View File

@ -799,7 +799,7 @@ static int ahci_populate_sglist(AHCIDevice *ad, QEMUSGList *sglist,
qemu_sglist_init(sglist, qbus->parent, (sglist_alloc_hint - off_idx),
ad->hba->as);
qemu_sglist_add(sglist, le64_to_cpu(tbl[off_idx].addr + off_pos),
qemu_sglist_add(sglist, le64_to_cpu(tbl[off_idx].addr) + off_pos,
prdt_tbl_entry_size(&tbl[off_idx]) - off_pos);
for (i = off_idx + 1; i < sglist_alloc_hint; i++) {

10
hw/ide/core.c
View File

@ -587,14 +587,12 @@ static void ide_sector_read_cb(void *opaque, int ret)
n = s->req_nb_sectors;
}
/* Allow the guest to read the io_buffer */
ide_transfer_start(s, s->io_buffer, n * BDRV_SECTOR_SIZE, ide_sector_read);
ide_set_irq(s->bus);
ide_set_sector(s, ide_get_sector(s) + n);
s->nsector -= n;
/* Allow the guest to read the io_buffer */
ide_transfer_start(s, s->io_buffer, n * BDRV_SECTOR_SIZE, ide_sector_read);
s->io_buffer_offset += 512 * n;
ide_set_irq(s->bus);
}
static void ide_sector_read(IDEState *s)
@ -846,6 +844,7 @@ static void ide_sector_write_cb(void *opaque, int ret)
s->nsector -= n;
s->io_buffer_offset += 512 * n;
ide_set_sector(s, ide_get_sector(s) + n);
if (s->nsector == 0) {
/* no more sectors to write */
ide_transfer_stop(s);
@ -857,7 +856,6 @@ static void ide_sector_write_cb(void *opaque, int ret)
ide_transfer_start(s, s->io_buffer, n1 * BDRV_SECTOR_SIZE,
ide_sector_write);
}
ide_set_sector(s, ide_get_sector(s) + n);
if (win2k_install_hack && ((++s->irq_count % 16) == 0)) {
/* It seems there is a bug in the Windows 2000 installer HDD

36
tests/ahci-test.c
View File

@ -68,6 +68,32 @@ static void string_bswap16(uint16_t *s, size_t bytes)
}
}
static void generate_pattern(void *buffer, size_t len, size_t cycle_len)
{
int i, j;
unsigned char *tx = (unsigned char *)buffer;
unsigned char p;
size_t *sx;
/* Write an indicative pattern that varies and is unique per-cycle */
p = rand() % 256;
for (i = j = 0; i < len; i++, j++) {
tx[i] = p;
if (j % cycle_len == 0) {
p = rand() % 256;
}
}
/* force uniqueness by writing an id per-cycle */
for (i = 0; i < len / cycle_len; i++) {
j = i * cycle_len;
if (j + sizeof(*sx) <= len) {
sx = (size_t *)&tx[j];
*sx = i;
}
}
}
/*** Test Setup & Teardown ***/
/**
@ -736,7 +762,6 @@ static void ahci_test_io_rw_simple(AHCIQState *ahci, unsigned bufsize,
{
uint64_t ptr;
uint8_t port;
unsigned i;
unsigned char *tx = g_malloc(bufsize);
unsigned char *rx = g_malloc0(bufsize);
@ -752,9 +777,7 @@ static void ahci_test_io_rw_simple(AHCIQState *ahci, unsigned bufsize,
g_assert(ptr);
/* Write some indicative pattern to our buffer. */
for (i = 0; i < bufsize; i++) {
tx[i] = (bufsize - i);
}
generate_pattern(tx, bufsize, AHCI_SECTOR_SIZE);
memwrite(ptr, tx, bufsize);
/* Write this buffer to disk, then read it back to the DMA buffer. */
@ -865,7 +888,6 @@ static void test_dma_fragmented(void)
size_t bufsize = 4096;
unsigned char *tx = g_malloc(bufsize);
unsigned char *rx = g_malloc0(bufsize);
unsigned i;
uint64_t ptr;
ahci = ahci_boot_and_enable();
@ -873,9 +895,7 @@ static void test_dma_fragmented(void)
ahci_port_clear(ahci, px);
/* create pattern */
for (i = 0; i < bufsize; i++) {
tx[i] = (bufsize - i);
}
generate_pattern(tx, bufsize, AHCI_SECTOR_SIZE);
/* Create a DMA buffer in guest memory, and write our pattern to it. */
ptr = guest_alloc(ahci->parent->alloc, bufsize);