vitalif
/
mirror_qemu
mirror of https://github.com/proxmox/mirror_qemu
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

ahci: Implement HBA reset 

The ahci code was missing its soft reset functionality. This wasn't really an
issue for Linux guests, but Windows gets confused when the controller doesn't
reset when it tells it so.

Using this patch I can now successfully boot Windows 7 from AHCI using AHCI
enabled SeaBIOS.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
master
Alexander Graf 2011-02-01 15:51:30 +01:00 committed by Kevin Wolf
parent 87e62065bb
commit 760c3e44d3
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
hw/ide/ahci.c
View File

@ -335,7 +335,7 @@ static void ahci_mem_writel(void *ptr, target_phys_addr_t addr, uint32_t val)
case HOST_CTL: /* R/W */
if (val & HOST_CTL_RESET) {
DPRINTF(-1, "HBA Reset\n");
/* FIXME reset? */
ahci_reset(container_of(s, AHCIPCIState, ahci));
} else {
s->control_regs.ghc = (val & 0x3) | HOST_CTL_AHCI_EN;
ahci_check_irq(s);
@ -1134,6 +1134,9 @@ void ahci_reset(void *opaque)
struct AHCIPCIState *d = opaque;
int i;
d->ahci.control_regs.irqstatus = 0;
d->ahci.control_regs.ghc = 0;
for (i = 0; i < SATA_PORTS; i++) {
ahci_reset_port(&d->ahci, i);
}