diff options
| author | Ladi Prosek <lprosek@redhat.com> | 2017-01-13 10:48:29 +0100 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2017-01-17 10:12:07 -0500 |
| commit | 106543deb447c4005f9a9845f1f43a72547f6209 (patch) | |
| tree | 77cc7cd19144d0ea41aeca021b2d6c3f0070e355 | |
| parent | 9332965e1c46ddf4e19d7050f1e957a195c703fa (diff) | |
| download | seabios-hppa-106543deb447c4005f9a9845f1f43a72547f6209.zip seabios-hppa-106543deb447c4005f9a9845f1f43a72547f6209.tar.gz seabios-hppa-106543deb447c4005f9a9845f1f43a72547f6209.tar.bz2 | |
ahci: Set upper 32-bit registers to zero
If the HBA supports 64-bit addressing, the registers may contain
non-zero values, for example after reboot as a leftover from the
OS driving the adapter.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Ladi Prosek <lprosek@redhat.com>
| -rw-r--r-- | src/hw/ahci.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/hw/ahci.c b/src/hw/ahci.c index 261a7d2..2eee192 100644 --- a/src/hw/ahci.c +++ b/src/hw/ahci.c @@ -361,6 +361,11 @@ ahci_port_alloc(struct ahci_ctrl_s *ctrl, u32 pnr) ahci_port_writel(ctrl, pnr, PORT_LST_ADDR, (u32)port->list); ahci_port_writel(ctrl, pnr, PORT_FIS_ADDR, (u32)port->fis); + if (ctrl->caps & HOST_CAP_64) { + ahci_port_writel(ctrl, pnr, PORT_LST_ADDR_HI, 0); + ahci_port_writel(ctrl, pnr, PORT_FIS_ADDR_HI, 0); + } + return port; } |