On 27/06/14 18:19, Alexander Graf wrote:
>I do agree that this should have been in the patch description. Reza,
>could you please repost this with a proper patch description and as a
>checkpatch.pl compliant patch? Also please CC me on the next iteration:).
Sorry about this, I didn't see it when I posted the 2nd version of the patch.
New version is attached.
Signed-off-by: Reza Jelveh<address@hidden>
---
hw/ide/ahci.c | 12 +++++++++---
hw/ide/ahci.h | 2 ++
2 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
index 9bae22e..93aa981 100644
--- a/hw/ide/ahci.c
+++ b/hw/ide/ahci.c
@@ -639,6 +639,12 @@ static void ahci_write_fis_d2h(AHCIDevice *ad, uint8_t
*cmd_fis)
}
}
+static int prdt_tbl_entry_size(const AHCI_SG tbl)
static int ahci_populate_sglist(AHCIDevice *ad, QEMUSGList *sglist, int
offset)
{
AHCICmdHdr *cmd = ad->cur_cmd;
@@ -681,7 +687,7 @@ static int ahci_populate_sglist(AHCIDevice *ad, QEMUSGList
*sglist, int offset)
sum = 0;
for (i = 0; i < sglist_alloc_hint; i++) {
/* flags_size is zero-based */
- tbl_entry_size = (le32_to_cpu(tbl[i].flags_size) + 1);
+ tbl_entry_size = prdt_tbl_entry_size(tbl[i]);
if (offset <= (sum + tbl_entry_size)) {
off_idx = i;
off_pos = offset - sum;
@@ -700,12 +706,12 @@ static int ahci_populate_sglist(AHCIDevice *ad,
QEMUSGList *sglist, int offset)
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),
- le32_to_cpu(tbl[off_idx].flags_size) + 1 - off_pos);
+ prdt_tbl_entry_size(tbl[off_idx]) - off_pos);
for (i = off_idx + 1; i < sglist_alloc_hint; i++) {
/* flags_size is zero-based */
qemu_sglist_add(sglist, le64_to_cpu(tbl[i].addr),
- le32_to_cpu(tbl[i].flags_size) + 1);
+ prdt_tbl_entry_size(tbl[i]));
}
}
diff --git a/hw/ide/ahci.h b/hw/ide/ahci.h
index 9a4064f..f418b30 100644
--- a/hw/ide/ahci.h
+++ b/hw/ide/ahci.h
@@ -201,6 +201,8 @@
#define AHCI_COMMAND_TABLE_ACMD 0x40
+#define AHCI_PRDT_SIZE_MASK 0x3fffff